/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:00:37,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:00:37,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:00:37,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:00:37,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:00:37,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:00:37,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:00:37,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:00:37,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:00:37,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:00:37,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:00:37,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:00:37,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:00:37,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:00:37,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:00:37,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:00:37,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:00:37,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:00:37,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:00:37,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:00:37,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:00:37,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:00:37,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:00:37,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:00:37,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:00:37,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:00:37,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:00:37,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:00:37,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:00:37,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:00:37,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:00:37,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:00:37,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:00:37,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:00:37,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:00:37,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:00:37,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:00:37,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:00:37,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:00:37,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:00:37,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:00:37,726 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 11:00:37,778 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:00:37,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:00:37,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:00:37,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:00:37,780 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:00:37,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:00:37,781 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:00:37,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:00:37,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:00:37,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:00:37,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:00:37,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:00:37,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:00:37,784 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:00:37,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:00:37,784 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:00:37,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:00:37,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:00:37,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:00:37,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:00:37,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:00:37,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:00:37,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:00:37,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:00:37,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:00:37,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:00:37,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:00:37,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:00:37,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:00:37,787 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:00:38,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:00:38,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:00:38,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:00:38,264 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:00:38,264 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:00:38,265 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-09-25 11:00:38,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55ada7d89/6eb106e8a7614bc7840b08c5b8eadacd/FLAGb48f1e7d9 [2020-09-25 11:00:38,965 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:00:38,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-09-25 11:00:38,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55ada7d89/6eb106e8a7614bc7840b08c5b8eadacd/FLAGb48f1e7d9 [2020-09-25 11:00:39,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55ada7d89/6eb106e8a7614bc7840b08c5b8eadacd [2020-09-25 11:00:39,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:00:39,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:00:39,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:00:39,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:00:39,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:00:39,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:00:39" (1/1) ... [2020-09-25 11:00:39,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39, skipping insertion in model container [2020-09-25 11:00:39,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:00:39" (1/1) ... [2020-09-25 11:00:39,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:00:39,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:00:39,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:00:39,834 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:00:39,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:00:39,986 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:00:39,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39 WrapperNode [2020-09-25 11:00:39,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:00:39,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:00:39,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:00:39,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:00:40,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39" (1/1) ... [2020-09-25 11:00:40,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39" (1/1) ... [2020-09-25 11:00:40,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39" (1/1) ... [2020-09-25 11:00:40,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39" (1/1) ... [2020-09-25 11:00:40,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39" (1/1) ... [2020-09-25 11:00:40,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39" (1/1) ... [2020-09-25 11:00:40,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39" (1/1) ... [2020-09-25 11:00:40,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:00:40,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:00:40,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:00:40,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:00:40,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:00:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:00:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:00:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:00:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:00:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:00:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:00:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:00:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:00:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:00:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 11:00:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:00:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:00:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:00:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:00:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:00:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:00:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:00:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 11:00:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 11:00:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:00:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:00:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:00:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:00:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:00:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:00:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:00:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:00:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:00:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:00:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:00:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:00:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:00:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:00:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:00:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:00:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:00:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:00:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:00:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 11:00:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 11:00:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 11:00:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:00:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:00:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:00:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:00:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:00:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:00:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:00:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:00:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:00:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:00:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:00:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:00:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:00:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:00:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:00:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:00:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:00:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:00:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:00:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:00:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:00:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:00:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:00:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:00:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 11:00:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:00:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:00:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:00:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:00:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:00:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 11:00:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 11:00:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:00:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:00:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:00:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:00:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:00:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:00:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:00:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:00:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:00:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:00:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:00:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:00:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:00:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:00:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 11:00:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:00:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:00:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 11:00:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:00:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 11:00:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:00:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:00:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:00:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:00:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:00:41,385 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:00:41,385 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:00:41,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:00:41 BoogieIcfgContainer [2020-09-25 11:00:41,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:00:41,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:00:41,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:00:41,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:00:41,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:00:39" (1/3) ... [2020-09-25 11:00:41,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e9f2bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:00:41, skipping insertion in model container [2020-09-25 11:00:41,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:00:39" (2/3) ... [2020-09-25 11:00:41,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e9f2bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:00:41, skipping insertion in model container [2020-09-25 11:00:41,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:00:41" (3/3) ... [2020-09-25 11:00:41,404 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-09-25 11:00:41,417 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:00:41,429 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:00:41,453 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:00:41,489 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:00:41,489 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:00:41,490 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:00:41,490 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:00:41,490 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:00:41,490 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:00:41,490 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:00:41,490 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:00:41,540 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-25 11:00:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 11:00:41,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:41,577 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 11:00:41,578 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:41,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:41,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1259360700, now seen corresponding path program 1 times [2020-09-25 11:00:41,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:41,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468587920] [2020-09-25 11:00:41,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:42,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:42,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:43,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:44,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:47,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:47,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 11:00:47,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:00:47,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 