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_spec5_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:21:55,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:21:55,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:21:55,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:21:55,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:21:55,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:21:55,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:21:55,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:21:55,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:21:55,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:21:55,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:21:55,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:21:55,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:21:55,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:21:55,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:21:55,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:21:55,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:21:55,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:21:55,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:21:55,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:21:55,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:21:55,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:21:55,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:21:55,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:21:55,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:21:55,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:21:55,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:21:55,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:21:55,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:21:55,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:21:55,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:21:55,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:21:55,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:21:55,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:21:55,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:21:55,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:21:55,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:21:55,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:21:55,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:21:55,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:21:55,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:21:55,177 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 15:21:55,209 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:21:55,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:21:55,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:21:55,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:21:55,214 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:21:55,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:21:55,214 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:21:55,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:21:55,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:21:55,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:21:55,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:21:55,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:21:55,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:21:55,218 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:21:55,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:21:55,218 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:21:55,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:21:55,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:21:55,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:21:55,219 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:21:55,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:21:55,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:21:55,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:21:55,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:21:55,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:21:55,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:21:55,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:21:55,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:21:55,223 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 15:21:55,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:21:55,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:21:55,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:21:55,503 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:21:55,503 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:21:55,504 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2019-10-07 15:21:55,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0549d8051/24adb59a185340d08b2f8cd819a71529/FLAG1457e37c8 [2019-10-07 15:21:56,087 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:21:56,088 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2019-10-07 15:21:56,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0549d8051/24adb59a185340d08b2f8cd819a71529/FLAG1457e37c8 [2019-10-07 15:21:56,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0549d8051/24adb59a185340d08b2f8cd819a71529 [2019-10-07 15:21:56,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:21:56,420 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:21:56,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:21:56,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:21:56,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:21:56,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:56,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6885b406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:56, skipping insertion in model container [2019-10-07 15:21:56,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:21:56" (1/1) ... [2019-10-07 15:21:56,434 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:21:56,475 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:21:56,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:21:56,967 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:21:57,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:21:57,100 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:21:57,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:57 WrapperNode [2019-10-07 15:21:57,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:21:57,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:21:57,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:21:57,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:21:57,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:57" (1/1) ... [2019-10-07 15:21:57,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:57" (1/1) ... [2019-10-07 15:21:57,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:57" (1/1) ... [2019-10-07 15:21:57,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:57" (1/1) ... [2019-10-07 15:21:57,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:57" (1/1) ... [2019-10-07 15:21:57,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:57" (1/1) ... [2019-10-07 15:21:57,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:57" (1/1) ... [2019-10-07 15:21:57,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:21:57,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:21:57,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:21:57,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:21:57,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:57" (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 15:21:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:21:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:21:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:21:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:21:57,266 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:21:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:21:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:21:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:21:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:21:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:21:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:21:57,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:21:57,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:21:57,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:21:57,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:21:57,270 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-07 15:21:57,272 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:21:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:21:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:21:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:21:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:21:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:21:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:21:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:21:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:21:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:21:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:21:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:21:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:21:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:21:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:21:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:21:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:21:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:21:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:21:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:21:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:21:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:21:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:21:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:21:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:21:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:21:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:21:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:21:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:21:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:21:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:21:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:21:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:21:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:21:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:21:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:21:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:21:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:21:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:21:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:21:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:21:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-07 