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_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:22:04,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:22:04,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:22:04,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:22:04,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:22:04,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:22:04,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:22:04,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:22:04,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:22:04,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:22:04,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:22:04,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:22:04,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:22:04,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:22:04,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:22:04,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:22:04,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:22:04,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:22:04,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:22:04,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:22:04,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:22:04,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:22:04,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:22:04,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:22:04,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:22:04,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:22:04,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:22:04,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:22:04,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:22:04,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:22:04,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:22:04,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:22:04,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:22:04,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:22:04,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:22:04,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:22:04,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:22:04,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:22:04,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:22:04,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:22:04,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:22:04,185 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 15:22:04,198 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:22:04,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:22:04,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:22:04,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:22:04,200 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:22:04,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:22:04,200 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:22:04,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:22:04,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:22:04,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:22:04,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:22:04,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:22:04,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:22:04,201 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:22:04,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:22:04,202 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:22:04,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:22:04,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:22:04,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:22:04,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:22:04,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:22:04,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:22:04,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:22:04,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:22:04,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:22:04,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:22:04,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:22:04,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:22:04,204 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 15:22:04,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:22:04,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:22:04,499 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:22:04,501 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:22:04,501 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:22:04,502 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product53.cil.c [2019-10-07 15:22:04,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3147c5789/99e04d5c36dc41c5b64764f9b28cafa5/FLAGd6d172e0a [2019-10-07 15:22:05,005 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:22:05,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product53.cil.c [2019-10-07 15:22:05,022 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3147c5789/99e04d5c36dc41c5b64764f9b28cafa5/FLAGd6d172e0a [2019-10-07 15:22:05,329 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3147c5789/99e04d5c36dc41c5b64764f9b28cafa5 [2019-10-07 15:22:05,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:22:05,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:22:05,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:22:05,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:22:05,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:22:05,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:22:05" (1/1) ... [2019-10-07 15:22:05,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9515a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:05, skipping insertion in model container [2019-10-07 15:22:05,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:22:05" (1/1) ... [2019-10-07 15:22:05,355 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:22:05,420 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:22:05,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:22:05,889 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:22:06,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:22:06,044 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:22:06,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:06 WrapperNode [2019-10-07 15:22:06,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:22:06,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:22:06,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:22:06,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:22:06,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:06" (1/1) ... [2019-10-07 15:22:06,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:06" (1/1) ... [2019-10-07 15:22:06,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:06" (1/1) ... [2019-10-07 15:22:06,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:06" (1/1) ... [2019-10-07 15:22:06,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:06" (1/1) ... [2019-10-07 15:22:06,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:06" (1/1) ... [2019-10-07 15:22:06,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:06" (1/1) ... [2019-10-07 15:22:06,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:22:06,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:22:06,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:22:06,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:22:06,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:06" (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 15:22:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:22:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:22:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:22:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:22:06,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:22:06,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:22:06,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:22:06,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:22:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:22:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:22:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:22:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:22:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-07 15:22:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:22:06,230 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:22:06,230 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:22:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:22:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:22:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:22:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:22:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:22:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:22:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:22:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:22:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:22:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:22:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:22:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:22:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:22:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:22:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:22:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:22:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:22:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:22:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:22:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:22:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:22:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:22:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:22:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:22:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:22:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:22:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:22:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:22:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:22:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:22:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:22:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:22:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:22:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:22:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:22:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:22:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:22:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:22:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:22:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:22:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:22:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:22:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:22:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:22:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:22:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:22:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:22:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:22:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:22:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:22:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:22:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:22:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:22:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:22:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:22:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:22:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:22:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:22:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:22:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:22:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:22:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:22:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:22:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:22:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-07 