/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=NARROWEST --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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:58:12,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:58:12,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:58:12,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:58:12,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:58:12,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:58:12,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:58:12,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:58:12,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:58:12,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:58:12,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:58:12,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:58:12,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:58:12,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:58:12,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:58:12,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:58:12,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:58:12,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:58:12,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:58:12,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:58:12,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:58:12,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:58:12,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:58:12,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:58:12,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:58:12,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:58:12,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:58:12,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:58:12,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:58:12,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:58:12,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:58:12,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:58:12,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:58:12,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:58:12,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:58:12,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:58:12,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:58:12,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:58:12,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:58:12,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:58:12,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:58:12,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:58:12,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:58:12,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:58:12,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:58:12,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:58:12,943 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:58:12,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:58:12,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:58:12,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:58:12,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:58:12,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:58:12,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:58:12,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:58:12,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:58:12,950 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:58:12,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:58:12,950 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:58:12,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:58:12,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:58:12,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:58:12,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:58:12,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:58:12,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:58:12,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:58:12,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:58:12,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:58:12,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:58:12,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:58:12,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:58:12,955 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:58:12,955 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:58:13,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:58:13,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:58:13,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:58:13,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:58:13,420 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:58:13,421 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product59.cil.c [2020-09-25 01:58:13,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02531241a/a9a802e5052f407f8a58f180f4cc6256/FLAG0f0bc748c [2020-09-25 01:58:14,166 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:58:14,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product59.cil.c [2020-09-25 01:58:14,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02531241a/a9a802e5052f407f8a58f180f4cc6256/FLAG0f0bc748c [2020-09-25 01:58:14,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02531241a/a9a802e5052f407f8a58f180f4cc6256 [2020-09-25 01:58:14,456 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:58:14,463 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:58:14,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:58:14,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:58:14,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:58:14,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:58:14" (1/1) ... [2020-09-25 01:58:14,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54cc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:14, skipping insertion in model container [2020-09-25 01:58:14,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:58:14" (1/1) ... [2020-09-25 01:58:14,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:58:14,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:58:15,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:58:15,065 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:58:15,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:58:15,224 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:58:15,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15 WrapperNode [2020-09-25 01:58:15,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:58:15,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:58:15,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:58:15,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:58:15,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:58:15,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:58:15,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:58:15,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:58:15,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:58:15,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:58:15,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:58:15,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:58:15,403 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:58:15,403 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:58:15,403 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:58:15,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:58:15,404 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:58:15,404 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:58:15,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:58:15,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:58:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:58:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:58:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:58:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:58:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:58:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:58:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:58:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:58:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:58:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:58:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:58:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:58:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:58:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:58:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:58:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:58:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:58:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:58:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:58:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:58:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:58:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:58:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:58:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:58:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:58:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:58:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:58:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:58:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:58:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:58:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:58:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:58:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:58:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:58:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:58:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:58:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:58:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:58:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:58:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:58:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:58:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:58:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:58:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:58:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:58:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:58:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:58:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:58:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:58:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:58:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:58:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:58:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:58:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:58:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:58:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:58:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:58:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:58:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:58:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:58:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:58:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:58:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:58:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:58:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:58:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:58:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:58:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:58:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:58:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:58:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:58:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:58:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:58:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:58:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:58:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:58:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:58:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:58:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:58:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:58:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:58:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:58:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:58:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:58:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:58:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:58:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:58:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:58:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:58:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:58:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:58:16,556 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:58:16,557 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:58:16,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:58:16 BoogieIcfgContainer [2020-09-25 01:58:16,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:58:16,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:58:16,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:58:16,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:58:16,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:58:14" (1/3) ... [2020-09-25 01:58:16,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2496b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:58:16, skipping insertion in model container [2020-09-25 01:58:16,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (2/3) ... [2020-09-25 01:58:16,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2496b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:58:16, skipping insertion in model container [2020-09-25 01:58:16,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:58:16" (3/3) ... [2020-09-25 01:58:16,575 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2020-09-25 01:58:16,586 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:58:16,598 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:58:16,618 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:58:16,647 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:58:16,647 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:58:16,647 