/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:10:29,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:10:29,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:10:29,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:10:29,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:10:29,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:10:29,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:10:29,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:10:29,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:10:29,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:10:29,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:10:29,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:10:29,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:10:29,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:10:29,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:10:29,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:10:29,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:10:29,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:10:29,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:10:29,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:10:29,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:10:29,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:10:29,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:10:29,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:10:29,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:10:29,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:10:29,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:10:29,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:10:29,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:10:29,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:10:29,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:10:29,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:10:29,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:10:29,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:10:29,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:10:29,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:10:29,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:10:29,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:10:29,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:10:29,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:10:29,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:10:29,503 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 05:10:29,529 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:10:29,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:10:29,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:10:29,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:10:29,531 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:10:29,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:10:29,532 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:10:29,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:10:29,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:10:29,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:10:29,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:10:29,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:10:29,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:10:29,534 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:10:29,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:10:29,534 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:10:29,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:10:29,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:10:29,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:10:29,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:10:29,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:10:29,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:10:29,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:10:29,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:10:29,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:10:29,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:10:29,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:10:29,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:10:29,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:10:29,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:10:30,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:10:30,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:10:30,060 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:10:30,062 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:10:30,063 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:10:30,064 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product07.cil.c [2020-09-25 05:10:30,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cffc2db7b/f417164e18ce46b996c15bf84a9ffcf6/FLAG6159677f9 [2020-09-25 05:10:30,835 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:10:30,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product07.cil.c [2020-09-25 05:10:30,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cffc2db7b/f417164e18ce46b996c15bf84a9ffcf6/FLAG6159677f9 [2020-09-25 05:10:31,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cffc2db7b/f417164e18ce46b996c15bf84a9ffcf6 [2020-09-25 05:10:31,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:10:31,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:10:31,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:10:31,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:10:31,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:10:31,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:10:31" (1/1) ... [2020-09-25 05:10:31,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31, skipping insertion in model container [2020-09-25 05:10:31,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:10:31" (1/1) ... [2020-09-25 05:10:31,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:10:31,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:10:31,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:10:31,708 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:10:31,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:10:31,820 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:10:31,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31 WrapperNode [2020-09-25 05:10:31,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:10:31,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:10:31,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:10:31,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:10:31,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31" (1/1) ... [2020-09-25 05:10:31,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31" (1/1) ... [2020-09-25 05:10:31,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31" (1/1) ... [2020-09-25 05:10:31,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31" (1/1) ... [2020-09-25 05:10:31,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31" (1/1) ... [2020-09-25 05:10:31,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31" (1/1) ... [2020-09-25 05:10:31,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31" (1/1) ... [2020-09-25 05:10:31,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:10:31,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:10:31,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:10:31,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:10:31,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31" (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 05:10:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:10:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:10:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:10:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:10:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:10:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:10:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:10:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:10:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:10:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:10:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:10:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:10:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:10:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:10:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:10:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:10:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:10:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:10:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:10:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:10:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:10:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:10:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:10:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:10:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:10:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:10:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:10:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:10:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:10:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:10:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:10:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:10:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:10:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:10:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:10:32,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:10:32,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:10:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:10:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:10:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:10:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:10:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:10:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:10:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:10:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:10:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:10:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:10:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:10:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:10:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:10:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:10:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:10:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:10:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:10:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:10:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:10:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:10:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:10:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:10:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:10:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:10:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:10:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:10:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:10:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:10:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:10:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:10:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:10:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:10:33,234 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:10:33,234 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:10:33,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:10:33 BoogieIcfgContainer [2020-09-25 05:10:33,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:10:33,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:10:33,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:10:33,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:10:33,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:10:31" (1/3) ... [2020-09-25 05:10:33,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16030635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:10:33, skipping insertion in model container [2020-09-25 05:10:33,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:10:31" (2/3) ... [2020-09-25 05:10:33,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16030635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:10:33, skipping insertion in model container [2020-09-25 05:10:33,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:10:33" (3/3) ... [2020-09-25 05:10:33,251 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product07.cil.c [2020-09-25 05:10:33,263 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:10:33,275 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:10:33,297 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:10:33,329 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:10:33,329 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:10:33,329 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:10:33,329 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:10:33,330 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:10:33,330 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:10:33,330 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:10:33,330 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:10:33,356 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states. [2020-09-25 05:10:33,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:10:33,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:33,374 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 05:10:33,375 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:33,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:33,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1405444908, now seen corresponding path program 1 times [2020-09-25 05:10:33,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:33,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179291395] [2020-09-25 05:10:33,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:33,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:34,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:35,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:36,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:36,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:38,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:38,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:38,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:10:38,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:10:38,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 05:10:38,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:38,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:10:38,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:38,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:10:39,233 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:39,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:10:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:39,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:39,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:39,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:10:39,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:39,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 