15:22:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:22:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:22:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:22:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:22:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:22:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:22:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:22:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:22:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:22:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:22:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:22:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:22:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:22:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:22:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:22:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:22:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:22:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:22:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:22:07,748 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:22:07,748 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:22:07,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:22:07 BoogieIcfgContainer [2019-10-07 15:22:07,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:22:07,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:22:07,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:22:07,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:22:07,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:22:05" (1/3) ... [2019-10-07 15:22:07,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a07147d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:22:07, skipping insertion in model container [2019-10-07 15:22:07,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:06" (2/3) ... [2019-10-07 15:22:07,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a07147d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:22:07, skipping insertion in model container [2019-10-07 15:22:07,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:22:07" (3/3) ... [2019-10-07 15:22:07,758 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2019-10-07 15:22:07,767 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:22:07,776 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:22:07,787 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:22:07,818 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:22:07,818 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:22:07,818 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:22:07,819 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:22:07,819 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:22:07,819 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:22:07,819 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:22:07,819 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:22:07,842 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2019-10-07 15:22:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 15:22:07,852 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:07,853 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 15:22:07,855 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:07,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:07,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1858823632, now seen corresponding path program 1 times [2019-10-07 15:22:07,870 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:07,871 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:07,871 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:07,871 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:07,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:08,228 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 15:22:08,229 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:08,230 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:08,230 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:22:08,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:22:08,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:22:08,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:22:08,261 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2019-10-07 15:22:08,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:08,301 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2019-10-07 15:22:08,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:22:08,303 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-07 15:22:08,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:08,316 INFO L225 Difference]: With dead ends: 256 [2019-10-07 15:22:08,316 INFO L226 Difference]: Without dead ends: 130 [2019-10-07 15:22:08,321 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 15:22:08,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-07 15:22:08,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2019-10-07 15:22:08,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-10-07 15:22:08,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 150 transitions. [2019-10-07 15:22:08,382 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 150 transitions. Word has length 52 [2019-10-07 15:22:08,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:08,383 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 150 transitions. [2019-10-07 15:22:08,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:22:08,383 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 150 transitions. [2019-10-07 15:22:08,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 15:22:08,387 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:08,387 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 15:22:08,388 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:08,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:08,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1915705651, now seen corresponding path program 1 times [2019-10-07 15:22:08,389 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:08,389 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:08,389 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:08,389 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:08,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:08,558 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 15:22:08,559 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:08,560 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:08,587 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:22:08,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:22:08,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:22:08,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:22:08,598 INFO L87 Difference]: Start difference. First operand 130 states and 150 transitions. Second operand 3 states. [2019-10-07 15:22:08,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:08,649 INFO L93 Difference]: Finished difference Result 214 states and 248 transitions. [2019-10-07 15:22:08,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:22:08,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-07 15:22:08,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:08,655 INFO L225 Difference]: With dead ends: 214 [2019-10-07 15:22:08,656 INFO L226 Difference]: Without dead ends: 122 [2019-10-07 15:22:08,658 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 15:22:08,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-07 15:22:08,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-07 15:22:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-07 15:22:08,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 139 transitions. [2019-10-07 15:22:08,684 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 139 transitions. Word has length 53 [2019-10-07 15:22:08,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:08,684 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 139 transitions. [2019-10-07 15:22:08,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:22:08,685 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 139 transitions. [2019-10-07 15:22:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-07 15:22:08,693 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:08,695 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] [2019-10-07 15:22:08,695 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:08,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:08,696 INFO L82 PathProgramCache]: Analyzing trace with hash 197549147, now seen corresponding path program 1 times [2019-10-07 15:22:08,696 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:08,696 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:08,696 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:08,696 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:08,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:08,837 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 15:22:08,838 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:08,838 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:08,838 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:22:08,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:22:08,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:22:08,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:22:08,840 INFO L87 Difference]: Start difference. First operand 122 states and 139 transitions. Second operand 7 states. [2019-10-07 