/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 01:13:59,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 01:13:59,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 01:13:59,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 01:13:59,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 01:13:59,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 01:13:59,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 01:13:59,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 01:13:59,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 01:13:59,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 01:13:59,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 01:13:59,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 01:13:59,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 01:13:59,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 01:13:59,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 01:13:59,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 01:13:59,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 01:13:59,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 01:13:59,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 01:13:59,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 01:13:59,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 01:13:59,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 01:13:59,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 01:13:59,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 01:13:59,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 01:13:59,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 01:13:59,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 01:13:59,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 01:13:59,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 01:13:59,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 01:13:59,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 01:13:59,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 01:13:59,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 01:13:59,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 01:13:59,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 01:13:59,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 01:13:59,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 01:13:59,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 01:13:59,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 01:13:59,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 01:13:59,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 01:13:59,175 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 [2020-08-22 01:13:59,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 01:13:59,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 01:13:59,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 01:13:59,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 01:13:59,213 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 01:13:59,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 01:13:59,213 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 01:13:59,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 01:13:59,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 01:13:59,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 01:13:59,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 01:13:59,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 01:13:59,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 01:13:59,216 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 01:13:59,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 01:13:59,216 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 01:13:59,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 01:13:59,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 01:13:59,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 01:13:59,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 01:13:59,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 01:13:59,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 01:13:59,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 01:13:59,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 01:13:59,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 01:13:59,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 01:13:59,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 01:13:59,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 01:13:59,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 01:13:59,219 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-08-22 01:13:59,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 01:13:59,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 01:13:59,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 01:13:59,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 01:13:59,582 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 01:13:59,583 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-08-22 01:13:59,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0671631cf/e82f2e36ca9a4199a814c13253dc6f00/FLAG49a771092 [2020-08-22 01:14:00,235 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 01:14:00,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-08-22 01:14:00,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0671631cf/e82f2e36ca9a4199a814c13253dc6f00/FLAG49a771092 [2020-08-22 01:14:00,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0671631cf/e82f2e36ca9a4199a814c13253dc6f00 [2020-08-22 01:14:00,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 01:14:00,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 01:14:00,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 01:14:00,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 01:14:00,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 01:14:00,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:14:00" (1/1) ... [2020-08-22 01:14:00,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4712c1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:00, skipping insertion in model container [2020-08-22 01:14:00,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:14:00" (1/1) ... [2020-08-22 01:14:00,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 01:14:00,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 01:14:00,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:14:00,947 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 01:14:01,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:14:01,157 INFO L208 MainTranslator]: Completed translation [2020-08-22 01:14:01,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:01 WrapperNode [2020-08-22 01:14:01,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 01:14:01,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 01:14:01,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 01:14:01,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 01:14:01,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:01" (1/1) ... [2020-08-22 01:14:01,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:01" (1/1) ... [2020-08-22 01:14:01,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:01" (1/1) ... [2020-08-22 01:14:01,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:01" (1/1) ... [2020-08-22 01:14:01,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:01" (1/1) ... [2020-08-22 01:14:01,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:01" (1/1) ... [2020-08-22 01:14:01,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:01" (1/1) ... [2020-08-22 01:14:01,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 01:14:01,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 01:14:01,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 01:14:01,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 01:14:01,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:01" (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 [2020-08-22 01:14:01,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 01:14:01,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 01:14:01,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 01:14:01,330 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 01:14:01,330 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 01:14:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 01:14:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 01:14:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 01:14:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 01:14:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 01:14:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 01:14:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 01:14:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 01:14:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 01:14:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 01:14:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 01:14:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 01:14:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 01:14:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 01:14:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 01:14:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 01:14:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 01:14:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 01:14:01,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 01:14:01,334 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 01:14:01,334 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 01:14:01,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 01:14:01,334 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 01:14:01,334 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 01:14:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 01:14:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 01:14:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 01:14:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 01:14:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 01:14:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 01:14:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 01:14:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 01:14:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 01:14:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 01:14:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 01:14:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 01:14:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 01:14:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 01:14:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 01:14:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 01:14:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 01:14:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 01:14:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 01:14:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 01:14:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 01:14:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 01:14:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 01:14:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 01:14:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 01:14:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 01:14:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 01:14:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 01:14:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 01:14:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 01:14:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 01:14:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 01:14:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 01:14:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 01:14:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 