05:10:39,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:39,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:39,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:39,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:39,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:39,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:39,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:10:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:39,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:39,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:39,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:39,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:39,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:39,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:39,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:39,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:10:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:39,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:39,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:39,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:39,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:39,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:39,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:39,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:39,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:39,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:39,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:10:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:39,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:39,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:39,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:39,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:39,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:10:39,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:39,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:39,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:39,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:39,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:39,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:10:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:39,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:39,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:39,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:39,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:39,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:39,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:39,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:39,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:39,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:39,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:39,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:10:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:39,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:39,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:39,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:10:39,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:39,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:39,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:39,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:39,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:39,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:10:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:39,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:39,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:39,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:39,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:10:39,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:39,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:39,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:39,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:39,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:39,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:39,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:10:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:39,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:39,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:39,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:39,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:39,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:39,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:39,517 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 05:10:39,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179291395] [2020-09-25 05:10:39,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:10:39,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:10:39,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547488589] [2020-09-25 05:10:39,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:10:39,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:10:39,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:10:39,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:10:39,551 INFO L87 Difference]: Start difference. First operand 279 states. Second operand 4 states. [2020-09-25 05:10:40,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:10:40,841 INFO L93 Difference]: Finished difference Result 419 states and 503 transitions. [2020-09-25 05:10:40,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:10:40,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:10:40,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:10:40,865 INFO L225 Difference]: With dead ends: 419 [2020-09-25 05:10:40,865 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 05:10:40,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:10:40,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 05:10:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 228. [2020-09-25 05:10:40,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-25 05:10:40,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 248 transitions. [2020-09-25 05:10:40,983 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 248 transitions. Word has length 148 [2020-09-25 05:10:40,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:10:40,984 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 248 transitions. [2020-09-25 05:10:40,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:10:40,984 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 248 transitions. [2020-09-25 05:10:40,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:10:40,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:40,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:10:40,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:10:40,990 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:40,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:40,991 INFO L82 PathProgramCache]: Analyzing trace with hash -84766975, now seen corresponding path program 1 times [2020-09-25 05:10:40,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:40,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132535607] [2020-09-25 05:10:40,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:41,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:41,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:42,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:43,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:44,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:46,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:46,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:10:46,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:10:46,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 05:10:46,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:46,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:46,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:46,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:10:46,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:10:46,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:46,432 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:46,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:10:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:46,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:46,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:46,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:10:46,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:46,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 05:10:46,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:46,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:46,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:46,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:46,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:46,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:46,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:10:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:46,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:46,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:46,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:46,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:46,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:46,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:46,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:46,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:10:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:46,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:46,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:46,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:46,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:46,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:46,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:46,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:46,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:46,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:10:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:46,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:46,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:46,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:46,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:46,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:10:46,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:46,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:46,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:46,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:46,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:46,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:46,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:10:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:46,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:46,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:46,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:46,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:46,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:46,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:46,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:46,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:46,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:46,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:46,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:46,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:10:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:46,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:46,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:46,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:10:46,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:46,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:46,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:46,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:46,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:46,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:10:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:46,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:46,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:46,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:46,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:46,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:46,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:46,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:46,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:46,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:46,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:46,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:46,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:10:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:46,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:46,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:46,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:46,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:46,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:46,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:46,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:46,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:10:46,687 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 05:10:46,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132535607] [2020-09-25 05:10:46,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:10:46,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:10:46,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353320413] [2020-09-25 05:10:46,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:10:46,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:10:46,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:10:46,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:10:46,693 INFO L87 Difference]: Start difference. First operand 228 states and 248 transitions. Second operand 5 states. [2020-09-25 05:10:47,416 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:10:48,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:10:48,342 INFO L93 Difference]: Finished difference Result 342 states and 390 transitions. [2020-09-25 05:10:48,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:10:48,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:10:48,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:10:48,348 INFO L225 Difference]: With dead ends: 342 [2020-09-25 05:10:48,348 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 05:10:48,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:10:48,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 05:10:48,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 218. [2020-09-25 05:10:48,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-25 05:10:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 235 transitions. [2020-09-25 05:10:48,396 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 235 transitions. Word