/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 17:39:22,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 17:39:22,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 17:39:22,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 17:39:22,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 17:39:22,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 17:39:22,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 17:39:22,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 17:39:22,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 17:39:22,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 17:39:22,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 17:39:22,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 17:39:22,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 17:39:22,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 17:39:22,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 17:39:22,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 17:39:22,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 17:39:22,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 17:39:22,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 17:39:22,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 17:39:22,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 17:39:22,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 17:39:22,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 17:39:22,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 17:39:22,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 17:39:22,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 17:39:22,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 17:39:22,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 17:39:22,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 17:39:22,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 17:39:22,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 17:39:22,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 17:39:22,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 17:39:22,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 17:39:22,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 17:39:22,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 17:39:22,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 17:39:22,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 17:39:22,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 17:39:22,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 17:39:22,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 17:39:22,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 17:39:22,230 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 17:39:22,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 17:39:22,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 17:39:22,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 17:39:22,233 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 17:39:22,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 17:39:22,234 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 17:39:22,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 17:39:22,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 17:39:22,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 17:39:22,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 17:39:22,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 17:39:22,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 17:39:22,236 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 17:39:22,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 17:39:22,236 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 17:39:22,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 17:39:22,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 17:39:22,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 17:39:22,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 17:39:22,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 17:39:22,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 17:39:22,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 17:39:22,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 17:39:22,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 17:39:22,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 17:39:22,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 17:39:22,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 17:39:22,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 17:39:22,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; [2020-08-18 17:39:22,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 17:39:22,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 17:39:22,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 17:39:22,591 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 17:39:22,591 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 17:39:22,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-08-18 17:39:22,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a147c094/6ef545e30bb847ccb0bb266d8c37e371/FLAG98b65514b [2020-08-18 17:39:23,199 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 17:39:23,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-08-18 17:39:23,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a147c094/6ef545e30bb847ccb0bb266d8c37e371/FLAG98b65514b [2020-08-18 17:39:23,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a147c094/6ef545e30bb847ccb0bb266d8c37e371 [2020-08-18 17:39:23,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 17:39:23,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 17:39:23,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 17:39:23,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 17:39:23,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 17:39:23,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:39:23" (1/1) ... [2020-08-18 17:39:23,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:23, skipping insertion in model container [2020-08-18 17:39:23,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:39:23" (1/1) ... [2020-08-18 17:39:23,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 17:39:23,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 17:39:23,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:39:23,986 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 17:39:24,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:39:24,232 INFO L208 MainTranslator]: Completed translation [2020-08-18 17:39:24,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:24 WrapperNode [2020-08-18 17:39:24,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 17:39:24,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 17:39:24,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 17:39:24,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 17:39:24,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:24" (1/1) ... [2020-08-18 17:39:24,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:24" (1/1) ... [2020-08-18 17:39:24,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:24" (1/1) ... [2020-08-18 17:39:24,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:24" (1/1) ... [2020-08-18 17:39:24,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:24" (1/1) ... [2020-08-18 17:39:24,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:24" (1/1) ... [2020-08-18 17:39:24,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:24" (1/1) ... [2020-08-18 17:39:24,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 17:39:24,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 17:39:24,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 17:39:24,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 17:39:24,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 17:39:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 17:39:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 17:39:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 17:39:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 17:39:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 17:39:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 17:39:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 17:39:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 17:39:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 17:39:24,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 17:39:24,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 17:39:24,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-18 17:39:24,446 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 17:39:24,446 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 17:39:24,446 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 17:39:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 17:39:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 17:39:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 17:39:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 17:39:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 17:39:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 17:39:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 17:39:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 17:39:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 17:39:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 17:39:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 17:39:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 17:39:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 17:39:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 17:39:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 17:39:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-18 17:39:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 17:39:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-18 17:39:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 17:39:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 17:39:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 17:39:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 17:39:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 