11:00:47,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:47,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:00:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:00:47,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 11:00:47,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 11:00:47,567 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:47,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:47,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:47,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:47,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:47,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:47,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-09-25 11:00:47,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:47,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:00:47,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:48,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:48,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:48,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:48,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:48,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:48,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:00:48,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:48,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:48,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:48,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:48,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:48,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:48,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:48,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:48,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:48,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:48,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:48,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:48,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:48,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:48,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:48,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:48,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:48,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:48,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:00:48,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:48,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:48,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:48,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:48,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:48,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:48,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:48,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:48,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:00:48,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:48,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:48,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:48,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:48,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:00:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:48,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:48,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:48,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:48,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:48,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 11:00:48,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:48,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:48,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:48,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:48,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:48,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:48,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:00:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:48,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:48,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:48,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:48,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:48,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:48,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:48,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:48,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:48,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:48,206 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 11:00:48,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468587920] [2020-09-25 11:00:48,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:00:48,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:00:48,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761076721] [2020-09-25 11:00:48,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:00:48,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:48,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:00:48,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:00:48,246 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 8 states. [2020-09-25 11:00:48,976 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:49,936 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:50,308 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:50,692 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:51,201 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:51,567 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:51,920 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:52,247 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:54,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:54,825 INFO L93 Difference]: Finished difference Result 731 states and 884 transitions. [2020-09-25 11:00:54,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:00:54,830 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 11:00:54,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:54,852 INFO L225 Difference]: With dead ends: 731 [2020-09-25 11:00:54,853 INFO L226 Difference]: Without dead ends: 504 [2020-09-25 11:00:54,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:00:54,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-09-25 11:00:55,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 458. [2020-09-25 11:00:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-09-25 11:00:55,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 512 transitions. [2020-09-25 11:00:55,024 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 512 transitions. Word has length 142 [2020-09-25 11:00:55,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:55,025 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 512 transitions. [2020-09-25 11:00:55,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:00:55,025 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 512 transitions. [2020-09-25 11:00:55,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 11:00:55,030 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:55,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:00:55,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:00:55,031 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:55,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:55,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1330220680, now seen corresponding path program 1 times [2020-09-25 11:00:55,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:55,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948905115] [2020-09-25 11:00:55,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:55,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:55,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:56,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 11:01:00,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:01:00,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 11:01:00,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:01:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:01:00,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 11:01:00,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,402 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:01:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:01:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:01:00,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 11:01:00,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:01:00,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:01:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:00,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:01:00,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:00,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:01:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:00,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:01:00,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:00,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:01:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:00,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:01:00,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:01:00,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:01:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:00,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:01:00,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:00,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 11:01:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:01:00,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:01:00,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:01:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 11:01:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:00,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:00,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:01:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:00,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:00,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 11:01:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:00,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:00,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:00,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:00,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:00,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:00,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:00,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:01:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:00,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:01:00,890 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 11:01:00,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948905115] [2020-09-25 11:01:00,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:01:00,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:01:00,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934687434] [2020-09-25 11:01:00,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:01:00,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:01:00,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:01:00,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:01:00,898 INFO L87 Difference]: Start difference. First operand 458 states and 512 transitions. Second operand 5 states. [2020-09-25 11:01:01,432 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:01:02,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:01:02,920 INFO L93 Difference]: Finished difference Result 859 states and 1014 transitions. [2020-09-25 11:01:02,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:01:02,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 11:01:02,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:01:02,933 INFO L225 Difference]: With dead ends: 859 [2020-09-25 11:01:02,933 INFO L226 Difference]: Without dead ends: 511 [2020-09-25 11:01:02,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:01:02,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-09-25 11:01:03,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 452. [2020-09-25 11:01:03,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-09-25 11:01:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 501 transitions. [2020-09-25 11:01:03,022 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 501 transitions. Word has length 148 [2020-09-25 11:01:03,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:01:03,023 INFO L479 AbstractCegarLoop]: Abstraction has 452 states and 501 transitions. [2020-09-25 11:01:03,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:01:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 501 transitions. [2020-09-25 11:01:03,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 11:01:03,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:01:03,027 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] [2020-09-25 11:01:03,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:01:03,027 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:01:03,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:01:03,028 INFO L82 PathProgramCache]: Analyzing trace with hash 519010870, now seen corresponding path program 1 times [2020-09-25 11:01:03,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:01:03,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737735654] [2020-09-25 11:01:03,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:01:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:03,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:03,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:03,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:04,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 11:01:08,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:01:08,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 11:01:08,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:01:08,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:01:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 11:01:08,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,499 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:01:08,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:01:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:01:08,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 11:01:08,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 11:01:08,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:01:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:08,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:08,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:08,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:01:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:08,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:08,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:08,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:01:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:08,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:01:08,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:08,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:08,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:01:08,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:01:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:08,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:08,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:08,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:08,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:08,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 11:01:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:01:08,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:01:08,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:08,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:08,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:01:08,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:01:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:01:08,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:01:08,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:01:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:08,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 