/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_spec4_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:33:12,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:33:12,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:33:12,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:33:12,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:33:12,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:33:12,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:33:12,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:33:12,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:33:12,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:33:12,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:33:12,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:33:12,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:33:12,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:33:12,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:33:12,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:33:12,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:33:12,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:33:12,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:33:12,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:33:12,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:33:12,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:33:12,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:33:12,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:33:12,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:33:12,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:33:12,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:33:12,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:33:12,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:33:12,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:33:12,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:33:12,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:33:12,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:33:12,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:33:12,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:33:12,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:33:12,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:33:12,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:33:12,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:33:12,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:33:12,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:33:12,587 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 04:33:12,607 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:33:12,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:33:12,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:33:12,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:33:12,610 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:33:12,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:33:12,610 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:33:12,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:33:12,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:33:12,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:33:12,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:33:12,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:33:12,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:33:12,612 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:33:12,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:33:12,613 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:33:12,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:33:12,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:33:12,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:33:12,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:33:12,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:33:12,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:33:12,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:33:12,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:33:12,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:33:12,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:33:12,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:33:12,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:33:12,615 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 04:33:12,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:33:12,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:33:12,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:33:12,923 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:33:12,924 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:33:12,925 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product54.cil.c [2019-11-07 04:33:12,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5ed169f/6f74a5fe153041d996ac753e28c92a7e/FLAG8f9200ac3 [2019-11-07 04:33:13,545 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:33:13,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product54.cil.c [2019-11-07 04:33:13,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5ed169f/6f74a5fe153041d996ac753e28c92a7e/FLAG8f9200ac3 [2019-11-07 04:33:13,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5ed169f/6f74a5fe153041d996ac753e28c92a7e [2019-11-07 04:33:13,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:33:13,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:33:13,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:33:13,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:33:13,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:33:13,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:13" (1/1) ... [2019-11-07 04:33:13,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6117d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:13, skipping insertion in model container [2019-11-07 04:33:13,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:13" (1/1) ... [2019-11-07 04:33:13,817 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:33:13,879 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:33:14,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:33:14,361 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:33:14,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:33:14,512 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:33:14,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:14 WrapperNode [2019-11-07 04:33:14,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:33:14,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:33:14,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:33:14,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:33:14,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:14" (1/1) ... [2019-11-07 04:33:14,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:14" (1/1) ... [2019-11-07 04:33:14,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:14" (1/1) ... [2019-11-07 04:33:14,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:14" (1/1) ... [2019-11-07 04:33:14,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:14" (1/1) ... [2019-11-07 04:33:14,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:14" (1/1) ... [2019-11-07 04:33:14,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:14" (1/1) ... [2019-11-07 04:33:14,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:33:14,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:33:14,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:33:14,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:33:14,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:14" (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 04:33:14,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:33:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:33:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:33:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:33:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:33:14,684 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:33:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:33:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-11-07 04:33:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:33:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:33:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:33:14,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:33:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:33:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:33:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:33:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 04:33:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-07 04:33:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-11-07 04:33:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:33:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:33:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:33:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:33:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:33:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:33:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:33:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:33:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:33:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:33:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:33:14,692 