15:21:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:21:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:21:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:21:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:21:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:21:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:21:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:21:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:21:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:21:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:21:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:21:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:21:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:21:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:21:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:21:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:21:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:21:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:21:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:21:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:21:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:21:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:21:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:21:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:21:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:21:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:21:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:21:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:21:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:21:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:21:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:21:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:21:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:21:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:21:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:21:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:21:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:21:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:21:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:21:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:21:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:21:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:21:58,977 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:21:58,977 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:21:58,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:21:58 BoogieIcfgContainer [2019-10-07 15:21:58,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:21:58,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:21:58,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:21:58,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:21:58,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:21:56" (1/3) ... [2019-10-07 15:21:58,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528f3d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:21:58, skipping insertion in model container [2019-10-07 15:21:58,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:57" (2/3) ... [2019-10-07 15:21:58,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528f3d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:21:58, skipping insertion in model container [2019-10-07 15:21:58,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:21:58" (3/3) ... [2019-10-07 15:21:58,989 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2019-10-07 15:21:58,999 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:21:59,007 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:21:59,018 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:21:59,047 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:21:59,047 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:21:59,047 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:21:59,047 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:21:59,048 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:21:59,048 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:21:59,049 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:21:59,049 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:21:59,077 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2019-10-07 15:21:59,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 15:21:59,095 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:59,096 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:21:59,098 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:59,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:59,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1708035582, now seen corresponding path program 1 times [2019-10-07 15:21:59,111 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:59,112 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:59,112 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:59,113 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:59,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:59,496 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:59,497 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:59,498 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:21:59,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:21:59,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:21:59,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:21:59,532 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2019-10-07 15:21:59,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:59,582 INFO L93 Difference]: Finished difference Result 232 states and 279 transitions. [2019-10-07 15:21:59,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:21:59,584 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-07 15:21:59,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:59,597 INFO L225 Difference]: With dead ends: 232 [2019-10-07 15:21:59,598 INFO L226 Difference]: Without dead ends: 118 [2019-10-07 15:21:59,602 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 15:21:59,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-10-07 15:21:59,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-10-07 15:21:59,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-07 15:21:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 135 transitions. [2019-10-07 15:21:59,665 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 135 transitions. Word has length 52 [2019-10-07 15:21:59,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:59,666 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 135 transitions. [2019-10-07 15:21:59,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:21:59,666 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 135 transitions. [2019-10-07 15:21:59,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 15:21:59,670 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:59,670 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:21:59,671 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:59,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:59,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1973649622, now seen corresponding path program 1 times [2019-10-07 15:21:59,672 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:59,672 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:59,672 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:59,672 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:59,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:59,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:59,822 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:59,822 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:59,822 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:21:59,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:21:59,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:21:59,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:21:59,826 INFO L87 Difference]: Start difference. First operand 118 states and 135 transitions. Second operand 3 states. [2019-10-07 15:21:59,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:59,878 INFO L93 Difference]: Finished difference Result 186 states and 213 transitions. [2019-10-07 15:21:59,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:21:59,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-07 15:21:59,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:59,886 INFO L225 Difference]: With dead ends: 186 [2019-10-07 15:21:59,886 INFO L226 Difference]: Without dead ends: 110 [2019-10-07 15:21:59,889 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 15:21:59,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-07 15:21:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-07 15:21:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-07 15:21:59,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2019-10-07 15:21:59,944 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 53 [2019-10-07 15:21:59,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:59,945 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2019-10-07 15:21:59,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:21:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2019-10-07 15:21:59,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-07 15:21:59,952 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:59,953 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:21:59,953 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:59,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:59,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1339955029, now seen corresponding path program 1 times [2019-10-07 15:21:59,954 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:59,954 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:59,954 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:59,954 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:59,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:22:00,175 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:00,176 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:00,176 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:22:00,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:22:00,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:22:00,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:22:00,177 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 7 states. [2019-10-07 15:22:00,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:00,528 INFO L93 Difference]: Finished difference Result 195 states and 224 transitions. [2019-10-07 15:22:00,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:22:00,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-07 15:22:00,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:00,533 INFO L225 Difference]: With dead ends: 195 [2019-10-07 15:22:00,534 INFO L226 Difference]: Without dead ends: 110 [2019-10-07 15:22:00,536 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 15:22:00,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-07 15:22:00,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-07 15:22:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-07 15:22:00,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 123 transitions. [2019-10-07 15:22:00,559 