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 0.1.24-36ac518-m [2019-10-07 15:17:11,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:17:11,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:17:11,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:17:11,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:17:11,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:17:11,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:17:12,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:17:12,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:17:12,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:17:12,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:17:12,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:17:12,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:17:12,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:17:12,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:17:12,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:17:12,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:17:12,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:17:12,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:17:12,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:17:12,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:17:12,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:17:12,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:17:12,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:17:12,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:17:12,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:17:12,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:17:12,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:17:12,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:17:12,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:17:12,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:17:12,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:17:12,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:17:12,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:17:12,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:17:12,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:17:12,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:17:12,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:17:12,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:17:12,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:17:12,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:17:12,031 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 [2019-10-07 15:17:12,045 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:17:12,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:17:12,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:17:12,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:17:12,048 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:17:12,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:17:12,049 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:17:12,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:17:12,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:17:12,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:17:12,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:17:12,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:17:12,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:17:12,051 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:17:12,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:17:12,051 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:17:12,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:17:12,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:17:12,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:17:12,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:17:12,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:17:12,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:17:12,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:17:12,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:17:12,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:17:12,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:17:12,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:17:12,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:17:12,054 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 [2019-10-07 15:17:12,315 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:17:12,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:17:12,331 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:17:12,333 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:17:12,333 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:17:12,334 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-10-07 15:17:12,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4add6d8b0/c39d99a02a154212988a78aef04e5f0f/FLAG4bf3d4cf9 [2019-10-07 15:17:12,895 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:17:12,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-10-07 15:17:12,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4add6d8b0/c39d99a02a154212988a78aef04e5f0f/FLAG4bf3d4cf9 [2019-10-07 15:17:13,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4add6d8b0/c39d99a02a154212988a78aef04e5f0f [2019-10-07 15:17:13,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:17:13,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:17:13,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:17:13,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:17:13,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:17:13,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:17:13" (1/1) ... [2019-10-07 15:17:13,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11039f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13, skipping insertion in model container [2019-10-07 15:17:13,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:17:13" (1/1) ... [2019-10-07 15:17:13,274 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:17:13,329 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:17:13,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:17:13,765 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:17:13,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:17:13,933 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:17:13,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13 WrapperNode [2019-10-07 15:17:13,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:17:13,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:17:13,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:17:13,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:17:13,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13" (1/1) ... [2019-10-07 15:17:13,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13" (1/1) ... [2019-10-07 15:17:13,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13" (1/1) ... [2019-10-07 15:17:13,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13" (1/1) ... [2019-10-07 15:17:14,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13" (1/1) ... [2019-10-07 15:17:14,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13" (1/1) ... [2019-10-07 15:17:14,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13" (1/1) ... [2019-10-07 15:17:14,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:17:14,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:17:14,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:17:14,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:17:14,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:17:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:17:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:17:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:17:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:17:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:17:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:17:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:17:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:17:14,121 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:17:14,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:17:14,121 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:17:14,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:17:14,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 15:17:14,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 15:17:14,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:17:14,122 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:17:14,122 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:17:14,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:17:14,122 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:17:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:17:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:17:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:17:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:17:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:17:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:17:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:17:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:17:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:17:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:17:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:17:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:17:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:17:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:17:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-07 15:17:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:17:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:17:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:17:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:17:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:17:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:17:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:17:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:17:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:17:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:17:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:17:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:17:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:17:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:17:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:17:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:17:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:17:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:17:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:17:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:17:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:17:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:17:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 15:17:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:17:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:17:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:17:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:17:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:17:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:17:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 