17:39:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 17:39:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 17:39:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 17:39:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 17:39:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 17:39:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 17:39:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 17:39:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 17:39:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 17:39:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 17:39:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 17:39:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 17:39:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 17:39:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 17:39:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-18 17:39:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 17:39:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 17:39:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 17:39:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 17:39:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 17:39:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 17:39:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 17:39:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 17:39:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 17:39:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 17:39:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 17:39:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 17:39:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 17:39:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 17:39:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 17:39:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 17:39:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 17:39:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 17:39:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 17:39:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 17:39:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 17:39:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 17:39:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 17:39:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 17:39:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 17:39:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 17:39:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 17:39:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 17:39:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 17:39:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 17:39:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 17:39:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 17:39:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 17:39:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-18 17:39:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 17:39:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-18 17:39:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 17:39:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 17:39:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 17:39:25,605 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 17:39:25,605 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 17:39:25,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:39:25 BoogieIcfgContainer [2020-08-18 17:39:25,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 17:39:25,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 17:39:25,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 17:39:25,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 17:39:25,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 05:39:23" (1/3) ... [2020-08-18 17:39:25,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e17197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:39:25, skipping insertion in model container [2020-08-18 17:39:25,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:39:24" (2/3) ... [2020-08-18 17:39:25,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e17197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:39:25, skipping insertion in model container [2020-08-18 17:39:25,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:39:25" (3/3) ... [2020-08-18 17:39:25,620 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2020-08-18 17:39:25,631 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 17:39:25,640 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 17:39:25,655 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 17:39:25,682 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 17:39:25,682 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 17:39:25,682 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 17:39:25,682 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 17:39:25,682 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 17:39:25,683 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 17:39:25,683 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 17:39:25,683 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 17:39:25,708 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2020-08-18 17:39:25,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-18 17:39:25,718 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:39:25,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:39:25,720 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:39:25,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:39:25,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1763081390, now seen corresponding path program 1 times [2020-08-18 17:39:25,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:39:25,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684313420] [2020-08-18 17:39:25,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:39:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:26,389 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:39:26,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:39:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:26,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:39:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:26,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:39:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:26,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:26,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:39:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:26,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 17:39:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:26,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 17:39:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:26,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:39:26,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684313420] [2020-08-18 17:39:26,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:39:26,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 17:39:26,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162733017] [2020-08-18 17:39:26,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 17:39:26,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:39:26,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 17:39:26,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 17:39:26,510 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 3 states. [2020-08-18 17:39:27,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:39:27,711 INFO L93 Difference]: Finished difference Result 303 states and 398 transitions. [2020-08-18 17:39:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 17:39:27,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-18 17:39:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:39:27,728 INFO L225 Difference]: With dead ends: 303 [2020-08-18 17:39:27,729 INFO L226 Difference]: Without dead ends: 164 [2020-08-18 17:39:27,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 17:39:27,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-08-18 17:39:27,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 130. [2020-08-18 17:39:27,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-08-18 17:39:27,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 154 transitions. [2020-08-18 17:39:27,825 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 154 transitions. Word has length 46 [2020-08-18 17:39:27,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:39:27,826 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 154 transitions. [2020-08-18 17:39:27,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 17:39:27,826 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 154 transitions. [2020-08-18 17:39:27,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-18 17:39:27,833 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:39:27,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:39:27,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 17:39:27,834 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:39:27,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:39:27,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1948835968, now seen corresponding path program 1 times [2020-08-18 17:39:27,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:39:27,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115403916] [2020-08-18 17:39:27,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:39:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:28,193 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:39:28,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:39:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:28,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:39:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:28,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:39:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:28,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:28,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:39:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:28,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 