01:14:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 01:14:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 01:14:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 01:14:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 01:14:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 01:14:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 01:14:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 01:14:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 01:14:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 01:14:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 01:14:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 01:14:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 01:14:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 01:14:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 01:14:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 01:14:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 01:14:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 01:14:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 01:14:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 01:14:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 01:14:02,605 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 01:14:02,606 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 01:14:02,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:14:02 BoogieIcfgContainer [2020-08-22 01:14:02,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 01:14:02,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 01:14:02,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 01:14:02,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 01:14:02,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 01:14:00" (1/3) ... [2020-08-22 01:14:02,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e52d9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:14:02, skipping insertion in model container [2020-08-22 01:14:02,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:01" (2/3) ... [2020-08-22 01:14:02,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e52d9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:14:02, skipping insertion in model container [2020-08-22 01:14:02,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:14:02" (3/3) ... [2020-08-22 01:14:02,621 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-08-22 01:14:02,631 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 01:14:02,640 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 01:14:02,652 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 01:14:02,677 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 01:14:02,677 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 01:14:02,677 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 01:14:02,678 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 01:14:02,678 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 01:14:02,678 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 01:14:02,678 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 01:14:02,678 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 01:14:02,701 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-08-22 01:14:02,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 01:14:02,711 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:14:02,712 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] [2020-08-22 01:14:02,713 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:14:02,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:14:02,719 INFO L82 PathProgramCache]: Analyzing trace with hash 512275600, now seen corresponding path program 1 times [2020-08-22 01:14:02,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:14:02,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146797222] [2020-08-22 01:14:02,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:14:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:03,444 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:14:03,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:14:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:03,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:14:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:03,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:14:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:03,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:14:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:03,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:14:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:03,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 01:14:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:03,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:14:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:03,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 01:14:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:03,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:14:03,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146797222] [2020-08-22 01:14:03,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:14:03,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 01:14:03,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242044320] [2020-08-22 01:14:03,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 01:14:03,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:14:03,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 01:14:03,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 01:14:03,625 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 3 states. [2020-08-22 01:14:04,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:14:04,729 INFO L93 Difference]: Finished difference Result 231 states and 307 transitions. [2020-08-22 01:14:04,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 01:14:04,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-22 01:14:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:14:04,746 INFO L225 Difference]: With dead ends: 231 [2020-08-22 01:14:04,746 INFO L226 Difference]: Without dead ends: 126 [2020-08-22 01:14:04,751 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 [2020-08-22 01:14:04,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-08-22 01:14:04,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 96. [2020-08-22 01:14:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-08-22 01:14:04,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-08-22 01:14:04,831 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 52 [2020-08-22 01:14:04,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:14:04,832 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-08-22 01:14:04,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 01:14:04,832 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-08-22 01:14:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-22 01:14:04,835 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:14:04,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:14:04,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 01:14:04,836 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:14:04,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:14:04,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1858874248, now seen corresponding path program 1 times [2020-08-22 01:14:04,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:14:04,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357765818] [2020-08-22 01:14:04,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:14:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:05,158 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:14:05,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:14:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:05,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:14:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:05,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:14:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:05,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:14:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:05,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:14:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:05,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 01:14:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:05,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 01:14:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:05,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 01:14:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:05,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:14:05,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357765818] [2020-08-22 01:14:05,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:14:05,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 01:14:05,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562398163] [2020-08-22 01:14:05,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 01:14:05,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:14:05,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 01:14:05,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 01:14:05,230 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-08-22 01:14:05,682 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:14:06,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:14:06,336 INFO L93 Difference]: Finished difference Result 155 states and 188 transitions. [2020-08-22 01:14:06,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 01:14:06,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-22 01:14:06,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:14:06,347 INFO L225 Difference]: With dead ends: 155 [2020-08-22 01:14:06,347 INFO L226 Difference]: Without dead ends: 110 [2020-08-22 01:14:06,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 01:14:06,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-08-22 01:14:06,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 87. [2020-08-22 01:14:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-22 01:14:06,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2020-08-22 01:14:06,408 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 53 [2020-08-22 01:14:06,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:14:06,409 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2020-08-22 01:14:06,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 01:14:06,409 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2020-08-22 01:14:06,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 01:14:06,422 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:14:06,422 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] [2020-08-22 01:14:06,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 01:14:06,423 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:14:06,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:14:06,424 INFO L82 PathProgramCache]: Analyzing trace with hash 865102310, now seen corresponding path program 1 times [2020-08-22 01:14:06,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:14:06,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827621843] [2020-08-22 01:14:06,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:14:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:06,823 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:14:06,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:14:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:06,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:14:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:06,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:14:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:06,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:14:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:06,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:14:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:06,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 