15:17:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:17:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:17:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:17:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:17:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:17:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:17:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:17:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:17:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-07 15:17:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:17:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:17:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:17:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:17:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:17:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:17:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:17:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:17:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:17:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:17:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:17:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:17:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:17:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:17:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:17:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:17:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:17:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:17:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:17:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:17:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:17:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:17:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:17:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:17:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:17:15,657 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:17:15,658 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:17:15,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:17:15 BoogieIcfgContainer [2019-10-07 15:17:15,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:17:15,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:17:15,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:17:15,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:17:15,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:17:13" (1/3) ... [2019-10-07 15:17:15,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9130ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:17:15, skipping insertion in model container [2019-10-07 15:17:15,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:13" (2/3) ... [2019-10-07 15:17:15,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9130ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:17:15, skipping insertion in model container [2019-10-07 15:17:15,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:17:15" (3/3) ... [2019-10-07 15:17:15,669 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2019-10-07 15:17:15,679 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:17:15,689 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:17:15,701 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:17:15,727 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:17:15,728 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:17:15,728 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:17:15,728 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:17:15,728 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:17:15,729 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:17:15,729 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:17:15,729 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:17:15,749 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-10-07 15:17:15,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-07 15:17:15,758 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:15,759 INFO L385 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] [2019-10-07 15:17:15,761 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:15,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:15,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1817160733, now seen corresponding path program 1 times [2019-10-07 15:17:15,776 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:15,777 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:15,777 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:15,777 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:15,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:16,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:16,172 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:16,172 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:16,173 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:17:16,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:17:16,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:17:16,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:17:16,193 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2019-10-07 15:17:16,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:16,233 INFO L93 Difference]: Finished difference Result 224 states and 269 transitions. [2019-10-07 15:17:16,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:17:16,235 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-07 15:17:16,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:16,248 INFO L225 Difference]: With dead ends: 224 [2019-10-07 15:17:16,248 INFO L226 Difference]: Without dead ends: 114 [2019-10-07 15:17:16,253 INFO L606 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 [2019-10-07 15:17:16,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-07 15:17:16,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-10-07 15:17:16,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-07 15:17:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2019-10-07 15:17:16,314 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 46 [2019-10-07 15:17:16,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:16,314 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2019-10-07 15:17:16,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:17:16,315 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2019-10-07 15:17:16,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-07 15:17:16,319 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:16,319 INFO L385 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] [2019-10-07 15:17:16,319 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:16,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:16,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1822053285, now seen corresponding path program 1 times [2019-10-07 15:17:16,320 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:16,321 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:16,321 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:16,321 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:16,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:16,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:16,467 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:16,467 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:16,468 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:17:16,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:17:16,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:17:16,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:17:16,472 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 3 states. [2019-10-07 15:17:16,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:16,523 INFO L93 Difference]: Finished difference Result 178 states and 203 transitions. [2019-10-07 15:17:16,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:17:16,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-07 15:17:16,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:16,527 INFO L225 Difference]: With dead ends: 178 [2019-10-07 15:17:16,527 INFO L226 Difference]: Without dead ends: 106 [2019-10-07 15:17:16,529 INFO L606 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 [2019-10-07 15:17:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-07 15:17:16,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-07 15:17:16,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-07 15:17:16,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2019-10-07 15:17:16,556 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 47 [2019-10-07 15:17:16,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:16,557 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2019-10-07 15:17:16,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:17:16,557 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2019-10-07 15:17:16,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-07 15:17:16,566 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:16,566 INFO L385 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] [2019-10-07 15:17:16,567 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:16,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:16,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1084796694, now seen corresponding path program 1 times [2019-10-07 15:17:16,567 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:16,568 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:16,568 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:16,568 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:16,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:16,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:16,795 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:16,795 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:16,795 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:17:16,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:17:16,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:17:16,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:17:16,797 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand 7 states. [2019-10-07 15:17:17,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:17,087 INFO L93 Difference]: Finished difference Result 187 states and 214 transitions. [2019-10-07 15:17:17,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:17:17,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-07 15:17:17,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:17,090 INFO L225 Difference]: With dead ends: 187 [2019-10-07 15:17:17,090 INFO L226 Difference]: Without dead ends: 106 [2019-10-07 15:17:17,092 INFO L606 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 [2019-10-07 15:17:17,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-07 15:17:17,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-07 15:17:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-07 15:17:17,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2019-10-07 15:17:17,107 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 50 [2019-10-07 15:17:17,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:17,108 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2019-10-07 15:17:17,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:17:17,108 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2019-10-07 15:17:17,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-07 15:17:17,110 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:17,110 INFO L385 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] [2019-10-07 15:17:17,110 