/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=SMALLEST --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_spec5_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:07:11,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:07:11,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:07:11,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:07:11,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:07:11,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:07:11,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:07:11,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:07:11,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:07:11,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:07:11,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:07:11,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:07:11,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:07:11,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:07:11,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:07:11,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:07:11,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:07:11,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:07:11,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:07:11,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:07:11,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:07:11,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:07:11,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:07:11,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:07:11,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:07:11,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:07:11,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:07:11,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:07:11,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:07:11,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:07:11,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:07:11,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:07:11,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:07:11,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:07:11,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:07:11,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:07:11,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:07:11,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:07:11,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:07:11,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:07:11,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:07:11,476 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 [2020-09-24 18:07:11,507 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:07:11,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:07:11,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:07:11,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:07:11,509 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:07:11,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:07:11,510 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:07:11,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:07:11,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:07:11,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:07:11,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:07:11,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:07:11,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:07:11,511 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:07:11,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:07:11,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:07:11,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:07:11,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:07:11,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:07:11,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:07:11,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:07:11,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:07:11,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:07:11,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:07:11,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:07:11,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:07:11,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:07:11,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:07:11,514 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:07:11,515 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:07:12,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:07:12,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:07:12,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:07:12,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:07:12,046 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:07:12,047 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product20.cil.c [2020-09-24 18:07:12,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d30c600c3/1934392a2ffa476481c54cf66b8a7544/FLAGed0093a05 [2020-09-24 18:07:12,756 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:07:12,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product20.cil.c [2020-09-24 18:07:12,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d30c600c3/1934392a2ffa476481c54cf66b8a7544/FLAGed0093a05 [2020-09-24 18:07:12,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d30c600c3/1934392a2ffa476481c54cf66b8a7544 [2020-09-24 18:07:13,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:07:13,014 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:07:13,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:07:13,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:07:13,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:07:13,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:07:12" (1/1) ... [2020-09-24 18:07:13,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13, skipping insertion in model container [2020-09-24 18:07:13,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:07:12" (1/1) ... [2020-09-24 18:07:13,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:07:13,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:07:13,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:07:13,651 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:07:13,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:07:13,863 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:07:13,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13 WrapperNode [2020-09-24 18:07:13,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:07:13,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:07:13,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:07:13,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:07:13,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13" (1/1) ... [2020-09-24 18:07:13,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13" (1/1) ... [2020-09-24 18:07:13,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13" (1/1) ... [2020-09-24 18:07:13,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13" (1/1) ... [2020-09-24 18:07:13,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13" (1/1) ... [2020-09-24 18:07:13,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13" (1/1) ... [2020-09-24 18:07:13,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13" (1/1) ... [2020-09-24 18:07:13,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:07:13,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:07:13,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:07:13,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:07:13,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13" (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 [2020-09-24 18:07:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:07:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:07:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:07:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:07:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:07:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:07:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:07:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:07:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:07:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:07:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:07:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:07:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:07:14,044 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:07:14,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:07:14,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:07:14,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:07:14,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:07:14,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:07:14,047 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:07:14,048 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:07:14,048 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:07:14,048 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:07:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:07:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:07:14,051 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:07:14,051 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:07:14,051 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:07:14,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:07:14,052 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:07:14,052 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:07:14,053 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:07:14,053 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:07:14,053 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:07:14,053 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:07:14,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:07:14,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:07:14,053 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:07:14,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:07:14,054 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:07:14,054 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:07:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:07:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:07:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:07:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:07:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:07:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:07:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:07:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:07:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:07:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:07:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:07:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:07:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:07:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:07:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:07:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:07:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:07:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:07:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:07:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:07:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:07:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:07:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:07:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:07:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:07:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:07:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:07:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:07:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:07:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:07:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:07:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:07:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:07:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:07:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:07:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:07:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:07:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:07:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:07:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:07:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:07:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:07:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:07:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:07:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:07:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:07:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:07:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:07:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:07:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:07:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:07:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:07:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:07:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:07:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:07:15,253 