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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:20:00,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:20:00,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:20:00,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:20:00,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:20:00,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:20:00,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:20:00,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:20:00,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:20:00,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:20:00,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:20:00,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:20:00,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:20:00,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:20:00,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:20:00,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:20:00,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:20:00,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:20:00,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:20:00,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:20:00,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:20:00,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:20:00,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:20:00,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:20:00,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:20:00,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:20:00,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:20:00,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:20:00,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:20:00,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:20:00,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:20:00,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:20:00,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:20:00,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:20:00,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:20:00,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:20:00,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:20:00,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:20:00,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:20:00,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:20:00,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:20:00,813 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:20:00,846 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:20:00,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:20:00,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:20:00,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:20:00,852 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:20:00,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:20:00,852 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:20:00,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:20:00,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:20:00,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:20:00,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:20:00,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:20:00,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:20:00,854 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:20:00,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:20:00,855 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:20:00,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:20:00,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:20:00,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:20:00,855 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:20:00,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:20:00,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:20:00,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:20:00,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:20:00,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:20:00,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:20:00,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:20:00,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:20:00,858 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 [2019-10-15 03:20:01,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:20:01,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:20:01,191 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:20:01,192 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:20:01,193 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:20:01,193 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-10-15 03:20:01,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf7b49183/149ef847beec4e49900dcd2d8d0956d1/FLAG3ba7d764b [2019-10-15 03:20:01,869 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:20:01,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-10-15 03:20:01,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf7b49183/149ef847beec4e49900dcd2d8d0956d1/FLAG3ba7d764b [2019-10-15 03:20:02,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf7b49183/149ef847beec4e49900dcd2d8d0956d1 [2019-10-15 03:20:02,113 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:20:02,115 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:20:02,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:20:02,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:20:02,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:20:02,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:20:02" (1/1) ... [2019-10-15 03:20:02,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4924bc61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02, skipping insertion in model container [2019-10-15 03:20:02,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:20:02" (1/1) ... [2019-10-15 03:20:02,136 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:20:02,195 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:20:02,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:20:02,663 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:20:02,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:20:02,807 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:20:02,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02 WrapperNode [2019-10-15 03:20:02,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:20:02,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:20:02,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:20:02,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:20:02,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02" (1/1) ... [2019-10-15 03:20:02,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02" (1/1) ... [2019-10-15 03:20:02,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02" (1/1) ... [2019-10-15 03:20:02,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02" (1/1) ... [2019-10-15 03:20:02,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02" (1/1) ... [2019-10-15 03:20:02,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02" (1/1) ... [2019-10-15 03:20:02,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02" (1/1) ... [2019-10-15 03:20:02,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:20:02,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:20:02,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:20:02,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:20:02,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:20:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:20:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:20:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:20:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:20:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:20:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:20:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:20:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:20:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:20:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:20:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:20:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:20:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:20:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:20:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:20:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:20:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:20:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:20:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:20:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:20:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:20:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:20:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:20:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:20:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:20:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:20:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:20:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:20:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:20:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:20:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:20:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:20:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:20:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:20:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:20:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:20:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:20:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:20:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:20:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:20:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:20:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