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:33:14,692 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:33:14,692 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:33:14,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:33:14,692 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:33:14,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:33:14,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:33:14,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 04:33:14,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:33:14,693 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:33:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:33:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:33:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:33:14,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:33:14,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:33:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:33:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:33:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:33:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-07 04:33:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:33:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:33:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:33:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:33:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:33:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:33:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:33:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 04:33:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:33:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:33:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:33:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:33:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-11-07 04:33:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:33:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:33:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:33:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:33:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 04:33:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-11-07 04:33:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:33:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:33:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:33:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:33:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:33:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:33:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:33:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:33:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:33:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:33:14,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:33:14,701 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:33:14,701 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:33:14,701 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:33:14,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:33:14,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:33:14,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:33:14,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:33:14,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:33:14,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:33:14,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:33:14,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:33:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:33:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:33:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:33:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:33:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:33:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:33:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:33:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:33:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:33:16,259 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:33:16,260 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:33:16,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:33:16 BoogieIcfgContainer [2019-11-07 04:33:16,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:33:16,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:33:16,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:33:16,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:33:16,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:33:13" (1/3) ... [2019-11-07 04:33:16,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4455195a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:33:16, skipping insertion in model container [2019-11-07 04:33:16,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:14" (2/3) ... [2019-11-07 04:33:16,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4455195a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:33:16, skipping insertion in model container [2019-11-07 04:33:16,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:33:16" (3/3) ... [2019-11-07 04:33:16,271 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product54.cil.c [2019-11-07 04:33:16,281 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:33:16,293 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:33:16,305 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:33:16,333 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:33:16,334 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:33:16,334 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:33:16,334 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:33:16,334 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:33:16,334 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:33:16,335 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:33:16,335 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:33:16,358 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2019-11-07 04:33:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-07 04:33:16,368 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:16,369 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] [2019-11-07 04:33:16,372 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:16,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:16,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1586789797, now seen corresponding path program 1 times [2019-11-07 04:33:16,389 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:16,390 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144327156] [2019-11-07 04:33:16,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:16,808 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144327156] [2019-11-07 04:33:16,810 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:16,810 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:33:16,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150694752] [2019-11-07 04:33:16,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:33:16,818 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:16,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:33:16,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:33:16,836 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 2 states. [2019-11-07 04:33:16,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:16,921 INFO L93 Difference]: Finished difference Result 251 states and 302 transitions. [2019-11-07 04:33:16,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:33:16,924 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-11-07 04:33:16,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:16,945 INFO L225 Difference]: With dead ends: 251 [2019-11-07 04:33:16,945 INFO L226 Difference]: Without dead ends: 126 [2019-11-07 04:33:16,955 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 04:33:16,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-11-07 04:33:17,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-11-07 04:33:17,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-07 04:33:17,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 145 transitions. [2019-11-07 04:33:17,019 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 145 transitions. Word has length 42 [2019-11-07 04:33:17,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:17,019 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 145 transitions. [2019-11-07 04:33:17,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:33:17,020 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 145 transitions. [2019-11-07 04:33:17,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-07 04:33:17,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:17,026 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] [2019-11-07 04:33:17,027 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:17,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:17,027 INFO L82 PathProgramCache]: Analyzing trace with hash -418881645, now seen corresponding path program 1 times [2019-11-07 04:33:17,028 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:17,028 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190965692] [2019-11-07 04:33:17,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:17,191 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 