/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=1.0 --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_spec4_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:45:42,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:45:42,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:45:42,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:45:42,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:45:42,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:45:42,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:45:42,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:45:42,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:45:42,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:45:42,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:45:42,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:45:42,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:45:42,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:45:42,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:45:42,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:45:42,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:45:42,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:45:42,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:45:42,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:45:42,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:45:42,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:45:42,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:45:42,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:45:42,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:45:42,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:45:42,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:45:42,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:45:42,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:45:42,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:45:42,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:45:42,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:45:42,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:45:42,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:45:42,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:45:42,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:45:42,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:45:42,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:45:42,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:45:42,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:45:42,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:45:42,735 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 08:45:42,780 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:45:42,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:45:42,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:45:42,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:45:42,782 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:45:42,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:45:42,783 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:45:42,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:45:42,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:45:42,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:45:42,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:45:42,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:45:42,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:45:42,786 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:45:42,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:45:42,786 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:45:42,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:45:42,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:45:42,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:45:42,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:45:42,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:45:42,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:45:42,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:45:42,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:45:42,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:45:42,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:45:42,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:45:42,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:45:42,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:45:42,789 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:45:43,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:45:43,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:45:43,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:45:43,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:45:43,296 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:45:43,297 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product44.cil.c [2020-09-25 08:45:43,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60aa62be6/f7982213517a442aab3e849384d7565e/FLAGeac22177f [2020-09-25 08:45:44,020 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:45:44,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product44.cil.c [2020-09-25 08:45:44,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60aa62be6/f7982213517a442aab3e849384d7565e/FLAGeac22177f [2020-09-25 08:45:44,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60aa62be6/f7982213517a442aab3e849384d7565e [2020-09-25 08:45:44,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:45:44,297 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:45:44,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:45:44,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:45:44,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:45:44,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:45:44" (1/1) ... [2020-09-25 08:45:44,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44, skipping insertion in model container [2020-09-25 08:45:44,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:45:44" (1/1) ... [2020-09-25 08:45:44,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:45:44,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:45:44,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:45:44,843 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:45:44,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:45:44,979 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:45:44,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44 WrapperNode [2020-09-25 08:45:44,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:45:44,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:45:44,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:45:44,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:45:44,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44" (1/1) ... [2020-09-25 08:45:44,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44" (1/1) ... [2020-09-25 08:45:45,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44" (1/1) ... [2020-09-25 08:45:45,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44" (1/1) ... [2020-09-25 08:45:45,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44" (1/1) ... [2020-09-25 08:45:45,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44" (1/1) ... [2020-09-25 08:45:45,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44" (1/1) ... [2020-09-25 08:45:45,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:45:45,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:45:45,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:45:45,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:45:45,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44" (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 08:45:45,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:45:45,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:45:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:45:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 08:45:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:45:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:45:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:45:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:45:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:45:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:45:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:45:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:45:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:45:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:45:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:45:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:45:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:45:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:45:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 08:45:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:45:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:45:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:45:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:45:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:45:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:45:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:45:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:45:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:45:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:45:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:45:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:45:45,184 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:45:45,184 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:45:45,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:45:45,184 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:45:45,184 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:45:45,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:45:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:45:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:45:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:45:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:45:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:45:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:45:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:45:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:45:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:45:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 08:45:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:45:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:45:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:45:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:45:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:45:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:45:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:45:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:45:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:45:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:45:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:45:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:45:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:45:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:45:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:45:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:45:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:45:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:45:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:45:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:45:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:45:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:45:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:45:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:45:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:45:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:45:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:45:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:45:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:45:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:45:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:45:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:45:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:45:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:45:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:45:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:45:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:45:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:45:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 08:45:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:45:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:45:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:45:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:45:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:45:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:45:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:45:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:45:46,622 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:45:46,622 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:45:46,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:45:46 BoogieIcfgContainer [2020-09-25 08:45:46,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:45:46,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:45:46,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:45:46,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:45:46,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:45:44" (1/3) ... [2020-09-25 08:45:46,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbf352d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:45:46, skipping insertion in model container [2020-09-25 08:45:46,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:44" (2/3) ... [2020-09-25 08:45:46,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbf352d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:45:46, skipping