/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:07:56,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:07:56,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:07:56,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:07:56,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:07:56,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:07:56,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:07:56,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:07:56,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:07:56,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:07:56,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:07:56,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:07:56,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:07:56,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:07:56,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:07:56,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:07:56,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:07:56,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:07:56,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:07:56,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:07:56,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:07:56,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:07:56,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:07:56,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:07:56,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:07:56,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:07:56,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:07:56,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:07:56,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:07:56,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:07:56,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:07:56,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:07:56,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:07:56,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:07:56,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:07:56,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:07:56,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:07:56,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:07:56,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:07:56,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:07:56,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:07:56,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:07:56,243 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:07:56,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:07:56,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:07:56,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:07:56,245 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:07:56,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:07:56,246 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:07:56,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:07:56,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:07:56,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:07:56,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:07:56,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:07:56,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:07:56,247 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:07:56,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:07:56,248 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:07:56,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:07:56,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:07:56,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:07:56,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:07:56,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:07:56,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:07:56,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:07:56,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:07:56,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:07:56,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:07:56,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:07:56,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:07:56,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:07:56,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:07:56,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:07:56,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:07:56,550 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:07:56,550 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:07:56,551 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2019-11-06 22:07:56,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffcce6d2b/37db132179ca447a81a4343f0537abfd/FLAGa47891dc5 [2019-11-06 22:07:57,170 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:07:57,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2019-11-06 22:07:57,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffcce6d2b/37db132179ca447a81a4343f0537abfd/FLAGa47891dc5 [2019-11-06 22:07:57,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffcce6d2b/37db132179ca447a81a4343f0537abfd [2019-11-06 22:07:57,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:07:57,485 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:07:57,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:07:57,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:07:57,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:07:57,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:07:57" (1/1) ... [2019-11-06 22:07:57,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3afb881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:57, skipping insertion in model container [2019-11-06 22:07:57,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:07:57" (1/1) ... [2019-11-06 22:07:57,502 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:07:57,568 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:07:57,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:07:58,010 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:07:58,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:07:58,139 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:07:58,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:58 WrapperNode [2019-11-06 22:07:58,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:07:58,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:07:58,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:07:58,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:07:58,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:58" (1/1) ... [2019-11-06 22:07:58,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:58" (1/1) ... [2019-11-06 22:07:58,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:58" (1/1) ... [2019-11-06 22:07:58,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:58" (1/1) ... [2019-11-06 22:07:58,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:58" (1/1) ... [2019-11-06 22:07:58,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:58" (1/1) ... [2019-11-06 22:07:58,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:58" (1/1) ... [2019-11-06 22:07:58,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:07:58,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:07:58,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:07:58,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:07:58,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:07:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:07:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:07:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:07:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:07:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:07:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:07:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:07:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:07:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:07:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:07:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:07:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:07:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:07:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-06 22:07:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:07:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:07:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:07:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:07:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:07:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:07:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:07:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 