:20:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:20:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:20:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:20:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:20:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:20:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:20:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:20:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:20:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:20:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:20:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:20:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:20:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:20:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:20:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:20:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:20:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:20:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:20:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:20:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:20:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:20:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:20:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:20:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:20:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:20:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:20:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:20:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:20:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:20:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:20:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:20:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:20:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:20:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:20:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:20:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:20:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:20:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:20:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:20:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:20:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:20:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:20:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:20:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:20:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:20:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:20:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:20:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:20:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:20:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:20:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:20:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:20:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:20:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:20:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:20:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:20:04,647 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:20:04,648 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:20:04,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:20:04 BoogieIcfgContainer [2019-10-15 03:20:04,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:20:04,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:20:04,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:20:04,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:20:04,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:20:02" (1/3) ... [2019-10-15 03:20:04,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f131d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:20:04, skipping insertion in model container [2019-10-15 03:20:04,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:02" (2/3) ... [2019-10-15 03:20:04,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f131d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:20:04, skipping insertion in model container [2019-10-15 03:20:04,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:20:04" (3/3) ... [2019-10-15 03:20:04,658 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2019-10-15 03:20:04,669 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:20:04,679 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:20:04,691 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:20:04,723 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:20:04,724 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:20:04,724 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:20:04,724 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:20:04,725 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:20:04,725 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:20:04,725 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:20:04,725 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:20:04,752 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-10-15 03:20:04,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 03:20:04,762 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:04,764 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:04,766 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:04,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:04,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1817160733, now seen corresponding path program 1 times [2019-10-15 03:20:04,786 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:04,786 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441056726] [2019-10-15 03:20:04,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:04,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:04,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:05,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:05,153 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441056726] [2019-10-15 03:20:05,154 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:05,156 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:20:05,156 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524061059] [2019-10-15 03:20:05,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:20:05,160 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:05,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:20:05,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:20:05,174 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2019-10-15 03:20:05,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:05,215 INFO L93 Difference]: Finished difference Result 224 states and 269 transitions. [2019-10-15 03:20:05,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:20:05,216 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-15 03:20:05,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:05,229 INFO L225 Difference]: With dead ends: 224 [2019-10-15 03:20:05,229 INFO L226 Difference]: Without dead ends: 114 [2019-10-15 03:20:05,234 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:20:05,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-15 03:20:05,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-10-15 03:20:05,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-15 03:20:05,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2019-10-15 03:20:05,294 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 46 [2019-10-15 03:20:05,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:05,294 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2019-10-15 03:20:05,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:20:05,295 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2019-10-15 03:20:05,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-15 03:20:05,299 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:05,299 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:05,299 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:05,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:05,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1822053285, now seen corresponding path program 1 times [2019-10-15 03:20:05,300 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:05,300 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847984343] [2019-10-15 03:20:05,301 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:05,301 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:05,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:05,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847984343] [2019-10-15 03:20:05,527 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:05,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:20:05,527 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872717691] [2019-10-15 03:20:05,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:20:05,531 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:05,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:20:05,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:20:05,533 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 3 states. [2019-10-15 03:20:05,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:05,572 INFO L93 Difference]: Finished difference Result 178 states and 203 transitions. [2019-10-15 03:20:05,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:20:05,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-15 03:20:05,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:05,578 INFO L225 Difference]: With dead ends: 178 [2019-10-15 03:20:05,579 INFO L226 Difference]: Without dead ends: 106 [2019-10-15 03:20:05,581 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:20:05,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-15 03:20:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-15 03:20:05,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-15 