17:39:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:28,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 17:39:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:39:28,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115403916] [2020-08-18 17:39:28,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:39:28,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 17:39:28,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419488551] [2020-08-18 17:39:28,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 17:39:28,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:39:28,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 17:39:28,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 17:39:28,269 INFO L87 Difference]: Start difference. First operand 130 states and 154 transitions. Second operand 4 states. [2020-08-18 17:39:28,646 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:29,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:39:29,480 INFO L93 Difference]: Finished difference Result 236 states and 289 transitions. [2020-08-18 17:39:29,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 17:39:29,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-18 17:39:29,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:39:29,491 INFO L225 Difference]: With dead ends: 236 [2020-08-18 17:39:29,491 INFO L226 Difference]: Without dead ends: 148 [2020-08-18 17:39:29,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:39:29,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-18 17:39:29,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2020-08-18 17:39:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-08-18 17:39:29,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2020-08-18 17:39:29,548 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 47 [2020-08-18 17:39:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:39:29,549 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2020-08-18 17:39:29,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 17:39:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2020-08-18 17:39:29,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-18 17:39:29,559 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:39:29,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:39:29,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 17:39:29,559 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:39:29,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:39:29,560 INFO L82 PathProgramCache]: Analyzing trace with hash -970175768, now seen corresponding path program 1 times [2020-08-18 17:39:29,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:39:29,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713224983] [2020-08-18 17:39:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:39:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:29,917 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:39:29,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:39:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:29,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:39:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:29,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:39:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:29,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:29,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:39:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:29,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 17:39:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:29,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 17:39:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:39:29,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713224983] [2020-08-18 17:39:29,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:39:29,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 17:39:29,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927238975] [2020-08-18 17:39:29,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 17:39:29,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:39:29,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 17:39:29,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 17:39:29,996 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 8 states. [2020-08-18 17:39:30,379 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:39:30,724 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:30,998 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:31,245 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:32,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:39:32,431 INFO L93 Difference]: Finished difference Result 245 states and 303 transitions. [2020-08-18 17:39:32,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 17:39:32,433 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-18 17:39:32,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:39:32,437 INFO L225 Difference]: With dead ends: 245 [2020-08-18 17:39:32,437 INFO L226 Difference]: Without dead ends: 148 [2020-08-18 17:39:32,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 17:39:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-18 17:39:32,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2020-08-18 17:39:32,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-08-18 17:39:32,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2020-08-18 17:39:32,476 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 51 [2020-08-18 17:39:32,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:39:32,476 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2020-08-18 17:39:32,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 17:39:32,476 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2020-08-18 17:39:32,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 17:39:32,478 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:39:32,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:39:32,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 17:39:32,478 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:39:32,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:39:32,479 INFO L82 PathProgramCache]: Analyzing trace with hash 137025886, now seen corresponding path program 1 times [2020-08-18 17:39:32,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:39:32,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421084787] [2020-08-18 17:39:32,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:39:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,753 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:39:32,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:39:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:39:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:39:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:39:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-18 17:39:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 17:39:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 17:39:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:32,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:39:32,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421084787] [2020-08-18 17:39:32,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:39:32,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 17:39:32,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540761918] [2020-08-18 17:39:32,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 17:39:32,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:39:32,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 17:39:32,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-18 17:39:32,889 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 6 states. [2020-08-18 17:39:33,234 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:39:34,384 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:35,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:39:35,096 INFO L93 Difference]: Finished difference Result 342 states and 424 transitions. [2020-08-18 17:39:35,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 17:39:35,097 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-08-18 17:39:35,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:39:35,101 INFO L225 Difference]: With dead ends: 342 [2020-08-18 17:39:35,101 INFO L226 Difference]: Without dead ends: 245 [2020-08-18 17:39:35,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-18 17:39:35,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-08-18 17:39:35,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 204. [2020-08-18 17:39:35,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-08-18 17:39:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 233 transitions. [2020-08-18 17:39:35,147 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 233 transitions. Word has length 64 [2020-08-18 17:39:35,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:39:35,148 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 233 transitions. [2020-08-18 17:39:35,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 17:39:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 233 transitions. [2020-08-18 17:39:35,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-18 17:39:35,149 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:39:35,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:39:35,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 17:39:35,150 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:39:35,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:39:35,150 INFO L82 PathProgramCache]: Analyzing trace with hash -274572639, now seen corresponding path program 1 times [2020-08-18 17:39:35,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:39:35,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536089218] [2020-08-18 17:39:35,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:39:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,494 