/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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_spec2_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:20:22,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:20:22,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:20:22,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:20:22,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:20:22,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:20:22,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:20:22,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:20:22,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:20:22,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:20:22,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:20:22,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:20:22,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:20:22,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:20:22,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:20:22,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:20:22,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:20:22,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:20:22,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:20:22,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:20:22,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:20:22,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:20:22,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:20:22,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:20:22,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:20:22,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:20:22,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:20:22,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:20:22,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:20:22,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:20:22,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:20:22,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:20:22,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:20:22,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:20:22,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:20:22,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:20:22,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:20:22,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:20:22,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:20:22,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:20:22,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:20:22,212 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 [2020-09-24 21:20:22,240 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:20:22,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:20:22,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:20:22,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:20:22,242 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:20:22,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:20:22,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:20:22,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:20:22,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:20:22,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:20:22,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:20:22,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:20:22,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:20:22,243 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:20:22,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:20:22,244 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:20:22,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:20:22,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:20:22,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:20:22,245 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:20:22,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:20:22,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:20:22,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:20:22,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:20:22,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:20:22,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:20:22,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:20:22,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:20:22,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:20:22,247 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.rcfgbuilder: Size of a code block -> SingleStatement 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=5000;interpolation-heuristic=LOWLEXORDER;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=5000;interpolation-heuristic=LOWLEXORDER;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=5000;interpolation-heuristic=LOWLEXORDER;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=5000;interpolation-heuristic=LOWLEXORDER;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=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:20:22,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:20:22,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:20:22,732 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:20:22,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:20:22,735 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:20:22,736 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_productSimulator.cil.c [2020-09-24 21:20:22,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69a3bbf39/40d5406ead7a4c05a8186c783f57b57d/FLAG07127adea [2020-09-24 21:20:23,450 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:20:23,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_productSimulator.cil.c [2020-09-24 21:20:23,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69a3bbf39/40d5406ead7a4c05a8186c783f57b57d/FLAG07127adea [2020-09-24 21:20:23,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69a3bbf39/40d5406ead7a4c05a8186c783f57b57d [2020-09-24 21:20:23,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:20:23,742 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:20:23,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:20:23,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:20:23,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:20:23,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:23" (1/1) ... [2020-09-24 21:20:23,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@823e3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:23, skipping insertion in model container [2020-09-24 21:20:23,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:23" (1/1) ... [2020-09-24 21:20:23,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:20:23,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:20:24,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:20:24,370 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:20:24,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:20:24,511 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:20:24,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:24 WrapperNode [2020-09-24 21:20:24,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:20:24,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:20:24,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:20:24,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:20:24,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:24" (1/1) ... [2020-09-24 21:20:24,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:24" (1/1) ... [2020-09-24 21:20:24,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:24" (1/1) ... [2020-09-24 21:20:24,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:24" (1/1) ... [2020-09-24 21:20:24,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:24" (1/1) ... [2020-09-24 21:20:24,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:24" (1/1) ... [2020-09-24 21:20:24,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:24" (1/1) ... [2020-09-24 21:20:24,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:20:24,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:20:24,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:20:24,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:20:24,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:20:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:20:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:20:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:20:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:20:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:20:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:20:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:20:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:20:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:20:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:20:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:20:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:20:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-09-24 21:20:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-09-24 21:20:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-09-24 21:20:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-09-24 21:20:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-09-24 21:20:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-09-24 21:20:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:20:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-09-24 21:20:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-09-24 21:20:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:20:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:20:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:20:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:20:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:20:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:20:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:20:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:20:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:20:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:20:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:20:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:20:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:20:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:20:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:20:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:20:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:20:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:20:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:20:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:20:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:20:24,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:20:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:20:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:20:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:20:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:20:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:20:24,721 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:20:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:20:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:20:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:20:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:20:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:20:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:20:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:20:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:20:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:20:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:20:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:20:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:20:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:20:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:20:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:20:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:20:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:20:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:20:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:20:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:20:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:20:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-09-24 21:20:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:20:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-09-24 21:20:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-09-24 21:20:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:20:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-09-24 21:20:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-09-24 21:20:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:20:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-09-24 21:20:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-09-24 21:20:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-09-24 21:20:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:20:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:20:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:20:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:20:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:20:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:20:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:20:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:20:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:20:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:20:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:20:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:20:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:20:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:20:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:20:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:20:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:20:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:20:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:20:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:20:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:20:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:20:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:20:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:20:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:20:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:20:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:20:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:20:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:20:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:20:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:20:25,925 