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 123 transitions. Word has length 56 [2019-10-07 15:22:00,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:00,564 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 123 transitions. [2019-10-07 15:22:00,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:22:00,564 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 123 transitions. [2019-10-07 15:22:00,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-07 15:22:00,568 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:00,569 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:22:00,569 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:00,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:00,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1723163158, now seen corresponding path program 1 times [2019-10-07 15:22:00,571 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:00,572 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:00,572 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:00,572 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:00,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:22:00,705 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:00,705 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:00,706 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:22:00,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:22:00,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:22:00,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:22:00,707 INFO L87 Difference]: Start difference. First operand 110 states and 123 transitions. Second operand 5 states. [2019-10-07 15:22:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:01,193 INFO L93 Difference]: Finished difference Result 289 states and 342 transitions. [2019-10-07 15:22:01,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:22:01,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-07 15:22:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:01,200 INFO L225 Difference]: With dead ends: 289 [2019-10-07 15:22:01,200 INFO L226 Difference]: Without dead ends: 204 [2019-10-07 15:22:01,201 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 15:22:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-10-07 15:22:01,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 187. [2019-10-07 15:22:01,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-10-07 15:22:01,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 209 transitions. [2019-10-07 15:22:01,228 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 209 transitions. Word has length 69 [2019-10-07 15:22:01,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:01,228 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 209 transitions. [2019-10-07 15:22:01,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:22:01,229 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 209 transitions. [2019-10-07 15:22:01,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-07 15:22:01,230 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:01,230 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:22:01,230 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:01,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:01,231 INFO L82 PathProgramCache]: Analyzing trace with hash 661229768, now seen corresponding path program 1 times [2019-10-07 15:22:01,231 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:01,231 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:01,231 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:01,231 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:01,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:22:01,475 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:01,475 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:01,475 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:22:01,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:22:01,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:22:01,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:22:01,477 INFO L87 Difference]: Start difference. First operand 187 states and 209 transitions. Second operand 12 states. [2019-10-07 15:22:02,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:02,345 INFO L93 Difference]: Finished difference Result 503 states and 578 transitions. [2019-10-07 15:22:02,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:22:02,346 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2019-10-07 15:22:02,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:02,350 INFO L225 Difference]: With dead ends: 503 [2019-10-07 15:22:02,350 INFO L226 Difference]: Without dead ends: 341 [2019-10-07 15:22:02,352 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:22:02,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-10-07 15:22:02,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 329. [2019-10-07 15:22:02,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2019-10-07 15:22:02,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 377 transitions. [2019-10-07 15:22:02,402 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 377 transitions. Word has length 78 [2019-10-07 15:22:02,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:02,403 INFO L462 AbstractCegarLoop]: Abstraction has 329 states and 377 transitions. [2019-10-07 15:22:02,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:22:02,404 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 377 transitions. [2019-10-07 15:22:02,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-07 15:22:02,406 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:02,407 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:22:02,407 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:02,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:02,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1630693714, now seen corresponding path program 1 times [2019-10-07 15:22:02,408 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:02,408 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:02,408 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:02,408 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:02,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:02,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:22:02,492 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:02,492 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:02,493 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:22:02,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:22:02,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:22:02,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:22:02,494 INFO L87 Difference]: Start difference. First operand 329 states and 377 transitions. Second operand 7 states. [2019-10-07 15:22:03,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:03,143 INFO L93 Difference]: Finished difference Result 661 states and 783 transitions. [2019-10-07 15:22:03,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:22:03,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-07 15:22:03,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:03,148 INFO L225 Difference]: With dead ends: 661 [2019-10-07 15:22:03,148 INFO L226 Difference]: Without dead ends: 357 [2019-10-07 15:22:03,149 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:22:03,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-10-07 15:22:03,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 326. [2019-10-07 15:22:03,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-07 15:22:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 368 transitions. [2019-10-07 15:22:03,183 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 368 transitions. Word has length 78 [2019-10-07 15:22:03,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:03,183 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 368 transitions. [2019-10-07 15:22:03,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:22:03,184 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 368 transitions. [2019-10-07 15:22:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-07 15:22:03,185 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:03,185 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:22:03,185 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:03,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:03,186 INFO L82 PathProgramCache]: Analyzing trace with hash -204144966, now seen corresponding path program 1 times [2019-10-07 15:22:03,186 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:03,186 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:03,186 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:03,186 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:03,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:22:03,318 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:03,319 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:03,319 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 15:22:03,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 15:22:03,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 15:22:03,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:22:03,320 INFO L87 Difference]: Start difference. First operand 326 states and 368 transitions. Second operand 9 states. [2019-10-07 15:22:04,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:04,191 INFO L93 Difference]: Finished difference Result 999 states and 1158 transitions. [2019-10-07 15:22:04,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:22:04,193 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2019-10-07 15:22:04,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:04,197 INFO L225 Difference]: With dead ends: 999 [2019-10-07 15:22:04,198 INFO L226 Difference]: Without dead ends: 759 [2019-10-07 15:22:04,199 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:22:04,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-10-07 15:22:04,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 654. [2019-10-07 15:22:04,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2019-10-07 15:22:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 746 transitions. [2019-10-07 15:22:04,246 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 746 transitions. Word has length 81 [2019-10-07 15:22:04,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:04,246 INFO L462 AbstractCegarLoop]: Abstraction has 654 states and 746 transitions. [2019-10-07 15:22:04,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 15:22:04,247 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 746 transitions. [2019-10-07 15:22:04,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-07 15:22:04,249 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:04,249 INFO L385 BasicCegarLoop]: trace histogram [3, 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 15:22:04,249 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:04,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:04,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1911582456, now seen corresponding path program 1 times [2019-10-07 15:22:04,250 