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:07:15,253 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:07:15,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:07:15 BoogieIcfgContainer [2020-09-24 18:07:15,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:07:15,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:07:15,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:07:15,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:07:15,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:07:12" (1/3) ... [2020-09-24 18:07:15,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f83e362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:07:15, skipping insertion in model container [2020-09-24 18:07:15,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:13" (2/3) ... [2020-09-24 18:07:15,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f83e362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:07:15, skipping insertion in model container [2020-09-24 18:07:15,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:07:15" (3/3) ... [2020-09-24 18:07:15,270 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product20.cil.c [2020-09-24 18:07:15,281 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:07:15,292 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:07:15,314 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:07:15,343 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:07:15,343 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:07:15,343 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:07:15,343 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:07:15,343 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:07:15,344 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:07:15,344 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:07:15,344 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:07:15,375 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-24 18:07:15,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:07:15,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:07:15,395 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:07:15,396 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:07:15,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:07:15,404 INFO L82 PathProgramCache]: Analyzing trace with hash -502904586, now seen corresponding path program 1 times [2020-09-24 18:07:15,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:07:15,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216762047] [2020-09-24 18:07:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:07:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:15,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:16,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:17,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:17,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:20,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:20,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:20,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:07:20,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:07:20,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 18:07:20,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:20,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:20,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:07:20,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:20,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-24 18:07:21,280 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:07:21,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:21,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:21,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:21,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:07:21,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 18:07:21,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:21,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:21,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:07:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:21,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:21,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:21,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:21,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:21,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:07:21,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:21,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:07:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:21,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:21,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:21,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:21,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:07:21,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:21,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:07:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:21,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:21,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:21,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:21,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:21,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:07:21,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:21,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:21,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:21,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:07:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:21,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:21,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:21,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:21,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:21,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:21,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:21,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:21,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:21,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:21,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:21,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:07:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:21,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:21,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:21,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:07:21,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:21,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:07:21,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:21,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:21,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:07:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:21,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:21,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:21,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:07:21,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:21,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:07:21,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:21,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:07:21,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:21,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:21,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:21,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:21,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:21,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:21,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:21,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:21,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:21,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:21,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:21,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:21,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:21,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:07:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:21,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:21,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:21,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:21,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:21,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:07:21,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:21,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:21,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:07:21,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:21,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:21,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:07:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:21,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:21,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:21,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:21,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:21,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:21,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:21,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:21,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:07:21,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:21,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:21,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:07:21,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216762047] [2020-09-24 18:07:21,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:07:21,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:07:21,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648300168] [2020-09-24 18:07:21,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:07:21,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:07:21,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:07:21,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:07:21,692 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-09-24 18:07:22,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:07:22,936 INFO L93 Difference]: Finished difference Result 456 states and 539 transitions. [2020-09-24 18:07:22,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:07:22,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:07:22,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:07:22,962 INFO L225 Difference]: With dead ends: 456 [2020-09-24 18:07:22,963 INFO L226 Difference]: Without dead ends: 294 [2020-09-24 18:07:22,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:07:22,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-24 18:07:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 247. [2020-09-24 18:07:23,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 18:07:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 268 transitions. [2020-09-24 18:07:23,083 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 268 transitions. Word has length 160 [2020-09-24 18:07:23,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:07:23,084 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 268 transitions. [2020-09-24 18:07:23,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:07:23,085 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 268 transitions. [2020-09-24 18:07:23,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:07:23,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:07:23,091 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:07:23,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:07:23,091 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:07:23,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:07:23,092 INFO L82 PathProgramCache]: Analyzing trace with hash -445941209, now seen corresponding path program 1 times [2020-09-24 18:07:23,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:07:23,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770882457] [2020-09-24 18:07:23,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:07:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:23,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:23,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:24,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:25,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:26,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:07:28,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:07:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 18:07:28,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:07:28,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:07:28,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:07:28,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:28,618 