insertion in model container [2020-09-25 08:45:46,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:45:46" (3/3) ... [2020-09-25 08:45:46,643 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2020-09-25 08:45:46,655 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:45:46,668 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:45:46,692 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:45:46,726 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:45:46,726 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:45:46,726 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:45:46,726 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:45:46,726 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:45:46,727 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:45:46,727 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:45:46,727 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:45:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-09-25 08:45:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 08:45:46,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:45:46,778 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] [2020-09-25 08:45:46,779 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:45:46,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:45:46,787 INFO L82 PathProgramCache]: Analyzing trace with hash 944307102, now seen corresponding path program 1 times [2020-09-25 08:45:46,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:45:46,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028134652] [2020-09-25 08:45:46,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:45:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:47,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:47,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:48,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:50,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 08:45:52,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:45:52,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 08:45:52,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:45:52,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 08:45:52,575 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:45:52,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:45:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:45:52,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 08:45:52,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:45:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:52,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:52,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:45:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:52,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:52,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:45:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:52,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:45:52,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:45:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:45:52,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:45:52,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:45:52,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:45:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:52,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:45:52,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:45:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:45:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:52,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:52,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:52,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:45:52,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:45:52,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:45:52,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:52,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:45:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:45:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:45:52,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:45:52,883 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 08:45:52,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028134652] [2020-09-25 08:45:52,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:45:52,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:45:52,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959530566] [2020-09-25 08:45:52,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:45:52,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:45:52,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:45:52,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:45:52,924 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 3 states. [2020-09-25 08:45:54,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:45:54,524 INFO L93 Difference]: Finished difference Result 494 states and 582 transitions. [2020-09-25 08:45:54,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:45:54,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 08:45:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:45:54,547 INFO L225 Difference]: With dead ends: 494 [2020-09-25 08:45:54,548 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 08:45:54,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:45:54,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 08:45:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 262. [2020-09-25 08:45:54,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 08:45:54,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 282 transitions. [2020-09-25 08:45:54,673 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 282 transitions. Word has length 142 [2020-09-25 08:45:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:45:54,674 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 282 transitions. [2020-09-25 08:45:54,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:45:54,674 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 282 transitions. [2020-09-25 08:45:54,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 08:45:54,686 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:45:54,686 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] [2020-09-25 08:45:54,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:45:54,687 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:45:54,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:45:54,688 INFO L82 PathProgramCache]: Analyzing trace with hash 990794439, now seen corresponding path program 1 times [2020-09-25 08:45:54,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:45:54,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620712276] [2020-09-25 08:45:54,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:45:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:45:54,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:54,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:56,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:57,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:58,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:45:59,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:45:59,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:45:59,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:45:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 08:45:59,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:45:59,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:45:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:45:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:45:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:45:59,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:00,122 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:46:00,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:46:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:00,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:00,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:00,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:46:00,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:00,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 08:46:00,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:00,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:00,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:00,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:00,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:00,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:00,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:46:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:00,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:00,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:00,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:00,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:00,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:00,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:00,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:00,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:00,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:00,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:00,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:46:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:00,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:00,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:00,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:00,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:00,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:00,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:00,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:00,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:00,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:00,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:00,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:00,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:46:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:00,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:00,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:00,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:00,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:00,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:46:00,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:00,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:00,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:00,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:00,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:00,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:00,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:46:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:00,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:00,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:00,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:00,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:00,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:00,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:00,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:00,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:00,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:46:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:00,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:00,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:00,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:00,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:00,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:00,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:00,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:00,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:00,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:00,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:46:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:00,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:00,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:00,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:00,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:00,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:00,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:00,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:00,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:00,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:46:00,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620712276] [2020-09-25 08:46:00,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:46:00,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:46:00,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765064946] [2020-09-25 08:46:00,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:46:00,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:46:00,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:46:00,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:46:00,357 INFO L87 Difference]: Start difference. First operand 262 states and 282 transitions. Second operand 4 states. [2020-09-25 08:46:00,971 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:46:01,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:46:01,951 INFO L93 Difference]: Finished difference Result 398 states and 443 transitions. [2020-09-25 08:46:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:46:01,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 08:46:01,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:46:01,961 INFO L225 Difference]: With dead ends: 398 [2020-09-25 08:46:01,961 INFO L226 Difference]: Without dead ends: 289 [2020-09-25 08:46:01,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:46:01,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-09-25 08:46:02,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 252. [2020-09-25 