has length 149 [2020-09-25 05:10:48,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:10:48,397 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 235 transitions. [2020-09-25 05:10:48,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:10:48,397 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 235 transitions. [2020-09-25 05:10:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 05:10:48,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:48,400 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] [2020-09-25 05:10:48,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:10:48,401 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:48,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:48,401 INFO L82 PathProgramCache]: Analyzing trace with hash -945054580, now seen corresponding path program 1 times [2020-09-25 05:10:48,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:48,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064839777] [2020-09-25 05:10:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:48,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:49,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:50,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:50,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:51,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:53,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:53,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 05:10:53,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:10:53,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 05:10:53,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:53,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:53,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:10:53,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 05:10:53,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 05:10:53,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:53,783 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:53,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:10:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:53,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:54,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:54,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:10:54,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:54,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 05:10:54,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:54,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:54,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 05:10:54,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:54,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:10:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:54,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:54,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:54,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:54,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:54,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:10:54,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:54,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:10:54,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:54,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:10:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:54,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:54,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:54,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:54,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:54,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:10:54,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:54,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:10:54,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:54,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:10:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:54,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:54,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:54,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:54,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:54,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:10:54,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:54,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:54,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:54,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:10:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:54,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:54,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:54,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:54,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:54,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:10:54,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:54,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:10:54,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:54,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:10:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:54,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:54,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:54,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:10:54,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:54,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:10:54,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:54,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:54,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:10:54,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:54,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:10:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:54,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:54,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:54,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:54,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:54,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:54,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:54,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:54,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:54,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:54,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:54,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:54,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 05:10:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:54,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:54,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:54,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:54,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:54,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:54,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:54,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:54,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:54,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:54,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:54,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:54,196 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 05:10:54,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064839777] [2020-09-25 05:10:54,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:10:54,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:10:54,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777087953] [2020-09-25 05:10:54,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:10:54,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:10:54,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:10:54,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:10:54,199 INFO L87 Difference]: Start difference. First operand 218 states and 235 transitions. Second operand 5 states. [2020-09-25 05:10:54,696 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:10:56,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:10:56,339 INFO L93 Difference]: Finished difference Result 480 states and 559 transitions. [2020-09-25 05:10:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:10:56,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-09-25 05:10:56,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:10:56,353 INFO L225 Difference]: With dead ends: 480 [2020-09-25 05:10:56,353 INFO L226 Difference]: Without dead ends: 377 [2020-09-25 05:10:56,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:10:56,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-09-25 05:10:56,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 315. [2020-09-25 05:10:56,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-09-25 05:10:56,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 350 transitions. [2020-09-25 05:10:56,461 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 350 transitions. Word has length 158 [2020-09-25 05:10:56,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:10:56,462 INFO L479 AbstractCegarLoop]: Abstraction has 315 states and 350 transitions. [2020-09-25 05:10:56,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:10:56,462 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 350 transitions. [2020-09-25 05:10:56,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 05:10:56,466 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:56,466 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] [2020-09-25 05:10:56,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:10:56,467 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:56,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:56,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1077958741, now seen corresponding path program 1 times [2020-09-25 05:10:56,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:56,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596707911] [2020-09-25 05:10:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:56,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:57,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:57,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:58,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:01,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:01,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 05:11:01,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:11:01,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 05:11:01,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:01,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:11:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:11:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 05:11:01,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:01,962 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:01,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:02,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:02,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:02,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:02,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:02,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 05:11:02,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:02,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:02,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:02,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:02,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:02,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:02,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:02,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:02,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:02,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:02,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:02,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:02,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:02,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:02,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:02,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:02,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:02,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:02,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:02,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:02,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:02,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:02,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:02,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:02,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:02,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:02,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:02,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:02,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:02,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:02,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:02,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:02,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:02,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:02,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:02,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:02,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:02,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:02,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:02,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:02,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:02,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:02,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:02,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:02,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:02,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:02,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:02,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:02,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:02,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:02,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:11:02,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:02,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:11:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:02,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:02,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:02,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:11:02,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:11:02,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:02,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:11:02,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:02,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:02,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:02,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:02,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:02,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:02,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:02,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:02,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:02,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:02,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 