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:07:28,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:28,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:07:28,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:28,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 18:07:28,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:28,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:28,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:07:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:28,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:28,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:28,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:28,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:28,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:28,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:28,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:28,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:07:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:28,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:28,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:28,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:28,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:07:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:28,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:28,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:28,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:07:28,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:28,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:28,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:28,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:07:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:28,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:28,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:28,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:07:28,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:28,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:28,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:28,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:28,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:07:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:28,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:07:28,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:28,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:28,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:28,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:28,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:07:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:28,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:07:28,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:28,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:07:28,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:07:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:28,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:28,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:28,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:28,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:28,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:28,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:28,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:28,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:07:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:28,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:28,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:28,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:28,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:07:28,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:28,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:28,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:07:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:28,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:28,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:28,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:28,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:28,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:28,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:07:28,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:28,909 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:07:28,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770882457] [2020-09-24 18:07:28,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:07:28,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:07:28,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992803345] [2020-09-24 18:07:28,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:07:28,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:07:28,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:07:28,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:07:28,914 INFO L87 Difference]: Start difference. First operand 247 states and 268 transitions. Second operand 5 states. [2020-09-24 18:07:29,578 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:30,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:07:30,498 INFO L93 Difference]: Finished difference Result 375 states and 423 transitions. [2020-09-24 18:07:30,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:07:30,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:07:30,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:07:30,503 INFO L225 Difference]: With dead ends: 375 [2020-09-24 18:07:30,503 INFO L226 Difference]: Without dead ends: 283 [2020-09-24 18:07:30,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:07:30,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-24 18:07:30,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 237. [2020-09-24 18:07:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-24 18:07:30,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 255 transitions. [2020-09-24 18:07:30,546 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 255 transitions. Word has length 161 [2020-09-24 18:07:30,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:07:30,547 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 255 transitions. [2020-09-24 18:07:30,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:07:30,547 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 255 transitions. [2020-09-24 18:07:30,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 18:07:30,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:07:30,550 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:07:30,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:07:30,551 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:07:30,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:07:30,551 INFO L82 PathProgramCache]: Analyzing trace with hash -292418968, now seen corresponding path program 1 times [2020-09-24 18:07:30,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:07:30,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359872426] [2020-09-24 18:07:30,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:07:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:30,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:30,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:31,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:32,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:35,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:35,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:07:35,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:07:35,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 18:07:35,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:07:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 18:07:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:07:35,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:35,932 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:07:35,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:35,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:07:36,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:07:36,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:36,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:07:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:36,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:36,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:36,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:36,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:36,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:36,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:36,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:07:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:36,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:36,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:36,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:36,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:36,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:07:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:36,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:36,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:07:36,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:36,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:36,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:36,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:36,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:07:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:36,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:36,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:36,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:36,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:36,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:07:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:36,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:07:36,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:36,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:36,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:36,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:36,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:36,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:07:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:36,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:07:36,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:07:36,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:07:36,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:36,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:07:36,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:36,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:07:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:36,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:07:36,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:07:36,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:07:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:07:36,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:36,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:36,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:36,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:36,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:36,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:36,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:07:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:36,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:36,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:36,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:36,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:07:36,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:36,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:36,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 18:07:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:36,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:36,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:36,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:36,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:36,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:36,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:07:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:36,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:36,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:07:36,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359872426] [2020-09-24 18:07:36,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:07:36,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:07:36,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602439972] [2020-09-24 18:07:36,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:07:36,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:07:36,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:07:36,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:07:36,246 INFO L87 Difference]: Start difference. First operand 237 states and 255 