/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:20:37,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:20:37,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:20:37,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:20:37,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:20:37,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:20:37,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:20:37,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:20:37,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:20:37,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:20:37,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:20:37,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:20:37,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:20:37,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:20:37,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:20:37,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:20:37,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:20:37,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:20:37,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:20:37,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:20:37,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:20:37,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:20:37,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:20:37,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:20:37,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:20:37,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:20:37,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:20:37,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:20:37,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:20:37,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:20:37,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:20:37,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:20:37,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:20:37,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:20:37,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:20:37,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:20:37,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:20:37,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:20:37,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:20:37,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:20:37,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:20:37,257 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 [2020-09-25 06:20:37,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:20:37,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:20:37,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:20:37,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:20:37,293 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:20:37,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:20:37,294 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:20:37,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:20:37,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:20:37,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:20:37,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:20:37,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:20:37,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:20:37,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:20:37,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:20:37,297 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:20:37,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:20:37,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:20:37,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:20:37,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:20:37,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:20:37,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:20:37,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:20:37,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:20:37,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:20:37,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:20:37,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:20:37,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:20:37,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:20:37,300 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:20:37,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:20:37,775 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:20:37,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:20:37,781 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:20:37,782 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:20:37,783 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product28.cil.c [2020-09-25 06:20:37,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2d8f4d03/ba015dbc7c0340d98bcbb4c60e4ea9c8/FLAGea9858f8a [2020-09-25 06:20:38,510 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:20:38,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product28.cil.c [2020-09-25 06:20:38,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2d8f4d03/ba015dbc7c0340d98bcbb4c60e4ea9c8/FLAGea9858f8a [2020-09-25 06:20:38,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2d8f4d03/ba015dbc7c0340d98bcbb4c60e4ea9c8 [2020-09-25 06:20:38,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:20:38,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:20:38,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:20:38,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:20:38,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:20:38,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:20:38" (1/1) ... [2020-09-25 06:20:38,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653a9eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:38, skipping insertion in model container [2020-09-25 06:20:38,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:20:38" (1/1) ... [2020-09-25 06:20:38,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:20:38,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:20:39,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:20:39,372 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:20:39,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:20:39,559 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:20:39,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:39 WrapperNode [2020-09-25 06:20:39,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:20:39,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:20:39,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:20:39,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:20:39,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:39" (1/1) ... [2020-09-25 06:20:39,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:39" (1/1) ... [2020-09-25 06:20:39,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:39" (1/1) ... [2020-09-25 06:20:39,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:39" (1/1) ... [2020-09-25 06:20:39,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:39" (1/1) ... [2020-09-25 06:20:39,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:39" (1/1) ... [2020-09-25 06:20:39,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:39" (1/1) ... [2020-09-25 06:20:39,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:20:39,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:20:39,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:20:39,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:20:39,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:39" (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 [2020-09-25 06:20:39,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:20:39,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:20:39,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:20:39,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:20:39,761 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:20:39,761 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:20:39,761 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:20:39,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:20:39,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:20:39,762 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:20:39,762 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:20:39,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:20:39,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:20:39,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:20:39,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:20:39,763 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:20:39,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:20:39,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:20:39,763 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:20:39,764 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:20:39,765 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:20:39,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:20:39,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:20:39,765 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:20:39,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:20:39,765 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:20:39,766 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:20:39,766 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:20:39,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:20:39,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:20:39,766 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:20:39,766 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:20:39,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:20:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:20:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:20:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:20:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:20:39,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:20:39,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:20:39,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:20:39,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:20:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:20:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:20:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:20:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:20:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:20:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:20:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:20:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:20:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:20:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:20:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:20:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:20:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:20:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:20:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:20:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:20:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:20:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:20:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:20:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:20:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:20:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:20:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:20:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:20:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:20:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:20:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:20:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:20:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:20:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:20:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:20:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:20:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:20:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:20:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:20:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:20:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:20:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:20:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:20:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:20:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:20:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:20:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:20:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:20:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:20:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:20:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:20:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:20:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:20:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:20:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:20:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:20:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:20:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:20:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:20:40,987 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:20:40,988 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:20:40,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:20:40 BoogieIcfgContainer [2020-09-25 06:20:40,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:20:40,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:20:40,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:20:41,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:20:41,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:20:38" (1/3) ... [2020-09-25 06:20:41,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2083891d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:20:41, skipping insertion in model container [2020-09-25 06:20:41,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:39" (2/3) ... [2020-09-25 06:20:41,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2083891d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:20:41, skipping insertion in model container [2020-09-25 