15:22:09,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:09,218 INFO L93 Difference]: Finished difference Result 219 states and 254 transitions. [2019-10-07 15:22:09,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:22:09,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-10-07 15:22:09,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:09,223 INFO L225 Difference]: With dead ends: 219 [2019-10-07 15:22:09,224 INFO L226 Difference]: Without dead ends: 122 [2019-10-07 15:22:09,226 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 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 15:22:09,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-07 15:22:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-07 15:22:09,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-07 15:22:09,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 138 transitions. [2019-10-07 15:22:09,251 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 138 transitions. Word has length 55 [2019-10-07 15:22:09,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:09,254 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 138 transitions. [2019-10-07 15:22:09,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:22:09,254 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 138 transitions. [2019-10-07 15:22:09,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-07 15:22:09,257 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:09,257 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] [2019-10-07 15:22:09,257 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:09,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:09,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1962341455, now seen corresponding path program 1 times [2019-10-07 15:22:09,258 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:09,258 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:09,258 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:09,258 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:09,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:09,392 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 15:22:09,393 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:09,393 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:09,393 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:22:09,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:22:09,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:22:09,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:22:09,395 INFO L87 Difference]: Start difference. First operand 122 states and 138 transitions. Second operand 5 states. [2019-10-07 15:22:09,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:09,919 INFO L93 Difference]: Finished difference Result 315 states and 373 transitions. [2019-10-07 15:22:09,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:22:09,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-10-07 15:22:09,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:09,922 INFO L225 Difference]: With dead ends: 315 [2019-10-07 15:22:09,922 INFO L226 Difference]: Without dead ends: 218 [2019-10-07 15:22:09,923 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:22:09,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-10-07 15:22:09,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 203. [2019-10-07 15:22:09,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-10-07 15:22:09,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 225 transitions. [2019-10-07 15:22:09,947 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 225 transitions. Word has length 72 [2019-10-07 15:22:09,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:09,948 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 225 transitions. [2019-10-07 15:22:09,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:22:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 225 transitions. [2019-10-07 15:22:09,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-07 15:22:09,949 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:09,949 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, 1] [2019-10-07 15:22:09,949 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:09,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:09,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1605617855, now seen corresponding path program 1 times [2019-10-07 15:22:09,950 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:09,950 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:09,950 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:09,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:09,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:10,197 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 15:22:10,197 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:10,197 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:10,198 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:22:10,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:22:10,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:22:10,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:22:10,199 INFO L87 Difference]: Start difference. First operand 203 states and 225 transitions. Second operand 12 states. [2019-10-07 15:22:11,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:11,149 INFO L93 Difference]: Finished difference Result 533 states and 607 transitions. [2019-10-07 15:22:11,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:22:11,150 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2019-10-07 15:22:11,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:11,156 INFO L225 Difference]: With dead ends: 533 [2019-10-07 15:22:11,156 INFO L226 Difference]: Without dead ends: 355 [2019-10-07 15:22:11,159 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 15:22:11,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-07 15:22:11,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 343. [2019-10-07 15:22:11,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-07 15:22:11,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 389 transitions. [2019-10-07 15:22:11,230 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 389 transitions. Word has length 82 [2019-10-07 15:22:11,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:11,230 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 389 transitions. [2019-10-07 15:22:11,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:22:11,231 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 389 transitions. [2019-10-07 15:22:11,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-07 15:22:11,234 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:11,234 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, 1] [2019-10-07 15:22:11,235 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:11,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:11,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1607212558, now seen corresponding path program 1 times [2019-10-07 15:22:11,235 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:11,236 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:11,236 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:11,236 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:11,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:11,368 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 15:22:11,368 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:11,369 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:11,369 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:22:11,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:22:11,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:22:11,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:22:11,370 INFO L87 Difference]: Start difference. First operand 343 states and 389 transitions. Second operand 7 states. [2019-10-07 15:22:11,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:11,995 INFO L93 Difference]: Finished difference Result 685 states and 799 transitions. [2019-10-07 15:22:11,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:22:11,996 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2019-10-07 15:22:11,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:11,999 INFO L225 Difference]: With dead ends: 685 [2019-10-07 15:22:11,999 INFO L226 Difference]: Without dead ends: 367 [2019-10-07 15:22:12,000 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:22:12,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2019-10-07 15:22:12,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 340. [2019-10-07 15:22:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-10-07 15:22:12,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 380 transitions. [2019-10-07 15:22:12,026 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 380 transitions. Word has length 82 [2019-10-07 15:22:12,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:12,026 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 380 transitions. [2019-10-07 15:22:12,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:22:12,027 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 380 transitions. [2019-10-07 15:22:12,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-07 15:22:12,028 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:12,028 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, 1, 1, 1, 1] [2019-10-07 15:22:12,028 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:12,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:12,029 INFO L82 PathProgramCache]: Analyzing trace with hash -291312043, now seen corresponding path program 1 times [2019-10-07 15:22:12,029 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:12,029 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:12,029 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:12,029 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:12,167 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 15:22:12,167 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:12,168 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:12,168 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 15:22:12,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 15:22:12,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 15:22:12,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:22:12,169 INFO L87 Difference]: Start difference. First operand 340 states and 380 transitions. Second operand 9 states. [2019-10-07 15:22:13,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:13,096 INFO L93 Difference]: Finished difference Result 1035 states and 1187 transitions. [2019-10-07 15:22:13,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:22:13,098 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2019-10-07 15:22:13,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:13,103 INFO L225 Difference]: With dead ends: 1035 [2019-10-07 15:22:13,103 INFO L226 