/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:38:04,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:38:04,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:38:04,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:38:04,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:38:04,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:38:04,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:38:04,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:38:04,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:38:04,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:38:04,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:38:04,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:38:04,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:38:04,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:38:04,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:38:04,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:38:04,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:38:04,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:38:04,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:38:04,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:38:04,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:38:04,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:38:04,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:38:04,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:38:04,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:38:04,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:38:04,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:38:04,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:38:04,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:38:04,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:38:04,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:38:04,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:38:04,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:38:04,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:38:04,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:38:04,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:38:04,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:38:04,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:38:04,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:38:04,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:38:04,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:38:04,895 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 [2020-10-29 11:38:04,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:38:04,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:38:04,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:38:04,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:38:04,949 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:38:04,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:38:04,950 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:38:04,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:38:04,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:38:04,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:38:04,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:38:04,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:38:04,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:38:04,952 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:38:04,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:38:04,953 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:38:04,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:38:04,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:38:04,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:38:04,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:38:04,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:38:04,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:38:04,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:38:04,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:38:04,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:38:04,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:38:04,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:38:04,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:38:04,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:38:04,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:38:05,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:38:05,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:38:05,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:38:05,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:38:05,376 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:38:05,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-10-29 11:38:05,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eefc10391/262cbdc8362047398c1c1faea49f2178/FLAG12225e1fb [2020-10-29 11:38:06,152 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:38:06,153 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-10-29 11:38:06,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eefc10391/262cbdc8362047398c1c1faea49f2178/FLAG12225e1fb [2020-10-29 11:38:06,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eefc10391/262cbdc8362047398c1c1faea49f2178 [2020-10-29 11:38:06,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:38:06,482 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:38:06,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:38:06,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:38:06,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:38:06,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:38:06" (1/1) ... [2020-10-29 11:38:06,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad7ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:06, skipping insertion in model container [2020-10-29 11:38:06,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:38:06" (1/1) ... [2020-10-29 11:38:06,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:38:06,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:38:06,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:38:06,894 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:38:06,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:38:07,020 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:38:07,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:07 WrapperNode [2020-10-29 11:38:07,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:38:07,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:38:07,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:38:07,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:38:07,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:07" (1/1) ... [2020-10-29 11:38:07,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:07" (1/1) ... [2020-10-29 11:38:07,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:07" (1/1) ... [2020-10-29 11:38:07,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:07" (1/1) ... [2020-10-29 11:38:07,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:07" (1/1) ... [2020-10-29 11:38:07,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:07" (1/1) ... [2020-10-29 11:38:07,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:07" (1/1) ... [2020-10-29 11:38:07,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:38:07,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:38:07,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:38:07,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:38:07,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:07" (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 [2020-10-29 11:38:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:38:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:38:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:38:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:38:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:38:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:38:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:38:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:38:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:38:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:38:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:38:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:38:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:38:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-29 11:38:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:38:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-29 11:38:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:38:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:38:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:38:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:38:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:38:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-29 11:38:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:38:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-29 11:38:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:38:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:38:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:38:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:38:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:38:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:38:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:38:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:38:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:38:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:38:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:38:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:38:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:38:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:38:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:38:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:38:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:38:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-29 11:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:38:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:38:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:38:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:38:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:38:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:38:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:38:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:38:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:38:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:38:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:38:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:38:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:38:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:38:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:38:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:38:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:38:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:38:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-29 11:38:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:38:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:38:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:38:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:38:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:38:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:38:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:38:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-29 11:38:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:38:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:38:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:38:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:38:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:38:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:38:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:38:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-29 11:38:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-29 11:38:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:38:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-29 11:38:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:38:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:38:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:38:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:38:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:38:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:38:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:38:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:38:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:38:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:38:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:38:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:38:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:38:08,367 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:38:08,367 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:38:08,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:38:08 BoogieIcfgContainer [2020-10-29 11:38:08,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:38:08,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:38:08,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:38:08,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:38:08,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:38:06" (1/3) ... [2020-10-29 11:38:08,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1e2ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:38:08, skipping insertion in model container [2020-10-29 11:38:08,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:07" (2/3) ... [2020-10-29 11:38:08,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1e2ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:38:08, skipping insertion in model container [2020-10-29 11:38:08,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:38:08" (3/3) ... [2020-10-29 11:38:08,379 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-10-29 11:38:08,391 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:38:08,396 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:38:08,410 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:38:08,440 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:38:08,440 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:38:08,440 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:38:08,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:38:08,440 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:38:08,440 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:38:08,441 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:38:08,441 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:38:08,464 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-10-29 11:38:08,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 11:38:08,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:08,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:38:08,477 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:38:08,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:08,484 INFO L82 PathProgramCache]: Analyzing trace with hash -889021912, now seen corresponding path program 1 times [2020-10-29 11:38:08,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:08,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762637098] [2020-10-29 11:38:08,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:08,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:08,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:09,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:11,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:11,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 11:38:11,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:38:11,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3090 [2020-10-29 11:38:11,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:11,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:11,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:38:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:38:11,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-29 11:38:12,272 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:38:12,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:38:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:12,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:12,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:12,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:12,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:12,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 11:38:12,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:12,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:38:12,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:12,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:38:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:12,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:12,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:12,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:12,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:12,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:12,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:12,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:12,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:12,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:38:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:12,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:12,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:12,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:12,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:12,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:12,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:12,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:12,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:12,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:12,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:38:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:12,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:12,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:12,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:12,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:12,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:12,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:12,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:12,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:12,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:38:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:12,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:12,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:12,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:12,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:12,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:12,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:12,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:12,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:12,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:12,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:12,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:12,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:38:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:12,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:12,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:12,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:12,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:12,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:12,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:12,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:12,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:12,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:38:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:12,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:12,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:12,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:12,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:12,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:12,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:12,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:12,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:12,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:12,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:12,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:12,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:38:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:12,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:12,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:12,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:12,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:12,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:12,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:12,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:38:12,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762637098] [2020-10-29 