/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=DEEPEST --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_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:12:29,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:12:29,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:12:29,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:12:29,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:12:29,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:12:29,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:12:29,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:12:29,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:12:29,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:12:29,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:12:29,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:12:29,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:12:29,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:12:29,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:12:29,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:12:29,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:12:29,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:12:29,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:12:29,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:12:29,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:12:29,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:12:29,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:12:29,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:12:29,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:12:29,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:12:29,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:12:29,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:12:29,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:12:29,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:12:29,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:12:29,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:12:29,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:12:29,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:12:29,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:12:29,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:12:29,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:12:29,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:12:29,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:12:29,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:12:29,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:12:29,472 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 [2020-10-27 22:12:29,498 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:12:29,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:12:29,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:12:29,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:12:29,501 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:12:29,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:12:29,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:12:29,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:12:29,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:12:29,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:12:29,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:12:29,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:12:29,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:12:29,502 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:12:29,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:12:29,503 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:12:29,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:12:29,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:12:29,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:12:29,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:12:29,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:12:29,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:12:29,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:12:29,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:12:29,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:12:29,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:12:29,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:12:29,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:12:29,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:12:29,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:12:29,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:12:29,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:12:29,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:12:29,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:12:29,953 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:12:29,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-10-27 22:12:30,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba8dc1bc2/5bb6a1bdff6e4a59a9e6677c68aa0e14/FLAGa9bea6a5c [2020-10-27 22:12:30,732 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:12:30,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-10-27 22:12:30,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba8dc1bc2/5bb6a1bdff6e4a59a9e6677c68aa0e14/FLAGa9bea6a5c [2020-10-27 22:12:31,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba8dc1bc2/5bb6a1bdff6e4a59a9e6677c68aa0e14 [2020-10-27 22:12:31,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:12:31,035 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:12:31,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:12:31,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:12:31,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:12:31,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dbcf313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31, skipping insertion in model container [2020-10-27 22:12:31,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:12:31,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:12:31,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:12:31,511 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:12:31,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:12:31,780 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:12:31,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31 WrapperNode [2020-10-27 22:12:31,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:12:31,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:12:31,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:12:31,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:12:31,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:12:31,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:12:31,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:12:31,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:12:31,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:12:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:12:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:12:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 22:12:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:12:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 22:12:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 22:12:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 22:12:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 22:12:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 22:12:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 22:12:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 22:12:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 22:12:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 22:12:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 22:12:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 22:12:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 22:12:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 22:12:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 22:12:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 22:12:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 22:12:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 22:12:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 22:12:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 22:12:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 22:12:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 22:12:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:12:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 22:12:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 22:12:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 22:12:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 22:12:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:12:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 22:12:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 22:12:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 22:12:32,029 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 22:12:32,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 22:12:32,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 22:12:32,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 22:12:32,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 22:12:32,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 22:12:32,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 22:12:32,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 22:12:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:12:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:12:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:12:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:12:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:12:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 22:12:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 22:12:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 22:12:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 22:12:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 22:12:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 22:12:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 22:12:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 22:12:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 22:12:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 22:12:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 