/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 05:01:01,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 05:01:01,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 05:01:01,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 05:01:01,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 05:01:01,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 05:01:01,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 05:01:01,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 05:01:01,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 05:01:01,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 05:01:01,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 05:01:01,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 05:01:01,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 05:01:01,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 05:01:01,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 05:01:01,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 05:01:01,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 05:01:01,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 05:01:01,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 05:01:01,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 05:01:01,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 05:01:01,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 05:01:01,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 05:01:01,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 05:01:01,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 05:01:01,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 05:01:01,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 05:01:01,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 05:01:01,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 05:01:01,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 05:01:01,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 05:01:01,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 05:01:01,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 05:01:01,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 05:01:01,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 05:01:01,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 05:01:01,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 05:01:01,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 05:01:01,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 05:01:01,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 05:01:01,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 05:01:01,401 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 [2020-08-19 05:01:01,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 05:01:01,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 05:01:01,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 05:01:01,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 05:01:01,427 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 05:01:01,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 05:01:01,428 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 05:01:01,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 05:01:01,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 05:01:01,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 05:01:01,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 05:01:01,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 05:01:01,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 05:01:01,429 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 05:01:01,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 05:01:01,429 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 05:01:01,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 05:01:01,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 05:01:01,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 05:01:01,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 05:01:01,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 05:01:01,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:01:01,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 05:01:01,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 05:01:01,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 05:01:01,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 05:01:01,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 05:01:01,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 05:01:01,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 05:01:01,432 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=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; [2020-08-19 05:01:01,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 05:01:01,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 05:01:01,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 05:01:01,811 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 05:01:01,812 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 05:01:01,813 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-08-19 05:01:01,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e977407f2/393d8a78ab0c4f53b3701b58c869ed4d/FLAGcafa6cc87 [2020-08-19 05:01:02,418 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 05:01:02,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-08-19 05:01:02,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e977407f2/393d8a78ab0c4f53b3701b58c869ed4d/FLAGcafa6cc87 [2020-08-19 05:01:02,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e977407f2/393d8a78ab0c4f53b3701b58c869ed4d [2020-08-19 05:01:02,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 05:01:02,734 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 05:01:02,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 05:01:02,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 05:01:02,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 05:01:02,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:01:02" (1/1) ... [2020-08-19 05:01:02,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:02, skipping insertion in model container [2020-08-19 05:01:02,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:01:02" (1/1) ... [2020-08-19 05:01:02,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 05:01:02,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 05:01:03,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:01:03,372 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 05:01:03,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:01:03,477 INFO L208 MainTranslator]: Completed translation [2020-08-19 05:01:03,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:03 WrapperNode [2020-08-19 05:01:03,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 05:01:03,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 05:01:03,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 05:01:03,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 05:01:03,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:03" (1/1) ... [2020-08-19 05:01:03,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:03" (1/1) ... [2020-08-19 05:01:03,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:03" (1/1) ... [2020-08-19 05:01:03,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:03" (1/1) ... [2020-08-19 05:01:03,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:03" (1/1) ... [2020-08-19 05:01:03,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:03" (1/1) ... [2020-08-19 05:01:03,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:03" (1/1) ... [2020-08-19 05:01:03,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 05:01:03,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 05:01:03,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 05:01:03,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 05:01:03,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:03" (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 [2020-08-19 05:01:03,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 05:01:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 05:01:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 05:01:03,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 05:01:03,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 05:01:03,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 05:01:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 05:01:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 05:01:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 05:01:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 05:01:03,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 05:01:03,638 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 05:01:03,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 05:01:03,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 05:01:03,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 05:01:03,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 05:01:03,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 05:01:03,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 