/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 produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:11:57,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:11:57,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:11:57,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:11:57,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:11:57,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:11:57,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:11:57,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:11:57,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:11:57,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:11:57,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:11:57,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:11:57,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:11:57,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:11:57,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:11:57,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:11:57,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:11:57,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:11:57,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:11:57,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:11:57,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:11:57,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:11:57,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:11:57,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:11:57,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:11:57,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:11:57,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:11:57,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:11:57,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:11:57,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:11:57,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:11:57,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:11:57,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:11:57,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:11:57,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:11:57,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:11:57,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:11:57,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:11:57,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:11:57,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:11:57,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:11:57,222 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 [2020-09-21 12:11:57,257 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:11:57,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:11:57,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:11:57,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:11:57,260 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:11:57,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:11:57,260 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:11:57,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:11:57,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:11:57,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:11:57,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:11:57,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:11:57,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:11:57,262 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:11:57,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:11:57,262 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:11:57,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:11:57,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:11:57,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:11:57,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:11:57,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:11:57,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:11:57,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:11:57,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:11:57,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:11:57,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:11:57,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:11:57,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:11:57,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:11:57,267 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:11:57,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:11:57,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:11:57,775 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:11:57,778 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:11:57,778 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:11:57,780 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-09-21 12:11:57,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73d27a179/cea4fb2ffc8a4056844da2b7ab7314f8/FLAGfd558f4ec [2020-09-21 12:11:58,524 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:11:58,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-09-21 12:11:58,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73d27a179/cea4fb2ffc8a4056844da2b7ab7314f8/FLAGfd558f4ec [2020-09-21 12:11:58,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73d27a179/cea4fb2ffc8a4056844da2b7ab7314f8 [2020-09-21 12:11:58,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:11:58,759 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:11:58,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:11:58,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:11:58,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:11:58,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:11:58" (1/1) ... [2020-09-21 12:11:58,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e89ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:58, skipping insertion in model container [2020-09-21 12:11:58,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:11:58" (1/1) ... [2020-09-21 12:11:58,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:11:58,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:11:59,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:11:59,336 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:11:59,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:11:59,501 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:11:59,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:59 WrapperNode [2020-09-21 12:11:59,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:11:59,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:11:59,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:11:59,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:11:59,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:59" (1/1) ... [2020-09-21 12:11:59,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:59" (1/1) ... [2020-09-21 12:11:59,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:59" (1/1) ... [2020-09-21 12:11:59,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:59" (1/1) ... [2020-09-21 12:11:59,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:59" (1/1) ... [2020-09-21 12:11:59,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:59" (1/1) ... [2020-09-21 12:11:59,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:59" (1/1) ... [2020-09-21 12:11:59,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:11:59,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:11:59,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:11:59,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:11:59,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:59" (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 [2020-09-21 12:11:59,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:11:59,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:11:59,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:11:59,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:11:59,704 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:11:59,704 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:11:59,704 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-21 12:11:59,704 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:11:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:11:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:11:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:11:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:11:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:11:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 12:11:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:11:59,708 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 12:11:59,708 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:11:59,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:11:59,709 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:11:59,709 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:11:59,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:11:59,710 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:11:59,711 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:11:59,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:11:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:11:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:11:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:11:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:11:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:11:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:11:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:11:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:11:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:11:59,714 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:11:59,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:11:59,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 12:11:59,714 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:11:59,714 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:11:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:11:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:11:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:11:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:11:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:11:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:11:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:11:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:11:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:11:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 12:11:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:11:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:11:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:11:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:11:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:11:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:11:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 12:11:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:11:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:11:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:11:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 12:11:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-21 12:11:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:11:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:11:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:11:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:11:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:11:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:11:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:11:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:11:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:11:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:11:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:11:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:11:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:11:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:11:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:11:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:11:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:11:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:11:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:11:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:11:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:11:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:11:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:11:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:11:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:11:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:11:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:11:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:11:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:11:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:11:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:11:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:11:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:11:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:12:01,050 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:12:01,050 