22:07:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:07:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-11-06 22:07:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:07:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:07:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:07:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:07:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:07:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:07:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:07:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-06 22:07:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-06 22:07:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:07:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:07:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:07:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:07:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:07:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:07:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:07:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:07:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:07:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:07:58,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:07:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:07:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:07:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:07:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:07:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:07:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:07:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:07:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:07:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:07:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:07:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:07:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:07:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:07:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:07:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:07:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-06 22:07:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:07:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:07:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:07:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:07:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:07:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:07:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:07:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:07:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:07:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:07:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:07:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:07:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:07:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:07:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-06 22:07:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:07:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 22:07:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:07:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:07:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-06 22:07:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-11-06 22:07:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:07:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:07:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:07:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:07:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:07:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:07:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:07:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:07:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:07:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:07:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:07:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:07:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:07:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:07:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:07:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:07:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:07:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:07:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:07:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:07:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:07:59,542 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:07:59,543 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:07:59,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:59 BoogieIcfgContainer [2019-11-06 22:07:59,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:07:59,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:07:59,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:07:59,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:07:59,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:07:57" (1/3) ... [2019-11-06 22:07:59,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6559586a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:07:59, skipping insertion in model container [2019-11-06 22:07:59,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:58" (2/3) ... [2019-11-06 22:07:59,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6559586a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:07:59, skipping insertion in model container [2019-11-06 22:07:59,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:59" (3/3) ... [2019-11-06 22:07:59,553 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2019-11-06 22:07:59,564 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:07:59,572 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:07:59,584 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:07:59,612 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:07:59,612 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:07:59,612 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:07:59,612 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:07:59,613 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:07:59,613 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:07:59,613 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:07:59,613 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:07:59,637 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states. [2019-11-06 22:07:59,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-06 22:07:59,648 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:59,649 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:07:59,651 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:59,657 INFO L82 PathProgramCache]: Analyzing trace with hash -404445524, now seen corresponding path program 1 times [2019-11-06 22:07:59,667 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:59,667 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950065105] [2019-11-06 22:07:59,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,316 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:00,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:00,439 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950065105] [2019-11-06 22:08:00,441 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:00,441 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:08:00,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335283683] [2019-11-06 22:08:00,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:08:00,447 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:00,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:08:00,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:08:00,464 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 4 states. [2019-11-06 22:08:01,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:01,746 INFO L93 Difference]: Finished difference Result 351 states and 448 transitions. [2019-11-06 22:08:01,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:08:01,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-11-06 22:08:01,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:01,763 INFO L225 Difference]: With dead ends: 351 [2019-11-06 22:08:01,763 INFO L226 Difference]: Without dead ends: 192 [2019-11-06 22:08:01,768 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:08:01,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2019-11-06 22:08:01,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 160. [2019-11-06 22:08:01,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-06 22:08:01,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 