/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 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 [2020-08-21 13:56:33,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:56:33,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:56:33,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:56:33,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:56:33,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:56:33,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:56:33,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:56:33,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:56:33,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:56:33,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:56:33,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:56:33,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:56:33,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:56:33,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:56:33,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:56:33,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:56:33,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:56:33,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:56:33,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:56:33,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:56:33,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:56:33,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:56:33,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:56:33,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 13:56:33,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 13:56:33,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 13:56:33,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 13:56:33,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 13:56:33,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 13:56:33,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 13:56:33,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 13:56:33,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 13:56:33,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 13:56:33,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 13:56:33,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 13:56:33,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 13:56:33,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 13:56:33,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:56:33,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:56:33,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:56:33,328 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 [2020-08-21 13:56:33,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:56:33,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:56:33,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:56:33,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:56:33,371 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:56:33,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:56:33,372 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:56:33,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:56:33,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:56:33,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:56:33,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:56:33,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:56:33,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:56:33,374 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:56:33,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:56:33,374 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:56:33,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:56:33,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:56:33,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:56:33,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:56:33,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:56:33,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:56:33,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:56:33,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:56:33,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:56:33,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:56:33,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:56:33,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:56:33,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:56:33,377 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 -> log-additional-information=true; [2020-08-21 13:56:33,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:56:33,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:56:33,671 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:56:33,672 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:56:33,673 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:56:33,673 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-08-21 13:56:33,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a2f4325a/e71f3d5b2c994507980082ec471719f0/FLAGfc62b049c [2020-08-21 13:56:34,250 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:56:34,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-08-21 13:56:34,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a2f4325a/e71f3d5b2c994507980082ec471719f0/FLAGfc62b049c [2020-08-21 13:56:34,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a2f4325a/e71f3d5b2c994507980082ec471719f0 [2020-08-21 13:56:34,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:56:34,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:56:34,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:56:34,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:56:34,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:56:34,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:56:34" (1/1) ... [2020-08-21 13:56:34,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d07232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:34, skipping insertion in model container [2020-08-21 13:56:34,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:56:34" (1/1) ... [2020-08-21 13:56:34,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:56:34,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:56:34,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:56:35,094 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:56:35,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:56:35,269 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:56:35,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:35 WrapperNode [2020-08-21 13:56:35,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:56:35,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:56:35,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:56:35,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:56:35,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:35" (1/1) ... [2020-08-21 13:56:35,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:35" (1/1) ... [2020-08-21 13:56:35,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:35" (1/1) ... [2020-08-21 13:56:35,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:35" (1/1) ... [2020-08-21 13:56:35,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:35" (1/1) ... [2020-08-21 13:56:35,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:35" (1/1) ... [2020-08-21 13:56:35,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:35" (1/1) ... [2020-08-21 13:56:35,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:56:35,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:56:35,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:56:35,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:56:35,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:35" (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 [2020-08-21 13:56:35,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:56:35,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:56:35,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 13:56:35,446 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 13:56:35,446 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 13:56:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 13:56:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 13:56:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 13:56:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 13:56:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 13:56:35,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 13:56:35,453 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-21 13:56:35,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 13:56:35,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 13:56:35,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 13:56:35,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 13:56:35,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 13:56:35,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 13:56:35,454 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 13:56:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 13:56:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 13:56:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 13:56:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 13:56:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-21 13:56:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 13:56:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 13:56:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 13:56:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 13:56:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:56:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 13:56:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 13:56:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 13:56:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 13:56:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 13:56:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 13:56:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:56:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:56:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 13:56:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 13:56:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 13:56:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-21 13:56:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 13:56:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 13:56:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 13:56:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 13:56:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 13:56:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 13:56:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 13:56:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 13:56:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 13:56:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 13:56:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-21 13:56:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 13:56:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 13:56:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 13:56:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 13:56:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 13:56:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 