04:33:17,192 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190965692] [2019-11-07 04:33:17,192 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:17,192 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:33:17,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422710147] [2019-11-07 04:33:17,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:33:17,196 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:17,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:33:17,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:33:17,197 INFO L87 Difference]: Start difference. First operand 126 states and 145 transitions. Second operand 3 states. [2019-11-07 04:33:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:17,229 INFO L93 Difference]: Finished difference Result 205 states and 236 transitions. [2019-11-07 04:33:17,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:33:17,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-11-07 04:33:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:17,232 INFO L225 Difference]: With dead ends: 205 [2019-11-07 04:33:17,232 INFO L226 Difference]: Without dead ends: 118 [2019-11-07 04:33:17,234 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 04:33:17,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-11-07 04:33:17,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-11-07 04:33:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-11-07 04:33:17,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 134 transitions. [2019-11-07 04:33:17,250 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 134 transitions. Word has length 43 [2019-11-07 04:33:17,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:17,251 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 134 transitions. [2019-11-07 04:33:17,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:33:17,251 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 134 transitions. [2019-11-07 04:33:17,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 04:33:17,255 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:17,255 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 04:33:17,255 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:17,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:17,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1622158275, now seen corresponding path program 1 times [2019-11-07 04:33:17,256 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:17,256 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027829844] [2019-11-07 04:33:17,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:17,441 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 04:33:17,441 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027829844] [2019-11-07 04:33:17,441 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:17,442 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:33:17,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364342120] [2019-11-07 04:33:17,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:33:17,444 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:17,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:33:17,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:33:17,445 INFO L87 Difference]: Start difference. First operand 118 states and 134 transitions. Second operand 7 states. [2019-11-07 04:33:17,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:17,800 INFO L93 Difference]: Finished difference Result 214 states and 247 transitions. [2019-11-07 04:33:17,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:33:17,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-11-07 04:33:17,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:17,803 INFO L225 Difference]: With dead ends: 214 [2019-11-07 04:33:17,803 INFO L226 Difference]: Without dead ends: 118 [2019-11-07 04:33:17,807 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:33:17,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-11-07 04:33:17,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-11-07 04:33:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-11-07 04:33:17,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 133 transitions. [2019-11-07 04:33:17,837 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 133 transitions. Word has length 46 [2019-11-07 04:33:17,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:17,838 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 133 transitions. [2019-11-07 04:33:17,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:33:17,838 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 133 transitions. [2019-11-07 04:33:17,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-07 04:33:17,844 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:17,848 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] [2019-11-07 04:33:17,848 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:17,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:17,849 INFO L82 PathProgramCache]: Analyzing trace with hash 2035409191, now seen corresponding path program 1 times [2019-11-07 04:33:17,849 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:17,849 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677528161] [2019-11-07 04:33:17,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:17,987 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 04:33:17,988 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677528161] [2019-11-07 04:33:17,989 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:17,989 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:33:17,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111315763] [2019-11-07 04:33:17,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:33:17,990 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:17,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:33:17,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:33:17,991 INFO L87 Difference]: Start difference. First operand 118 states and 133 transitions. Second operand 5 states. [2019-11-07 04:33:18,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:18,519 INFO L93 Difference]: Finished difference Result 310 states and 366 transitions. [2019-11-07 04:33:18,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:33:18,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-11-07 04:33:18,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:18,522 INFO L225 Difference]: With dead ends: 310 [2019-11-07 04:33:18,522 INFO L226 Difference]: Without dead ends: 214 [2019-11-07 04:33:18,523 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 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 04:33:18,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2019-11-07 04:33:18,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 197. [2019-11-07 04:33:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-11-07 04:33:18,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 216 transitions. [2019-11-07 04:33:18,549 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 216 transitions. Word has length 63 [2019-11-07 04:33:18,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:18,550 INFO L462 AbstractCegarLoop]: Abstraction has 197 states and 216 transitions. [2019-11-07 04:33:18,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:33:18,550 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 216 transitions. [2019-11-07 04:33:18,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-11-07 04:33:18,551 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:18,552 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] [2019-11-07 04:33:18,552 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:18,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:18,552 INFO L82 PathProgramCache]: Analyzing trace with hash -539562389, now seen corresponding path program 1 times [2019-11-07 04:33:18,552 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:18,553 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945491250] [2019-11-07 04:33:18,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:18,728 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 04:33:18,729 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945491250] [2019-11-07 04:33:18,729 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:18,729 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:33:18,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971207356] [2019-11-07 04:33:18,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:33:18,731 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:18,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:33:18,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:33:18,733 INFO L87 Difference]: Start difference. First operand 197 states and 216 transitions. Second operand 10 states. [2019-11-07 04:33:19,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:19,279 INFO L93 Difference]: Finished difference Result 570 states and 653 transitions. [2019-11-07 04:33:19,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:33:19,279 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2019-11-07 04:33:19,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:19,284 INFO L225 Difference]: With dead ends: 570 [2019-11-07 04:33:19,285 INFO L226 Difference]: Without dead ends: 395 [2019-11-07 04:33:19,286 