03:20:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2019-10-15 03:20:05,600 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 47 [2019-10-15 03:20:05,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:05,601 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2019-10-15 03:20:05,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:20:05,601 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2019-10-15 03:20:05,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-15 03:20:05,604 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:05,604 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:05,604 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:05,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:05,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1084796694, now seen corresponding path program 1 times [2019-10-15 03:20:05,605 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:05,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281645716] [2019-10-15 03:20:05,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:05,606 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:05,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:05,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:05,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281645716] [2019-10-15 03:20:05,840 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:05,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:20:05,841 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445003635] [2019-10-15 03:20:05,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:20:05,842 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:05,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:20:05,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:20:05,842 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand 7 states. [2019-10-15 03:20:06,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:06,210 INFO L93 Difference]: Finished difference Result 187 states and 214 transitions. [2019-10-15 03:20:06,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:20:06,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-15 03:20:06,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:06,215 INFO L225 Difference]: With dead ends: 187 [2019-10-15 03:20:06,215 INFO L226 Difference]: Without dead ends: 106 [2019-10-15 03:20:06,217 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:20:06,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-15 03:20:06,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-15 03:20:06,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-15 03:20:06,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2019-10-15 03:20:06,239 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 50 [2019-10-15 03:20:06,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:06,240 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2019-10-15 03:20:06,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:20:06,240 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2019-10-15 03:20:06,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-15 03:20:06,249 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:06,249 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:06,250 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:06,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:06,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1850856177, now seen corresponding path program 1 times [2019-10-15 03:20:06,250 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:06,251 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824570069] [2019-10-15 03:20:06,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:06,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:06,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:06,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824570069] [2019-10-15 03:20:06,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:06,402 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:20:06,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541871165] [2019-10-15 03:20:06,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:20:06,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:06,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:20:06,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:20:06,405 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 5 states. [2019-10-15 03:20:06,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:06,893 INFO L93 Difference]: Finished difference Result 277 states and 327 transitions. [2019-10-15 03:20:06,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:20:06,893 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-10-15 03:20:06,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:06,898 INFO L225 Difference]: With dead ends: 277 [2019-10-15 03:20:06,898 INFO L226 Difference]: Without dead ends: 196 [2019-10-15 03:20:06,903 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:20:06,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-15 03:20:06,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 179. [2019-10-15 03:20:06,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-10-15 03:20:06,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 199 transitions. [2019-10-15 03:20:06,949 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 199 transitions. Word has length 63 [2019-10-15 03:20:06,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:06,950 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 199 transitions. [2019-10-15 03:20:06,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:20:06,950 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 199 transitions. [2019-10-15 03:20:06,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-15 03:20:06,953 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:06,953 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:06,953 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:06,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1596423314, now seen corresponding path program 1 times [2019-10-15 03:20:06,954 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:06,955 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996542192] [2019-10-15 03:20:06,955 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:06,955 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:06,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:07,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:07,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996542192] [2019-10-15 03:20:07,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:07,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:20:07,080 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967572959] [2019-10-15 03:20:07,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:20:07,081 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:07,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:20:07,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:20:07,082 INFO L87 Difference]: Start difference. First operand 179 states and 199 transitions. Second operand 6 states. [2019-10-15 03:20:07,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:07,286 INFO L93 Difference]: Finished difference Result 470 states and 538 transitions. [2019-10-15 03:20:07,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:20:07,286 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2019-10-15 03:20:07,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:07,291 INFO L225 Difference]: With dead ends: 470 [2019-10-15 03:20:07,291 INFO L226 Difference]: Without dead ends: 316 [2019-10-15 03:20:07,292 INFO L600 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 [2019-10-15 03:20:07,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2019-10-15 03:20:07,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 306. [2019-10-15 03:20:07,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-15 03:20:07,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 338 transitions. [2019-10-15 03:20:07,334 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 338 transitions. Word has length 72 [2019-10-15 03:20:07,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:07,335 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 338 transitions. [2019-10-15 03:20:07,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:20:07,335 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 338 transitions. [2019-10-15 03:20:07,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-15 03:20:07,337 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:07,337 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:07,337 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:07,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:07,338 INFO L82 PathProgramCache]: Analyzing trace with hash -721459112, now seen corresponding path program 1 times [2019-10-15 03:20:07,338 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:07,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055575460] [2019-10-15 03:20:07,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:07,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:07,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:07,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:07,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055575460] [2019-10-15 03:20:07,481 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:07,481 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:20:07,481 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744888022] [2019-10-15 03:20:07,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:20:07,484 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:07,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:20:07,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:20:07,485 INFO L87 Difference]: Start difference. First operand 306 states and 338 transitions. Second