22:12:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 22:12:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 22:12:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 22:12:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 22:12:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 22:12:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 22:12:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:12:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 22:12:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 22:12:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 22:12:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 22:12:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 22:12:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 22:12:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 22:12:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 22:12:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 22:12:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 22:12:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 22:12:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 22:12:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 22:12:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:12:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 22:12:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 22:12:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 22:12:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 22:12:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 22:12:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 22:12:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:12:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 22:12:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 22:12:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:12:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 22:12:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 22:12:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:12:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 22:12:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 22:12:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 22:12:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:12:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:12:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:12:33,534 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:12:33,534 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 22:12:33,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:12:33 BoogieIcfgContainer [2020-10-27 22:12:33,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:12:33,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:12:33,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:12:33,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:12:33,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:12:31" (1/3) ... [2020-10-27 22:12:33,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13384253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:12:33, skipping insertion in model container [2020-10-27 22:12:33,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (2/3) ... [2020-10-27 22:12:33,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13384253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:12:33, skipping insertion in model container [2020-10-27 22:12:33,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:12:33" (3/3) ... [2020-10-27 22:12:33,546 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-10-27 22:12:33,558 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:12:33,564 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 22:12:33,578 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 22:12:33,607 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:12:33,608 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:12:33,608 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:12:33,608 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:12:33,608 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:12:33,608 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:12:33,609 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:12:33,609 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:12:33,631 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-10-27 22:12:33,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 22:12:33,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:12:33,644 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] [2020-10-27 22:12:33,645 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]=== [2020-10-27 22:12:33,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:12:33,652 INFO L82 PathProgramCache]: Analyzing trace with hash 445197258, now seen corresponding path program 1 times [2020-10-27 22:12:33,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:12:33,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152650054] [2020-10-27 22:12:33,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:12:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:34,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:34,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:35,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:37,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:37,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 22:12:37,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:12:37,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3267 [2020-10-27 22:12:37,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:37,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:37,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 22:12:37,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:37,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-27 22:12:38,290 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:12:38,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:12:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:38,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 22:12:38,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:38,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:12:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:38,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:38,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:38,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:12:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:38,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:38,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:12:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:38,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:38,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:12:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:38,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:38,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:12:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:38,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:38,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:38,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:12:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:38,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:38,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:12:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:38,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:12:38,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152650054] [2020-10-27 22:12:38,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:12:38,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:12:38,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011924401] [2020-10-27 22:12:38,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:12:38,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:12:38,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:12:38,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:12:38,475 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 3 states. [2020-10-27 22:12:40,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:12:40,408 INFO L93 Difference]: Finished difference Result 328 states and 427 transitions. [2020-10-27 22:12:40,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:12:40,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-27 22:12:40,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:12:40,433 INFO L225 Difference]: With dead ends: 328 [2020-10-27 22:12:40,433 INFO L226 Difference]: Without dead ends: 175 [2020-10-27 22:12:40,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:12:40,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-27 22:12:40,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 141. [2020-10-27 22:12:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-10-27 22:12:40,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 166 transitions. [2020-10-27 22:12:40,571 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 166 transitions. Word has length 53 [2020-10-27 22:12:40,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:12:40,572 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 166 transitions. [2020-10-27 22:12:40,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:12:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 166 transitions. [2020-10-27 22:12:40,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 22:12:40,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:12:40,582 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] [2020-10-27 22:12:40,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:12:40,583 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]=== [2020-10-27 22:12:40,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:12:40,585 INFO L82 PathProgramCache]: Analyzing trace with hash -871018240, now seen corresponding path program 1 times [2020-10-27 22:12:40,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:12:40,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593691621] [2020-10-27 22:12:40,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:12:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:40,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:40,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:40,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:44,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:44,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 