188 transitions. [2019-11-06 22:08:01,863 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 188 transitions. Word has length 59 [2019-11-06 22:08:01,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:01,863 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 188 transitions. [2019-11-06 22:08:01,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:08:01,864 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 188 transitions. [2019-11-06 22:08:01,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-06 22:08:01,868 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:01,868 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:08:01,868 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:01,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:01,869 INFO L82 PathProgramCache]: Analyzing trace with hash -315023676, now seen corresponding path program 1 times [2019-11-06 22:08:01,869 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:01,869 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306817789] [2019-11-06 22:08:01,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,222 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:02,284 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306817789] [2019-11-06 22:08:02,284 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:02,284 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:08:02,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936354634] [2019-11-06 22:08:02,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:08:02,286 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:02,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:08:02,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:08:02,287 INFO L87 Difference]: Start difference. First operand 160 states and 188 transitions. Second operand 5 states. [2019-11-06 22:08:02,791 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:03,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:03,900 INFO L93 Difference]: Finished difference Result 292 states and 356 transitions. [2019-11-06 22:08:03,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:08:03,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-11-06 22:08:03,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:03,908 INFO L225 Difference]: With dead ends: 292 [2019-11-06 22:08:03,909 INFO L226 Difference]: Without dead ends: 182 [2019-11-06 22:08:03,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:08:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-11-06 22:08:03,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 151. [2019-11-06 22:08:03,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-06 22:08:03,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 176 transitions. [2019-11-06 22:08:03,947 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 176 transitions. Word has length 60 [2019-11-06 22:08:03,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:03,947 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 176 transitions. [2019-11-06 22:08:03,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:08:03,948 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 176 transitions. [2019-11-06 22:08:03,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-06 22:08:03,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:03,950 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:08:03,951 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:03,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:03,951 INFO L82 PathProgramCache]: Analyzing trace with hash 649722396, now seen corresponding path program 1 times [2019-11-06 22:08:03,951 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:03,952 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529367126] [2019-11-06 22:08:03,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,325 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:04,440 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529367126] [2019-11-06 22:08:04,440 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:04,441 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:04,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867763614] [2019-11-06 22:08:04,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:04,441 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:04,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:04,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:04,442 INFO L87 Difference]: Start difference. First operand 151 states and 176 transitions. Second operand 9 states. [2019-11-06 22:08:04,924 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:05,277 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:05,548 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:05,823 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:07,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:07,453 INFO L93 Difference]: Finished difference Result 305 states and 375 transitions. [2019-11-06 22:08:07,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:08:07,455 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-11-06 22:08:07,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:07,460 INFO L225 Difference]: With dead ends: 305 [2019-11-06 22:08:07,460 INFO L226 Difference]: Without dead ends: 182 [2019-11-06 22:08:07,462 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:08:07,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-11-06 22:08:07,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 151. [2019-11-06 22:08:07,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-06 22:08:07,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 175 transitions. [2019-11-06 22:08:07,504 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 175 transitions. Word has length 65 [2019-11-06 22:08:07,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:07,504 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 175 transitions. [2019-11-06 22:08:07,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:08:07,504 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 175 transitions. [2019-11-06 22:08:07,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-06 22:08:07,508 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:07,508 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:08:07,508 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:07,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:07,509 INFO L82 PathProgramCache]: Analyzing trace with hash 2071838844, now seen corresponding path program 1 times [2019-11-06 22:08:07,509 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:07,509 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355198759] [2019-11-06 22:08:07,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,813 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:07,924 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355198759] [2019-11-06 22:08:07,924 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:07,924 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:08:07,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299679424] [2019-11-06 22:08:07,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:08:07,926 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:07,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:08:07,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:08:07,926 INFO L87 Difference]: Start difference. First operand 151 states and 175 transitions. Second operand 7 states. [2019-11-06 22:08:08,313 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:09,742 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:10,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:10,426 INFO L93 Difference]: Finished difference Result 415 states and 516 transitions. [2019-11-06 22:08:10,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:08:10,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-11-06 22:08:10,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:10,430 INFO L225 Difference]: With dead ends: 415 [2019-11-06 22:08:10,431 INFO L226 Difference]: Without dead ends: 292 [2019-11-06 22:08:10,432 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-11-06 22:08:10,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2019-11-06 22:08:10,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 246. [2019-11-06 22:08:10,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-11-06 22:08:10,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 280 transitions. [2019-11-06 22:08:10,486 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 280 transitions. Word has length 83 [2019-11-06 22:08:10,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:10,487 INFO L462 AbstractCegarLoop]: Abstraction has 246 states