operand 7 states. [2019-10-15 03:20:08,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:08,067 INFO L93 Difference]: Finished difference Result 486 states and 559 transitions. [2019-10-15 03:20:08,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:20:08,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2019-10-15 03:20:08,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:08,071 INFO L225 Difference]: With dead ends: 486 [2019-10-15 03:20:08,071 INFO L226 Difference]: Without dead ends: 332 [2019-10-15 03:20:08,072 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:20:08,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-15 03:20:08,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 305. [2019-10-15 03:20:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2019-10-15 03:20:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 335 transitions. [2019-10-15 03:20:08,097 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 335 transitions. Word has length 75 [2019-10-15 03:20:08,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:08,098 INFO L462 AbstractCegarLoop]: Abstraction has 305 states and 335 transitions. [2019-10-15 03:20:08,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:20:08,098 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 335 transitions. [2019-10-15 03:20:08,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-15 03:20:08,100 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:08,100 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:08,100 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:08,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:08,101 INFO L82 PathProgramCache]: Analyzing trace with hash 913236934, now seen corresponding path program 1 times [2019-10-15 03:20:08,101 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:08,101 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405384374] [2019-10-15 03:20:08,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:08,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:08,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:08,158 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405384374] [2019-10-15 03:20:08,158 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:08,158 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:20:08,158 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155055258] [2019-10-15 03:20:08,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:20:08,159 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:08,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:20:08,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:20:08,160 INFO L87 Difference]: Start difference. First operand 305 states and 335 transitions. Second operand 3 states. [2019-10-15 03:20:08,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:08,202 INFO L93 Difference]: Finished difference Result 434 states and 489 transitions. [2019-10-15 03:20:08,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:20:08,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2019-10-15 03:20:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:08,206 INFO L225 Difference]: With dead ends: 434 [2019-10-15 03:20:08,207 INFO L226 Difference]: Without dead ends: 431 [2019-10-15 03:20:08,207 INFO L600 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 [2019-10-15 03:20:08,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-15 03:20:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 418. [2019-10-15 03:20:08,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-10-15 03:20:08,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 469 transitions. [2019-10-15 03:20:08,237 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 469 transitions. Word has length 75 [2019-10-15 03:20:08,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:08,238 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 469 transitions. [2019-10-15 03:20:08,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:20:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 469 transitions. [2019-10-15 03:20:08,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-15 03:20:08,241 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:08,241 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:08,241 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:08,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:08,242 INFO L82 PathProgramCache]: Analyzing trace with hash -636599952, now seen corresponding path program 1 times [2019-10-15 03:20:08,242 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:08,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391394049] [2019-10-15 03:20:08,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:08,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:08,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:08,331 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:20:08,331 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391394049] [2019-10-15 03:20:08,332 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129599770] [2019-10-15 03:20:08,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:20:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:08,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 03:20:08,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:20:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:08,685 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:20:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:20:08,919 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:20:08,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-15 03:20:08,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706368729] [2019-10-15 03:20:08,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:20:08,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:08,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:20:08,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:20:08,922 INFO L87 Difference]: Start difference. First operand 418 states and 469 transitions. Second operand 3 states. [2019-10-15 03:20:08,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:08,994 INFO L93 Difference]: Finished difference Result 768 states and 864 transitions. [2019-10-15 03:20:08,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:20:08,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-10-15 03:20:08,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:08,998 INFO L225 Difference]: With dead ends: 768 [2019-10-15 03:20:08,998 INFO L226 Difference]: Without dead ends: 375 [2019-10-15 03:20:08,999 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:20:09,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-15 03:20:09,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2019-10-15 03:20:09,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-15 03:20:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 409 transitions. [2019-10-15 03:20:09,026 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 409 transitions. Word has length 124 [2019-10-15 03:20:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:09,027 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 409 transitions. [2019-10-15 03:20:09,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:20:09,027 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 409 transitions. [2019-10-15 03:20:09,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-15 03:20:09,029 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:09,030 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:09,234 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:20:09,235 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:09,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:09,235 INFO L82 PathProgramCache]: Analyzing trace with hash -810853913, now seen corresponding path program 1 times [2019-10-15 03:20:09,236 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:09,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807702981] [2019-10-15 03:20:09,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:09,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:09,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 03:20:09,591 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807702981] [2019-10-15 03:20:09,591 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883081154] [2019-10-15 03:20:09,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:20:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:09,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-15 03:20:09,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:20:09,963 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:10,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:10,119 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:10,119 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:20:10,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:11,504 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:11,505 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:11,533 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:11,823 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 03:20:11,824 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:20:11,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-15 03:20:11,824 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115698631] [2019-10-15 03:20:11,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:20:11,825 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:11,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:20:11,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 03:20:11,826 INFO L87 Difference]: Start difference. First operand 375 states and 409 transitions. Second operand 14 states. [2019-10-15 03:20:13,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:13,829 INFO L93 Difference]: Finished difference Result 887 states and 1013 transitions. [2019-10-15 