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:12:01,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:12:01 BoogieIcfgContainer [2020-09-21 12:12:01,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:12:01,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:12:01,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:12:01,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:12:01,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:11:58" (1/3) ... [2020-09-21 12:12:01,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e78f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:12:01, skipping insertion in model container [2020-09-21 12:12:01,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:59" (2/3) ... [2020-09-21 12:12:01,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e78f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:12:01, skipping insertion in model container [2020-09-21 12:12:01,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:12:01" (3/3) ... [2020-09-21 12:12:01,068 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-09-21 12:12:01,080 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:12:01,091 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:12:01,109 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:12:01,136 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:12:01,136 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:12:01,136 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:12:01,136 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:12:01,137 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:12:01,137 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:12:01,137 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:12:01,137 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:12:01,167 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-09-21 12:12:01,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:12:01,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:01,182 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] [2020-09-21 12:12:01,183 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:01,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:01,191 INFO L82 PathProgramCache]: Analyzing trace with hash -586231627, now seen corresponding path program 1 times [2020-09-21 12:12:01,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:01,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145131334] [2020-09-21 12:12:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:01,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:01,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:02,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:02,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:12:02,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:12:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1035 [2020-09-21 12:12:02,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:02,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:02,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:12:02,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:02,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:12:02,975 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:12:02,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:12:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:02,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:03,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:03,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:03,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:03,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 12:12:03,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:03,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:03,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:03,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:03,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:03,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:12:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:03,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:03,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:03,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:03,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:03,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:03,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:03,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:12:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:03,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:03,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:03,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:03,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:03,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:03,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:03,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:03,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:03,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:03,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:03,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:12:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:03,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:03,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:03,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:03,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:12:03,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:03,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:03,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:03,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:03,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:03,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:12:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:03,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:03,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:03,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:03,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:03,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:03,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:03,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:03,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:12:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:03,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:03,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:03,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:03,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:03,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:12:03,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:03,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:03,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:03,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:03,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:12:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:03,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:03,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:03,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:03,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:03,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:03,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:12:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:03,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:03,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:03,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:03,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:03,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:03,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:03,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:03,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:12:03,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145131334] [2020-09-21 12:12:03,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:12:03,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:12:03,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395941521] [2020-09-21 12:12:03,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:12:03,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:12:03,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:12:03,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:12:03,196 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 3 states. [2020-09-21 12:12:04,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:04,558 INFO L93 Difference]: Finished difference Result 314 states and 413 transitions. [2020-09-21 12:12:04,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:12:04,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 12:12:04,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:04,580 INFO L225 Difference]: With dead ends: 314 [2020-09-21 12:12:04,580 INFO L226 Difference]: Without dead ends: 170 [2020-09-21 12:12:04,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:12:04,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-09-21 12:12:04,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 135. [2020-09-21 12:12:04,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-09-21 12:12:04,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2020-09-21 12:12:04,693 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 52 [2020-09-21 12:12:04,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:04,696 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2020-09-21 12:12:04,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:12:04,696 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2020-09-21 12:12:04,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 12:12:04,701 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:04,701 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] [2020-09-21 12:12:04,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:12:04,702 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:04,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:04,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1405243585, now seen corresponding path program 1 times [2020-09-21 12:12:04,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:04,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105945471] [2020-09-21 12:12:04,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:04,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:04,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:05,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:05,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 12:12:05,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:12:05,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-21 12:12:05,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:05,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:05,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:12:05,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:12:05,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:06,148 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:12:06,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:12:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:06,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:06,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:06,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:06,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:06,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 