06:20:41,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:20:40" (3/3) ... [2020-09-25 06:20:41,005 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product28.cil.c [2020-09-25 06:20:41,017 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:20:41,029 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:20:41,052 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:20:41,086 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:20:41,087 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:20:41,087 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:20:41,087 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:20:41,087 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:20:41,087 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:20:41,087 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:20:41,088 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:20:41,117 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 06:20:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:20:41,135 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:41,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:20:41,137 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:41,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:41,146 INFO L82 PathProgramCache]: Analyzing trace with hash 2008725575, now seen corresponding path program 1 times [2020-09-25 06:20:41,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:41,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957078594] [2020-09-25 06:20:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:41,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:41,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:43,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:44,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:44,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:46,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:46,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:46,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:20:46,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:20:46,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:20:46,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:46,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:46,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:46,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:20:46,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:46,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 06:20:47,065 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:47,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:47,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:47,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:47,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:47,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 06:20:47,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:47,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:47,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:47,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:47,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:47,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:47,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:47,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:47,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:47,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:47,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:47,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:47,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:47,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:47,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:47,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:47,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:47,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:47,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:47,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:47,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:47,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:47,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:47,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:47,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:47,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:47,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:20:47,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:47,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:47,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:47,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:47,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:47,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:47,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:47,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:47,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:47,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:47,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:47,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:47,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:47,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:47,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:47,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:47,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:20:47,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:47,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:47,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:47,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:47,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:47,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:47,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:47,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:47,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:47,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:47,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:47,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:20:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:47,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:47,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:47,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:47,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:47,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:47,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:47,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:47,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:47,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:47,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:47,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:20:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:47,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:47,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:47,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:47,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:47,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:47,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:47,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:47,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:20:47,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957078594] [2020-09-25 06:20:47,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:47,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:20:47,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638084768] [2020-09-25 06:20:47,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:20:47,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:47,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:20:47,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:20:47,485 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 4 states. [2020-09-25 06:20:49,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:49,267 INFO L93 Difference]: Finished difference Result 451 states and 537 transitions. [2020-09-25 06:20:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:20:49,271 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:20:49,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:49,300 INFO L225 Difference]: With dead ends: 451 [2020-09-25 06:20:49,301 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 06:20:49,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:20:49,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 06:20:49,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 243. [2020-09-25 06:20:49,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 06:20:49,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 263 transitions. [2020-09-25 06:20:49,506 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 263 transitions. Word has length 148 [2020-09-25 06:20:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:49,509 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 263 transitions. [2020-09-25 06:20:49,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:20:49,510 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 263 transitions. [2020-09-25 06:20:49,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:20:49,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:49,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:20:49,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:20:49,522 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:49,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:49,523 INFO L82 PathProgramCache]: Analyzing trace with hash -963794546, now seen corresponding path program 1 times [2020-09-25 06:20:49,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:49,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353320413] [2020-09-25 06:20:49,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:49,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:49,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:51,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:52,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:53,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:54,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:54,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:20:54,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:20:54,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 06:20:54,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:54,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:54,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:54,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:20:54,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:20:54,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:54,926 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:54,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:54,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:55,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:55,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:55,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 06:20:55,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:55,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:55,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:55,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:55,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:55,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:55,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:55,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:55,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:55,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:55,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:55,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:55,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:55,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:55,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:55,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:55,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:55,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:55,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:55,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:55,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:55,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:55,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:55,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:55,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:55,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:55,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:55,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:55,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:55,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:55,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:55,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:55,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:55,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:55,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:55,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:55,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:55,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:55,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:55,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:55,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:55,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:55,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:55,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:55,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:55,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:55,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:20:55,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:20:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:55,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:55,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:55,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:55,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:55,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:55,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:55,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:55,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:55,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:55,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:55,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:20:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:55,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:55,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:55,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:55,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:55,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:55,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:55,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:55,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:20:55,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353320413] [2020-09-25 