/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_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:21:31,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:21:31,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:21:31,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:21:31,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:21:31,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:21:31,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:21:31,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:21:31,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:21:31,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:21:31,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:21:31,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:21:31,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:21:31,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:21:31,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:21:31,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:21:31,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:21:31,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:21:31,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:21:31,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:21:31,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:21:31,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:21:31,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:21:31,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:21:31,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:21:31,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:21:31,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:21:31,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:21:31,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:21:31,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:21:31,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:21:31,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:21:31,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:21:31,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:21:31,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:21:31,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:21:31,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:21:31,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:21:31,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:21:31,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:21:31,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:21:31,786 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 06:21:31,828 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:21:31,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:21:31,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:21:31,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:21:31,832 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:21:31,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:21:31,832 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:21:31,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:21:31,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:21:31,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:21:31,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:21:31,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:21:31,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:21:31,835 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:21:31,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:21:31,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:21:31,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:21:31,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:21:31,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:21:31,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:21:31,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:21:31,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:21:31,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:21:31,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:21:31,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:21:31,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:21:31,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:21:31,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:21:31,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:21:31,838 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 06:21:32,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:21:32,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:21:32,377 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:21:32,379 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:21:32,380 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:21:32,381 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-09-25 06:21:32,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcecd4fdb/1904f365a01649f297b034dfbd3d4db6/FLAGa4f9f41f4 [2020-09-25 06:21:33,124 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:21:33,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-09-25 06:21:33,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcecd4fdb/1904f365a01649f297b034dfbd3d4db6/FLAGa4f9f41f4 [2020-09-25 06:21:33,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcecd4fdb/1904f365a01649f297b034dfbd3d4db6 [2020-09-25 06:21:33,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:21:33,409 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:21:33,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:21:33,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:21:33,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:21:33,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:21:33" (1/1) ... [2020-09-25 06:21:33,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:33, skipping insertion in model container [2020-09-25 06:21:33,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:21:33" (1/1) ... [2020-09-25 06:21:33,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:21:33,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:21:33,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:21:33,988 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:21:34,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:21:34,114 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:21:34,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34 WrapperNode [2020-09-25 06:21:34,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:21:34,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:21:34,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:21:34,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:21:34,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34" (1/1) ... [2020-09-25 06:21:34,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34" (1/1) ... [2020-09-25 06:21:34,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34" (1/1) ... [2020-09-25 06:21:34,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34" (1/1) ... [2020-09-25 06:21:34,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34" (1/1) ... [2020-09-25 06:21:34,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34" (1/1) ... [2020-09-25 06:21:34,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34" (1/1) ... [2020-09-25 06:21:34,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:21:34,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:21:34,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:21:34,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:21:34,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34" (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 06:21:34,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:21:34,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:21:34,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:21:34,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:21:34,301 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:21:34,301 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:21:34,301 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:21:34,302 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:21:34,302 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:21:34,302 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:21:34,302 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:21:34,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:21:34,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:21:34,303 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:21:34,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:21:34,303 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:21:34,303 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:21:34,304 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:21:34,304 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:21:34,304 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:21:34,304 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:21:34,305 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:21:34,305 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:21:34,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:21:34,307 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:21:34,308 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:21:34,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:21:34,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:21:34,308 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:21:34,308 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:21:34,309 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:21:34,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:21:34,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:21:34,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:21:34,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:21:34,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:21:34,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:21:34,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:21:34,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:21:34,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:21:34,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:21:34,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:21:34,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:21:34,311 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:21:34,311 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:21:34,311 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:21:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:21:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:21:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:21:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:21:34,312 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:21:34,313 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:21:34,313 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:21:34,313 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:21:34,313 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:21:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:21:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:21:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:21:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:21:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:21:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:21:34,315 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:21:34,315 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:21:34,315 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:21:34,315 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:21:34,315 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:21:34,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:21:34,315 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:21:34,316 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:21:34,316 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:21:34,317 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:21:34,318 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:21:34,318 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:21:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:21:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:21:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:21:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:21:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:21:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:21:34,320 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:21:34,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:21:34,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:21:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:21:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:21:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:21:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:21:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:21:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:21:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:21:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:21:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:21:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:21:34,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:21:34,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:21:34,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:21:34,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:21:35,639 