12:12:06,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:06,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:06,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:12:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:06,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:06,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:06,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:06,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:06,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:06,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:06,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:06,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:06,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:12:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:06,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:06,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:06,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:06,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:06,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:06,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:06,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:06,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:06,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:06,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:06,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:12:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:06,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:06,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:06,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:06,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:06,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:06,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:06,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:06,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:12:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:06,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:06,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:06,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:06,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:06,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:06,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:06,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:06,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:06,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:06,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:06,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:12:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:06,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:06,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:06,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:06,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:06,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:06,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:06,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:06,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:06,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:06,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:06,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:12:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:06,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:06,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:06,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:06,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:06,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:06,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:06,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:06,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:06,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:06,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:06,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:12:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:06,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:06,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:06,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:06,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:06,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:06,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:06,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:06,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:12:06,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105945471] [2020-09-21 12:12:06,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:12:06,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:12:06,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136658525] [2020-09-21 12:12:06,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:12:06,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:12:06,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:12:06,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:12:06,325 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 4 states. [2020-09-21 12:12:06,777 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:12:07,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:07,687 INFO L93 Difference]: Finished difference Result 237 states and 292 transitions. [2020-09-21 12:12:07,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:12:07,688 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 12:12:07,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:07,692 INFO L225 Difference]: With dead ends: 237 [2020-09-21 12:12:07,692 INFO L226 Difference]: Without dead ends: 154 [2020-09-21 12:12:07,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:12:07,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-21 12:12:07,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 126. [2020-09-21 12:12:07,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-21 12:12:07,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2020-09-21 12:12:07,739 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 53 [2020-09-21 12:12:07,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:07,740 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2020-09-21 12:12:07,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:12:07,740 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2020-09-21 12:12:07,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-21 12:12:07,743 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:07,743 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] [2020-09-21 12:12:07,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:12:07,744 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:07,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:07,744 INFO L82 PathProgramCache]: Analyzing trace with hash 340068721, now seen corresponding path program 1 times [2020-09-21 12:12:07,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:07,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864448825] [2020-09-21 12:12:07,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:07,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:08,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:08,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:08,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-21 12:12:08,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:12:08,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:12:08,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:08,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:12:08,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:08,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 12:12:08,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:09,163 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:12:09,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:12:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:09,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:09,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:09,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:09,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:09,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-21 12:12:09,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:09,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:12:09,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:09,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:12:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:09,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:09,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:09,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:09,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:09,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:09,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:09,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:09,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:09,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:09,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:09,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:12:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:09,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:09,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:09,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:09,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:09,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:09,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:09,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:09,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:09,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:09,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:09,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:12:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:09,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:09,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:09,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:09,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:09,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:12:09,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:12:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:09,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:12:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:09,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:09,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:09,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:09,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:09,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:09,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:09,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:09,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:12:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:09,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:09,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:09,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:09,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:09,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:09,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:09,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:09,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:12:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:09,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:09,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:09,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:09,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:09,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:09,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:09,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:09,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:12:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:09,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:09,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:09,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:09,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:09,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:09,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:09,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:12:09,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864448825] [2020-09-21 12:12:09,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:12:09,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:12:09,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783096692] [2020-09-21 12:12:09,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:12:09,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:12:09,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:12:09,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:12:09,404 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand 5 states. [2020-09-21 12:12:09,699 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:12:10,504 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:12:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:12,318 INFO L93 Difference]: Finished difference Result 439 states and 548 transitions. [2020-09-21 12:12:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:12:12,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-09-21 12:12:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:12,325 INFO L225 Difference]: With dead ends: 439 [2020-09-21 12:12:12,326 INFO L226 Difference]: Without dead ends: 337 [2020-09-21 12:12:12,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:12:12,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-21 12:12:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 272. [2020-09-21 12:12:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-21 12:12:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 331 transitions. [2020-09-21 12:12:12,407 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 331 transitions. Word has length 58 [2020-09-21 12:12:12,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:12,407 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 331 transitions. [2020-09-21 12:12:12,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:12:12,408 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 331 transitions. [2020-09-21 12:12:12,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 12:12:12,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:12,411 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] [2020-09-21 12:12:12,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:12:12,412 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:12,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:12,412 INFO L82 PathProgramCache]: Analyzing trace with hash -805179876, now seen corresponding path program 1 times [2020-09-21 12:12:12,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:12,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330243997] [2020-09-21 12:12:12,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:12,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:13,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:13,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:12:13,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:13,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-09-21 