08:46:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-09-25 08:46:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 269 transitions. [2020-09-25 08:46:02,027 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 269 transitions. Word has length 143 [2020-09-25 08:46:02,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:46:02,027 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 269 transitions. [2020-09-25 08:46:02,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:46:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 269 transitions. [2020-09-25 08:46:02,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 08:46:02,030 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:46:02,031 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] [2020-09-25 08:46:02,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:46:02,031 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:46:02,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:46:02,031 INFO L82 PathProgramCache]: Analyzing trace with hash -844663911, now seen corresponding path program 1 times [2020-09-25 08:46:02,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:46:02,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69600904] [2020-09-25 08:46:02,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:46:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:02,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:02,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:03,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:05,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:07,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:07,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:46:07,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:46:07,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 08:46:07,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:07,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:46:07,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 08:46:07,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:46:07,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:07,495 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:46:07,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:46:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:07,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:07,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:07,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:46:07,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:07,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 08:46:07,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:07,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:07,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:07,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:07,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:07,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:07,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:46:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:07,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:07,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:07,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:07,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:07,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:07,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:07,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:07,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:07,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:07,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:07,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:07,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:46:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:07,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:07,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:07,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:07,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:07,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:07,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:07,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:07,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:07,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:07,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:07,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:07,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:46:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:07,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:07,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:07,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:07,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:07,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:46:07,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:07,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:07,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:07,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:07,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:46:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:07,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:07,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:07,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:07,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:07,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:07,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:07,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:07,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:07,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:46:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:07,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:07,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:07,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:46:07,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:07,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:46:07,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:07,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:46:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:07,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:46:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:46:07,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:46:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:07,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:07,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:07,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:07,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:07,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:07,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:07,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:07,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:07,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:07,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:07,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:46:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:07,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:07,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:07,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:07,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:07,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:07,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:07,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:07,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:07,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:07,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:07,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:07,773 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 08:46:07,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69600904] [2020-09-25 08:46:07,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:46:07,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:46:07,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289034468] [2020-09-25 08:46:07,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:46:07,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:46:07,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:46:07,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:46:07,779 INFO L87 Difference]: Start difference. First operand 252 states and 269 transitions. Second operand 5 states. [2020-09-25 08:46:08,233 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:46:09,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:46:09,998 INFO L93 Difference]: Finished difference Result 606 states and 692 transitions. [2020-09-25 08:46:10,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:46:10,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 08:46:10,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:46:10,006 INFO L225 Difference]: With dead ends: 606 [2020-09-25 08:46:10,006 INFO L226 Difference]: Without dead ends: 464 [2020-09-25 08:46:10,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 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 08:46:10,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-09-25 08:46:10,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 378. [2020-09-25 08:46:10,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-09-25 08:46:10,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 411 transitions. [2020-09-25 08:46:10,091 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 411 transitions. Word has length 156 [2020-09-25 08:46:10,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:46:10,092 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 411 transitions. [2020-09-25 08:46:10,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:46:10,092 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 411 transitions. [2020-09-25 08:46:10,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:46:10,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:46:10,095 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] [2020-09-25 08:46:10,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:46:10,095 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:46:10,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:46:10,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1137144832, now seen corresponding path program 1 times [2020-09-25 08:46:10,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:46:10,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325561055] [2020-09-25 08:46:10,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:46:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:10,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:11,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:11,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:13,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 08:46:15,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:46:15,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 08:46:15,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:46:15,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 08:46:15,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:46:15,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,490 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:46:15,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:46:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:46:15,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 08:46:15,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:15,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:46:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:15,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:15,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:46:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:15,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:15,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:46:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:15,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:15,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:46:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:15,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:15,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:46:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:46:15,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:46:15,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:46:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:46:15,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:46:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:15,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:15,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:46:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:46:15,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:15,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:46:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:15,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:46:15,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:46:15,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:46:15,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,771 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 08:46:15,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325561055] [2020-09-25 08:46:15,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:46:15,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:46:15,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045503715] [2020-09-25 08:46:15,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:46:15,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:46:15,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:46:15,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:46:15,775 INFO L87 Difference]: Start difference. First operand 378 states and 411 transitions. Second operand 9 states. [2020-09-25 08:46:16,458 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:46:17,842 