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:04,250 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:04,250 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:04,250 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:04,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:04,410 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 15:22:04,410 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:04,410 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:22:04,410 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 15:22:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:04,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 15:22:04,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:22:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:22:04,792 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:22:05,199 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 15:22:05,200 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:22:05,228 INFO L162 IcfgInterpreter]: Started Sifa with 100 locations of interest [2019-10-07 15:22:05,229 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:22:05,235 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:22:05,243 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:22:05,244 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:22:15,532 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:22:17,324 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:22:17,459 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:17,597 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:17,721 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:18,040 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:18,350 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:18,594 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:18,863 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:19,501 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:22:19,693 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:19,894 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:20,043 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:20,166 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:20,320 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:20,331 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:22:20,624 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-07 15:22:20,739 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:20,844 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:21,006 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:21,119 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:21,236 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:21,374 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:21,514 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:21,648 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:21,784 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:22,026 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-07 15:22:22,139 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:22,301 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:22,414 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:22,516 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:22,639 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:22,749 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:22,881 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:23,003 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:23,117 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:23,337 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:23,561 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:23,688 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:23,795 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:24,023 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:24,246 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:24,388 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:24,591 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:24,719 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:24,919 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:25,055 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:25,376 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:25,518 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:25,635 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:25,785 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,093 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:26,224 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,353 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,466 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,581 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,707 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,852 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:26,977 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:27,105 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:27,317 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:22:27,435 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:27,562 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:27,795 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:27,910 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:28,038 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:28,154 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:28,269 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:28,419 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:28,539 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:28,652 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:28,859 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:28,994 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:29,113 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:29,245 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:29,454 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:22:29,573 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:29,707 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:29,836 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:29,953 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:30,079 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:30,306 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:30,417 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:30,546 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:30,763 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:30,879 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:31,006 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:31,120 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:31,231 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:31,364 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:31,498 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:31,616 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:31,750 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:31,977 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:22:32,091 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:32,224 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:32,434 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:22:32,547 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:32,671 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:32,879 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:32,991 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:33,118 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:33,329 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:22:33,442 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:33,577 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:33,814 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:33,930 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,062 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,272 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:34,383 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,513 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,624 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,738 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,864 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,084 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:35,200 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,323 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,537 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:35,649 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,780 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,891 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:36,017 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:36,156 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:36,382 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:36,499 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:36,636 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:36,764 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:36,879 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:37,008 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:37,209 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:37,324 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:37,449 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:37,653 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-07 15:22:37,772 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:37,909 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:38,106 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-07 15:22:38,234 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:38,365 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:38,578 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:38,694 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,832 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,209 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:39,326 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,455 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,673 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:39,788 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,915 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:40,176 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:40,296 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:40,425 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:40,542 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:40,661 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:40,785 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:41,034 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:41,162 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:41,313 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:41,432 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:41,551 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:41,683 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:41,907 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:42,029 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:42,155 