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:58:16,647 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:58:16,647 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:58:16,648 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:58:16,648 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:58:16,648 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:58:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states. [2020-09-25 01:58:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 01:58:16,700 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:16,702 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] [2020-09-25 01:58:16,702 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:16,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:16,711 INFO L82 PathProgramCache]: Analyzing trace with hash 361389502, now seen corresponding path program 1 times [2020-09-25 01:58:16,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:16,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83677350] [2020-09-25 01:58:16,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:17,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:17,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 01:58:22,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:58:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-09-25 01:58:22,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:58:22,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 01:58:22,602 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:22,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:22,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 01:58:22,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:22,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:22,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:22,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:22,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:22,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:58:22,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:22,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:22,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:22,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:22,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:22,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:22,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:22,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:22,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:58:22,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:22,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:58:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:22,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:22,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:58:22,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:22,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:22,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:22,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:58:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:22,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:22,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:22,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:58:22,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:58:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:22,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:58:22,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:22,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 01:58:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:23,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83677350] [2020-09-25 01:58:23,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:23,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:58:23,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091617900] [2020-09-25 01:58:23,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:58:23,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:23,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:58:23,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:58:23,071 INFO L87 Difference]: Start difference. First operand 353 states. Second operand 4 states. [2020-09-25 01:58:24,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:24,711 INFO L93 Difference]: Finished difference Result 568 states and 662 transitions. [2020-09-25 01:58:24,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:58:24,714 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 01:58:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:24,742 INFO L225 Difference]: With dead ends: 568 [2020-09-25 01:58:24,742 INFO L226 Difference]: Without dead ends: 351 [2020-09-25 01:58:24,748 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 [2020-09-25 01:58:24,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-09-25 01:58:24,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 302. [2020-09-25 01:58:24,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-09-25 01:58:24,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 329 transitions. [2020-09-25 01:58:24,890 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 329 transitions. Word has length 160 [2020-09-25 01:58:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:24,891 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 329 transitions. [2020-09-25 01:58:24,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:58:24,891 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 329 transitions. [2020-09-25 01:58:24,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:58:24,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:24,897 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] [2020-09-25 01:58:24,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:58:24,898 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:24,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:24,898 INFO L82 PathProgramCache]: Analyzing trace with hash 424052501, now seen corresponding path program 1 times [2020-09-25 01:58:24,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:24,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331640720] [2020-09-25 01:58:24,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:25,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:25,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:27,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:28,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:29,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:29,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 01:58:29,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:58:29,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 01:58:29,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:29,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:58:29,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:58:29,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,404 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:30,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:30,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 01:58:30,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:30,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:30,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:30,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:30,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:30,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:30,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:30,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:30,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:58:30,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:30,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:30,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:30,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:58:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:30,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:58:30,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:58:30,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:30,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:30,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 01:58:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:30,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:30,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:58:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:30,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:30,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:30,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331640720] [2020-09-25 01:58:30,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:30,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:58:30,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383396408] [2020-09-25 01:58:30,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:58:30,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:30,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:58:30,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:58:30,802 INFO L87 Difference]: Start difference. First operand 302 states and 329 transitions. Second operand 5 states. [2020-09-25 01:58:31,530 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:32,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:32,704 INFO L93 Difference]: Finished difference Result 491 states and 550 transitions. [2020-09-25 01:58:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:58:32,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 01:58:32,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:32,712 INFO L225 Difference]: With dead ends: 491 [2020-09-25 01:58:32,712 INFO L226 Difference]: Without dead ends: 340 [2020-09-25 01:58:32,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:58:32,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-25 01:58:32,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 292. [2020-09-25 01:58:32,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-09-25 01:58:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 316 transitions. [2020-09-25 01:58:32,769 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 316 transitions. Word has length 161 [2020-09-25 01:58:32,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:32,769 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 316 transitions. [2020-09-25 01:58:32,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:58:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 316 transitions. [2020-09-25 01:58:32,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 01:58:32,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:32,773 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] [2020-09-25 01:58:32,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:58:32,773 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:32,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:32,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1113060057, now seen corresponding path program 1 times [2020-09-25 01:58:32,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:32,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065177516] [2020-09-25 01:58:32,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:32,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:34,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:37,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:37,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 01:58:37,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:58:37,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 01:58:37,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:37,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:37,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 01:58:37,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:58:37,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,224 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:38,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:38,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 01:58:38,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:38,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:38,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:38,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:38,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:38,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:38,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:38,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:38,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:38,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:38,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:38,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:38,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:38,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:38,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:38,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:38,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:38,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:58:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:38,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:38,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:38,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:38,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:58:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:38,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:58:38,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 01:58:38,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065177516] [2020-09-25 01:58:38,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:38,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:58:38,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108350554] [2020-09-25 01:58:38,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:58:38,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:38,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:58:38,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:58:38,563 INFO L87 Difference]: Start difference. First operand 292 states and 316 transitions. Second operand 9 states. [2020-09-25 01:58:39,143 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:40,012 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:40,622 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 