22:12:44,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:12:44,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4054 [2020-10-27 22:12:44,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 22:12:44,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:12:44,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:45,123 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:12:45,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:12:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:45,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:45,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:45,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:45,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:45,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 22:12:45,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:45,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:45,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:12:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:45,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:45,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:45,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:45,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:45,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:12:45,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:45,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:45,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 22:12:45,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:12:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:45,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:45,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:45,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:45,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:45,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:12:45,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:45,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:45,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:12:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:45,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:45,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:45,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:45,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:45,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:45,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:45,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:45,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:45,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:45,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:45,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:12:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:45,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:45,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:45,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:45,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:45,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:45,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:45,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:45,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:45,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:12:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:45,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:45,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:45,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:45,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:45,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:45,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:45,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:45,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 22:12:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:45,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:45,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:45,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:45,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:45,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:45,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:45,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:45,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:45,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:45,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:45,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 22:12:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:45,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:45,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:45,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:45,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:45,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:45,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:45,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:45,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:45,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:12:45,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:12:45,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593691621] [2020-10-27 22:12:45,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:12:45,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:12:45,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247020970] [2020-10-27 22:12:45,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:12:45,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:12:45,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:12:45,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:12:45,322 INFO L87 Difference]: Start difference. First operand 141 states and 166 transitions. Second operand 4 states. [2020-10-27 22:12:45,984 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:12:47,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:12:47,194 INFO L93 Difference]: Finished difference Result 252 states and 306 transitions. [2020-10-27 22:12:47,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:12:47,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-27 22:12:47,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:12:47,198 INFO L225 Difference]: With dead ends: 252 [2020-10-27 22:12:47,198 INFO L226 Difference]: Without dead ends: 159 [2020-10-27 22:12:47,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:12:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-27 22:12:47,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 132. [2020-10-27 22:12:47,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-27 22:12:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2020-10-27 22:12:47,256 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 54 [2020-10-27 22:12:47,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:12:47,257 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2020-10-27 22:12:47,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:12:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2020-10-27 22:12:47,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 22:12:47,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:12:47,260 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] [2020-10-27 22:12:47,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:12:47,261 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]=== [2020-10-27 22:12:47,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:12:47,261 INFO L82 PathProgramCache]: Analyzing trace with hash -775134205, now seen corresponding path program 1 times [2020-10-27 22:12:47,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:12:47,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398241220] [2020-10-27 22:12:47,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:12:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:47,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:47,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:49,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:49,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 22:12:49,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:12:49,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1919 [2020-10-27 22:12:49,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:49,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:12:49,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:49,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 22:12:49,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:49,614 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:12:49,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:12:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:49,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:49,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:49,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:49,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:49,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-27 