11:01:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:01:08,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:01:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 11:01:08,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:01:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 11:01:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:01:08,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:01:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:01:08,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:01:08,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:01:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:01:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:01:08,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:01:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:08,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:01:08,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:08,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 11:01:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:08,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:08,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:08,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:01:08,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:08,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:08,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 11:01:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:08,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:08,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:08,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:08,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:08,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:08,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:08,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:01:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:08,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:09,057 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 11:01:09,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737735654] [2020-09-25 11:01:09,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:01:09,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:01:09,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138906385] [2020-09-25 11:01:09,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:01:09,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:01:09,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:01:09,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:01:09,062 INFO L87 Difference]: Start difference. First operand 452 states and 501 transitions. Second operand 8 states. [2020-09-25 11:01:09,676 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:01:11,374 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:01:14,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:01:14,153 INFO L93 Difference]: Finished difference Result 1224 states and 1570 transitions. [2020-09-25 11:01:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 11:01:14,154 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2020-09-25 11:01:14,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:01:14,161 INFO L225 Difference]: With dead ends: 1224 [2020-09-25 11:01:14,161 INFO L226 Difference]: Without dead ends: 882 [2020-09-25 11:01:14,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2020-09-25 11:01:14,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-09-25 11:01:14,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 621. [2020-09-25 11:01:14,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-09-25 11:01:14,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 710 transitions. [2020-09-25 11:01:14,261 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 710 transitions. Word has length 174 [2020-09-25 11:01:14,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:01:14,262 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 710 transitions. [2020-09-25 11:01:14,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:01:14,262 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 710 transitions. [2020-09-25 11:01:14,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 11:01:14,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:01:14,266 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] [2020-09-25 11:01:14,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:01:14,266 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:01:14,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:01:14,267 INFO L82 PathProgramCache]: Analyzing trace with hash -543453875, now seen corresponding path program 1 times [2020-09-25 11:01:14,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:01:14,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98260139] [2020-09-25 11:01:14,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:01:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:14,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:14,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:14,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:19,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:19,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 11:01:19,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:01:19,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 11:01:19,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:19,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:19,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 11:01:19,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:01:19,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-25 11:01:19,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:19,652 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:01:19,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:01:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:19,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:19,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:19,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:01:19,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:19,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 11:01:19,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:19,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:01:19,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:20,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:01:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:20,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:20,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:20,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:20,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:01:20,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:20,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:20,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:20,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:20,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:20,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:20,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:01:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:20,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:20,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:20,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:20,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:01:20,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:20,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:20,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:20,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:01:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:20,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:20,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:20,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:20,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:01:20,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:20,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:01:20,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:20,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:01:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:20,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:20,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:20,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:20,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:01:20,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:20,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:20,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:20,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 11:01:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:20,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:20,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:01:20,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:20,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:01:20,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:20,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:20,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:01:20,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:01:20,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:01:20,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:20,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 11:01:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:20,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:20,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:01:20,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:20,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:01:20,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:20,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:20,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:20,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:20,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:01:20,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:01:20,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 11:01:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:20,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:20,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 11:01:20,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:01:20,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-09-25 11:01:20,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:20,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:20,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:20,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 11:01:20,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:01:20,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:20,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:01:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:20,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:20,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:21,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:21,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 11:01:21,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:01:21,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 533 [2020-09-25 11:01:21,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:21,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:21,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:01:21,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:21,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:01:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:21,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:21,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:21,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:21,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:01:21,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:01:21,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 11:01:21,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:21,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:21,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:01:21,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:01:21,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:01:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:21,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:21,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:01:21,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:01:21,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:21,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:21,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:21,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 11:01:21,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:01:21,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:01:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:21,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:21,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:21,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:01:21,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:21,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:01:21,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:21,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:01:21,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:01:21,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:01:21,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:21,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 11:01:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:21,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:21,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:21,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:21,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:21,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:21,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:21,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:21,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:21,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:01:21,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:21,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:01:21,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 11:01:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:01:21,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:01:21,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:01:21,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:01:21,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:01:21,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:01:21,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:01:21,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:01:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:01:21,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:01:21,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:01:21,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:01:21,505 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 11:01:21,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98260139] [2020-09-25 11:01:21,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:01:21,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 11:01:21,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745294983] [2020-09-25 11:01:21,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:01:21,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:01:21,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:01:21,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:01:21,509 INFO L87 Difference]: Start difference. First operand 621 states and 710 transitions. Second operand 11 states. [2020-09-25 11:01:22,038 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:01:22,653 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:01:24,703 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:01:26,596 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188