01:14:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:06,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 01:14:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:06,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 01:14:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:06,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:14:06,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827621843] [2020-08-22 01:14:06,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:14:06,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 01:14:06,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531291807] [2020-08-22 01:14:06,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 01:14:06,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:14:06,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 01:14:06,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 01:14:06,929 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 8 states. [2020-08-22 01:14:07,342 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:14:07,675 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:14:07,983 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:14:08,281 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:14:08,997 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:14:10,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:14:10,203 INFO L93 Difference]: Finished difference Result 311 states and 384 transitions. [2020-08-22 01:14:10,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 01:14:10,204 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-22 01:14:10,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:14:10,210 INFO L225 Difference]: With dead ends: 311 [2020-08-22 01:14:10,210 INFO L226 Difference]: Without dead ends: 248 [2020-08-22 01:14:10,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-22 01:14:10,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-08-22 01:14:10,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 186. [2020-08-22 01:14:10,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-08-22 01:14:10,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 221 transitions. [2020-08-22 01:14:10,280 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 221 transitions. Word has length 57 [2020-08-22 01:14:10,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:14:10,280 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 221 transitions. [2020-08-22 01:14:10,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 01:14:10,281 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 221 transitions. [2020-08-22 01:14:10,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 01:14:10,282 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:14:10,282 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] [2020-08-22 01:14:10,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 01:14:10,283 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:14:10,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:14:10,283 INFO L82 PathProgramCache]: Analyzing trace with hash 27342424, now seen corresponding path program 1 times [2020-08-22 01:14:10,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:14:10,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857754054] [2020-08-22 01:14:10,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:14:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:10,786 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:14:10,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:14:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:10,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:14:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:14:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:10,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:14:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:10,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:14:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:10,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-22 01:14:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:10,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 01:14:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:10,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 01:14:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:10,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-22 01:14:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:10,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:14:10,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857754054] [2020-08-22 01:14:10,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:14:10,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 01:14:10,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066085894] [2020-08-22 01:14:10,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 01:14:10,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:14:10,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 01:14:10,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-22 01:14:10,871 INFO L87 Difference]: Start difference. First operand 186 states and 221 transitions. Second operand 7 states. [2020-08-22 01:14:11,335 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:14:12,515 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:14:12,846 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:14:13,115 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:14:13,430 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:14:13,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:14:13,717 INFO L93 Difference]: Finished difference Result 524 states and 668 transitions. [2020-08-22 01:14:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 01:14:13,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-08-22 01:14:13,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:14:13,723 INFO L225 Difference]: With dead ends: 524 [2020-08-22 01:14:13,724 INFO L226 Difference]: Without dead ends: 362 [2020-08-22 01:14:13,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-08-22 01:14:13,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-08-22 01:14:13,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341. [2020-08-22 01:14:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-08-22 01:14:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 417 transitions. [2020-08-22 01:14:13,811 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 417 transitions. Word has length 60 [2020-08-22 01:14:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:14:13,812 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 417 transitions. [2020-08-22 01:14:13,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 01:14:13,812 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 417 transitions. [2020-08-22 01:14:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 01:14:13,814 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:14:13,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:14:13,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 01:14:13,815 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:14:13,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:14:13,815 INFO L82 PathProgramCache]: Analyzing trace with hash 2049443282, now seen corresponding path program 1 times [2020-08-22 01:14:13,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:14:13,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209732401] [2020-08-22 01:14:13,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:14:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 01:14:13,881 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 01:14:13,881 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 01:14:13,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 01:14:13,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 01:14:13 BoogieIcfgContainer [2020-08-22 01:14:13,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 01:14:13,921 INFO L168 Benchmark]: Toolchain (without parser) took 13469.60 ms. Allocated memory was 148.9 MB in the beginning and 400.6 MB in the end (delta: 251.7 MB). Free memory was 104.0 MB in the beginning and 201.7 MB in the end (delta: -97.7 MB). Peak memory consumption was 154.0 MB. Max. memory is 7.1 GB. [2020-08-22 01:14:13,923 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 01:14:13,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.80 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 103.8 MB in the beginning and 175.7 MB in the end (delta: -72.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-08-22 01:14:13,933 INFO L168 Benchmark]: Boogie Preprocessor took 92.91 ms. Allocated memory is still 205.0 MB. Free memory was 175.7 MB in the beginning and 171.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-08-22 01:14:13,934 INFO L168 Benchmark]: RCFGBuilder took 1360.51 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 171.7 MB in the beginning and 199.7 MB in the end (delta: -28.0 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-08-22 01:14:13,935 INFO L168 Benchmark]: TraceAbstraction took 11305.18 ms. Allocated memory was 234.4 MB in the beginning and 400.6 MB in the end (delta: 166.2 MB). Free memory was 199.7 MB in the beginning and 201.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 164.3 MB. Max. memory is 7.1 GB. [2020-08-22 01:14:13,948 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.80 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 103.8 MB in the beginning and 175.7 MB in the end (delta: -72.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.91 ms. Allocated memory is still 205.0 MB. Free memory was 175.7 MB in the beginning and 171.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1360.51 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 171.7 MB in the beginning and 199.7 MB in the end (delta: -28.0 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11305.18 ms. Allocated memory was 234.4 MB in the beginning and 400.6 MB in the end (delta: 166.2 MB). Free memory was 199.7 MB in the beginning and 201.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 164.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 650]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L119] int pumpRunning = 0; [L120] int systemActive = 1; [L411] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L690] int cleanupTimeShifts = 4; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L763] int retValue_acc ; [L764] int tmp ; [L768] FCALL select_helpers() [L769] FCALL select_features() [L770] CALL, EXPR valid_product() [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); [L770] RET, EXPR valid_product() [L770] tmp = valid_product() [L772] COND TRUE \read(tmp) [L774] FCALL setup() [L775] CALL runTest() [L757] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L804] COND TRUE waterLevel < 2 [L805] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L127] COND FALSE !(\read(pumpRunning)) [L134] COND TRUE \read(systemActive) [L136] FCALL processEnvironment() [L142] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L182] int retValue_acc ; [L185] retValue_acc = pumpRunning [L186] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L650] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 203 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 349 SDtfs, 467 SDslu, 318 SDs, 0 SdLazy, 1249 SolverSat, 248 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 136 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 286 NumberOfCodeBlocks, 286 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 59906 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...