22:12:49,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:12:49,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:49,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:12:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:49,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:49,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:49,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:49,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:49,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:49,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:49,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:49,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:49,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:49,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:49,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:12:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:49,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:49,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:49,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:49,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:49,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:49,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:49,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:49,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:49,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:49,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:49,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:12:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:49,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:49,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:49,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:49,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:49,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:49,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:49,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:49,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:12:49,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:49,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:12:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:49,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:49,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:49,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:49,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:49,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:49,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:49,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:12:49,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:12:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:49,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:49,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:49,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:49,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:49,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:49,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:49,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:49,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:49,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:49,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:49,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:12:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:49,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:49,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:49,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:49,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:49,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:12:49,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:49,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:49,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:49,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:49,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:49,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:12:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:49,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:49,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:49,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:49,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:49,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:12:49,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:49,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:49,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:12:49,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398241220] [2020-10-27 22:12:49,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:12:49,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:12:49,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355540626] [2020-10-27 22:12:49,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:12:49,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:12:49,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:12:49,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:12:49,886 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 4 states. [2020-10-27 22:12:50,334 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:12:52,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:12:52,394 INFO L93 Difference]: Finished difference Result 387 states and 476 transitions. [2020-10-27 22:12:52,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:12:52,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-27 22:12:52,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:12:52,405 INFO L225 Difference]: With dead ends: 387 [2020-10-27 22:12:52,405 INFO L226 Difference]: Without dead ends: 279 [2020-10-27 22:12:52,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:12:52,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-27 22:12:52,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 233. [2020-10-27 22:12:52,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-27 22:12:52,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 278 transitions. [2020-10-27 22:12:52,521 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 278 transitions. Word has length 58 [2020-10-27 22:12:52,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:12:52,521 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 278 transitions. [2020-10-27 22:12:52,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:12:52,521 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 278 transitions. [2020-10-27 22:12:52,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 22:12:52,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:12:52,525 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] [2020-10-27 22:12:52,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:12:52,525 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]=== [2020-10-27 22:12:52,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:12:52,526 INFO L82 PathProgramCache]: Analyzing trace with hash -330865691, now seen corresponding path program 1 times [2020-10-27 22:12:52,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:12:52,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347760963] [2020-10-27 22:12:52,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:12:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:52,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:53,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:53,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 22:12:53,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:53,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1016 [2020-10-27 22:12:53,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:12:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 22:12:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:54,031 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:12:54,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:12:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:54,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:54,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:54,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:54,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:54,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 22:12:54,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:12:54,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:54,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:12:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:54,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:54,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:54,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:54,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:54,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:54,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:54,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:54,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:12:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:54,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:54,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:54,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:54,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:54,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:54,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:54,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:54,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:54,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:54,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:54,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:12:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:54,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:54,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:54,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:54,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:54,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:54,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:12:54,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:54,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:12:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:54,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:54,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:54,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:54,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:54,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:12:54,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:54,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:54,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:12:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:54,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:54,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:54,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:12:54,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:54,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:54,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:54,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:54,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:54,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:12:54,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:54,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:12:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:54,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:54,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:54,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:54,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:54,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:54,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:54,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:54,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:54,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:12:54,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:54,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:12:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:54,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:54,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:54,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:54,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:54,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:12:54,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:12:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:12:54,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:54,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 