05:11:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:02,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:02,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:02,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:02,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:11:02,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:02,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:11:02,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:02,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 05:11:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:02,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:02,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:02,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:02,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:02,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:02,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:02,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:11:02,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:02,334 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 05:11:02,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596707911] [2020-09-25 05:11:02,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:11:02,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:11:02,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773227123] [2020-09-25 05:11:02,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:11:02,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:02,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:11:02,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:11:02,342 INFO L87 Difference]: Start difference. First operand 315 states and 350 transitions. Second operand 6 states. [2020-09-25 05:11:03,057 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:11:05,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:05,141 INFO L93 Difference]: Finished difference Result 781 states and 1009 transitions. [2020-09-25 05:11:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:11:05,142 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-25 05:11:05,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:05,149 INFO L225 Difference]: With dead ends: 781 [2020-09-25 05:11:05,149 INFO L226 Difference]: Without dead ends: 778 [2020-09-25 05:11:05,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:11:05,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2020-09-25 05:11:05,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 518. [2020-09-25 05:11:05,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-09-25 05:11:05,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 591 transitions. [2020-09-25 05:11:05,250 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 591 transitions. Word has length 166 [2020-09-25 05:11:05,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:05,251 INFO L479 AbstractCegarLoop]: Abstraction has 518 states and 591 transitions. [2020-09-25 05:11:05,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:11:05,251 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 591 transitions. [2020-09-25 05:11:05,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 05:11:05,255 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:05,256 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:05,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:11:05,256 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:05,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:05,257 INFO L82 PathProgramCache]: Analyzing trace with hash -336437969, now seen corresponding path program 1 times [2020-09-25 05:11:05,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:05,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010991723] [2020-09-25 05:11:05,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:05,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:05,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:05,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:05,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:09,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:10,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:10,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-25 05:11:10,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:11:10,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 05:11:10,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:10,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:11:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 05:11:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:11:10,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:10,660 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:10,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:10,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:10,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:10,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:10,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:10,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 05:11:10,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:10,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:10,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:10,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:10,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:10,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:10,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:10,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:10,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:10,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:10,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:10,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:10,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:10,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:10,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:10,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:10,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:10,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:10,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:10,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:10,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:10,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:10,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:10,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:10,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:10,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:10,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:10,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:10,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:10,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:10,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:10,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:10,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:10,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:10,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:10,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:10,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:10,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:10,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:10,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:10,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:10,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:10,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:10,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:10,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:10,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:10,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:10,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:10,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:10,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:10,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:10,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 05:11:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:10,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:10,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:10,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:11:10,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:10,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:10,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:10,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:10,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:10,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:10,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:11:10,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:10,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 05:11:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:10,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:10,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:11,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:11,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:11:11,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:11:11,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 05:11:11,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:11,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:11,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:11:11,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:11:11,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 05:11:11,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:11,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:11,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:11,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:11,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 05:11:11,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:11,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 05:11:11,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:11,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:11,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:11:11,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:11,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 05:11:11,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:11,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:11,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:11,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:11,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:11,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:11,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:11,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:11,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:11,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:11,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:11,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:11,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 05:11:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:11,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:11,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:11,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:11,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:11,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:11,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:11,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:11:11,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:11,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:11:11,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:11,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 05:11:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:11,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:11,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:11,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:11,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:11,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:11,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:11,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:11,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:11,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 05:11:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:11,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:11,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:11,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:11,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:11,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:11,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:11,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 05:11:11,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010991723] [2020-09-25 05:11:11,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:11:11,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 05:11:11,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481833048] [2020-09-25 05:11:11,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 05:11:11,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:11,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 05:11:11,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 05:11:11,256 INFO L87 Difference]: Start difference. First operand 518 states and 591 transitions. Second operand 14 states. [2020-09-25 05:11:11,837 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:11:13,319 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:11:13,635 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:11:13,969 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:11:14,317 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:11:14,601 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:11:14,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:14,869 INFO L93 Difference]: Finished difference Result 720 states and 861 transitions. [2020-09-25 05:11:14,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 05:11:14,869 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 213 [2020-09-25 05:11:14,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:14,870 INFO L225 Difference]: With dead ends: 720 [2020-09-25 05:11:14,870 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 05:11:14,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=229, Invalid=641, Unknown=0, NotChecked=0, Total=870 [2020-09-25 05:11:14,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 05:11:14,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 05:11:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 05:11:14,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 05:11:14,876 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 213 [2020-09-25 05:11:14,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:14,877 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 05:11:14,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 05:11:14,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 05:11:14,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 05:11:14,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:11:14,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 05:11:15,097 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:11:15,288 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:11:15,709 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 203 [2020-09-25 05:11:15,889 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 193