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:20:25,925 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:20:25,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:25 BoogieIcfgContainer [2020-09-24 21:20:25,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:20:25,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:20:25,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:20:25,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:20:25,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:20:23" (1/3) ... [2020-09-24 21:20:25,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82fda49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:25, skipping insertion in model container [2020-09-24 21:20:25,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:24" (2/3) ... [2020-09-24 21:20:25,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82fda49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:25, skipping insertion in model container [2020-09-24 21:20:25,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:25" (3/3) ... [2020-09-24 21:20:25,944 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_productSimulator.cil.c [2020-09-24 21:20:25,956 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:20:25,967 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:20:25,990 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:20:26,028 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:20:26,029 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:20:26,029 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:20:26,029 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:20:26,030 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:20:26,030 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:20:26,030 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:20:26,030 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:20:26,064 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states. [2020-09-24 21:20:26,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 21:20:26,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:26,091 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:26,091 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:26,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:26,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1714706327, now seen corresponding path program 1 times [2020-09-24 21:20:26,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:26,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685058730] [2020-09-24 21:20:26,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:26,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:27,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:28,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:29,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:30,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:31,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:31,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-09-24 21:20:31,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:20:31,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 21:20:31,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:31,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:20:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-24 21:20:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-24 21:20:31,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:20:32,087 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 21:20:32,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-24 21:20:32,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-09-24 21:20:32,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:32,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-24 21:20:32,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:32,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 21:20:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:32,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:20:32,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:32,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:32,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-24 21:20:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:20:32,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 21:20:32,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 21:20:32,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:32,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:20:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:32,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:32,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:32,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:32,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 21:20:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:32,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:20:32,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:32,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:32,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:20:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:32,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:32,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:32,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:32,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:32,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 21:20:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:32,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:32,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:32,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:32,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:32,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 21:20:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:32,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:32,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:32,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 21:20:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:32,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:32,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:32,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:32,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 21:20:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:32,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:32,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:32,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:32,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 21:20:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:32,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:32,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:32,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:32,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:32,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:32,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:32,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:32,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:32,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:32,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:32,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 21:20:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:33,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:33,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:33,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:33,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:33,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:33,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:33,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 21:20:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:33,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:33,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:33,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:20:33,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:33,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:33,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 21:20:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:33,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:33,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:33,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:33,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:33,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:33,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:33,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:33,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:33,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:33,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:33,141 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 21:20:33,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685058730] [2020-09-24 21:20:33,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:33,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:20:33,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146786488] [2020-09-24 21:20:33,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:20:33,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:33,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:20:33,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:20:33,175 INFO L87 Difference]: Start difference. First operand 424 states. Second operand 11 states. [2020-09-24 21:20:34,052 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 21:20:36,003 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-09-24 21:20:36,477 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-09-24 21:20:37,090 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-09-24 21:20:37,628 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-24 21:20:38,128 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-09-24 21:20:39,354 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-24 21:20:39,872 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-09-24 21:20:40,676 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-09-24 21:20:44,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:44,019 INFO L93 Difference]: Finished difference Result 936 states and 1151 transitions. [2020-09-24 21:20:44,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 21:20:44,022 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 230 [2020-09-24 21:20:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:44,048 INFO L225 Difference]: With dead ends: 936 [2020-09-24 21:20:44,048 INFO L226 Difference]: Without dead ends: 667 [2020-09-24 21:20:44,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2020-09-24 21:20:44,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2020-09-24 21:20:44,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 561. [2020-09-24 21:20:44,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-09-24 21:20:44,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 645 transitions. [2020-09-24 21:20:44,234 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 645 transitions. Word has length 230 [2020-09-24 21:20:44,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:44,236 INFO L479 AbstractCegarLoop]: Abstraction has 561 states and 645 transitions. [2020-09-24 21:20:44,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:20:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 645 transitions. [2020-09-24 21:20:44,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-24 21:20:44,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:44,246 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:44,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:20:44,246 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:44,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:44,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1720470431, now seen corresponding path program 1 times [2020-09-24 21:20:44,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:44,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985651528] [2020-09-24 21:20:44,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:44,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:45,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:45,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:49,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:49,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-09-24 21:20:49,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:20:49,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:20:49,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:20:49,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 21:20:49,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-09-24 21:20:49,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:20:49,711 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 21:20:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:49,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-24 21:20:50,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-24 21:20:50,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-24 21:20:50,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:20:50,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 21:20:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:50,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:50,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:50,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-24 21:20:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:20:50,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 21:20:50,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:50,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 