11:38:12,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:38:12,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:38:12,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209644899] [2020-10-29 11:38:12,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:38:12,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:38:12,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:38:12,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:38:12,545 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 4 states. [2020-10-29 11:38:12,949 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:38:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:38:15,529 INFO L93 Difference]: Finished difference Result 462 states and 614 transitions. [2020-10-29 11:38:15,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:38:15,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-29 11:38:15,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:38:15,556 INFO L225 Difference]: With dead ends: 462 [2020-10-29 11:38:15,557 INFO L226 Difference]: Without dead ends: 301 [2020-10-29 11:38:15,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:38:15,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-29 11:38:15,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 237. [2020-10-29 11:38:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-29 11:38:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 288 transitions. [2020-10-29 11:38:15,753 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 288 transitions. Word has length 53 [2020-10-29 11:38:15,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:38:15,754 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 288 transitions. [2020-10-29 11:38:15,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:38:15,755 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 288 transitions. [2020-10-29 11:38:15,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-29 11:38:15,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:15,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:38:15,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:38:15,770 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:38:15,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:15,771 INFO L82 PathProgramCache]: Analyzing trace with hash 501852881, now seen corresponding path program 1 times [2020-10-29 11:38:15,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:15,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997426170] [2020-10-29 11:38:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:15,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:15,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 11:38:18,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:38:18,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2254 [2020-10-29 11:38:18,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 11:38:18,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:18,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 11:38:18,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:18,519 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:38:18,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:38:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:18,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 11:38:18,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:18,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:38:18,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 11:38:18,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:38:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:18,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:18,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:18,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:18,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:18,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:38:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:18,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:18,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:18,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:38:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:18,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:18,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:18,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:18,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:38:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:18,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 11:38:18,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:18,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:18,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 11:38:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 11:38:18,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:38:18,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:18,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:18,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 11:38:18,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:18,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:38:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:38:18,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:18,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:18,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 11:38:18,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:38:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:18,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:18,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:18,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:18,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 11:38:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:18,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:38:18,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:18,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:18,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:18,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:18,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 11:38:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:18,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 11:38:18,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:38:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:18,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:18,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 11:38:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:18,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:18,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:18,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:18,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:18,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:18,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:38:18,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997426170] [2020-10-29 11:38:18,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:38:18,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:38:18,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15618069] [2020-10-29 11:38:18,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:38:18,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:38:18,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:38:18,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:38:18,815 INFO L87 Difference]: Start difference. First operand 237 states and 288 transitions. Second operand 8 states. [2020-10-29 11:38:19,378 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:38:21,901 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208 [2020-10-29 11:38:22,377 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:22,810 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:23,267 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:23,769 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:38:25,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:38:25,322 INFO L93 Difference]: Finished difference Result 812 states and 1123 transitions. [2020-10-29 11:38:25,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 11:38:25,324 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-29 11:38:25,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:38:25,333 INFO L225 Difference]: With dead ends: 812 [2020-10-29 11:38:25,333 INFO L226 Difference]: Without dead ends: 599 [2020-10-29 11:38:25,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-29 11:38:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-10-29 11:38:25,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 452. [2020-10-29 11:38:25,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-10-29 11:38:25,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 568 transitions. [2020-10-29 11:38:25,482 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 568 transitions. Word has length 67 [2020-10-29 11:38:25,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:38:25,483 INFO L481 AbstractCegarLoop]: Abstraction has 452 states and 568 transitions. [2020-10-29 11:38:25,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:38:25,483 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 568 transitions. [2020-10-29 11:38:25,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-29 11:38:25,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:25,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:38:25,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:38:25,488 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:38:25,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:25,489 INFO L82 PathProgramCache]: Analyzing trace with hash -771369, now seen corresponding path program 1 times [2020-10-29 11:38:25,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:25,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77188068] [2020-10-29 11:38:25,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:25,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:25,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:25,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:25,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:28,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 