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:39:35,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:39:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:39:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:39:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:39:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-18 17:39:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 17:39:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 17:39:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-18 17:39:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:35,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:39:35,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536089218] [2020-08-18 17:39:35,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:39:35,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 17:39:35,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211004611] [2020-08-18 17:39:35,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 17:39:35,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:39:35,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 17:39:35,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 17:39:35,630 INFO L87 Difference]: Start difference. First operand 204 states and 233 transitions. Second operand 8 states. [2020-08-18 17:39:36,006 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:39:36,977 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:37,325 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:39:37,866 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:38,103 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:38,373 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:39,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:39:39,318 INFO L93 Difference]: Finished difference Result 607 states and 749 transitions. [2020-08-18 17:39:39,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 17:39:39,318 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-08-18 17:39:39,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:39:39,324 INFO L225 Difference]: With dead ends: 607 [2020-08-18 17:39:39,325 INFO L226 Difference]: Without dead ends: 427 [2020-08-18 17:39:39,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-18 17:39:39,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-18 17:39:39,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 363. [2020-08-18 17:39:39,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-08-18 17:39:39,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 416 transitions. [2020-08-18 17:39:39,444 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 416 transitions. Word has length 78 [2020-08-18 17:39:39,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:39:39,445 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 416 transitions. [2020-08-18 17:39:39,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 17:39:39,445 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 416 transitions. [2020-08-18 17:39:39,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-08-18 17:39:39,446 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:39:39,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:39:39,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 17:39:39,447 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:39:39,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:39:39,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1223934493, now seen corresponding path program 1 times [2020-08-18 17:39:39,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:39:39,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985438683] [2020-08-18 17:39:39,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:39:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,727 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:39:39,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:39:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:39:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:39:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:39:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 17:39:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 17:39:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 17:39:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 17:39:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-18 17:39:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:39:39,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985438683] [2020-08-18 17:39:39,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:39:39,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 17:39:39,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121585061] [2020-08-18 17:39:39,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 17:39:39,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:39:39,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 17:39:39,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 17:39:39,842 INFO L87 Difference]: Start difference. First operand 363 states and 416 transitions. Second operand 9 states. [2020-08-18 17:39:40,333 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:39:41,409 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:39:41,673 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:42,613 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:42,865 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:43,083 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:43,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:39:43,367 INFO L93 Difference]: Finished difference Result 466 states and 584 transitions. [2020-08-18 17:39:43,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 17:39:43,367 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-08-18 17:39:43,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:39:43,372 INFO L225 Difference]: With dead ends: 466 [2020-08-18 17:39:43,372 INFO L226 Difference]: Without dead ends: 463 [2020-08-18 17:39:43,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-18 17:39:43,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-08-18 17:39:43,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 363. [2020-08-18 17:39:43,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-08-18 17:39:43,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 415 transitions. [2020-08-18 17:39:43,449 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 415 transitions. Word has length 82 [2020-08-18 17:39:43,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:39:43,450 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 415 transitions. [2020-08-18 17:39:43,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 17:39:43,450 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 415 transitions. [2020-08-18 17:39:43,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-18 17:39:43,452 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:39:43,452 INFO L422 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] [2020-08-18 17:39:43,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 17:39:43,453 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:39:43,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:39:43,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1913348729, now seen corresponding path program 1 times [2020-08-18 17:39:43,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:39:43,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293368260] [2020-08-18 17:39:43,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:39:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,728 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:39:43,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:39:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:39:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:39:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:39:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 17:39:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 17:39:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 17:39:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-18 17:39:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-18 17:39:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:43,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 17:39:43,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293368260] [2020-08-18 17:39:43,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:39:43,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 17:39:43,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208346970] [2020-08-18 17:39:43,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 17:39:43,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:39:43,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 17:39:43,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 17:39:43,877 INFO L87 Difference]: Start difference. First operand 363 states and 415 transitions. Second operand 9 states. [2020-08-18 17:39:44,719 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:44,958 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 17:39:45,214 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:45,448 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:46,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:39:46,467 INFO L93 Difference]: Finished difference Result 810 states and 1008 transitions. [2020-08-18 17:39:46,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 17:39:46,467 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-08-18 17:39:46,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:39:46,471 INFO L225 Difference]: With dead ends: 810 [2020-08-18 17:39:46,471 INFO L226 Difference]: Without dead ends: 471 [2020-08-18 17:39:46,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-18 17:39:46,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-08-18 17:39:46,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 373. [2020-08-18 17:39:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-08-18 