and 280 transitions. [2019-11-06 22:08:10,487 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:08:10,487 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 280 transitions. [2019-11-06 22:08:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-11-06 22:08:10,490 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:10,490 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:08:10,491 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:10,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:10,491 INFO L82 PathProgramCache]: Analyzing trace with hash 477615551, now seen corresponding path program 1 times [2019-11-06 22:08:10,491 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:10,492 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618640206] [2019-11-06 22:08:10,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,803 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:08:10,927 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618640206] [2019-11-06 22:08:10,927 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:10,927 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:10,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734646707] [2019-11-06 22:08:10,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:10,928 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:10,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:10,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:10,929 INFO L87 Difference]: Start difference. First operand 246 states and 280 transitions. Second operand 9 states. [2019-11-06 22:08:11,359 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:12,141 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:12,957 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:13,280 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:13,777 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:14,029 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:14,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:14,770 INFO L93 Difference]: Finished difference Result 509 states and 612 transitions. [2019-11-06 22:08:14,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:08:14,771 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2019-11-06 22:08:14,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:14,775 INFO L225 Difference]: With dead ends: 509 [2019-11-06 22:08:14,775 INFO L226 Difference]: Without dead ends: 291 [2019-11-06 22:08:14,776 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-11-06 22:08:14,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-11-06 22:08:14,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 245. [2019-11-06 22:08:14,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-11-06 22:08:14,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 277 transitions. [2019-11-06 22:08:14,825 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 277 transitions. Word has length 97 [2019-11-06 22:08:14,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:14,826 INFO L462 AbstractCegarLoop]: Abstraction has 245 states and 277 transitions. [2019-11-06 22:08:14,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:08:14,826 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 277 transitions. [2019-11-06 22:08:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-06 22:08:14,828 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:14,828 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:08:14,828 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:14,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:14,829 INFO L82 PathProgramCache]: Analyzing trace with hash 115684108, now seen corresponding path program 1 times [2019-11-06 22:08:14,829 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:14,829 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947109882] [2019-11-06 22:08:14,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,099 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:15,269 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947109882] [2019-11-06 22:08:15,269 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:15,270 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:15,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792714004] [2019-11-06 22:08:15,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:15,271 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:15,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:15,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:15,271 INFO L87 Difference]: Start difference. First operand 245 states and 277 transitions. Second operand 9 states. [2019-11-06 22:08:16,697 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:16,967 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 22:08:17,230 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:17,495 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:18,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:18,449 INFO L93 Difference]: Finished difference Result 507 states and 607 transitions. [2019-11-06 22:08:18,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:08:18,450 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2019-11-06 22:08:18,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:18,452 INFO L225 Difference]: With dead ends: 507 [2019-11-06 22:08:18,452 INFO L226 Difference]: Without dead ends: 290 [2019-11-06 22:08:18,453 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:08:18,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2019-11-06 22:08:18,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 250. [2019-11-06 22:08:18,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2019-11-06 22:08:18,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 282 transitions. [2019-11-06 22:08:18,496 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 282 transitions. Word has length 98 [2019-11-06 22:08:18,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:18,497 INFO L462 AbstractCegarLoop]: Abstraction has 250 states and 282 transitions. [2019-11-06 22:08:18,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:08:18,497 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 282 transitions. [2019-11-06 22:08:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-06 22:08:18,498 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:18,498 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:08:18,499 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:18,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:18,499 INFO L82 PathProgramCache]: Analyzing trace with hash 43297550, now seen corresponding path program 1 times [2019-11-06 22:08:18,499 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:18,500 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695280889] [2019-11-06 22:08:18,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,782 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:18,900 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:18,900 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695280889] [2019-11-06 22:08:18,901 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:18,901 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 22:08:18,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454628389] [2019-11-06 22:08:18,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:08:18,902 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:18,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 22:08:18,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:08:18,903 INFO L87 Difference]: Start difference. First operand 250 states and 282 transitions. Second operand 11 states. [2019-11-06 22:08:19,457 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:19,767 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:20,017 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:20,856 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:21,144 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:21,418 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:22,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:22,599 INFO L93 Difference]: Finished difference Result 519 states and 628 transitions. [2019-11-06 22:08:22,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 22:08:22,600 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2019-11-06 22:08:22,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:22,604 INFO L225 Difference]: With dead ends: 519 [2019-11-06 22:08:22,604 INFO L226 Difference]: Without dead ends: 297 [2019-11-06 22:08:22,605 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-11-06 22:08:22,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2019-11-06 22:08:22,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 254. [2019-11-06 