03:20:13,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:20:13,829 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2019-10-15 03:20:13,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:13,836 INFO L225 Difference]: With dead ends: 887 [2019-10-15 03:20:13,837 INFO L226 Difference]: Without dead ends: 537 [2019-10-15 03:20:13,839 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 231 SyntacticMatches, 9 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 770 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=308, Invalid=2142, Unknown=0, NotChecked=0, Total=2450 [2019-10-15 03:20:13,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-10-15 03:20:13,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 455. [2019-10-15 03:20:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-15 03:20:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 500 transitions. [2019-10-15 03:20:13,879 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 500 transitions. Word has length 127 [2019-10-15 03:20:13,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:13,881 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 500 transitions. [2019-10-15 03:20:13,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:20:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 500 transitions. [2019-10-15 03:20:13,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-15 03:20:13,885 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:13,885 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:14,093 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:20:14,094 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:14,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:14,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1143164359, now seen corresponding path program 1 times [2019-10-15 03:20:14,095 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:14,096 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797743028] [2019-10-15 03:20:14,096 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:14,096 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:14,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:14,410 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:20:14,411 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797743028] [2019-10-15 03:20:14,411 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842927887] [2019-10-15 03:20:14,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:20:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:14,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-15 03:20:14,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:20:14,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:14,768 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:14,939 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:20:15,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:15,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:15,369 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:15,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:15,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:15,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:15,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:15,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:15,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:15,756 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:20:15,911 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2087123706] [2019-10-15 03:20:15,941 INFO L162 IcfgInterpreter]: Started Sifa with 99 locations of interest [2019-10-15 03:20:15,942 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:20:15,948 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:20:15,957 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:20:15,958 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:20:23,981 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:20:25,695 WARN L191 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:20:25,826 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:20:25,963 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:20:26,124 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:20:26,385 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:26,578 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:26,748 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:26,943 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:27,297 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:20:27,486 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:27,629 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:27,773 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:27,899 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:28,016 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:28,024 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:20:28,234 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:20:28,368 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:28,491 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:28,622 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:28,834 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:28,993 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:29,148 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:29,368 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:29,596 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-15 03:20:29,698 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:29,825 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:30,162 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:30,278 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:30,495 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:30,815 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:30,944 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:31,169 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:31,485 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:31,694 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:20:31,814 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:32,130 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:32,482 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:32,797 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:32,938 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:33,049 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:33,171 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:33,388 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:33,498 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:33,670 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:33,781 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:33,905 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:34,025 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:34,154 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:34,294 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:34,423 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:34,658 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:20:34,779 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:34,908 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:35,104 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:20:35,226 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:35,349 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:35,470 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:20:35,583 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:20:35,717 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:20:35,833 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:35,948 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:36,132 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:36,284 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:36,408 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:36,533 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:36,670 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:36,786 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:36,920 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:37,035 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:37,151 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:37,275 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:37,570 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:37,681 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:37,802 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,002 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:38,112 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,239 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,355 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,482 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,602 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,737 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:38,850 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:38,974 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:39,249 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:20:39,361 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:39,491 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:39,709 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:20:39,821 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:40,023 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:40,244 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 573 [2019-10-15 03:20:40,358 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:20:40,488 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:20:40,709 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 575 [2019-10-15 03:20:40,824 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:40,964 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:20:41,171 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:41,281 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564