17:39:46,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2020-08-18 17:39:46,539 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 98 [2020-08-18 17:39:46,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:39:46,539 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2020-08-18 17:39:46,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 17:39:46,539 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2020-08-18 17:39:46,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-18 17:39:46,541 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:39:46,541 INFO L422 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] [2020-08-18 17:39:46,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 17:39:46,542 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:39:46,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:39:46,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1019862391, now seen corresponding path program 1 times [2020-08-18 17:39:46,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:39:46,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446886584] [2020-08-18 17:39:46,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:39:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,795 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:39:46,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:39:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:39:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:39:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:39:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 17:39:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 17:39:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 17:39:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-18 17:39:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-18 17:39:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:46,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 17:39:46,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446886584] [2020-08-18 17:39:46,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:39:46,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-18 17:39:46,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923165559] [2020-08-18 17:39:46,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 17:39:46,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:39:46,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 17:39:46,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-18 17:39:46,948 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 11 states. [2020-08-18 17:39:47,413 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:47,640 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:47,857 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:48,410 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:48,648 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:48,889 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 17:39:50,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:39:50,017 INFO L93 Difference]: Finished difference Result 830 states and 1030 transitions. [2020-08-18 17:39:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 17:39:50,019 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-08-18 17:39:50,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:39:50,024 INFO L225 Difference]: With dead ends: 830 [2020-08-18 17:39:50,024 INFO L226 Difference]: Without dead ends: 481 [2020-08-18 17:39:50,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-18 17:39:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-08-18 17:39:50,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 381. [2020-08-18 17:39:50,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-08-18 17:39:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 433 transitions. [2020-08-18 17:39:50,080 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 433 transitions. Word has length 98 [2020-08-18 17:39:50,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:39:50,080 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 433 transitions. [2020-08-18 17:39:50,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 17:39:50,081 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 433 transitions. [2020-08-18 17:39:50,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-18 17:39:50,082 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:39:50,083 INFO L422 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] [2020-08-18 17:39:50,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 17:39:50,083 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:39:50,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:39:50,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1027621750, now seen corresponding path program 1 times [2020-08-18 17:39:50,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:39:50,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681165633] [2020-08-18 17:39:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:39:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,362 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:39:50,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:39:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:39:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:39:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:39:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 17:39:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 17:39:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 17:39:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-18 17:39:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-18 17:39:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 17:39:50,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681165633] [2020-08-18 17:39:50,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:39:50,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 17:39:50,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283693491] [2020-08-18 17:39:50,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 17:39:50,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:39:50,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 17:39:50,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 17:39:50,488 INFO L87 Difference]: Start difference. First operand 381 states and 433 transitions. Second operand 7 states. [2020-08-18 17:39:50,966 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:39:51,456 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:39:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:39:53,407 INFO L93 Difference]: Finished difference Result 1133 states and 1452 transitions. [2020-08-18 17:39:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 17:39:53,407 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-08-18 17:39:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:39:53,413 INFO L225 Difference]: With dead ends: 1133 [2020-08-18 17:39:53,414 INFO L226 Difference]: Without dead ends: 776 [2020-08-18 17:39:53,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-18 17:39:53,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-08-18 17:39:53,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 677. [2020-08-18 17:39:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-08-18 17:39:53,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 803 transitions. [2020-08-18 17:39:53,546 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 803 transitions. Word has length 98 [2020-08-18 17:39:53,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:39:53,547 INFO L479 AbstractCegarLoop]: Abstraction has 677 states and 803 transitions. [2020-08-18 17:39:53,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 17:39:53,547 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 803 transitions. [2020-08-18 17:39:53,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-18 17:39:53,549 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:39:53,550 INFO L422 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] [2020-08-18 17:39:53,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 17:39:53,550 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:39:53,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:39:53,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1865521988, now seen corresponding path program 1 times [2020-08-18 17:39:53,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:39:53,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314196673] [2020-08-18 17:39:53,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:39:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,820 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:39:53,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:39:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:39:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:39:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:39:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 17:39:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 17:39:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 17:39:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:39:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 17:39:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:53,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:54,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:39:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:54,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:39:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:54,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-18 17:39:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:54,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 17:39:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:39:54,108 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 17:39:54,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314196673] [2020-08-18 17:39:54,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:39:54,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-18 