11:38:30,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 11:38:30,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 11:38:30,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 11:38:30,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 11:38:30,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,967 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:38:30,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:38:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:31,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 11:38:31,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:31,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:38:31,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:38:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:31,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:31,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:31,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:31,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:31,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:38:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:31,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:31,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:31,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:38:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:31,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:31,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:31,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:38:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:31,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:31,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:31,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:38:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:31,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 11:38:31,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:38:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:38:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:38:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 11:38:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 11:38:31,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:31,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 11:38:31,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:38:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:38:31,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:31,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:31,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:31,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:31,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:38:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:31,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:31,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:31,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 11:38:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:31,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:31,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:31,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:31,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:31,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 11:38:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:31,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:38:31,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:38:31,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:31,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:31,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 11:38:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:31,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:31,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:31,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:31,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:31,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:31,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:31,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:31,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:31,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:31,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:31,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:31,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:38:31,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77188068] [2020-10-29 11:38:31,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:38:31,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 11:38:31,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512852732] [2020-10-29 11:38:31,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 11:38:31,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:38:31,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 11:38:31,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-29 11:38:31,269 INFO L87 Difference]: Start difference. First operand 452 states and 568 transitions. Second operand 11 states. [2020-10-29 11:38:31,867 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:38:32,946 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:38:34,361 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 208 [2020-10-29 11:38:36,435 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208 [2020-10-29 11:38:37,151 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-29 11:38:37,608 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-29 11:38:38,081 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:38,951 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 208 [2020-10-29 11:38:39,648 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 11:38:40,159 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 11:38:41,022 WARN L193 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 211 [2020-10-29 11:38:41,427 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:42,475 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-29 11:38:43,410 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-29 11:38:44,218 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2020-10-29 11:38:48,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:38:48,515 INFO L93 Difference]: Finished difference Result 1417 states and 2204 transitions. [2020-10-29 11:38:48,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-29 11:38:48,516 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-29 11:38:48,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:38:48,529 INFO L225 Difference]: With dead ends: 1417 [2020-10-29 11:38:48,529 INFO L226 Difference]: Without dead ends: 1182 [2020-10-29 11:38:48,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=307, Invalid=1025, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 11:38:48,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2020-10-29 11:38:48,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 809. [2020-10-29 11:38:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-10-29 11:38:48,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1025 transitions. [2020-10-29 11:38:48,830 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1025 transitions. Word has length 71 [2020-10-29 11:38:48,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:38:48,831 INFO L481 AbstractCegarLoop]: Abstraction has 809 states and 1025 transitions. [2020-10-29 11:38:48,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 11:38:48,832 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1025 transitions. [2020-10-29 11:38:48,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-29 11:38:48,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:48,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:38:48,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:38:48,841 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:38:48,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:48,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1446732780, now seen corresponding path program 1 times [2020-10-29 11:38:48,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:48,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427256285] [2020-10-29 11:38:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:48,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:49,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:49,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:52,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:53,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:53,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 11:38:53,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:38:53,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 11:38:53,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:53,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:53,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 11:38:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-29 11:38:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 11:38:53,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,273 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:38:54,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:38:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:54,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 11:38:54,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:54,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:38:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:54,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:38:54,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:54,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:38:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:54,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:38:54,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:54,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:38:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:54,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:54,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:54,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:54,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:54,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:38:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:54,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:38:54,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:54,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 