/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:41:57,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:41:57,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:41:57,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:41:57,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:41:57,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:41:57,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:41:57,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:41:57,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:41:57,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:41:57,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:41:57,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:41:57,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:41:57,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:41:57,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:41:57,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:41:57,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:41:57,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:41:57,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:41:57,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:41:57,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:41:57,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:41:57,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:41:57,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:41:57,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:41:57,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:41:57,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:41:57,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:41:57,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:41:57,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:41:57,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:41:57,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:41:57,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:41:57,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:41:57,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:41:57,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:41:57,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:41:57,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:41:57,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:41:57,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:41:57,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:41:57,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:41:58,033 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:41:58,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:41:58,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:41:58,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:41:58,036 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:41:58,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:41:58,037 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:41:58,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:41:58,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:41:58,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:41:58,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:41:58,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:41:58,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:41:58,039 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:41:58,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:41:58,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:41:58,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:41:58,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:41:58,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:41:58,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:41:58,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:41:58,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:41:58,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:41:58,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:41:58,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:41:58,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:41:58,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:41:58,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:41:58,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:41:58,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:41:58,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:41:58,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:41:58,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:41:58,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:41:58,589 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:41:58,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-25 00:41:58,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aba5bf60/2ce893c8e1984f9382e2e82b0635fa0a/FLAG560aec4ce [2020-09-25 00:41:59,328 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:41:59,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-25 00:41:59,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aba5bf60/2ce893c8e1984f9382e2e82b0635fa0a/FLAG560aec4ce [2020-09-25 00:41:59,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aba5bf60/2ce893c8e1984f9382e2e82b0635fa0a [2020-09-25 00:41:59,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:41:59,580 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:41:59,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:41:59,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:41:59,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:41:59,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:41:59" (1/1) ... [2020-09-25 00:41:59,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a612428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:59, skipping insertion in model container [2020-09-25 00:41:59,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:41:59" (1/1) ... [2020-09-25 00:41:59,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:41:59,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:42:00,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:00,206 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:42:00,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:00,322 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:42:00,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:00 WrapperNode [2020-09-25 00:42:00,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:00,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:42:00,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:42:00,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:42:00,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:00" (1/1) ... [2020-09-25 00:42:00,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:00" (1/1) ... [2020-09-25 00:42:00,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:00" (1/1) ... [2020-09-25 00:42:00,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:00" (1/1) ... [2020-09-25 00:42:00,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:00" (1/1) ... [2020-09-25 00:42:00,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:00" (1/1) ... [2020-09-25 00:42:00,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:00" (1/1) ... [2020-09-25 00:42:00,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:42:00,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:42:00,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:42:00,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:42:00,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:42:00,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:42:00,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:42:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:42:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:42:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:42:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:42:00,537 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:42:00,538 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:42:00,538 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:42:00,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:42:00,538 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:42:00,539 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:42:00,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:00,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:00,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:00,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:42:00,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:42:00,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:42:00,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:00,542 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:42:00,542 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:42:00,542 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:42:00,543 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:42:00,543 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:42:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:42:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:42:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:42:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:42:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:42:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:42:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:42:00,546 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:42:00,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:42:00,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:42:00,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:42:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:42:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:42:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:42:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:42:00,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:42:00,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:42:00,550 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:42:00,550 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:42:00,550 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:42:00,551 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:42:00,552 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:42:00,552 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:42:00,552 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:42:00,552 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:42:00,552 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:42:00,553 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:42:00,553 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:42:00,553 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:42:00,553 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:42:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:42:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:42:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:42:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:42:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:42:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:42:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:42:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:42:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:42:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:42:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:42:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:42:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:42:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:42:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:42:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:42:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:42:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:42:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:42:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:42:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:42:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:42:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:42:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:42:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:42:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:42:01,713 