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 04:33:19,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-11-07 04:33:19,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 381. [2019-11-07 04:33:19,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-11-07 04:33:19,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 424 transitions. [2019-11-07 04:33:19,338 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 424 transitions. Word has length 73 [2019-11-07 04:33:19,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:19,342 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 424 transitions. [2019-11-07 04:33:19,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:33:19,343 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 424 transitions. [2019-11-07 04:33:19,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-11-07 04:33:19,348 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:19,348 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] [2019-11-07 04:33:19,349 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:19,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:19,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1339403381, now seen corresponding path program 1 times [2019-11-07 04:33:19,349 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:19,350 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600576833] [2019-11-07 04:33:19,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-07 04:33:19,543 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600576833] [2019-11-07 04:33:19,543 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:19,543 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:33:19,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392474299] [2019-11-07 04:33:19,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:33:19,544 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:19,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:33:19,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:33:19,545 INFO L87 Difference]: Start difference. First operand 381 states and 424 transitions. Second operand 9 states. [2019-11-07 04:33:20,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:20,435 INFO L93 Difference]: Finished difference Result 871 states and 981 transitions. [2019-11-07 04:33:20,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 04:33:20,436 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2019-11-07 04:33:20,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:20,442 INFO L225 Difference]: With dead ends: 871 [2019-11-07 04:33:20,442 INFO L226 Difference]: Without dead ends: 696 [2019-11-07 04:33:20,444 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:33:20,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2019-11-07 04:33:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 693. [2019-11-07 04:33:20,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2019-11-07 04:33:20,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 771 transitions. [2019-11-07 04:33:20,498 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 771 transitions. Word has length 120 [2019-11-07 04:33:20,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:20,499 INFO L462 AbstractCegarLoop]: Abstraction has 693 states and 771 transitions. [2019-11-07 04:33:20,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:33:20,499 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 771 transitions. [2019-11-07 04:33:20,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-11-07 04:33:20,502 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:20,503 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:33:20,503 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:20,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:20,503 INFO L82 PathProgramCache]: Analyzing trace with hash -30660136, now seen corresponding path program 1 times [2019-11-07 04:33:20,504 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:20,504 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965905990] [2019-11-07 04:33:20,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-07 04:33:20,820 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965905990] [2019-11-07 04:33:20,820 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603033685] [2019-11-07 04:33:20,820 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 04:33:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:21,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 04:33:21,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:33:21,143 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-07 04:33:21,144 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:33:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-07 04:33:21,360 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:33:21,360 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [14] total 19 [2019-11-07 04:33:21,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114212177] [2019-11-07 04:33:21,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:33:21,361 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:21,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:33:21,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:33:21,362 INFO L87 Difference]: Start difference. First operand 693 states and 771 transitions. Second operand 7 states. [2019-11-07 04:33:21,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:21,694 INFO L93 Difference]: Finished difference Result 706 states and 785 transitions. [2019-11-07 04:33:21,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:33:21,695 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2019-11-07 04:33:21,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:21,700 INFO L225 Difference]: With dead ends: 706 [2019-11-07 04:33:21,700 INFO L226 Difference]: Without dead ends: 703 [2019-11-07 04:33:21,701 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2019-11-07 04:33:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2019-11-07 04:33:21,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 693. [2019-11-07 04:33:21,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2019-11-07 04:33:21,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 769 transitions. [2019-11-07 04:33:21,746 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 769 transitions. Word has length 120 [2019-11-07 04:33:21,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:21,747 INFO L462 AbstractCegarLoop]: Abstraction has 693 states and 769 transitions. [2019-11-07 04:33:21,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:33:21,747 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 769 transitions. [2019-11-07 04:33:21,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-11-07 04:33:21,750 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:21,751 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, 1, 1, 1, 1, 1] [2019-11-07 04:33:21,955 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:33:21,956 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:21,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:21,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1528462586, now seen corresponding path program 1 times [2019-11-07 04:33:21,957 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:21,957 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878861687] [2019-11-07 04:33:21,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-07 04:33:22,277 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878861687] [2019-11-07 04:33:22,277 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:22,277 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:33:22,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2588826] [2019-11-07 04:33:22,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:33:22,280 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:22,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:33:22,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:33:22,281 INFO L87 Difference]: Start difference. First operand 693 states and 769 transitions. Second operand 14 states. [2019-11-07 04:33:22,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:22,762 INFO L93 Difference]: Finished difference Result 1269 states and 1457 transitions. [2019-11-07 04:33:22,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 04:33:22,762 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2019-11-07 04:33:22,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:22,772 INFO L225 Difference]: With dead ends: 1269 [2019-11-07 04:33:22,772 INFO L226 Difference]: Without dead ends: 966 [2019-11-07 04:33:22,774 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-11-07 04:33:22,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2019-11-07 04:33:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 818. [2019-11-07 04:33:22,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2019-11-07 04:33:22,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 920 transitions. [2019-11-07 04:33:22,874 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 920 transitions. Word has length 127 [2019-11-07 04:33:22,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:22,876 INFO L462 AbstractCegarLoop]: Abstraction has 818 states and 920 transitions. [2019-11-07 04:33:22,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:33:22,876 