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:46:18,202 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:46:18,584 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:46:18,865 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:46:19,185 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:46:19,951 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:46:20,247 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:46:20,602 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:46:21,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:46:21,309 INFO L93 Difference]: Finished difference Result 881 states and 1028 transitions. [2020-09-25 08:46:21,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:46:21,310 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 08:46:21,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:46:21,316 INFO L225 Difference]: With dead ends: 881 [2020-09-25 08:46:21,316 INFO L226 Difference]: Without dead ends: 613 [2020-09-25 08:46:21,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:46:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-09-25 08:46:21,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 544. [2020-09-25 08:46:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-09-25 08:46:21,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 610 transitions. [2020-09-25 08:46:21,395 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 610 transitions. Word has length 161 [2020-09-25 08:46:21,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:46:21,395 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 610 transitions. [2020-09-25 08:46:21,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:46:21,396 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 610 transitions. [2020-09-25 08:46:21,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 08:46:21,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:46:21,399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:46:21,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:46:21,400 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:46:21,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:46:21,400 INFO L82 PathProgramCache]: Analyzing trace with hash -87431938, now seen corresponding path program 1 times [2020-09-25 08:46:21,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:46:21,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007618835] [2020-09-25 08:46:21,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:46:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:21,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:21,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:26,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:26,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-25 08:46:26,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:46:26,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 08:46:26,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:26,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:26,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:46:26,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-25 08:46:26,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:46:26,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:26,793 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:46:26,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:46:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:26,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:26,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:26,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:46:26,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:26,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 08:46:26,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:26,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:26,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:26,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:46:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:26,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:26,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:26,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:26,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:26,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:26,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:26,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:26,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:46:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:26,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:26,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:26,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:26,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:26,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:26,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:26,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:26,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:26,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:46:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:26,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:26,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:26,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:26,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:26,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:26,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:26,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:26,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:26,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:26,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:26,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:26,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:46:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:26,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:26,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:26,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:26,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:26,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:26,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:26,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:26,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:26,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:26,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:26,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:26,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:46:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:26,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:26,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:26,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:46:26,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:26,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:26,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:26,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:26,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:26,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:26,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:26,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:26,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:46:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:27,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:27,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:27,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 08:46:27,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:27,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 08:46:27,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:27,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:46:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 08:46:27,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:46:27,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:27,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:46:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:27,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:27,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:27,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 08:46:27,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 08:46:27,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:27,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:46:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:46:27,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:27,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:46:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:27,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:27,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:27,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:46:27,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:27,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:46:27,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:27,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:27,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:27,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:27,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:27,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:27,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:46:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:27,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:27,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:27,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 08:46:27,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:27,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:46:27,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:27,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 08:46:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:27,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:27,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:46:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:27,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:27,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:27,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 08:46:27,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:27,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:27,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:27,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:27,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:27,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:46:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:27,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:27,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:27,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:27,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:27,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:27,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:27,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:27,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:27,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 08:46:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:27,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:27,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:27,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:46:27,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:27,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:27,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:27,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:27,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:27,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 08:46:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:27,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:27,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:27,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:27,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:27,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:27,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:27,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:27,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:27,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:27,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:27,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:27,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 08:46:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:27,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:27,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:27,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:27,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:27,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:27,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:27,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:27,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:27,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:27,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:27,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:27,290 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 08:46:27,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007618835] [2020-09-25 08:46:27,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:46:27,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:46:27,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739782619] [2020-09-25 08:46:27,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:46:27,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:46:27,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:46:27,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:46:27,292 INFO L87 Difference]: Start difference. First operand 544 states and 610 transitions. Second operand 10 states. [2020-09-25 08:46:28,772 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:46:29,086 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:46:29,421 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191