06:20:55,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:55,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:20:55,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864477627] [2020-09-25 06:20:55,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:20:55,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:55,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:20:55,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:20:55,219 INFO L87 Difference]: Start difference. First operand 243 states and 263 transitions. Second operand 5 states. [2020-09-25 06:20:55,944 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:20:56,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:56,972 INFO L93 Difference]: Finished difference Result 370 states and 420 transitions. [2020-09-25 06:20:56,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:20:56,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:20:56,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:56,977 INFO L225 Difference]: With dead ends: 370 [2020-09-25 06:20:56,977 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 06:20:56,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:20:56,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 06:20:57,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 233. [2020-09-25 06:20:57,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-25 06:20:57,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 250 transitions. [2020-09-25 06:20:57,025 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 250 transitions. Word has length 149 [2020-09-25 06:20:57,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:57,026 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 250 transitions. [2020-09-25 06:20:57,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:20:57,026 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 250 transitions. [2020-09-25 06:20:57,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:20:57,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:57,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:20:57,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:20:57,029 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:57,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:57,029 INFO L82 PathProgramCache]: Analyzing trace with hash 886671675, now seen corresponding path program 1 times [2020-09-25 06:20:57,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:57,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075867422] [2020-09-25 06:20:57,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:58,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:58,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:59,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:02,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 06:21:02,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:02,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 06:21:02,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:02,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:02,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:02,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:21:02,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:21:02,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:02,465 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:02,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:02,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:02,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:02,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:02,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 06:21:02,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:02,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:02,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:02,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:02,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:02,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:02,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:02,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:02,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:02,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:02,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:02,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:02,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:02,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:02,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:02,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:02,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:02,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:02,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:02,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:02,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:02,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:02,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:02,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:02,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:02,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:02,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:21:02,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:02,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:02,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:02,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:02,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:02,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:02,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:02,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:02,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:02,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:02,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:21:02,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:02,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:02,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:02,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:02,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:02,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:02,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:02,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:02,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:02,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:02,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:02,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:02,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:02,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:02,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:21:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:02,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:02,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:02,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:02,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:02,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:02,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:02,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:02,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:02,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:21:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:02,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:02,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:02,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:02,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:21:02,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:02,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:02,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:21:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:02,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:02,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:02,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:02,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:02,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:02,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:02,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:21:02,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075867422] [2020-09-25 06:21:02,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:02,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:21:02,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959460667] [2020-09-25 06:21:02,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:21:02,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:02,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:21:02,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:21:02,764 INFO L87 Difference]: Start difference. First operand 233 states and 250 transitions. Second operand 6 states. [2020-09-25 06:21:03,316 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:05,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:05,183 INFO L93 Difference]: Finished difference Result 549 states and 644 transitions. [2020-09-25 06:21:05,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:21:05,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 06:21:05,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:05,190 INFO L225 Difference]: With dead ends: 549 [2020-09-25 06:21:05,190 INFO L226 Difference]: Without dead ends: 431 [2020-09-25 06:21:05,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:21:05,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-09-25 06:21:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 341. [2020-09-25 06:21:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-25 06:21:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 376 transitions. [2020-09-25 06:21:05,253 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 376 transitions. Word has length 162 [2020-09-25 06:21:05,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:05,254 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 376 transitions. [2020-09-25 06:21:05,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:21:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 376 transitions. [2020-09-25 06:21:05,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:21:05,256 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:05,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:05,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:21:05,257 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:05,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:05,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1756833962, now seen corresponding path program 1 times [2020-09-25 06:21:05,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:05,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381131064] [2020-09-25 06:21:05,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:06,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:06,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:07,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:08,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:10,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:21:10,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:10,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:21:10,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:10,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:21:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:21:10,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:10,695 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:10,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:10,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:10,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:10,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:10,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 