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:21:35,640 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:21:35,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:21:35 BoogieIcfgContainer [2020-09-25 06:21:35,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:21:35,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:21:35,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:21:35,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:21:35,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:21:33" (1/3) ... [2020-09-25 06:21:35,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38093cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:21:35, skipping insertion in model container [2020-09-25 06:21:35,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:21:34" (2/3) ... [2020-09-25 06:21:35,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38093cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:21:35, skipping insertion in model container [2020-09-25 06:21:35,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:21:35" (3/3) ... [2020-09-25 06:21:35,665 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-09-25 06:21:35,680 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:21:35,695 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:21:35,721 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:21:35,762 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:21:35,762 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:21:35,762 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:21:35,762 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:21:35,762 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:21:35,763 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:21:35,763 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:21:35,764 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:21:35,811 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states. [2020-09-25 06:21:35,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:21:35,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:35,853 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 06:21:35,854 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:35,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:35,865 INFO L82 PathProgramCache]: Analyzing trace with hash -436184323, now seen corresponding path program 1 times [2020-09-25 06:21:35,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:35,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853304039] [2020-09-25 06:21:35,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:36,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:36,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:38,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:38,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:39,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:41,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:41,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:41,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:21:41,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:21:41,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 06:21:41,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:41,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:41,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:41,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:21:41,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:41,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:21:41,865 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:41,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:41,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:42,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:42,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:42,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:42,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 06:21:42,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:42,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:42,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:42,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:42,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:42,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:42,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:42,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:42,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:42,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:42,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:42,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:42,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:42,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:42,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:42,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:42,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:42,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:42,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:42,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:42,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:42,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:42,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:42,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:42,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:42,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:21:42,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:42,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:42,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:42,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:42,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:42,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:42,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:42,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:42,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:42,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:42,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:42,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:42,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:42,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:42,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:42,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:42,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:42,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:42,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:42,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:42,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:42,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:21:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:42,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:42,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:42,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:42,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:42,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:42,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:42,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:42,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:42,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:21:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:42,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:42,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:42,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:42,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:42,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:42,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:42,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:42,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:42,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:42,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:42,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:42,217 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 06:21:42,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853304039] [2020-09-25 06:21:42,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:42,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:21:42,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239758264] [2020-09-25 06:21:42,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:21:42,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:42,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:21:42,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:21:42,259 INFO L87 Difference]: Start difference. First operand 317 states. Second operand 4 states. [2020-09-25 06:21:43,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:43,784 INFO L93 Difference]: Finished difference Result 499 states and 589 transitions. [2020-09-25 06:21:43,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:21:43,788 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:21:43,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:43,823 INFO L225 Difference]: With dead ends: 499 [2020-09-25 06:21:43,823 INFO L226 Difference]: Without dead ends: 318 [2020-09-25 06:21:43,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:21:43,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-25 06:21:43,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 266. [2020-09-25 06:21:43,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-25 06:21:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 288 transitions. [2020-09-25 06:21:43,967 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 288 transitions. Word has length 148 [2020-09-25 06:21:43,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:43,968 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 288 transitions. [2020-09-25 06:21:43,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:21:43,968 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 288 transitions. [2020-09-25 06:21:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:21:43,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:43,974 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 06:21:43,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:21:43,974 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:43,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:43,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1204536532, now seen corresponding path program 1 times [2020-09-25 06:21:43,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:43,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281806474] [2020-09-25 06:21:43,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:44,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:44,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:45,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:46,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:47,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:48,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:49,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:21:49,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:21:49,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 06:21:49,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:49,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:21:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:21:49,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:49,365 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:49,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:49,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:49,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:49,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:49,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 