13:56:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 13:56:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 13:56:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 13:56:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 13:56:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 13:56:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 13:56:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 13:56:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 13:56:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 13:56:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 13:56:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 13:56:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 13:56:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 13:56:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 13:56:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 13:56:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 13:56:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 13:56:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 13:56:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 13:56:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 13:56:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 13:56:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 13:56:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:56:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:56:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 13:56:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:56:36,477 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:56:36,477 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 13:56:36,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:56:36 BoogieIcfgContainer [2020-08-21 13:56:36,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:56:36,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:56:36,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:56:36,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:56:36,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:56:34" (1/3) ... [2020-08-21 13:56:36,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35664e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:56:36, skipping insertion in model container [2020-08-21 13:56:36,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:56:35" (2/3) ... [2020-08-21 13:56:36,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35664e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:56:36, skipping insertion in model container [2020-08-21 13:56:36,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:56:36" (3/3) ... [2020-08-21 13:56:36,497 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-08-21 13:56:36,505 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:56:36,513 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:56:36,526 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:56:36,550 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:56:36,550 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:56:36,550 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:56:36,551 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:56:36,551 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:56:36,551 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:56:36,551 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:56:36,551 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:56:36,574 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-08-21 13:56:36,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-21 13:56:36,583 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:56:36,584 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] [2020-08-21 13:56:36,585 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:56:36,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:56:36,591 INFO L82 PathProgramCache]: Analyzing trace with hash 512275600, now seen corresponding path program 1 times [2020-08-21 13:56:36,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:56:36,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010595214] [2020-08-21 13:56:36,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:56:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:37,276 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:56:37,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:56:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:37,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:56:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:37,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:56:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:37,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:56:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:37,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:56:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:37,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 13:56:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:37,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 13:56:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:37,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 13:56:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:56:37,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010595214] [2020-08-21 13:56:37,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:56:37,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 13:56:37,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214188310] [2020-08-21 13:56:37,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 13:56:37,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:56:37,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 13:56:37,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:56:37,431 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 3 states. [2020-08-21 13:56:38,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:56:38,430 INFO L93 Difference]: Finished difference Result 231 states and 307 transitions. [2020-08-21 13:56:38,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 13:56:38,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-21 13:56:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:56:38,448 INFO L225 Difference]: With dead ends: 231 [2020-08-21 13:56:38,449 INFO L226 Difference]: Without dead ends: 126 [2020-08-21 13:56:38,453 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 [2020-08-21 13:56:38,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-08-21 13:56:38,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 96. [2020-08-21 13:56:38,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-08-21 13:56:38,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-08-21 13:56:38,536 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 52 [2020-08-21 13:56:38,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:56:38,536 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-08-21 13:56:38,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 13:56:38,537 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-08-21 13:56:38,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-21 13:56:38,540 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:56:38,540 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] [2020-08-21 13:56:38,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:56:38,541 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:56:38,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:56:38,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1858874248, now seen corresponding path program 1 times [2020-08-21 13:56:38,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:56:38,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594607175] [2020-08-21 13:56:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:56:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:38,913 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:56:38,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:56:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:38,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:56:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:38,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:56:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:38,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:56:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:38,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:56:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:38,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 13:56:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:38,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-21 13:56:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:38,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 13:56:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:56:38,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594607175] [2020-08-21 13:56:38,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:56:38,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 13:56:38,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41051394] [2020-08-21 13:56:38,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 13:56:38,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:56:38,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 13:56:38,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 13:56:38,968 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-08-21 13:56:39,428 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 13:56:39,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:56:39,981 INFO L93 Difference]: Finished difference Result 155 states and 188 transitions. [2020-08-21 13:56:39,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 13:56:39,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-21 13:56:39,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:56:39,985 INFO L225 Difference]: With dead ends: 155 [2020-08-21 13:56:39,985 INFO L226 Difference]: Without dead ends: 110 [2020-08-21 13:56:39,988 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 [2020-08-21 13:56:39,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-08-21 13:56:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 87. [2020-08-21 13:56:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-21 13:56:40,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2020-08-21 13:56:40,034 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 53 [2020-08-21 13:56:40,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:56:40,035 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2020-08-21 13:56:40,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 13:56:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2020-08-21 13:56:40,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-21 13:56:40,048 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:56:40,048 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] [2020-08-21 13:56:40,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:56:40,049 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:56:40,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:56:40,050 INFO L82 PathProgramCache]: Analyzing trace with hash 865102310, now seen corresponding path program 1 times [2020-08-21 