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 920 transitions. [2019-11-07 04:33:22,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-07 04:33:22,884 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:22,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:22,885 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:22,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:22,885 INFO L82 PathProgramCache]: Analyzing trace with hash 2106525878, now seen corresponding path program 1 times [2019-11-07 04:33:22,886 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:22,887 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703211624] [2019-11-07 04:33:22,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:23,162 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 04:33:23,162 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703211624] [2019-11-07 04:33:23,163 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321271220] [2019-11-07 04:33:23,163 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 04:33:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:23,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-07 04:33:23,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:33:23,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:23,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:23,801 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:23,801 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:33:24,654 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:25,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:25,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:25,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:25,595 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 04:33:25,841 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:33:25,841 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-11-07 04:33:25,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380458616] [2019-11-07 04:33:25,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:33:25,842 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:25,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:33:25,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2019-11-07 04:33:25,843 INFO L87 Difference]: Start difference. First operand 818 states and 920 transitions. Second operand 14 states. [2019-11-07 04:33:28,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:28,252 INFO L93 Difference]: Finished difference Result 1730 states and 2015 transitions. [2019-11-07 04:33:28,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-07 04:33:28,253 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 133 [2019-11-07 04:33:28,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:28,261 INFO L225 Difference]: With dead ends: 1730 [2019-11-07 04:33:28,262 INFO L226 Difference]: Without dead ends: 934 [2019-11-07 04:33:28,268 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 243 SyntacticMatches, 10 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=388, Invalid=2474, Unknown=0, NotChecked=0, Total=2862 [2019-11-07 04:33:28,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2019-11-07 04:33:28,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 864. [2019-11-07 04:33:28,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 864 states. [2019-11-07 04:33:28,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 966 transitions. [2019-11-07 04:33:28,353 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 966 transitions. Word has length 133 [2019-11-07 04:33:28,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:28,354 INFO L462 AbstractCegarLoop]: Abstraction has 864 states and 966 transitions. [2019-11-07 04:33:28,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:33:28,354 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 966 transitions. [2019-11-07 04:33:28,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-11-07 04:33:28,361 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:28,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:33:28,569 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:33:28,569 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:28,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:28,570 INFO L82 PathProgramCache]: Analyzing trace with hash 506718464, now seen corresponding path program 1 times [2019-11-07 04:33:28,570 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:28,571 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844197237] [2019-11-07 04:33:28,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:33:28,782 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844197237] [2019-11-07 04:33:28,783 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112702172] [2019-11-07 04:33:28,783 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 04:33:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:28,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 54 conjunts are in the unsatisfiable core [2019-11-07 04:33:29,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:33:29,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:29,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:33:29,435 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:33:30,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,128 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,371 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,624 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-07 04:33:30,728 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1983844487] [2019-11-07 04:33:30,767 INFO L159 IcfgInterpreter]: Started Sifa with 107 locations of interest [2019-11-07 04:33:30,767 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:33:30,775 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:33:30,782 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:33:30,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:33:41,574 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-11-07 04:33:43,287 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-07 04:33:43,440 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:33:43,645 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:33:43,787 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:33:44,056 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-11-07 04:33:44,178 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:33:44,291 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:33:44,504 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-11-07 04:33:44,512 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-11-07 04:33:44,521 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-11-07 04:33:44,764 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:44,917 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:45,079 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:45,235 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:45,379 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:45,539 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:45,641 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:45,744 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:45,892 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:46,098 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:46,229 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:46,383 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:46,520 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:46,653 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:46,763 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:46,872 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:46,997 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:47,127 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:47,236 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:47,354 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:47,468 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:47,577 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:47,728 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:47,933 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:33:48,049 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:33:48,174 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:33:48,286 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:33:48,397 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:33:48,535 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:33:48,697 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-11-07 04:33:48,826 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-11-07 04:33:48,959 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-11-07 04:33:49,073 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-11-07 04:33:49,192 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-11-07 04:33:49,350 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-11-07 04:33:49,368 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 544 for LOIs [2019-11-07 04:33:49,391 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 542 for LOIs [2019-11-07 04:33:49,670 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 555 [2019-11-07 04:33:50,502 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:51,222 WARN L191 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 571