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:42,627 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:42,798 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:42,929 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,045 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,159 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,282 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,420 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:43,538 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:43,669 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:43,789 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:43,907 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:44,037 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:44,151 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:44,274 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:44,403 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:44,610 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:44,729 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:44,860 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:45,075 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:45,192 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:45,320 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:45,537 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:45,651 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:45,782 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:45,896 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:46,013 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:46,136 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:46,267 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:46,382 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:46,514 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:46,634 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:46,753 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:46,885 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:47,005 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:47,124 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:47,254 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:47,453 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:47,570 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:47,697 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:47,909 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:22:48,031 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:48,161 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:48,383 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:22:48,500 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:48,628 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:48,834 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:22:48,950 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:49,078 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:49,081 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-10-07 15:22:49,184 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:49,416 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:49,549 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:49,771 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:49,953 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 548 [2019-10-07 15:22:50,057 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:50,188 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:50,395 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:50,523 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:50,529 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-10-07 15:22:50,632 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:22:50,739 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:22:50,866 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:50,993 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:22:51,096 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:22:51,224 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:51,336 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:22:51,442 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:22:51,572 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:51,681 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:22:51,790 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:22:51,925 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:52,049 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 15:22:52,154 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 15:22:52,286 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 577 [2019-10-07 15:22:52,443 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:52,736 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:53,159 WARN L191 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 581 [2019-10-07 15:22:53,378 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 585 DAG size of output: 565 [2019-10-07 15:22:53,681 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:54,079 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:22:54,211 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:54,503 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:54,857 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:22:54,967 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:55,249 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:55,612 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:22:55,719 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:56,003 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:56,364 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:22:56,470 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:56,757 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:57,103 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:22:57,214 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:57,495 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:57,956 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:22:58,099 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:58,374 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:58,723 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:22:58,833 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:59,110 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:59,466 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:22:59,581 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:59,868 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:00,223 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:23:00,328 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:00,616 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:00,963 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:23:01,077 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:01,358 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:01,707 WARN L191 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:23:01,819 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:02,098 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:02,460 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:23:02,568 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:02,851 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:03,225 WARN L191 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:23:03,335 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:03,608 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:03,966 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:23:04,074 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:04,357 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:23:04,723 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:23:05,100 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:05,523 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:05,943 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:06,372 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:06,790 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:07,227 WARN L191 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:07,646 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:08,060 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:08,482 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:08,889 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:09,314 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:09,720 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:10,154 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:10,561 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:10,968 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:23:11,524 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:23:11,525 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.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 15:23:11,532 INFO L168 Benchmark]: Toolchain (without parser) took 75111.83 ms. Allocated memory was 146.8 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 103.9 MB in the beginning and 757.9 MB in the end (delta: -654.0 MB). Peak memory consumption was 367.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:11,532 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 15:23:11,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.05 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 103.7 MB in the beginning and 173.3 MB in the end (delta: -69.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:11,533 INFO L168 Benchmark]: Boogie Preprocessor took 87.09 ms. Allocated memory is still 205.5 MB. Free memory was 173.3 MB in the beginning and 169.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:11,533 INFO L168 Benchmark]: RCFGBuilder took 1791.68 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 169.2 MB in the beginning and 141.4 MB in the end (delta: 27.8 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:11,534 INFO L168 Benchmark]: TraceAbstraction took 72548.72 ms. Allocated memory was 233.8 MB in the beginning and 1.2 GB in the end (delta: 934.3 MB). Free memory was 141.4 MB in the beginning and 757.9 MB in the end (delta: -616.5 MB). Peak memory consumption was 317.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:11,535 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 146.8 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.05 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 103.7 MB in the beginning and 173.3 MB in the end (delta: -69.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.09 ms. Allocated memory is still 205.5 MB. Free memory was 173.3 MB in the beginning and 169.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1791.68 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 169.2 MB in the beginning and 141.4 MB in the end (delta: 27.8 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 72548.72 ms. Allocated memory was 233.8 MB in the beginning and 1.2 GB in the end (delta: 934.3 MB). Free memory was 141.4 MB in the beginning and 757.9 MB in the end (delta: -616.5 MB). Peak memory consumption was 317.8 MB. 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...