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:42:01,713 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:42:01,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:01 BoogieIcfgContainer [2020-09-25 00:42:01,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:42:01,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:42:01,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:42:01,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:42:01,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:41:59" (1/3) ... [2020-09-25 00:42:01,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c48a2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:01, skipping insertion in model container [2020-09-25 00:42:01,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:00" (2/3) ... [2020-09-25 00:42:01,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c48a2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:01, skipping insertion in model container [2020-09-25 00:42:01,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:01" (3/3) ... [2020-09-25 00:42:01,731 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-09-25 00:42:01,742 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:42:01,754 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:42:01,775 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:42:01,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:42:01,808 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:42:01,808 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:42:01,808 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:42:01,808 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:42:01,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:42:01,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:42:01,809 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:42:01,837 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-25 00:42:01,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:42:01,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:01,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:01,856 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:01,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:01,863 INFO L82 PathProgramCache]: Analyzing trace with hash 957582246, now seen corresponding path program 1 times [2020-09-25 00:42:01,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:01,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880006055] [2020-09-25 00:42:01,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:04,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:07,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:42:07,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:42:07,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 00:42:07,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:42:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:07,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:42:07,694 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:07,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:07,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:07,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:07,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:07,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 00:42:07,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:07,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:07,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:07,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:07,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 00:42:07,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:07,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:07,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:07,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:07,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:07,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:07,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:07,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:07,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:07,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:07,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:07,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:07,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:07,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:07,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:07,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:07,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:07,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:07,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:07,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:07,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:07,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:07,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:07,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:07,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:07,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:07,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:07,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:07,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:07,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:07,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:07,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:42:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:07,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:07,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:07,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:07,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:07,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:07,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:42:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:07,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:07,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:07,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:07,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:07,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:07,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:42:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:07,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:07,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:07,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:07,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:07,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:07,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:07,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:07,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:07,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:08,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880006055] [2020-09-25 00:42:08,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:08,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:42:08,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247596069] [2020-09-25 00:42:08,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:42:08,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:08,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:42:08,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:42:08,096 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-09-25 00:42:09,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:09,492 INFO L93 Difference]: Finished difference Result 427 states and 514 transitions. [2020-09-25 00:42:09,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:42:09,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:42:09,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:09,530 INFO L225 Difference]: With dead ends: 427 [2020-09-25 00:42:09,530 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 00:42:09,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:42:09,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 00:42:09,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230. [2020-09-25 00:42:09,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 00:42:09,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 250 transitions. [2020-09-25 00:42:09,728 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 250 transitions. Word has length 153 [2020-09-25 00:42:09,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:09,732 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 250 transitions. [2020-09-25 00:42:09,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:42:09,736 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 250 transitions. [2020-09-25 00:42:09,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:42:09,747 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:09,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:09,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:42:09,748 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:09,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:09,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1482403721, now seen corresponding path program 1 times [2020-09-25 00:42:09,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:09,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722612012] [2020-09-25 00:42:09,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:09,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:09,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:11,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:14,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:14,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:42:14,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:42:14,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 00:42:14,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:42:14,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:42:14,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:15,159 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:15,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:15,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:15,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:15,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:15,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 