01:58:41,945 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:42,295 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:58:42,636 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:43,258 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:43,580 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:58:43,890 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:44,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:44,447 INFO L93 Difference]: Finished difference Result 604 states and 699 transitions. [2020-09-25 01:58:44,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:58:44,456 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-25 01:58:44,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:44,467 INFO L225 Difference]: With dead ends: 604 [2020-09-25 01:58:44,467 INFO L226 Difference]: Without dead ends: 427 [2020-09-25 01:58:44,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 01:58:44,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-25 01:58:44,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 379. [2020-09-25 01:58:44,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-09-25 01:58:44,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2020-09-25 01:58:44,535 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 170 [2020-09-25 01:58:44,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:44,536 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2020-09-25 01:58:44,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:58:44,537 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2020-09-25 01:58:44,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 01:58:44,540 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:44,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:44,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:58:44,541 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:44,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:44,542 INFO L82 PathProgramCache]: Analyzing trace with hash -585097851, now seen corresponding path program 1 times [2020-09-25 01:58:44,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:44,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120392488] [2020-09-25 01:58:44,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:44,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 01:58:45,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 799 [2020-09-25 01:58:45,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 01:58:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:45,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:45,709 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:45,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:45,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 01:58:45,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:45,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:45,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:45,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:45,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:45,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:45,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:45,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:45,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:45,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:58:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:46,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:46,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 01:58:46,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:46,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 01:58:46,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:46,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 01:58:46,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:46,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:46,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:46,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:46,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:46,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:58:46,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:46,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 01:58:46,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:46,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:46,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:58:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:46,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:46,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:46,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:46,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:46,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:46,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:46,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 01:58:46,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:58:46,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:46,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:46,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:46,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:46,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:46,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:46,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:46,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:58:46,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:58:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:46,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:46,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:46,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:46,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:46,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:58:46,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:46,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:58:46,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:46,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:46,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 01:58:46,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:46,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:46,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:46,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:46,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:46,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:58:46,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:46,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:46,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:46,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:46,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:46,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:46,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:46,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:46,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:46,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:46,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:46,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:46,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:46,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:46,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:46,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:46,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:46,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:58:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:46,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:46,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:46,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:46,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:46,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:46,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:46,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:46,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:46,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:46,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:46,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 01:58:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:46,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:46,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:46,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:46,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:46,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:46,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:46,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:46,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 01:58:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:46,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:46,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:46,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:46,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:46,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:46,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:46,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:46,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:46,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:46,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:46,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120392488] [2020-09-25 01:58:46,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:46,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:58:46,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014791589] [2020-09-25 01:58:46,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:58:46,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:46,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:58:46,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:58:46,480 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand 9 states. [2020-09-25 01:58:47,867 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:48,183 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:58:48,487 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:48,837 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:58:49,134 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:50,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:50,207 INFO L93 Difference]: Finished difference Result 727 states and 852 transitions. [2020-09-25 01:58:50,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:58:50,208 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2020-09-25 01:58:50,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:50,212 INFO L225 Difference]: With dead ends: 727 [2020-09-25 01:58:50,212 INFO L226 Difference]: Without dead ends: 463 [2020-09-25 01:58:50,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:58:50,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-09-25 01:58:50,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 394. [2020-09-25 01:58:50,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-25 01:58:50,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 434 transitions. [2020-09-25 01:58:50,261 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 434 transitions. Word has length 230 [2020-09-25 01:58:50,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:50,262 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 434 transitions. [2020-09-25 01:58:50,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:58:50,262 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 434 transitions. [2020-09-25 01:58:50,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 01:58:50,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:50,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:50,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:58:50,266 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:50,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:50,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1252844251, now seen corresponding path program 1 times [2020-09-25 01:58:50,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:50,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063951874] [2020-09-25 01:58:50,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:50,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 01:58:51,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 868 [2020-09-25 01:58:51,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 01:58:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:51,435 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:51,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:51,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 01:58:51,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:51,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:51,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:51,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:51,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:51,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:51,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:51,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:51,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:51,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:51,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:51,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:51,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:51,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:51,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:51,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:51,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:51,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:51,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:51,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:51,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:51,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:51,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:51,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:51,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:51,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:51,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:51,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:51,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:51,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:51,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:51,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:51,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:51,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:51,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:51,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:58:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 