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:17,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:17,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1850856177, now seen corresponding path program 1 times [2019-10-07 15:17:17,111 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:17,111 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:17,111 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:17,111 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:17,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:17,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:17,212 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:17,212 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:17,212 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:17:17,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:17:17,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:17:17,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:17:17,214 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 5 states. [2019-10-07 15:17:17,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:17,636 INFO L93 Difference]: Finished difference Result 277 states and 327 transitions. [2019-10-07 15:17:17,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:17:17,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-10-07 15:17:17,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:17,657 INFO L225 Difference]: With dead ends: 277 [2019-10-07 15:17:17,657 INFO L226 Difference]: Without dead ends: 196 [2019-10-07 15:17:17,658 INFO L606 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 [2019-10-07 15:17:17,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-07 15:17:17,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 179. [2019-10-07 15:17:17,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-10-07 15:17:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 199 transitions. [2019-10-07 15:17:17,693 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 199 transitions. Word has length 63 [2019-10-07 15:17:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:17,693 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 199 transitions. [2019-10-07 15:17:17,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:17:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 199 transitions. [2019-10-07 15:17:17,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-07 15:17:17,694 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:17,695 INFO L385 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] [2019-10-07 15:17:17,695 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:17,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:17,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1596423314, now seen corresponding path program 1 times [2019-10-07 15:17:17,697 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:17,697 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:17,697 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:17,698 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:17,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:17,841 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:17,841 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:17,841 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 15:17:17,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 15:17:17,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 15:17:17,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 15:17:17,844 INFO L87 Difference]: Start difference. First operand 179 states and 199 transitions. Second operand 6 states. [2019-10-07 15:17:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:18,023 INFO L93 Difference]: Finished difference Result 470 states and 538 transitions. [2019-10-07 15:17:18,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 15:17:18,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2019-10-07 15:17:18,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:18,028 INFO L225 Difference]: With dead ends: 470 [2019-10-07 15:17:18,028 INFO L226 Difference]: Without dead ends: 316 [2019-10-07 15:17:18,029 INFO L606 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 [2019-10-07 15:17:18,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2019-10-07 15:17:18,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 306. [2019-10-07 15:17:18,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-07 15:17:18,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 338 transitions. [2019-10-07 15:17:18,065 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 338 transitions. Word has length 72 [2019-10-07 15:17:18,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:18,066 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 338 transitions. [2019-10-07 15:17:18,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 15:17:18,066 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 338 transitions. [2019-10-07 15:17:18,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-07 15:17:18,067 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:18,067 INFO L385 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] [2019-10-07 15:17:18,068 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:18,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:18,068 INFO L82 PathProgramCache]: Analyzing trace with hash -721459112, now seen corresponding path program 1 times [2019-10-07 15:17:18,068 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:18,068 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:18,069 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:18,069 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:18,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:18,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:18,168 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:18,168 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:18,168 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:17:18,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:17:18,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:17:18,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:17:18,169 INFO L87 Difference]: Start difference. First operand 306 states and 338 transitions. Second operand 7 states. [2019-10-07 15:17:18,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:18,692 INFO L93 Difference]: Finished difference Result 486 states and 559 transitions. [2019-10-07 15:17:18,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:17:18,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2019-10-07 15:17:18,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:18,695 INFO L225 Difference]: With dead ends: 486 [2019-10-07 15:17:18,695 INFO L226 Difference]: Without dead ends: 332 [2019-10-07 15:17:18,696 INFO L606 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 [2019-10-07 15:17:18,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-07 15:17:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 305. [2019-10-07 15:17:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2019-10-07 15:17:18,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 335 transitions. [2019-10-07 15:17:18,720 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 335 transitions. Word has length 75 [2019-10-07 15:17:18,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:18,720 INFO L462 AbstractCegarLoop]: Abstraction has 305 states and 335 transitions. [2019-10-07 15:17:18,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:17:18,721 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 335 transitions. [2019-10-07 15:17:18,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-07 15:17:18,722 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:18,722 INFO L385 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] [2019-10-07 15:17:18,722 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:18,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:18,723 INFO L82 PathProgramCache]: Analyzing trace with hash 913236934, now seen corresponding path program 1 times [2019-10-07 15:17:18,723 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:18,723 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:18,723 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:18,724 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:18,789 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:18,789 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:18,789 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:17:18,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:17:18,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:17:18,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:17:18,791 INFO L87 Difference]: Start difference. First operand 305 states and 335 transitions. Second operand 3 states. [2019-10-07 15:17:18,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:18,844 INFO L93 Difference]: Finished difference Result 434 states and 489 transitions. [2019-10-07 15:17:18,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:17:18,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2019-10-07 15:17:18,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:18,852 INFO L225 Difference]: With dead ends: 434 [2019-10-07 15:17:18,852 INFO L226 Difference]: Without dead ends: 431 [2019-10-07 15:17:18,852 INFO L606 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 [2019-10-07 15:17:18,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-07 15:17:18,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 418. [2019-10-07 15:17:18,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-10-07 15:17:18,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 469 transitions. [2019-10-07 15:17:18,892 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 469 transitions. Word has length 75 [2019-10-07 15:17:18,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:18,893 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 469 transitions. [2019-10-07 15:17:18,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:17:18,893 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 469 transitions. [2019-10-07 15:17:18,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 15:17:18,901 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:18,901 INFO L385 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] [2019-10-07 15:17:18,902 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:18,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:18,902 INFO L82 PathProgramCache]: Analyzing trace with hash -636599952, now seen corresponding path program 1 times [2019-10-07 15:17:18,902 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:18,903 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:18,906 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:18,906 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:17:19,018 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:19,018 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:19,018 INFO L95 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 [2019-10-07 15:17:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:19,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 15:17:19,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:19,363 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:17:19,586 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:17:19,587 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-07 