22:12:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:54,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:54,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:54,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:54,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:54,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:54,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:54,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:54,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:54,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:54,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:12:54,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347760963] [2020-10-27 22:12:54,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:12:54,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 22:12:54,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790425966] [2020-10-27 22:12:54,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:12:54,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:12:54,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:12:54,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:12:54,282 INFO L87 Difference]: Start difference. First operand 233 states and 278 transitions. Second operand 9 states. [2020-10-27 22:12:54,850 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:12:57,033 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:12:57,632 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:12:58,098 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:12:58,542 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:12:59,145 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:13:00,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:13:00,518 INFO L93 Difference]: Finished difference Result 736 states and 993 transitions. [2020-10-27 22:13:00,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:13:00,519 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-27 22:13:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:13:00,526 INFO L225 Difference]: With dead ends: 736 [2020-10-27 22:13:00,526 INFO L226 Difference]: Without dead ends: 527 [2020-10-27 22:13:00,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:13:00,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-10-27 22:13:00,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 430. [2020-10-27 22:13:00,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-27 22:13:00,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 529 transitions. [2020-10-27 22:13:00,675 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 529 transitions. Word has length 64 [2020-10-27 22:13:00,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:13:00,676 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 529 transitions. [2020-10-27 22:13:00,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:13:00,676 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 529 transitions. [2020-10-27 22:13:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 22:13:00,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:13:00,680 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] [2020-10-27 22:13:00,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:13:00,680 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]=== [2020-10-27 22:13:00,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:13:00,681 INFO L82 PathProgramCache]: Analyzing trace with hash 915625439, now seen corresponding path program 1 times [2020-10-27 22:13:00,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:13:00,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696280274] [2020-10-27 22:13:00,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:13:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:13:00,734 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:13:00,734 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:13:00,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:13:00,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:13:00 BoogieIcfgContainer [2020-10-27 22:13:00,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:13:00,766 INFO L168 Benchmark]: Toolchain (without parser) took 29735.60 ms. Allocated memory was 152.0 MB in the beginning and 463.5 MB in the end (delta: 311.4 MB). Free memory was 131.1 MB in the beginning and 255.8 MB in the end (delta: -124.7 MB). Peak memory consumption was 186.7 MB. Max. memory is 8.0 GB. [2020-10-27 22:13:00,766 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 152.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:13:00,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.96 ms. Allocated memory is still 152.0 MB. Free memory was 130.5 MB in the beginning and 126.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. [2020-10-27 22:13:00,768 INFO L168 Benchmark]: Boogie Preprocessor took 147.28 ms. Allocated memory is still 152.0 MB. Free memory was 126.7 MB in the beginning and 122.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 22:13:00,769 INFO L168 Benchmark]: RCFGBuilder took 1605.73 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 122.9 MB in the beginning and 110.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 44.5 MB. Max. memory is 8.0 GB. [2020-10-27 22:13:00,770 INFO L168 Benchmark]: TraceAbstraction took 27225.18 ms. Allocated memory was 182.5 MB in the beginning and 463.5 MB in the end (delta: 281.0 MB). Free memory was 109.7 MB in the beginning and 255.8 MB in the end (delta: -146.0 MB). Peak memory consumption was 135.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:13:00,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 152.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 745.96 ms. Allocated memory is still 152.0 MB. Free memory was 130.5 MB in the beginning and 126.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 147.28 ms. Allocated memory is still 152.0 MB. Free memory was 126.7 MB in the beginning and 122.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1605.73 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 122.9 MB in the beginning and 110.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 44.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 27225.18 ms. Allocated memory was 182.5 MB in the beginning and 463.5 MB in the end (delta: 281.0 MB). Free memory was 109.7 MB in the beginning and 255.8 MB in the end (delta: -146.0 MB). Peak memory consumption was 135.0 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: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L227] int pumpRunning = 0; [L228] int systemActive = 1; [L475] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L551] int retValue_acc ; [L552] int tmp ; [L556] FCALL select_helpers() [L557] FCALL select_features() [L558] CALL, EXPR valid_product() [L600] int retValue_acc ; [L603] retValue_acc = 1 [L604] return (retValue_acc); [L558] RET, EXPR valid_product() [L558] tmp = valid_product() [L560] COND TRUE \read(tmp) [L562] FCALL setup() [L563] CALL runTest() [L542] CALL test() [L157] int splverifierCounter ; [L158] int tmp ; [L159] int tmp___0 ; [L160] int tmp___1 ; [L161] int tmp___2 ; [L164] splverifierCounter = 0 [L166] COND TRUE 1 [L168] COND TRUE splverifierCounter < 4 [L174] tmp = __VERIFIER_nondet_int() [L176] COND TRUE \read(tmp) [L178] CALL waterRise() [L68] COND TRUE waterLevel < 2 [L69] waterLevel = waterLevel + 1 [L178] RET waterRise() [L184] tmp___0 = __VERIFIER_nondet_int() [L186] COND FALSE !(\read(tmp___0)) [L194] tmp___2 = __VERIFIER_nondet_int() [L196] COND FALSE !(\read(tmp___2)) [L200] tmp___1 = __VERIFIER_nondet_int() [L202] COND TRUE \read(tmp___1) [L204] CALL stopSystem() [L428] COND FALSE !(\read(pumpRunning)) [L435] systemActive = 0 [L204] RET stopSystem() [L211] CALL timeShift() [L235] COND FALSE !(\read(pumpRunning)) [L242] COND FALSE !(\read(systemActive)) [L250] CALL __utac_acc__Specification3_spec__1() [L442] int tmp ; [L443] int tmp___0 ; [L444] int tmp___1 ; [L448] CALL, EXPR isMethaneLevelCritical() [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); [L448] RET, EXPR isMethaneLevelCritical() [L448] tmp = isMethaneLevelCritical() [L450] COND FALSE !(\read(tmp)) [L454] CALL, EXPR getWaterLevel() [L121] int retValue_acc ; [L124] retValue_acc = waterLevel [L125] return (retValue_acc); [L454] RET, EXPR getWaterLevel() [L454] tmp___0 = getWaterLevel() [L456] COND TRUE tmp___0 == 2 [L458] CALL, EXPR isPumpRunning() [L342] int retValue_acc ; [L345] retValue_acc = pumpRunning [L346] return (retValue_acc); [L458] RET, EXPR isPumpRunning() [L458] tmp___1 = isPumpRunning() [L460] COND FALSE !(\read(tmp___1)) [L464] CALL __automaton_fail() [L979] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product51.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: 27.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 525 SDtfs, 728 SDslu, 282 SDs, 0 SdLazy, 1561 SolverSat, 399 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=430occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 204 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 68212 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...