06:21:10,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:10,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:10,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:10,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:10,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:10,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:10,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:10,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:10,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:10,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:10,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:10,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:10,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:10,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:10,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:10,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:10,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:10,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:10,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:10,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:10,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:10,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:10,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:10,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:10,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:10,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:10,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:10,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:10,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:10,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:10,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:10,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:10,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:10,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:10,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:10,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:10,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:10,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:10,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:10,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:10,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:10,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:10,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:10,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:10,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:10,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:10,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:10,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:10,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:10,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:10,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:10,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:10,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:21:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:10,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:10,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:21:10,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:10,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:21:10,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:10,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:21:10,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:10,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:21:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:10,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:10,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:10,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:10,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:10,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:10,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:21:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:10,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 06:21:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:10,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:10,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:10,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:10,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:10,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:10,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:21:10,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:21:11,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381131064] [2020-09-25 06:21:11,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:11,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:21:11,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582871758] [2020-09-25 06:21:11,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:21:11,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:11,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:21:11,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:21:11,023 INFO L87 Difference]: Start difference. First operand 341 states and 376 transitions. Second operand 6 states. [2020-09-25 06:21:11,574 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:13,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:13,843 INFO L93 Difference]: Finished difference Result 768 states and 952 transitions. [2020-09-25 06:21:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:21:13,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 06:21:13,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:13,853 INFO L225 Difference]: With dead ends: 768 [2020-09-25 06:21:13,853 INFO L226 Difference]: Without dead ends: 765 [2020-09-25 06:21:13,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:21:13,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-09-25 06:21:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 570. [2020-09-25 06:21:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-09-25 06:21:13,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 643 transitions. [2020-09-25 06:21:13,990 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 643 transitions. Word has length 167 [2020-09-25 06:21:13,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:13,991 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 643 transitions. [2020-09-25 06:21:13,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:21:13,991 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 643 transitions. [2020-09-25 06:21:13,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 06:21:13,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:13,996 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:13,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:21:13,996 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:13,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:13,996 INFO L82 PathProgramCache]: Analyzing trace with hash -964297050, now seen corresponding path program 1 times [2020-09-25 06:21:13,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:13,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568451926] [2020-09-25 06:21:13,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:14,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:17,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 06:21:19,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:19,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 06:21:19,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 06:21:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:21:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:19,379 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:19,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:19,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 06:21:19,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:19,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:19,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:19,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:19,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:19,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:19,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:19,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:19,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:19,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:19,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:19,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:19,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:19,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:19,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:19,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:19,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:19,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:19,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:19,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:21:19,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:19,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:19,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:19,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:19,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:19,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:19,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:19,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:19,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:19,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:19,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:21:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:21:19,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:19,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:19,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:19,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:19,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:19,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:21:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:21:19,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:21:19,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 06:21:19,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:19,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:21:19,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 06:21:19,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:19,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:21:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:21:19,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 06:21:19,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:21:19,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:19,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 06:21:19,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:19,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:21:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:19,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:19,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:19,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:19,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:21:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:19,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:19,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:21:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:21:19,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:19,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 06:21:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:19,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:19,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:19,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:19,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 06:21:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:19,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:19,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:19,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:19,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:19,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:19,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:19,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:19,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:19,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:19,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:19,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 06:21:19,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568451926] [2020-09-25 06:21:19,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:21:19,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 06:21:19,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108445136] [2020-09-25 06:21:19,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 06:21:19,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:19,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 06:21:19,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:21:19,972 INFO L87 Difference]: Start difference. First operand 570 states and 643 transitions. Second operand 14 states. [2020-09-25 06:21:20,633 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:22,109 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:21:22,444 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:21:22,812 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:21:23,160 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:21:23,502 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:21:23,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:23,999 INFO L93 Difference]: Finished difference Result 804 states and 967 transitions. [2020-09-25 06:21:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 06:21:24,000 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 217 [2020-09-25 06:21:24,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:24,001 INFO L225 Difference]: With dead ends: 804 [2020-09-25 06:21:24,001 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:21:24,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=229, Invalid=641, Unknown=0, NotChecked=0, Total=870 [2020-09-25 06:21:24,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:21:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:21:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:21:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:21:24,006 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2020-09-25 06:21:24,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:24,006 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:21:24,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 06:21:24,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:21:24,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:21:24,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:21:24,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:21:24,205 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:24,385 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:21:24,554 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:24,719 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:21:24,892 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:25,060 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:25,223 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:25,711 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 204 [2020-09-25 06:21:26,026 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 06:21:26,326 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 06:21:26,627 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 06:21:26,926 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 06:21:27,224 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 06:21:27,383 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:27,531 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:27,689 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:21:27,846 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192