13:56:40,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:56:40,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967675998] [2020-08-21 13:56:40,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:56:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:40,450 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:56:40,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:56:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:40,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:56:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:40,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:56:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:40,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:56:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:40,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:56:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:40,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 13:56:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:40,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 13:56:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:40,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 13:56:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:56:40,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967675998] [2020-08-21 13:56:40,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:56:40,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 13:56:40,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561697656] [2020-08-21 13:56:40,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:56:40,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:56:40,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:56:40,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:56:40,551 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 8 states. [2020-08-21 13:56:40,967 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:56:41,278 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:41,523 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:41,766 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:42,499 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 13:56:43,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:56:43,604 INFO L93 Difference]: Finished difference Result 311 states and 384 transitions. [2020-08-21 13:56:43,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 13:56:43,605 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-21 13:56:43,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:56:43,609 INFO L225 Difference]: With dead ends: 311 [2020-08-21 13:56:43,609 INFO L226 Difference]: Without dead ends: 248 [2020-08-21 13:56:43,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:56:43,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-08-21 13:56:43,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 186. [2020-08-21 13:56:43,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-08-21 13:56:43,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 221 transitions. [2020-08-21 13:56:43,661 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 221 transitions. Word has length 57 [2020-08-21 13:56:43,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:56:43,662 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 221 transitions. [2020-08-21 13:56:43,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:56:43,662 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 221 transitions. [2020-08-21 13:56:43,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-21 13:56:43,663 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:56:43,664 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] [2020-08-21 13:56:43,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:56:43,664 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:56:43,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:56:43,664 INFO L82 PathProgramCache]: Analyzing trace with hash 27342424, now seen corresponding path program 1 times [2020-08-21 13:56:43,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:56:43,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081444975] [2020-08-21 13:56:43,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:56:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:43,956 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 13:56:43,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:56:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:43,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:56:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:43,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:56:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:43,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:56:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:43,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:56:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:43,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-21 13:56:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:43,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 13:56:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:43,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 13:56:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:44,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-21 13:56:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:56:44,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:56:44,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081444975] [2020-08-21 13:56:44,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:56:44,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 13:56:44,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497482582] [2020-08-21 13:56:44,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 13:56:44,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:56:44,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 13:56:44,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-21 13:56:44,025 INFO L87 Difference]: Start difference. First operand 186 states and 221 transitions. Second operand 7 states. [2020-08-21 13:56:44,380 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:56:45,343 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:45,607 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:45,873 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 13:56:46,114 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 13:56:46,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:56:46,390 INFO L93 Difference]: Finished difference Result 524 states and 668 transitions. [2020-08-21 13:56:46,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 13:56:46,392 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-08-21 13:56:46,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:56:46,397 INFO L225 Difference]: With dead ends: 524 [2020-08-21 13:56:46,397 INFO L226 Difference]: Without dead ends: 362 [2020-08-21 13:56:46,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-08-21 13:56:46,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-08-21 13:56:46,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341. [2020-08-21 13:56:46,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-08-21 13:56:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 417 transitions. [2020-08-21 13:56:46,476 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 417 transitions. Word has length 60 [2020-08-21 13:56:46,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:56:46,477 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 417 transitions. [2020-08-21 13:56:46,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 13:56:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 417 transitions. [2020-08-21 13:56:46,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-21 13:56:46,479 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:56:46,480 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] [2020-08-21 13:56:46,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:56:46,480 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:56:46,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:56:46,481 INFO L82 PathProgramCache]: Analyzing trace with hash 2049443282, now seen corresponding path program 1 times [2020-08-21 13:56:46,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:56:46,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477954365] [2020-08-21 13:56:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:56:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 13:56:46,540 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 13:56:46,540 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 13:56:46,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 13:56:46,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:56:46 BoogieIcfgContainer [2020-08-21 13:56:46,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 13:56:46,569 INFO L168 Benchmark]: Toolchain (without parser) took 12068.89 ms. Allocated memory was 138.4 MB in the beginning and 430.4 MB in the end (delta: 292.0 MB). Free memory was 101.4 MB in the beginning and 200.5 MB in the end (delta: -99.1 MB). Peak memory consumption was 192.9 MB. Max. memory is 7.1 GB. [2020-08-21 13:56:46,570 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 13:56:46,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.76 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 101.2 MB in the beginning and 171.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-08-21 13:56:46,572 INFO L168 Benchmark]: Boogie Preprocessor took 114.41 ms. Allocated memory is still 201.3 MB. Free memory was 171.8 MB in the beginning and 167.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-08-21 13:56:46,573 INFO L168 Benchmark]: RCFGBuilder took 1101.99 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 167.6 MB in the beginning and 202.3 MB in the end (delta: -34.6 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. [2020-08-21 13:56:46,573 INFO L168 Benchmark]: TraceAbstraction took 10077.51 ms. Allocated memory was 232.8 MB in the beginning and 430.4 MB in the end (delta: 197.7 MB). Free memory was 202.3 MB in the beginning and 200.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 199.4 MB. Max. memory is 7.1 GB. [2020-08-21 13:56:46,577 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.76 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 101.2 MB in the beginning and 171.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.41 ms. Allocated memory is still 201.3 MB. Free memory was 171.8 MB in the beginning and 167.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1101.99 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 167.6 MB in the beginning and 202.3 MB in the end (delta: -34.6 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10077.51 ms. Allocated memory was 232.8 MB in the beginning and 430.4 MB in the end (delta: 197.7 MB). Free memory was 202.3 MB in the beginning and 200.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 199.4 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: 9.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.5s, 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, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.6s 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, 1.6s 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...