06:21:49,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:49,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:49,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:49,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:49,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:49,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:49,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:49,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:49,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:49,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:49,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:49,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:49,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:49,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:49,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:49,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:49,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:49,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:49,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:49,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:49,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:49,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:49,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:49,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:49,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:49,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:49,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:21:49,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:49,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:49,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:49,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:49,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:49,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:49,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:49,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:49,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:49,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:49,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:49,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:49,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:49,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:49,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:49,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:49,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:49,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:49,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:49,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:49,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:49,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:49,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:49,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:21:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:49,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:49,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:49,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:49,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:49,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:49,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:49,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:49,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:49,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:49,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:49,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:21:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:49,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:49,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:49,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:49,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:49,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:49,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:49,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:49,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:49,646 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 06:21:49,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281806474] [2020-09-25 06:21:49,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:49,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:21:49,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119083938] [2020-09-25 06:21:49,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:21:49,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:49,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:21:49,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:21:49,653 INFO L87 Difference]: Start difference. First operand 266 states and 288 transitions. Second operand 5 states. [2020-09-25 06:21:50,389 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:21:51,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:51,514 INFO L93 Difference]: Finished difference Result 415 states and 470 transitions. [2020-09-25 06:21:51,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:21:51,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:21:51,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:51,518 INFO L225 Difference]: With dead ends: 415 [2020-09-25 06:21:51,519 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 06:21:51,521 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 06:21:51,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 06:21:51,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 256. [2020-09-25 06:21:51,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-09-25 06:21:51,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 275 transitions. [2020-09-25 06:21:51,571 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 275 transitions. Word has length 149 [2020-09-25 06:21:51,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:51,572 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 275 transitions. [2020-09-25 06:21:51,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:21:51,572 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 275 transitions. [2020-09-25 06:21:51,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:21:51,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:51,575 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 06:21:51,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:21:51,575 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:51,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:51,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1794035067, now seen corresponding path program 1 times [2020-09-25 06:21:51,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:51,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904452457] [2020-09-25 06:21:51,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:51,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:51,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:52,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:52,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:54,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:56,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:56,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 06:21:56,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:56,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 06:21:56,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:56,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:56,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:56,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:21:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:21:56,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,161 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:57,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:57,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:57,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:57,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 06:21:57,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:57,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:57,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:57,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:57,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:57,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:57,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:57,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:57,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:57,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:57,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:57,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:57,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:57,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:57,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:57,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:57,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:57,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:57,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:57,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:21:57,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:57,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:57,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:57,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:57,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:57,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:57,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:57,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:57,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:57,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:57,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:57,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:21:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:57,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:57,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:57,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:57,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:57,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:21:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:57,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:57,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:57,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:57,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:57,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:57,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:21:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:57,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:57,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:57,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:57,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:57,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:57,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:57,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:57,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:57,409 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 06:21:57,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904452457] [2020-09-25 06:21:57,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:57,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:21:57,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406593192] [2020-09-25 06:21:57,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:21:57,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:57,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:21:57,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:21:57,414 INFO L87 Difference]: Start difference. First operand 256 states and 275 transitions. Second operand 6 states. [2020-09-25 06:21:57,919 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:22:00,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:00,077 INFO L93 Difference]: Finished difference Result 622 states and 723 transitions. [2020-09-25 06:22:00,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:22:00,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 06:22:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:00,084 INFO L225 Difference]: With dead ends: 622 [2020-09-25 06:22:00,084 INFO L226 Difference]: Without dead ends: 481 [2020-09-25 06:22:00,086 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 06:22:00,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-09-25 06:22:00,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 381. [2020-09-25 06:22:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-25 06:22:00,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 418 transitions. [2020-09-25 06:22:00,156 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 418 transitions. Word has length 162 [2020-09-25 06:22:00,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:00,157 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 418 transitions. [2020-09-25 06:22:00,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:22:00,157 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 418 transitions. [2020-09-25 06:22:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:22:00,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:00,160 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 06:22:00,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:22:00,161 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:00,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:00,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1969407122, now seen corresponding path program 1 times [2020-09-25 06:22:00,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:00,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785703] [2020-09-25 06:22:00,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:00,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:01,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:02,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:04,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:22:05,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:22:05,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-09-25 06:22:05,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:22:05,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:22:05,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:22:05,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:05,664 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:05,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:22:05,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 