00:42:15,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:15,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:15,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:15,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:15,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:15,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:15,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:15,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:15,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:15,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:15,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:15,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:15,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:15,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:15,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:15,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:15,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:15,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:15,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:15,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:15,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:15,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:15,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:15,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:15,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:15,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:15,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:15,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:15,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:15,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:15,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:15,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:15,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:15,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:15,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:15,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:15,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:15,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:15,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:42:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:15,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:15,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:15,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:15,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:15,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:15,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:15,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:15,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:42:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:15,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:15,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:15,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:15,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:15,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:15,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:15,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:15,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:15,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:15,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:15,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:42:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:15,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:15,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:15,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:15,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:15,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:15,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:15,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:15,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:15,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722612012] [2020-09-25 00:42:15,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:15,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:42:15,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178043992] [2020-09-25 00:42:15,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:42:15,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:15,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:42:15,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:42:15,398 INFO L87 Difference]: Start difference. First operand 230 states and 250 transitions. Second operand 4 states. [2020-09-25 00:42:16,056 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:42:16,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:16,953 INFO L93 Difference]: Finished difference Result 338 states and 381 transitions. [2020-09-25 00:42:16,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:42:16,960 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:42:16,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:16,965 INFO L225 Difference]: With dead ends: 338 [2020-09-25 00:42:16,965 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 00:42:16,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:42:16,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 00:42:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 220. [2020-09-25 00:42:17,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-25 00:42:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 237 transitions. [2020-09-25 00:42:17,020 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 237 transitions. Word has length 154 [2020-09-25 00:42:17,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:17,021 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 237 transitions. [2020-09-25 00:42:17,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:42:17,021 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 237 transitions. [2020-09-25 00:42:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 00:42:17,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:17,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:17,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:42:17,024 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:17,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:17,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1724777335, now seen corresponding path program 1 times [2020-09-25 00:42:17,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:17,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951199608] [2020-09-25 00:42:17,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:17,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:17,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 00:42:21,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:42:21,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3994 [2020-09-25 00:42:21,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:42:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 00:42:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 00:42:21,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:21,426 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:21,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:21,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 00:42:21,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 00:42:21,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:21,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:21,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:21,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:21,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:21,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:21,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:21,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:21,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:21,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:21,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:42:21,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:21,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:42:21,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:21,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:21,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:21,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:21,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:42:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:21,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:21,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:21,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:21,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:42:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:21,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:42:21,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:42:21,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:21,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:21,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 00:42:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:21,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:21,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:21,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:21,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951199608] [2020-09-25 00:42:21,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:21,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:42:21,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244871645] [2020-09-25 00:42:21,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:42:21,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:21,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:42:21,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:42:21,955 INFO L87 Difference]: Start difference. First operand 220 states and 237 transitions. Second operand 8 states. [2020-09-25 00:42:22,522 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:42:24,188 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:42:24,542 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:24,884 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:42:25,269 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:42:25,574 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:25,938 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:42:26,237 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:42:26,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:26,755 INFO L93 Difference]: Finished difference Result 465 states and 542 transitions. [2020-09-25 00:42:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:42:26,756 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-09-25 00:42:26,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:26,766 INFO L225 Difference]: With dead ends: 465 [2020-09-25 00:42:26,766 INFO L226 Difference]: Without dead ends: 355 [2020-09-25 00:42:26,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:42:26,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-09-25 00:42:26,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 322. [2020-09-25 00:42:26,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-09-25 00:42:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 360 transitions. [2020-09-25 00:42:26,866 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 360 transitions. Word has length 163 [2020-09-25 00:42:26,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:26,868 INFO L479 AbstractCegarLoop]: Abstraction has 322 states and 360 transitions. [2020-09-25 00:42:26,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:42:26,868 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 360 transitions. [2020-09-25 00:42:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 00:42:26,871 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:26,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:26,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:42:26,871 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:26,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:26,872 INFO L82 PathProgramCache]: Analyzing trace with hash -566413449, now seen corresponding path program 1 times [2020-09-25 00:42:26,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:26,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095410956] [2020-09-25 00:42:26,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:26,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 00:42:27,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1050 [2020-09-25 00:42:27,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:42:27,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 00:42:27,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:42:27,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:28,308 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:28,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:28,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:28,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:28,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:28,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:28,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 