05:01:03,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 05:01:03,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-19 05:01:03,649 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 05:01:03,649 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 05:01:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 05:01:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 05:01:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 05:01:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 05:01:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 05:01:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 05:01:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-19 05:01:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 05:01:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 05:01:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 05:01:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 05:01:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 05:01:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 05:01:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 05:01:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 05:01:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 05:01:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 05:01:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 05:01:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 05:01:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 05:01:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 05:01:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 05:01:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 05:01:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 05:01:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 05:01:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 05:01:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 05:01:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 05:01:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 05:01:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 05:01:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 05:01:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 05:01:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 05:01:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 05:01:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 05:01:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 05:01:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 05:01:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 05:01:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 05:01:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 05:01:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 05:01:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 05:01:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 05:01:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 05:01:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 05:01:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 05:01:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 05:01:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 05:01:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 05:01:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 05:01:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 05:01:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 05:01:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-19 05:01:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 05:01:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 05:01:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 05:01:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 05:01:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-19 05:01:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 05:01:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 05:01:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 05:01:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 05:01:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 05:01:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 05:01:04,756 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 05:01:04,757 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 05:01:04,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:01:04 BoogieIcfgContainer [2020-08-19 05:01:04,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 05:01:04,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 05:01:04,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 05:01:04,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 05:01:04,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 05:01:02" (1/3) ... [2020-08-19 05:01:04,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c73b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:01:04, skipping insertion in model container [2020-08-19 05:01:04,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:01:03" (2/3) ... [2020-08-19 05:01:04,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c73b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:01:04, skipping insertion in model container [2020-08-19 05:01:04,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:01:04" (3/3) ... [2020-08-19 05:01:04,771 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-08-19 05:01:04,781 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 05:01:04,790 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 05:01:04,805 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 05:01:04,831 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 05:01:04,831 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 05:01:04,831 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 05:01:04,831 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 05:01:04,831 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 05:01:04,832 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 05:01:04,832 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 05:01:04,832 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 05:01:04,855 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-08-19 05:01:04,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-19 05:01:04,866 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:01:04,867 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] [2020-08-19 05:01:04,868 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:01:04,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:01:04,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1046284201, now seen corresponding path program 1 times [2020-08-19 05:01:04,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:01:04,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206207568] [2020-08-19 05:01:04,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:01:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:05,591 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:01:05,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:01:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:05,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:01:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:05,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:01:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:05,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:01:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:05,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:01:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:05,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:01:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:05,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:01:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:05,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 05:01:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:05,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:01:05,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206207568] [2020-08-19 05:01:05,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:01:05,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 05:01:05,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676283445] [2020-08-19 05:01:05,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 05:01:05,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:01:05,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 05:01:05,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 05:01:05,721 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 3 states. [2020-08-19 05:01:06,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:01:06,865 INFO L93 Difference]: Finished difference Result 263 states and 350 transitions. [2020-08-19 05:01:06,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 05:01:06,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-19 05:01:06,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:01:06,882 INFO L225 Difference]: With dead ends: 263 [2020-08-19 05:01:06,883 INFO L226 Difference]: Without dead ends: 143 [2020-08-19 05:01:06,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 05:01:06,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-08-19 05:01:06,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 111. [2020-08-19 05:01:06,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-08-19 05:01:06,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2020-08-19 05:01:06,976 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 52 [2020-08-19 05:01:06,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:01:06,977 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2020-08-19 05:01:06,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 05:01:06,977 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2020-08-19 05:01:06,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-19 05:01:06,981 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:01:06,981 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] [2020-08-19 05:01:06,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 05:01:06,982 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:01:06,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:01:06,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1021968907, now seen corresponding path program 1 times [2020-08-19 05:01:06,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:01:06,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403322777] [2020-08-19 05:01:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:01:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:07,295 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:01:07,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:01:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:07,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:01:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:07,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:01:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:07,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:01:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:07,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:01:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:07,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 05:01:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:07,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 05:01:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:07,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 05:01:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:01:07,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403322777] [2020-08-19 05:01:07,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:01:07,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 05:01:07,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135606792] [2020-08-19 05:01:07,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 05:01:07,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:01:07,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 05:01:07,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 05:01:07,348 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand 4 states. [2020-08-19 05:01:07,842 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:01:08,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:01:08,538 INFO L93 Difference]: Finished difference Result 190 states and 233 transitions. [2020-08-19 05:01:08,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 05:01:08,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-19 05:01:08,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:01:08,541 INFO L225 Difference]: With dead ends: 190 [2020-08-19 05:01:08,541 INFO L226 Difference]: Without dead ends: 127 [2020-08-19 05:01:08,544 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 [2020-08-19 05:01:08,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-08-19 05:01:08,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 102. [2020-08-19 05:01:08,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-08-19 05:01:08,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2020-08-19 05:01:08,592 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 53 [2020-08-19 05:01:08,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:01:08,592 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2020-08-19 05:01:08,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 05:01:08,593 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2020-08-19 05:01:08,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-19 05:01:08,597 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:01:08,597 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] [2020-08-19 05:01:08,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 05:01:08,598 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:01:08,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:01:08,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1636314529, now seen corresponding path program 1 times [2020-08-19 05:01:08,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:01:08,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549050510] [2020-08-19 05:01:08,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:01:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:08,949 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:01:08,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:01:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:08,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:01:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:09,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:01:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:09,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:01:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:09,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:01:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:09,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:01:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:09,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 05:01:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:09,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 05:01:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:01:09,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549050510] [2020-08-19 05:01:09,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:01:09,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 05:01:09,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009755239] [2020-08-19 05:01:09,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 05:01:09,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:01:09,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 05:01:09,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 05:01:09,053 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand 8 states. [2020-08-19 05:01:09,422 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:01:09,744 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:01:09,978 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:01:10,213 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:01:10,990 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:01:12,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:01:12,397 INFO L93 Difference]: Finished difference Result 360 states and 450 transitions. [2020-08-19 05:01:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 05:01:12,403 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-19 05:01:12,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:01:12,411 INFO L225 Difference]: With dead ends: 360 [2020-08-19 05:01:12,411 INFO L226 Difference]: Without dead ends: 282 [2020-08-19 05:01:12,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-19 05:01:12,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-08-19 05:01:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 228. [2020-08-19 05:01:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-08-19 05:01:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2020-08-19 05:01:12,484 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 57 [2020-08-19 05:01:12,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:01:12,485 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2020-08-19 05:01:12,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 05:01:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2020-08-19 05:01:12,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-19 05:01:12,487 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:01:12,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:01:12,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 05:01:12,487 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:01:12,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:01:12,488 INFO L82 PathProgramCache]: Analyzing trace with hash -384943424, now seen corresponding path program 1 times [2020-08-19 05:01:12,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:01:12,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340160571] [2020-08-19 