01:58:51,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 01:58:51,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:51,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 01:58:51,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:51,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:51,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:58:51,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 01:58:51,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:51,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:58:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:51,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:51,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:51,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:51,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:51,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:51,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 01:58:51,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:51,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:58:51,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:52,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:52,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:52,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:52,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:52,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:52,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:52,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:52,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:52,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:52,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:52,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:52,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:58:52,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 01:58:52,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:52,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:52,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 01:58:52,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:52,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:52,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:52,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:52,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:52,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:58:52,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:52,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:52,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:52,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:52,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:52,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:52,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:52,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:52,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:52,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:52,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:52,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:52,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:52,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:52,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:58:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:52,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:52,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:52,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:52,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:52,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:52,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:52,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:52,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:52,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:52,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:52,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 01:58:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:52,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:52,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:52,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:52,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:52,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:52,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:52,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:52,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:52,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:52,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:52,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 01:58:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:52,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:52,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:52,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:52,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:52,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:52,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:52,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:52,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:52,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:52,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:52,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063951874] [2020-09-25 01:58:52,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:52,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:58:52,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363766433] [2020-09-25 01:58:52,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:58:52,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:52,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:58:52,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:58:52,164 INFO L87 Difference]: Start difference. First operand 394 states and 434 transitions. Second operand 10 states. [2020-09-25 01:58:54,184 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:54,438 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:58:54,759 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:58:55,107 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:55,435 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:58:55,724 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:56,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:56,878 INFO L93 Difference]: Finished difference Result 748 states and 875 transitions. [2020-09-25 01:58:56,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:58:56,879 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-09-25 01:58:56,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:56,884 INFO L225 Difference]: With dead ends: 748 [2020-09-25 01:58:56,884 INFO L226 Difference]: Without dead ends: 469 [2020-09-25 01:58:56,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:58:56,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-25 01:58:56,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 402. [2020-09-25 01:58:56,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 01:58:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 442 transitions. [2020-09-25 01:58:56,933 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 442 transitions. Word has length 230 [2020-09-25 01:58:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:56,934 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 442 transitions. [2020-09-25 01:58:56,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:58:56,934 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 442 transitions. [2020-09-25 01:58:56,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 01:58:56,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:56,938 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:56,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:58:56,938 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:56,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:56,939 INFO L82 PathProgramCache]: Analyzing trace with hash 142007426, now seen corresponding path program 1 times [2020-09-25 01:58:56,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:56,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489435610] [2020-09-25 01:58:56,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:57,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:58,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:58,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 01:58:58,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:58,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1360 [2020-09-25 01:58:58,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:58,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 01:58:58,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 01:58:58,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 01:58:58,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:58,663 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:58,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:58,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:58,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:58,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:58,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-25 01:58:58,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 01:58:58,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:59,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:59,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:59,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:59,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:59,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:59,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:59,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:59,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:58:59,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:59,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:59,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:59,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:59,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:59,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:59,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:59,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:59,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:58:59,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:59,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:59,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:58:59,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:59,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:59,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:59,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:58:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 01:58:59,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 01:58:59,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 01:58:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 01:58:59,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:58:59,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 01:58:59,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:58:59,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:59,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:58:59,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:59,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:59,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:59,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:58:59,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:58:59,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 01:58:59,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 01:58:59,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:58:59,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:59,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:59,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:59,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:59,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:59,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:59,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:59,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:58:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:59,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:59,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:59,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:59,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:59,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 01:58:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:59,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:59,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:59,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:59,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:59,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 01:58:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:59,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:59,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:59,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:59,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:59,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:59,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:59,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:59,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489435610] [2020-09-25 01:58:59,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:59,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:58:59,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32440458] [2020-09-25 01:58:59,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:58:59,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:59,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:58:59,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:58:59,448 INFO L87 Difference]: Start difference. First operand 402 states and 442 transitions. Second operand 7 states. [2020-09-25 01:58:59,982 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:59:00,740 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189