17:39:54,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303527941] [2020-08-18 17:39:54,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-18 17:39:54,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:39:54,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-18 17:39:54,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2020-08-18 17:39:54,111 INFO L87 Difference]: Start difference. First operand 677 states and 803 transitions. Second operand 17 states. [2020-08-18 17:39:54,756 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:39:55,147 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 17:39:55,506 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 17:39:55,756 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 17:39:56,316 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:39:57,235 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:57,539 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:57,781 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:58,045 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:58,338 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:58,617 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:39:59,139 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-08-18 17:39:59,660 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-08-18 17:40:01,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:40:01,497 INFO L93 Difference]: Finished difference Result 1398 states and 1726 transitions. [2020-08-18 17:40:01,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-18 17:40:01,498 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 102 [2020-08-18 17:40:01,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:40:01,503 INFO L225 Difference]: With dead ends: 1398 [2020-08-18 17:40:01,503 INFO L226 Difference]: Without dead ends: 745 [2020-08-18 17:40:01,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=304, Invalid=1256, Unknown=0, NotChecked=0, Total=1560 [2020-08-18 17:40:01,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-08-18 17:40:01,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 649. [2020-08-18 17:40:01,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-08-18 17:40:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 757 transitions. [2020-08-18 17:40:01,617 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 757 transitions. Word has length 102 [2020-08-18 17:40:01,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:40:01,617 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 757 transitions. [2020-08-18 17:40:01,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-18 17:40:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 757 transitions. [2020-08-18 17:40:01,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-18 17:40:01,620 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:40:01,621 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-08-18 17:40:01,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 17:40:01,621 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:40:01,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:40:01,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1153565628, now seen corresponding path program 1 times [2020-08-18 17:40:01,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:40:01,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763121595] [2020-08-18 17:40:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:40:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:01,890 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:40:01,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:40:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:01,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:40:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:01,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:40:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:01,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:40:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:01,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 17:40:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:01,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 17:40:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:01,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 17:40:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:01,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:40:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:40:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:40:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:40:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 17:40:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:40:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:40:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:40:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 17:40:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:40:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 17:40:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-18 17:40:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-08-18 17:40:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:40:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:40:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 17:40:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 17:40:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-18 17:40:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-18 17:40:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:40:02,292 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-08-18 17:40:02,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763121595] [2020-08-18 17:40:02,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:40:02,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-18 17:40:02,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917338823] [2020-08-18 17:40:02,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-18 17:40:02,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:40:02,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-18 17:40:02,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-08-18 17:40:02,297 INFO L87 Difference]: Start difference. First operand 649 states and 757 transitions. Second operand 18 states. [2020-08-18 17:40:03,280 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:40:03,619 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 17:40:03,888 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 17:40:04,146 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 17:40:04,778 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 17:40:05,744 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:40:06,071 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:40:06,359 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:40:06,636 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:40:06,959 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:40:07,229 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:40:08,427 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:40:08,668 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:40:08,967 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:40:09,224 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 17:40:10,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:40:10,120 INFO L93 Difference]: Finished difference Result 1181 states and 1457 transitions. [2020-08-18 17:40:10,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-18 17:40:10,121 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 153 [2020-08-18 17:40:10,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:40:10,122 INFO L225 Difference]: With dead ends: 1181 [2020-08-18 17:40:10,123 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 17:40:10,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=338, Invalid=1554, Unknown=0, NotChecked=0, Total=1892 [2020-08-18 17:40:10,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 17:40:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 17:40:10,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 17:40:10,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 17:40:10,130 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2020-08-18 17:40:10,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:40:10,130 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 17:40:10,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-18 17:40:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 17:40:10,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 17:40:10,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 17:40:10,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 17:40:13,222 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 294 DAG size of output: 242 [2020-08-18 17:40:14,941 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 242 [2020-08-18 17:40:15,716 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 244 [2020-08-18 17:40:16,372 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 242 [2020-08-18 17:40:17,393 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 18 [2020-08-18 17:40:18,059 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 16 [2020-08-18 17:40:18,217 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2020-08-18 17:40:18,376 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2020-08-18 17:40:18,587 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 22 [2020-08-18 17:40:18,749 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 1 [2020-08-18 17:40:18,943 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2020-08-18 17:40:19,113 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 24 [2020-08-18 17:40:19,282 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 24 [2020-08-18 17:40:19,488 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 17:40:19,663 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 1 [2020-08-18 17:40:20,161 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 20 [2020-08-18 17:40:20,338 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1