22:08:22,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-11-06 22:08:22,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 286 transitions. [2019-11-06 22:08:22,650 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 286 transitions. Word has length 98 [2019-11-06 22:08:22,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:22,650 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 286 transitions. [2019-11-06 22:08:22,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 22:08:22,650 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 286 transitions. [2019-11-06 22:08:22,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-06 22:08:22,652 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:22,652 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:08:22,652 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:22,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:22,653 INFO L82 PathProgramCache]: Analyzing trace with hash 373063311, now seen corresponding path program 1 times [2019-11-06 22:08:22,653 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:22,653 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531583720] [2019-11-06 22:08:22,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:22,950 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:23,123 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531583720] [2019-11-06 22:08:23,124 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:23,124 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:08:23,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444518910] [2019-11-06 22:08:23,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:08:23,125 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:23,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:08:23,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:08:23,125 INFO L87 Difference]: Start difference. First operand 254 states and 286 transitions. Second operand 7 states. [2019-11-06 22:08:23,492 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:24,073 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:26,161 INFO L93 Difference]: Finished difference Result 711 states and 879 transitions. [2019-11-06 22:08:26,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:08:26,163 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2019-11-06 22:08:26,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:26,168 INFO L225 Difference]: With dead ends: 711 [2019-11-06 22:08:26,168 INFO L226 Difference]: Without dead ends: 485 [2019-11-06 22:08:26,169 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-11-06 22:08:26,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-11-06 22:08:26,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 443. [2019-11-06 22:08:26,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-11-06 22:08:26,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 514 transitions. [2019-11-06 22:08:26,241 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 514 transitions. Word has length 98 [2019-11-06 22:08:26,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:26,242 INFO L462 AbstractCegarLoop]: Abstraction has 443 states and 514 transitions. [2019-11-06 22:08:26,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:08:26,242 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 514 transitions. [2019-11-06 22:08:26,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-06 22:08:26,244 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:26,244 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2019-11-06 22:08:26,244 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:26,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:26,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1661296137, now seen corresponding path program 1 times [2019-11-06 22:08:26,245 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:26,245 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745778928] [2019-11-06 22:08:26,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,629 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:26,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:26,808 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745778928] [2019-11-06 22:08:26,808 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:26,808 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:08:26,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168003307] [2019-11-06 22:08:26,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:08:26,813 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:26,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:08:26,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:08:26,814 INFO L87 Difference]: Start difference. First operand 443 states and 514 transitions. Second operand 12 states. [2019-11-06 22:08:27,608 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:28,379 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:29,710 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:30,055 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:30,336 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:08:30,630 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:30,939 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:32,595 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:32,906 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:34,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:34,156 INFO L93 Difference]: Finished difference Result 1230 states and 1515 transitions. [2019-11-06 22:08:34,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-06 22:08:34,158 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 102 [2019-11-06 22:08:34,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:34,165 INFO L225 Difference]: With dead ends: 1230 [2019-11-06 22:08:34,165 INFO L226 Difference]: Without dead ends: 894 [2019-11-06 22:08:34,167 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-11-06 22:08:34,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2019-11-06 22:08:34,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 769. [2019-11-06 22:08:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2019-11-06 22:08:34,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 883 transitions. [2019-11-06 22:08:34,308 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 883 transitions. Word has length 102 [2019-11-06 22:08:34,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:34,309 INFO L462 AbstractCegarLoop]: Abstraction has 769 states and 883 transitions. [2019-11-06 22:08:34,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 22:08:34,309 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 883 transitions. [2019-11-06 22:08:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-11-06 22:08:34,312 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:34,312 INFO L410 BasicCegarLoop]: trace histogram [3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:08:34,313 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:34,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:34,313 INFO L82 PathProgramCache]: Analyzing trace with hash -577396182, now seen corresponding path program 1 times [2019-11-06 22:08:34,313 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:34,313 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445442434] [2019-11-06 22:08:34,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,672 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:34,973 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-06 22:08:34,974 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445442434] [2019-11-06 22:08:34,974 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593208916] [2019-11-06 22:08:34,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:08:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:35,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-06 22:08:35,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:08:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 30 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:08:35,389 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 22:08:35,389 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-11-06 22:08:35,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406798930] [2019-11-06 22:08:35,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-06 22:08:35,390 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:35,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-06 22:08:35,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-11-06 22:08:35,391 INFO L87 Difference]: Start difference. First operand 769 states and 883 transitions. Second operand 20 states. [2019-11-06 22:08:35,997 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194