15:17:19,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:17:19,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:17:19,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:17:19,588 INFO L87 Difference]: Start difference. First operand 418 states and 469 transitions. Second operand 3 states. [2019-10-07 15:17:19,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:19,652 INFO L93 Difference]: Finished difference Result 768 states and 864 transitions. [2019-10-07 15:17:19,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:17:19,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-10-07 15:17:19,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:19,655 INFO L225 Difference]: With dead ends: 768 [2019-10-07 15:17:19,656 INFO L226 Difference]: Without dead ends: 375 [2019-10-07 15:17:19,657 INFO L606 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 [2019-10-07 15:17:19,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-07 15:17:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2019-10-07 15:17:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-07 15:17:19,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 409 transitions. [2019-10-07 15:17:19,681 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 409 transitions. Word has length 124 [2019-10-07 15:17:19,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:19,681 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 409 transitions. [2019-10-07 15:17:19,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:17:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 409 transitions. [2019-10-07 15:17:19,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-07 15:17:19,684 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:19,684 INFO L385 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] [2019-10-07 15:17:19,888 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:19,889 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:19,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:19,890 INFO L82 PathProgramCache]: Analyzing trace with hash -810853913, now seen corresponding path program 1 times [2019-10-07 15:17:19,890 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:19,890 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:19,891 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:19,891 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:20,162 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 15:17:20,162 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:20,163 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:20,163 INFO L95 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 [2019-10-07 15:17:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:20,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-07 15:17:20,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:20,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:20,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:20,698 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:20,699 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:21,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,974 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:22,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:22,260 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 15:17:22,260 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:17:22,261 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-07 15:17:22,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:17:22,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:17:22,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 15:17:22,263 INFO L87 Difference]: Start difference. First operand 375 states and 409 transitions. Second operand 14 states. [2019-10-07 15:17:24,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:24,024 INFO L93 Difference]: Finished difference Result 887 states and 1013 transitions. [2019-10-07 15:17:24,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:17:24,026 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2019-10-07 15:17:24,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:24,029 INFO L225 Difference]: With dead ends: 887 [2019-10-07 15:17:24,029 INFO L226 Difference]: Without dead ends: 537 [2019-10-07 15:17:24,032 INFO L606 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 [2019-10-07 15:17:24,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-10-07 15:17:24,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 455. [2019-10-07 15:17:24,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-07 15:17:24,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 500 transitions. [2019-10-07 15:17:24,059 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 500 transitions. Word has length 127 [2019-10-07 15:17:24,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:24,059 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 500 transitions. [2019-10-07 15:17:24,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:17:24,059 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 500 transitions. [2019-10-07 15:17:24,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-07 15:17:24,062 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:24,062 INFO L385 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] [2019-10-07 15:17:24,266 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:24,267 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:24,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:24,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1143164359, now seen corresponding path program 1 times [2019-10-07 15:17:24,268 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:24,269 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:24,269 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:24,269 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:24,584 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 15:17:24,584 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:24,585 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:24,585 INFO L95 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 [2019-10-07 15:17:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:24,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-07 15:17:24,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:24,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:24,934 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,107 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:25,107 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:25,400 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,667 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,827 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 15:17:25,990 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:17:26,029 INFO L162 IcfgInterpreter]: Started Sifa with 99 locations of interest [2019-10-07 15:17:26,029 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:17:26,037 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:17:26,044 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:17:26,045 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:17:33,953 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:17:35,643 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:17:35,765 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:17:35,884 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:17:36,040 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:17:36,334 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:36,534 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:36,716 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:36,893 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:37,247 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:17:37,410 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:37,566 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:37,674 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:37,828 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:37,968 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:37,975 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:17:38,200 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-07 15:17:38,311 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:38,445 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:38,575 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:38,909 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:39,079 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:39,305 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:39,559 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-07 15:17:39,691 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:39,819 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:40,137 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:40,352 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:40,481 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:40,791 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:40,991 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:41,135 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:41,442 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:41,771 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:42,083 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:42,186 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:42,398 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:42,608 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:42,746 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:42,885 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:42,994 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,115 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,318 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:43,429 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,585 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,694 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,803 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,921 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:44,075 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:44,186 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:44,321 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:44,560 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:17:44,678 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:44,802 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:44,988 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:17:45,097 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:45,219 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:45,332 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:17:45,455 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:17:45,580 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:17:45,695 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:45,809 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:45,932 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:46,059 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:46,173 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:46,297 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:46,450 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:46,563 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:46,694 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:46,808 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:46,921 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:47,042 