Difference]: Without dead ends: 782 [2019-10-07 15:22:13,105 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 15:22:13,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-10-07 15:22:13,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 680. [2019-10-07 15:22:13,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2019-10-07 15:22:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 767 transitions. [2019-10-07 15:22:13,148 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 767 transitions. Word has length 85 [2019-10-07 15:22:13,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:13,149 INFO L462 AbstractCegarLoop]: Abstraction has 680 states and 767 transitions. [2019-10-07 15:22:13,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 15:22:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 767 transitions. [2019-10-07 15:22:13,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 15:22:13,151 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:13,151 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:22:13,151 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:13,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:13,152 INFO L82 PathProgramCache]: Analyzing trace with hash -785132374, now seen corresponding path program 1 times [2019-10-07 15:22:13,152 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:13,152 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:13,152 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:13,153 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:13,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 15:22:13,279 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:13,279 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:22:13,279 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 15:22:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:13,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 15:22:13,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:22:13,686 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:22:13,687 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:22:14,112 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 15:22:14,112 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:22:14,140 INFO L162 IcfgInterpreter]: Started Sifa with 114 locations of interest [2019-10-07 15:22:14,140 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:22:14,147 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:22:14,154 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:22:14,155 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:22:23,441 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:22:25,043 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:22:25,170 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:25,307 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:25,436 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:25,708 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:25,909 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:26,085 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:26,304 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:26,611 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:22:26,780 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:26,915 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:27,023 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:27,138 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:27,281 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:27,291 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:22:27,526 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-07 15:22:27,631 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:27,766 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:27,905 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:28,119 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:28,273 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:28,391 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:28,617 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:28,899 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-07 15:22:29,009 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:29,163 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:29,274 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:29,518 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:29,720 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:29,836 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:30,046 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:30,233 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:30,339 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:30,555 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:30,780 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:30,897 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:31,214 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:31,421 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:31,539 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:31,850 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:32,054 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:32,202 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:32,345 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:32,455 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:32,575 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:32,775 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:32,885 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:33,017 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:33,126 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:33,234 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:33,351 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:33,512 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:33,625 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:33,747 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:33,987 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:34,098 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,228 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,428 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:34,538 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:34,660 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,771 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:34,881 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:35,008 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,118 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,230 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,373 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:35,511 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,638 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,760 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:36,059 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:22:36,169 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:36,295 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:36,404 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:36,514 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:36,636 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:36,857 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:36,965 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,093 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,289 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:37,397 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,537 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,645 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,753 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:37,878 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:38,087 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:38,199 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,322 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,537 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:38,647 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,776 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,886 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,996 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,125 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,333 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:39,450 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:39,574 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,760 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:22:39,870 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:39,997 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:40,210 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:40,321 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:40,442 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:40,637 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:40,745 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:40,865 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:40,973 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:41,083 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:41,202 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:41,416 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:41,525 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:41,645 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:41,839 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:41,947 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:42,067 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:42,175 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:42,286 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:42,405 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:42,622 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:42,732 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:42,854 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,054 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:43,179 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,308 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,419 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,531 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,651 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:43,924 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:44,033 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:44,155 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:44,352 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:22:44,463 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:44,588 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:44,793 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:44,907 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,026 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,226 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:45,343 