00:42:28,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:42:28,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:28,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:28,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:28,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:28,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:28,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:28,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:28,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:28,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:28,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:28,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:28,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:28,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:28,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:28,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:28,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:28,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:28,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:28,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:28,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:28,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:28,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:28,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:28,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:42:28,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:28,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:28,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:28,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:28,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:28,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:28,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:28,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:28,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:28,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:28,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:28,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:28,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:28,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:28,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:28,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:28,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 00:42:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:28,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:28,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:28,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:42:28,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:42:28,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:42:28,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:28,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 00:42:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:28,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:28,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:28,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:28,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:28,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:28,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:28,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:28,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:28,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:28,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:28,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 00:42:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:28,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:28,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:28,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:28,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:28,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:28,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:28,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:28,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:28,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:28,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:28,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 00:42:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:28,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:28,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:28,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:28,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:28,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:28,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:28,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:28,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:28,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:28,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:28,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:28,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095410956] [2020-09-25 00:42:28,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:28,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:42:28,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288514951] [2020-09-25 00:42:28,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:42:28,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:28,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:42:28,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:42:28,708 INFO L87 Difference]: Start difference. First operand 322 states and 360 transitions. Second operand 6 states. [2020-09-25 00:42:29,244 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:42:30,021 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:42:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:31,934 INFO L93 Difference]: Finished difference Result 945 states and 1119 transitions. [2020-09-25 00:42:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:42:31,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-25 00:42:31,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:31,948 INFO L225 Difference]: With dead ends: 945 [2020-09-25 00:42:31,952 INFO L226 Difference]: Without dead ends: 733 [2020-09-25 00:42:31,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:42:31,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-09-25 00:42:32,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 675. [2020-09-25 00:42:32,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2020-09-25 00:42:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 779 transitions. [2020-09-25 00:42:32,115 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 779 transitions. Word has length 168 [2020-09-25 00:42:32,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:32,116 INFO L479 AbstractCegarLoop]: Abstraction has 675 states and 779 transitions. [2020-09-25 00:42:32,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:42:32,116 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 779 transitions. [2020-09-25 00:42:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 00:42:32,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:32,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:32,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:42:32,120 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:32,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:32,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1861287888, now seen corresponding path program 1 times [2020-09-25 00:42:32,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:32,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990681391] [2020-09-25 00:42:32,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:42:32,191 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:42:32,192 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:42:32,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:42:32,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:42:32 BoogieIcfgContainer [2020-09-25 00:42:32,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:42:32,234 INFO L168 Benchmark]: Toolchain (without parser) took 32657.45 ms. Allocated memory was 140.0 MB in the beginning and 577.2 MB in the end (delta: 437.3 MB). Free memory was 102.5 MB in the beginning and 193.6 MB in the end (delta: -91.1 MB). Peak memory consumption was 346.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:32,236 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 00:42:32,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.45 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 172.0 MB in the end (delta: -70.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:32,244 INFO L168 Benchmark]: Boogie Preprocessor took 106.59 ms. Allocated memory is still 203.4 MB. Free memory was 172.0 MB in the beginning and 168.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:32,245 INFO L168 Benchmark]: RCFGBuilder took 1290.66 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 168.0 MB in the beginning and 179.7 MB in the end (delta: -11.7 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:32,246 INFO L168 Benchmark]: TraceAbstraction took 30509.60 ms. Allocated memory was 235.9 MB in the beginning and 577.2 MB in the end (delta: 341.3 MB). Free memory was 179.7 MB in the beginning and 193.6 MB in the end (delta: -13.9 MB). Peak memory consumption was 327.4 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:32,258 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.45 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 172.0 MB in the end (delta: -70.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.59 ms. Allocated memory is still 203.4 MB. Free memory was 172.0 MB in the beginning and 168.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1290.66 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 168.0 MB in the beginning and 179.7 MB in the end (delta: -11.7 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30509.60 ms. Allocated memory was 235.9 MB in the beginning and 577.2 MB in the end (delta: 341.3 MB). Free memory was 179.7 MB in the beginning and 193.6 MB in the end (delta: -13.9 MB). Peak memory consumption was 327.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L165] int retValue_acc ; [L166] int tmp ; [L170] FCALL select_helpers() [L171] FCALL select_features() [L172] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L172] RET, EXPR valid_product() [L172] tmp = valid_product() [L174] COND TRUE \read(tmp) [L176] FCALL setup() [L177] CALL runTest() [L159] CALL test() [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) [L766] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L766] RET waterRise() [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND FALSE !(\read(tmp___0)) [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) [L799] CALL timeShift() [L603] COND FALSE !(\read(pumpRunning)) [L610] COND TRUE \read(systemActive) [L612] CALL processEnvironment() [L632] int tmp ; [L635] COND FALSE !(\read(pumpRunning)) [L650] FCALL processEnvironment__wrappee__base() [L612] RET processEnvironment() [L618] CALL __utac_acc__Specification3_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L564] CALL, EXPR isMethaneLevelCritical() [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] return (retValue_acc); [L564] RET, EXPR isMethaneLevelCritical() [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L570] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L570] RET, EXPR getWaterLevel() [L570] tmp___0 = getWaterLevel() [L572] COND TRUE tmp___0 == 2 [L574] CALL, EXPR isPumpRunning() [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] return (retValue_acc); [L574] RET, EXPR isPumpRunning() [L574] tmp___1 = isPumpRunning() [L576] COND FALSE !(\read(tmp___1)) [L580] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 596 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 889 SDtfs, 1024 SDslu, 941 SDs, 0 SdLazy, 1968 SolverSat, 354 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=675occurred 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, 166 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.9s InterpolantComputationTime, 814 NumberOfCodeBlocks, 814 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 634 ConstructedInterpolants, 0 QuantifiedInterpolants, 255464 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...