12:12:13,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 12:12:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:12:13,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:14,007 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:12:14,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:12:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:14,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:14,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:14,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:14,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:14,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-21 12:12:14,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:12:14,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:14,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:12:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:14,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:14,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:14,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:14,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:14,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:14,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:14,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:14,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:12:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:14,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:14,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:14,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:14,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:14,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:14,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:14,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:14,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:14,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:14,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:14,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:12:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:14,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:14,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:14,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:14,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:14,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:12:14,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:12:14,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:14,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:12:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:14,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:14,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:14,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:14,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:14,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:14,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:14,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:14,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:12:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:14,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:14,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:14,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:12:14,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:14,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:12:14,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:14,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:12:14,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:14,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:12:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:14,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:14,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:14,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:14,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:14,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:14,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:12:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:14,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:12:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:14,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:14,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:14,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:14,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:14,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:12:14,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:14,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:12:14,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:14,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:12:14,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:14,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 12:12:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:14,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:14,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:14,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:14,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:14,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:14,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:14,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:14,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:12:14,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330243997] [2020-09-21 12:12:14,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:12:14,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:12:14,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037902623] [2020-09-21 12:12:14,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:12:14,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:12:14,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:12:14,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:12:14,353 INFO L87 Difference]: Start difference. First operand 272 states and 331 transitions. Second operand 8 states. [2020-09-21 12:12:14,718 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:12:16,280 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:12:16,723 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:12:17,112 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:12:17,455 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:12:17,940 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:12:18,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:18,730 INFO L93 Difference]: Finished difference Result 845 states and 1114 transitions. [2020-09-21 12:12:18,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:12:18,731 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 12:12:18,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:18,738 INFO L225 Difference]: With dead ends: 845 [2020-09-21 12:12:18,738 INFO L226 Difference]: Without dead ends: 597 [2020-09-21 12:12:18,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:12:18,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-09-21 12:12:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 521. [2020-09-21 12:12:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-09-21 12:12:18,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 649 transitions. [2020-09-21 12:12:18,882 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 649 transitions. Word has length 63 [2020-09-21 12:12:18,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:18,883 INFO L479 AbstractCegarLoop]: Abstraction has 521 states and 649 transitions. [2020-09-21 12:12:18,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:12:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 649 transitions. [2020-09-21 12:12:18,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 12:12:18,887 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:18,887 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] [2020-09-21 12:12:18,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:12:18,887 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:18,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:18,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1293290686, now seen corresponding path program 1 times [2020-09-21 12:12:18,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:18,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [205259781] [2020-09-21 12:12:18,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:12:18,953 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:12:18,953 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:12:18,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:12:18,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:12:18 BoogieIcfgContainer [2020-09-21 12:12:18,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:12:18,996 INFO L168 Benchmark]: Toolchain (without parser) took 20240.50 ms. Allocated memory was 140.0 MB in the beginning and 507.0 MB in the end (delta: 367.0 MB). Free memory was 102.4 MB in the beginning and 182.8 MB in the end (delta: -80.4 MB). Peak memory consumption was 286.6 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:18,997 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:12:18,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.38 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 169.9 MB in the end (delta: -68.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:19,005 INFO L168 Benchmark]: Boogie Preprocessor took 101.16 ms. Allocated memory is still 202.9 MB. Free memory was 169.9 MB in the beginning and 165.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:19,006 INFO L168 Benchmark]: RCFGBuilder took 1452.47 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 165.2 MB in the beginning and 194.8 MB in the end (delta: -29.6 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:19,007 INFO L168 Benchmark]: TraceAbstraction took 17934.96 ms. Allocated memory was 237.0 MB in the beginning and 507.0 MB in the end (delta: 270.0 MB). Free memory was 194.8 MB in the beginning and 182.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 282.1 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:19,020 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.38 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 169.9 MB in the end (delta: -68.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.16 ms. Allocated memory is still 202.9 MB. Free memory was 169.9 MB in the beginning and 165.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1452.47 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 165.2 MB in the beginning and 194.8 MB in the end (delta: -29.6 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17934.96 ms. Allocated memory was 237.0 MB in the beginning and 507.0 MB in the end (delta: 270.0 MB). Free memory was 194.8 MB in the beginning and 182.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 282.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L369] int cleanupTimeShifts = 4; [L637] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L445] int retValue_acc ; [L446] int tmp ; [L450] FCALL select_helpers() [L451] FCALL select_features() [L452] CALL, EXPR valid_product() [L949] int retValue_acc ; [L952] retValue_acc = 1 [L953] return (retValue_acc); [L452] RET, EXPR valid_product() [L452] tmp = valid_product() [L454] COND TRUE \read(tmp) [L456] FCALL setup() [L457] CALL runTest() [L436] CALL test() [L266] int splverifierCounter ; [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L270] int tmp___2 ; [L273] splverifierCounter = 0 [L275] COND TRUE 1 [L277] COND TRUE splverifierCounter < 4 [L283] tmp = __VERIFIER_nondet_int() [L285] COND TRUE \read(tmp) [L287] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L287] RET waterRise() [L293] tmp___0 = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp___0)) [L303] tmp___2 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___2)) [L311] tmp___1 = __VERIFIER_nondet_int() [L313] COND TRUE \read(tmp___1) [L315] CALL stopSystem() [L242] COND FALSE !(\read(pumpRunning)) [L249] systemActive = 0 [L315] RET stopSystem() [L322] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND FALSE !(\read(systemActive)) [L83] CALL __utac_acc__Specification3_spec__1() [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L342] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L342] RET, EXPR isMethaneLevelCritical() [L342] tmp = isMethaneLevelCritical() [L344] COND FALSE !(\read(tmp)) [L348] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L348] RET, EXPR getWaterLevel() [L348] tmp___0 = getWaterLevel() [L350] COND TRUE tmp___0 == 2 [L352] CALL, EXPR isPumpRunning() [L175] int retValue_acc ; [L178] retValue_acc = pumpRunning [L179] return (retValue_acc); [L352] RET, EXPR isPumpRunning() [L352] tmp___1 = isPumpRunning() [L354] COND FALSE !(\read(tmp___1)) [L358] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 237 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 520 SDtfs, 742 SDslu, 319 SDs, 0 SdLazy, 1463 SolverSat, 444 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=521occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 204 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 61969 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...