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:47,320 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:47,427 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:47,619 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:47,822 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:47,930 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:48,055 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:48,163 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:48,271 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:48,393 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:48,527 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:48,656 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:48,784 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:49,060 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:17:49,171 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:49,299 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:49,515 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:17:49,635 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:49,824 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:50,040 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 573 [2019-10-07 15:17:50,152 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:17:50,277 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:17:50,480 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 575 [2019-10-07 15:17:50,594 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:50,724 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:17:50,949 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:51,060 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:51,183 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:51,644 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:51,913 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:52,230 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:52,404 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:52,521 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:52,638 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:52,848 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:52,957 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:53,080 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:53,279 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:53,387 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:53,512 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:53,620 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:53,728 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:53,845 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:54,273 WARN L191 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:17:54,535 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:54,851 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:55,159 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:17:55,267 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:55,395 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:55,716 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:55,894 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:56,028 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:56,227 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:56,335 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:56,455 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:56,659 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:56,766 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:56,886 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:57,089 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:57,198 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:57,318 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:57,426 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:57,540 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:57,656 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:57,855 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:17:57,964 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:58,086 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:58,202 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:58,313 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:58,437 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:58,626 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:17:58,735 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:58,855 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:59,050 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 566 [2019-10-07 15:17:59,159 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:59,282 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:59,488 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 568 [2019-10-07 15:17:59,598 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:17:59,723 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:17:59,988 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:00,096 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:00,216 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:00,409 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:00,516 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:00,639 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:00,747 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:00,858 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:00,977 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:01,100 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:01,210 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:01,331 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:01,444 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:01,555 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:01,680 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:01,795 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:01,911 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:02,032 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:02,223 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-07 15:18:02,333 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:02,455 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:02,652 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-07 15:18:02,768 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:02,892 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:03,111 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 575 [2019-10-07 15:18:03,227 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:18:03,354 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:18:03,471 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:18:03,585 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:18:03,709 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:18:03,912 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:04,021 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:04,139 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:04,342 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:04,453 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:04,572 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:04,681 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:04,793 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:04,910 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:05,034 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:05,145 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:05,268 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:05,486 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:05,599 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:05,722 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:05,909 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:06,032 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:06,155 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:06,356 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:06,474 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:06,596 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:06,599 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 550 for LOIs [2019-10-07 15:18:06,802 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:06,921 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:07,256 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:07,437 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 552 [2019-10-07 15:18:07,656 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:07,761 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:18:07,981 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:07,986 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-10-07 15:18:08,305 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:08,658 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:08,977 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:09,119 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:18:09,397 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:18:09,772 WARN L191 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:18:10,178 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 597 [2019-10-07 15:18:10,613 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 597 [2019-10-07 15:18:10,919 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:18:10,920 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:178) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:169) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:18:10,928 INFO L168 Benchmark]: Toolchain (without parser) took 57666.52 ms. Allocated memory was 138.9 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 101.6 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:10,929 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 15:18:10,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.19 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 169.0 MB in the end (delta: -67.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:10,929 INFO L168 Benchmark]: Boogie Preprocessor took 128.10 ms. Allocated memory is still 202.9 MB. Free memory was 169.0 MB in the beginning and 164.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:10,930 INFO L168 Benchmark]: RCFGBuilder took 1597.88 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 164.9 MB in the beginning and 143.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:10,930 INFO L168 Benchmark]: TraceAbstraction took 55264.66 ms. Allocated memory was 235.9 MB in the beginning and 1.2 GB in the end (delta: 965.7 MB). Free memory was 143.6 MB in the beginning and 1.1 GB in the end (delta: -990.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 15:18:10,932 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.19 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 169.0 MB in the end (delta: -67.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.10 ms. Allocated memory is still 202.9 MB. Free memory was 169.0 MB in the beginning and 164.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1597.88 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 164.9 MB in the beginning and 143.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 55264.66 ms. Allocated memory was 235.9 MB in the beginning and 1.2 GB in the end (delta: 965.7 MB). Free memory was 143.6 MB in the beginning and 1.1 GB in the end (delta: -990.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...