transitions. Second operand 6 states. [2020-09-24 18:07:37,071 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:07:38,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:07:38,863 INFO L93 Difference]: Finished difference Result 555 states and 645 transitions. [2020-09-24 18:07:38,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:07:38,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 18:07:38,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:07:38,872 INFO L225 Difference]: With dead ends: 555 [2020-09-24 18:07:38,873 INFO L226 Difference]: Without dead ends: 433 [2020-09-24 18:07:38,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:07:38,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-24 18:07:38,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 349. [2020-09-24 18:07:38,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-24 18:07:38,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 386 transitions. [2020-09-24 18:07:38,975 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 386 transitions. Word has length 174 [2020-09-24 18:07:38,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:07:38,977 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 386 transitions. [2020-09-24 18:07:38,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:07:38,978 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 386 transitions. [2020-09-24 18:07:38,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-24 18:07:38,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:07:38,981 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:07:38,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:07:38,982 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:07:38,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:07:38,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1020289759, now seen corresponding path program 1 times [2020-09-24 18:07:38,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:07:38,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382193593] [2020-09-24 18:07:38,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:07:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:39,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:39,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:39,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:42,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 18:07:44,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:07:44,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-24 18:07:44,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:07:44,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 18:07:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:07:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,448 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:07:44,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:07:44,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 18:07:44,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:44,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:44,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:07:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:44,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:44,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:07:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:44,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:44,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:44,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:07:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:44,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:07:44,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:44,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:44,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:07:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:44,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:44,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:44,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:44,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:07:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:07:44,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:44,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:44,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:44,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 18:07:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:07:44,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:44,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:44,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:44,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:07:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:07:44,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:44,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:44,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:44,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:44,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 18:07:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:44,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:07:44,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:07:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:07:44,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-24 18:07:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:44,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:44,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:44,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:44,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:07:44,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:07:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:07:44,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:44,760 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:07:44,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382193593] [2020-09-24 18:07:44,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:07:44,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:07:44,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909414006] [2020-09-24 18:07:44,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:07:44,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:07:44,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:07:44,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:07:44,763 INFO L87 Difference]: Start difference. First operand 349 states and 386 transitions. Second operand 10 states. [2020-09-24 18:07:45,291 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:46,393 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:46,720 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:07:47,742 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:07:48,256 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 18:07:48,639 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 18:07:48,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:07:48,711 INFO L93 Difference]: Finished difference Result 580 states and 688 transitions. [2020-09-24 18:07:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 18:07:48,712 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-24 18:07:48,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:07:48,713 INFO L225 Difference]: With dead ends: 580 [2020-09-24 18:07:48,713 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:07:48,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-24 18:07:48,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:07:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:07:48,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:07:48,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:07:48,717 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-09-24 18:07:48,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:07:48,717 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:07:48,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:07:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:07:48,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:07:48,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:07:48,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:07:48,917 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:49,091 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:49,281 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:49,574 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 7 [2020-09-24 18:07:49,735 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:49,904 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:50,073 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:50,237 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:50,402 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:50,572 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:50,881 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:07:51,190 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:07:51,505 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:07:51,816 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:07:51,961 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:07:52,123 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:52,283 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:52,436 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:52,596 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:52,754 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:52,907 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:53,066 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:53,227 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:53,384 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:53,538 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:53,696 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:53,855 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:54,015 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:54,168 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:54,327 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:54,482 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:54,640 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:54,798 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:54,955 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:55,115 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:55,272 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:55,380 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-24 18:07:55,533 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:55,692 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:55,849 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:56,007 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:56,165 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:56,318 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:56,477 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:56,636 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:56,746 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-24 18:07:56,920 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:57,077 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:57,235 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:57,342 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-24 18:07:57,503 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:57,655 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:57,815 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:57,920 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-24 18:07:58,077 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:58,230 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:58,394 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:58,555 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:58,814 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 7 [2020-09-24 18:07:58,971 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:59,131 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:59,290 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:59,447 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:59,605 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:59,767 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:00,220 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 9 [2020-09-24 18:08:00,499 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-24 18:08:00,720 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-24 18:08:00,920 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-24 18:08:01,172 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-24 18:08:01,383 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 10 [2020-09-24 18:08:01,656 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:01,886 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-24 18:08:02,090 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-24 18:08:02,529 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 16 [2020-09-24 18:08:02,808 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1