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,463 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,667 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:45,777 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:45,896 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:46,150 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:46,258 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:46,382 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:46,490 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:46,599 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:46,715 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:46,925 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:47,036 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:47,158 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:47,353 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:47,463 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:47,587 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:48,039 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:48,244 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:48,368 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:48,564 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:48,674 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:48,796 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:48,904 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:49,013 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:49,130 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:49,344 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:49,456 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:49,577 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:49,691 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:49,807 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:49,929 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:50,120 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:50,230 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:50,348 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:50,542 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:50,652 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:50,779 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:50,981 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:51,089 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:51,205 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:51,397 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:22:51,503 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:51,621 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:51,728 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:51,842 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:51,957 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:52,151 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:52,259 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:52,380 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:52,573 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:22:52,681 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:52,804 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:52,914 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:53,023 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:22:53,140 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:53,327 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-07 15:22:53,471 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:53,591 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:53,787 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:22:53,904 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:54,027 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:54,236 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:22:54,347 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:54,474 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:54,672 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:22:54,782 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:54,908 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:54,912 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-10-07 15:22:55,013 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:55,226 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:55,555 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:55,725 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 548 [2019-10-07 15:22:55,827 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:55,951 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:56,056 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:22:56,270 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:56,275 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 548 for LOIs [2019-10-07 15:22:56,587 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:22:56,913 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:57,123 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:22:57,244 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:57,568 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:22:57,678 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:22:57,780 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:22:57,905 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:22:58,045 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:22:58,327 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:22:58,767 WARN L191 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 579 [2019-10-07 15:22:58,987 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 563 [2019-10-07 15:22:59,404 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:22:59,725 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:22:59,839 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:00,110 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:00,406 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:00,510 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:00,782 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:01,078 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:01,183 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:01,456 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:01,749 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:01,857 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:02,124 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:02,419 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:02,525 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:02,793 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:03,110 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:03,216 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:03,484 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:03,777 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:03,882 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:04,153 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:04,446 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:04,551 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:04,824 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:05,118 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:05,224 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:05,493 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:05,785 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:05,890 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:06,157 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:06,456 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:06,560 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:06,829 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:07,120 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:07,489 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:07,907 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:08,312 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:08,728 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:09,137 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:09,541 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:09,962 WARN L191 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:10,373 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:10,776 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:11,184 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:11,593 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:12,005 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:12,425 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:23:12,426 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 15:23:12,433 INFO L168 Benchmark]: Toolchain (without parser) took 67093.48 ms. Allocated memory was 145.8 MB in the beginning and 1.1 GB in the end (delta: 934.3 MB). Free memory was 103.3 MB in the beginning and 932.2 MB in the end (delta: -828.9 MB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:12,433 INFO L168 Benchmark]: CDTParser took 1.18 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 15:23:12,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.04 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 103.0 MB in the beginning and 167.3 MB in the end (delta: -64.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:12,434 INFO L168 Benchmark]: Boogie Preprocessor took 99.18 ms. Allocated memory is still 203.4 MB. Free memory was 167.3 MB in the beginning and 163.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:12,434 INFO L168 Benchmark]: RCFGBuilder took 1602.08 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 163.2 MB in the beginning and 135.0 MB in the end (delta: 28.2 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:12,434 INFO L168 Benchmark]: TraceAbstraction took 64680.30 ms. Allocated memory was 234.4 MB in the beginning and 1.1 GB in the end (delta: 845.7 MB). Free memory was 133.6 MB in the beginning and 932.2 MB in the end (delta: -798.5 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:12,436 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.04 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 103.0 MB in the beginning and 167.3 MB in the end (delta: -64.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.18 ms. Allocated memory is still 203.4 MB. Free memory was 167.3 MB in the beginning and 163.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1602.08 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 163.2 MB in the beginning and 135.0 MB in the end (delta: 28.2 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 64680.30 ms. Allocated memory was 234.4 MB in the beginning and 1.1 GB in the end (delta: 845.7 MB). Free memory was 133.6 MB in the beginning and 932.2 MB in the end (delta: -798.5 MB). Peak memory consumption was 47.2 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...