06:22:05,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:22:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:05,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:05,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:22:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:05,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:05,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:22:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:05,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:22:05,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:22:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:05,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:05,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:05,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:22:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:05,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:05,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:05,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:22:05,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:22:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:22:05,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:05,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:22:05,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:22:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:05,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:22:05,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:05,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:22:05,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 06:22:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:05,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:05,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:05,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:05,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:05,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:22:05,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:05,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:22:05,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:05,987 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 06:22:05,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785703] [2020-09-25 06:22:05,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:22:05,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:22:05,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602400244] [2020-09-25 06:22:05,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:22:05,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:05,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:22:05,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:22:05,992 INFO L87 Difference]: Start difference. First operand 381 states and 418 transitions. Second operand 6 states. [2020-09-25 06:22:06,554 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:22:09,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:22:09,171 INFO L93 Difference]: Finished difference Result 855 states and 1042 transitions. [2020-09-25 06:22:09,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:22:09,172 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 06:22:09,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:22:09,179 INFO L225 Difference]: With dead ends: 855 [2020-09-25 06:22:09,179 INFO L226 Difference]: Without dead ends: 852 [2020-09-25 06:22:09,180 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 06:22:09,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2020-09-25 06:22:09,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 650. [2020-09-25 06:22:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-09-25 06:22:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 727 transitions. [2020-09-25 06:22:09,294 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 727 transitions. Word has length 167 [2020-09-25 06:22:09,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:22:09,295 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 727 transitions. [2020-09-25 06:22:09,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:22:09,295 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 727 transitions. [2020-09-25 06:22:09,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 06:22:09,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:22:09,299 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 06:22:09,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:22:09,300 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:22:09,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:22:09,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1379548956, now seen corresponding path program 1 times [2020-09-25 06:22:09,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:22:09,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942985303] [2020-09-25 06:22:09,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:22:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:09,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:09,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:09,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:09,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:12,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:14,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 06:22:14,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:22:14,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 06:22:14,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:14,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:14,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:22:14,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 06:22:14,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:22:14,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:14,768 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:22:14,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:22:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:14,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:14,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:22:14,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:14,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 06:22:14,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:14,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:14,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:14,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:14,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:14,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:14,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:22:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:14,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:14,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:14,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:14,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:14,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:14,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:14,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:14,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:14,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:14,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:14,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:22:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:14,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:14,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:14,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:14,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:14,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:14,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:14,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:14,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:14,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:14,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:14,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:22:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:14,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:14,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:14,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:14,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:14,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:14,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:14,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:14,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:14,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:14,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:22:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:14,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:14,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:22:14,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:14,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:14,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:14,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:22:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:14,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:14,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:22:14,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:14,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:22:14,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:14,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:14,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:14,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:22:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:14,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:14,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:14,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:22:14,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:14,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:22:14,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:14,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:14,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:22:14,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:14,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:22:14,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:14,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:22:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:14,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:22:15,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:22:15,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 06:22:15,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:22:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:22:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 06:22:15,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:22:15,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 06:22:15,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:22:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 06:22:15,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:22:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:15,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:15,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:22:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:15,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:22:15,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:22:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:22:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:22:15,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:22:15,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 06:22:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:15,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:15,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:15,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:15,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 06:22:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:22:15,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:22:15,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:22:15,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:22:15,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:22:15,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:22:15,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:22:15,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:22:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:22:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:22:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:22:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:22:15,364 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 06:22:15,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942985303] [2020-09-25 06:22:15,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:22:15,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 06:22:15,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189739129] [2020-09-25 06:22:15,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 06:22:15,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:22:15,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 06:22:15,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:22:15,368 INFO L87 Difference]: Start difference. First operand 650 states and 727 transitions. Second operand 14 states. [2020-09-25 06:22:15,962 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:22:17,584 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:22:17,944 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:22:18,347 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:22:18,694 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:22:19,019 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:22:20,164 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-25 06:22:20,967 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 195