05:01:12,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:01:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:12,765 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 05:01:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:01:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:12,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:01:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:12,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:01:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:12,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:01:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:12,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:01:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:12,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 05:01:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:12,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 05:01:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:12,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 05:01:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:12,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 05:01:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:01:12,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:01:12,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340160571] [2020-08-19 05:01:12,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:01:12,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 05:01:12,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103135211] [2020-08-19 05:01:12,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 05:01:12,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:01:12,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 05:01:12,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 05:01:12,896 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand 8 states. [2020-08-19 05:01:13,369 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:01:14,615 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:01:14,909 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:01:15,195 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 05:01:15,446 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 05:01:16,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:01:16,060 INFO L93 Difference]: Finished difference Result 696 states and 923 transitions. [2020-08-19 05:01:16,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 05:01:16,060 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-19 05:01:16,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:01:16,066 INFO L225 Difference]: With dead ends: 696 [2020-08-19 05:01:16,067 INFO L226 Difference]: Without dead ends: 492 [2020-08-19 05:01:16,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-19 05:01:16,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-08-19 05:01:16,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 429. [2020-08-19 05:01:16,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-08-19 05:01:16,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 535 transitions. [2020-08-19 05:01:16,171 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 535 transitions. Word has length 63 [2020-08-19 05:01:16,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:01:16,172 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 535 transitions. [2020-08-19 05:01:16,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 05:01:16,172 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 535 transitions. [2020-08-19 05:01:16,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-19 05:01:16,175 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:01:16,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:01:16,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 05:01:16,176 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:01:16,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:01:16,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1334484666, now seen corresponding path program 1 times [2020-08-19 05:01:16,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:01:16,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30715514] [2020-08-19 05:01:16,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:01:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 05:01:16,239 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 05:01:16,239 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 05:01:16,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 05:01:16,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 05:01:16 BoogieIcfgContainer [2020-08-19 05:01:16,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 05:01:16,270 INFO L168 Benchmark]: Toolchain (without parser) took 13535.96 ms. Allocated memory was 138.4 MB in the beginning and 454.6 MB in the end (delta: 316.1 MB). Free memory was 100.7 MB in the beginning and 307.4 MB in the end (delta: -206.8 MB). Peak memory consumption was 109.4 MB. Max. memory is 7.1 GB. [2020-08-19 05:01:16,271 INFO L168 Benchmark]: CDTParser took 0.29 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 05:01:16,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.60 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.2 MB in the beginning and 170.7 MB in the end (delta: -70.5 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-08-19 05:01:16,273 INFO L168 Benchmark]: Boogie Preprocessor took 84.06 ms. Allocated memory is still 201.3 MB. Free memory was 170.7 MB in the beginning and 166.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-08-19 05:01:16,274 INFO L168 Benchmark]: RCFGBuilder took 1197.49 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 166.5 MB in the beginning and 198.8 MB in the end (delta: -32.3 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2020-08-19 05:01:16,274 INFO L168 Benchmark]: TraceAbstraction took 11504.47 ms. Allocated memory was 232.3 MB in the beginning and 454.6 MB in the end (delta: 222.3 MB). Free memory was 198.8 MB in the beginning and 307.4 MB in the end (delta: -108.6 MB). Peak memory consumption was 113.7 MB. Max. memory is 7.1 GB. [2020-08-19 05:01:16,278 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.60 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.2 MB in the beginning and 170.7 MB in the end (delta: -70.5 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.06 ms. Allocated memory is still 201.3 MB. Free memory was 170.7 MB in the beginning and 166.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1197.49 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 166.5 MB in the beginning and 198.8 MB in the end (delta: -32.3 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11504.47 ms. Allocated memory was 232.3 MB in the beginning and 454.6 MB in the end (delta: 222.3 MB). Free memory was 198.8 MB in the beginning and 307.4 MB in the end (delta: -108.6 MB). Peak memory consumption was 113.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L165] int retValue_acc ; [L166] int tmp ; [L170] FCALL select_helpers() [L171] FCALL select_features() [L172] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L172] RET, EXPR valid_product() [L172] tmp = valid_product() [L174] COND TRUE \read(tmp) [L176] FCALL setup() [L177] CALL runTest() [L159] CALL test() [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) [L766] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L766] RET waterRise() [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND FALSE !(\read(tmp___0)) [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND FALSE !(\read(tmp___2)) [L788] tmp___1 = __VERIFIER_nondet_int() [L790] COND TRUE \read(tmp___1) [L792] CALL stopSystem() [L732] COND FALSE !(\read(pumpRunning)) [L739] systemActive = 0 [L792] RET stopSystem() [L799] CALL timeShift() [L603] COND FALSE !(\read(pumpRunning)) [L610] COND FALSE !(\read(systemActive)) [L618] CALL __utac_acc__Specification3_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L564] CALL, EXPR isMethaneLevelCritical() [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] return (retValue_acc); [L564] RET, EXPR isMethaneLevelCritical() [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L570] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L570] RET, EXPR getWaterLevel() [L570] tmp___0 = getWaterLevel() [L572] COND TRUE tmp___0 == 2 [L574] CALL, EXPR isPumpRunning() [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] return (retValue_acc); [L574] RET, EXPR isPumpRunning() [L574] tmp___1 = isPumpRunning() [L576] COND FALSE !(\read(tmp___1)) [L580] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 213 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 416 SDtfs, 636 SDslu, 311 SDs, 0 SdLazy, 1606 SolverSat, 407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred 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, 174 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 61524 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...