11:38:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:54,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:54,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:54,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:54,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:38:54,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:54,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 11:38:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:38:54,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:54,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:38:54,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:38:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:54,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 11:38:54,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:38:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:38:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:38:54,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 11:38:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:54,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:54,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:54,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 11:38:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:54,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:38:54,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:38:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:54,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 11:38:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:54,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:54,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:54,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:54,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:54,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:54,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:54,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:38:54,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427256285] [2020-10-29 11:38:54,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:38:54,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 11:38:54,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858160458] [2020-10-29 11:38:54,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 11:38:54,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:38:54,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 11:38:54,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-29 11:38:54,546 INFO L87 Difference]: Start difference. First operand 809 states and 1025 transitions. Second operand 11 states. [2020-10-29 11:38:55,113 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:38:56,069 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:38:57,742 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:38:58,344 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:38:58,794 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:38:59,247 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:39:02,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:39:02,504 INFO L93 Difference]: Finished difference Result 1919 states and 2795 transitions. [2020-10-29 11:39:02,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 11:39:02,510 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-10-29 11:39:02,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:39:02,521 INFO L225 Difference]: With dead ends: 1919 [2020-10-29 11:39:02,521 INFO L226 Difference]: Without dead ends: 1169 [2020-10-29 11:39:02,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-10-29 11:39:02,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-10-29 11:39:02,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 894. [2020-10-29 11:39:02,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-29 11:39:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1100 transitions. [2020-10-29 11:39:02,764 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1100 transitions. Word has length 72 [2020-10-29 11:39:02,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:39:02,765 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1100 transitions. [2020-10-29 11:39:02,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 11:39:02,765 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1100 transitions. [2020-10-29 11:39:02,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 11:39:02,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:39:02,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:39:02,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:39:02,769 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:39:02,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:39:02,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1580735694, now seen corresponding path program 1 times [2020-10-29 11:39:02,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:39:02,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346615045] [2020-10-29 11:39:02,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:39:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:39:02,810 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:39:02,810 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:39:02,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 11:39:02,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:39:02 BoogieIcfgContainer [2020-10-29 11:39:02,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:39:02,839 INFO L168 Benchmark]: Toolchain (without parser) took 56362.62 ms. Allocated memory was 157.3 MB in the beginning and 595.6 MB in the end (delta: 438.3 MB). Free memory was 131.0 MB in the beginning and 386.2 MB in the end (delta: -255.2 MB). Peak memory consumption was 184.4 MB. Max. memory is 8.0 GB. [2020-10-29 11:39:02,840 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 157.3 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:39:02,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.03 ms. Allocated memory is still 157.3 MB. Free memory was 130.3 MB in the beginning and 109.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:39:02,841 INFO L168 Benchmark]: Boogie Preprocessor took 104.92 ms. Allocated memory is still 157.3 MB. Free memory was 109.3 MB in the beginning and 105.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 11:39:02,842 INFO L168 Benchmark]: RCFGBuilder took 1241.64 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 105.1 MB in the beginning and 160.5 MB in the end (delta: -55.4 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. [2020-10-29 11:39:02,843 INFO L168 Benchmark]: TraceAbstraction took 54465.53 ms. Allocated memory was 188.7 MB in the beginning and 595.6 MB in the end (delta: 406.8 MB). Free memory was 160.0 MB in the beginning and 386.2 MB in the end (delta: -226.2 MB). Peak memory consumption was 181.2 MB. Max. memory is 8.0 GB. [2020-10-29 11:39:02,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 157.3 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 535.03 ms. Allocated memory is still 157.3 MB. Free memory was 130.3 MB in the beginning and 109.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 104.92 ms. Allocated memory is still 157.3 MB. Free memory was 109.3 MB in the beginning and 105.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1241.64 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 105.1 MB in the beginning and 160.5 MB in the end (delta: -55.4 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 54465.53 ms. Allocated memory was 188.7 MB in the beginning and 595.6 MB in the end (delta: 406.8 MB). Free memory was 160.0 MB in the beginning and 386.2 MB in the end (delta: -226.2 MB). Peak memory consumption was 181.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int pumpRunning = 0; [L492] int systemActive = 1; [L719] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L795] int retValue_acc ; [L796] int tmp ; [L800] FCALL select_helpers() [L801] FCALL select_features() [L802] CALL, EXPR valid_product() [L879] int retValue_acc ; [L882] retValue_acc = 1 [L883] return (retValue_acc); [L802] RET, EXPR valid_product() [L802] tmp = valid_product() [L804] COND TRUE \read(tmp) [L806] FCALL setup() [L807] CALL runTest() [L786] CALL test() [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 [L424] COND TRUE 1 [L426] COND TRUE splverifierCounter < 4 [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) [L436] CALL waterRise() [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 [L436] RET waterRise() [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND FALSE !(\read(tmp___2)) [L460] tmp___1 = __VERIFIER_nondet_int() [L462] COND TRUE \read(tmp___1) [L464] CALL stopSystem() [L690] COND FALSE !(\read(pumpRunning)) [L697] systemActive = 0 [L464] RET stopSystem() [L471] CALL timeShift() [L499] COND FALSE !(\read(pumpRunning)) [L506] COND FALSE !(\read(systemActive)) [L514] CALL __utac_acc__Specification3_spec__1() [L820] int tmp ; [L821] int tmp___0 ; [L822] int tmp___1 ; [L826] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L826] RET, EXPR isMethaneLevelCritical() [L826] tmp = isMethaneLevelCritical() [L828] COND FALSE !(\read(tmp)) [L832] CALL, EXPR getWaterLevel() [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); [L832] RET, EXPR getWaterLevel() [L832] tmp___0 = getWaterLevel() [L834] COND TRUE tmp___0 == 2 [L836] CALL, EXPR isPumpRunning() [L623] int retValue_acc ; [L626] retValue_acc = pumpRunning [L627] return (retValue_acc); [L836] RET, EXPR isPumpRunning() [L836] tmp___1 = isPumpRunning() [L838] COND FALSE !(\read(tmp___1)) [L842] CALL __automaton_fail() [L714] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product32.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 256 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 54.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 34.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 673 SDtfs, 1783 SDslu, 969 SDs, 0 SdLazy, 5381 SolverSat, 1515 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=894occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 859 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 18.1s InterpolantComputationTime, 331 NumberOfCodeBlocks, 331 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 259 ConstructedInterpolants, 0 QuantifiedInterpolants, 88286 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...