21:20:50,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:20:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:50,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:50,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:50,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:50,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 21:20:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:50,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:50,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:50,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:50,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:50,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:20:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:50,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:50,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:50,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:50,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:20:50,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 21:20:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:50,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:50,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:50,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 21:20:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:50,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:50,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:50,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 21:20:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:20:50,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:50,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:50,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:50,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 21:20:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:50,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:50,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:50,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:50,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 21:20:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:50,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:20:50,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:50,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:50,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 21:20:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:50,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:50,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:50,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:50,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 21:20:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:20:50,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:20:50,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:50,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:50,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:20:50,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 21:20:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:50,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:50,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:50,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-24 21:20:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:50,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:50,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:50,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:50,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:50,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:50,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:50,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:50,426 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 21:20:50,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985651528] [2020-09-24 21:20:50,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:50,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:20:50,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873975615] [2020-09-24 21:20:50,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:20:50,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:50,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:20:50,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:20:50,433 INFO L87 Difference]: Start difference. First operand 561 states and 645 transitions. Second operand 8 states. [2020-09-24 21:20:51,177 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-24 21:20:56,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:56,189 INFO L93 Difference]: Finished difference Result 1565 states and 1905 transitions. [2020-09-24 21:20:56,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 21:20:56,189 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 246 [2020-09-24 21:20:56,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:56,203 INFO L225 Difference]: With dead ends: 1565 [2020-09-24 21:20:56,203 INFO L226 Difference]: Without dead ends: 1161 [2020-09-24 21:20:56,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-09-24 21:20:56,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2020-09-24 21:20:56,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 948. [2020-09-24 21:20:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 948 states. [2020-09-24 21:20:56,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1112 transitions. [2020-09-24 21:20:56,424 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1112 transitions. Word has length 246 [2020-09-24 21:20:56,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:56,425 INFO L479 AbstractCegarLoop]: Abstraction has 948 states and 1112 transitions. [2020-09-24 21:20:56,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:20:56,425 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1112 transitions. [2020-09-24 21:20:56,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-24 21:20:56,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:56,433 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:56,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:20:56,433 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:56,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:56,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1550661076, now seen corresponding path program 1 times [2020-09-24 21:20:56,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:56,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214893315] [2020-09-24 21:20:56,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:56,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:56,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:57,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:58,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:01,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:01,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-09-24 21:21:01,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:21:01,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-24 21:21:01,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:01,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:21:01,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-24 21:21:01,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-09-24 21:21:01,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:21:02,037 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 21:21:02,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:21:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-24 21:21:02,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-24 21:21:02,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-24 21:21:02,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 21:21:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:21:02,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:21:02,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:02,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:21:02,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-24 21:21:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:21:02,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 21:21:02,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:02,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 21:21:02,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:21:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:21:02,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:21:02,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:02,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:02,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 21:21:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:21:02,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:21:02,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:02,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:02,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:21:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:21:02,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:21:02,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:02,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:02,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 21:21:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:21:02,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:21:02,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:02,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:02,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 21:21:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:21:02,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:21:02,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:02,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-24 21:21:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:21:02,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:21:02,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:02,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 21:21:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:02,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:21:02,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:02,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:21:02,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 21:21:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:21:02,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:21:02,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:21:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 21:21:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:21:02,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:21:02,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:02,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:21:02,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 21:21:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:21:02,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:21:02,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:21:02,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:21:02,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 21:21:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:21:02,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:21:02,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:21:02,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:21:02,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:21:02,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:21:02,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-09-24 21:21:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:02,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:21:02,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:21:02,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:02,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-09-24 21:21:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:02,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:02,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:02,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:02,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:02,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:21:02,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:21:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:21:02,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:03,075 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-24 21:21:03,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214893315] [2020-09-24 21:21:03,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:21:03,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 21:21:03,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5163669] [2020-09-24 21:21:03,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 21:21:03,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:21:03,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 21:21:03,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:21:03,080 INFO L87 Difference]: Start difference. First operand 948 states and 1112 transitions. Second operand 14 states. [2020-09-24 21:21:03,965 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-24 21:21:06,690 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-09-24 21:21:07,056 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-09-24 21:21:07,540 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-09-24 21:21:08,010 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-09-24 21:21:08,416 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-09-24 21:21:09,799 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-24 21:21:10,129 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-09-24 21:21:10,661 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-24 21:21:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:21:14,814 INFO L93 Difference]: Finished difference Result 2734 states and 3628 transitions. [2020-09-24 21:21:14,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-24 21:21:14,827 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 255 [2020-09-24 21:21:14,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:21:14,841 INFO L225 Difference]: With dead ends: 2734 [2020-09-24 21:21:14,841 INFO L226 Difference]: Without dead ends: 1943 [2020-09-24 21:21:14,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=645, Invalid=1805, Unknown=0, NotChecked=0, Total=2450 [2020-09-24 21:21:14,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states.