./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eee003d188141d192a4a75bb282a26c7c76ed342 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:57:18,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:57:18,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:57:18,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:57:18,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:57:18,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:57:18,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:57:18,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:57:18,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:57:18,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:57:18,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:57:18,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:57:18,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:57:18,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:57:18,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:57:18,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:57:18,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:57:18,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:57:18,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:57:18,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:57:18,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:57:18,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:57:18,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:57:18,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:57:18,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:57:18,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:57:18,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:57:18,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:57:18,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:57:18,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:57:18,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:57:18,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:57:18,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:57:18,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:57:18,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:57:18,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:57:18,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:57:18,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:57:18,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:57:18,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:57:18,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:57:18,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:57:18,595 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:57:18,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:57:18,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:57:18,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:57:18,598 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:57:18,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:57:18,599 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:57:18,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:57:18,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:57:18,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:57:18,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:57:18,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:57:18,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:57:18,602 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:57:18,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:57:18,603 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:57:18,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:57:18,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:57:18,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:57:18,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:57:18,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:57:18,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:57:18,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:57:18,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:57:18,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:57:18,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:57:18,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:57:18,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:57:18,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:57:18,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eee003d188141d192a4a75bb282a26c7c76ed342 [2020-07-28 18:57:18,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:57:18,958 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:57:18,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:57:18,965 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:57:18,965 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:57:18,966 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c [2020-07-28 18:57:19,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928a91a43/74b7b9c7b13c457db0c840935fbcb580/FLAG9e2e7f67a [2020-07-28 18:57:19,594 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:57:19,595 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c [2020-07-28 18:57:19,614 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928a91a43/74b7b9c7b13c457db0c840935fbcb580/FLAG9e2e7f67a [2020-07-28 18:57:19,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928a91a43/74b7b9c7b13c457db0c840935fbcb580 [2020-07-28 18:57:19,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:57:19,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:57:19,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:57:19,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:57:19,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:57:19,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:57:19" (1/1) ... [2020-07-28 18:57:19,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a514c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:19, skipping insertion in model container [2020-07-28 18:57:19,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:57:19" (1/1) ... [2020-07-28 18:57:19,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:57:20,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:57:20,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:57:20,479 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:57:20,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:57:20,612 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:57:20,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20 WrapperNode [2020-07-28 18:57:20,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:57:20,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:57:20,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:57:20,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:57:20,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (1/1) ... [2020-07-28 18:57:20,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (1/1) ... [2020-07-28 18:57:20,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:57:20,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:57:20,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:57:20,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:57:20,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (1/1) ... [2020-07-28 18:57:20,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (1/1) ... [2020-07-28 18:57:20,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (1/1) ... [2020-07-28 18:57:20,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (1/1) ... [2020-07-28 18:57:20,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (1/1) ... [2020-07-28 18:57:20,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (1/1) ... [2020-07-28 18:57:20,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (1/1) ... [2020-07-28 18:57:20,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:57:20,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:57:20,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:57:20,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:57:20,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-28 18:57:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 18:57:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 18:57:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:57:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:57:22,254 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:57:22,255 INFO L295 CfgBuilder]: Removed 100 assume(true) statements. [2020-07-28 18:57:22,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:57:22 BoogieIcfgContainer [2020-07-28 18:57:22,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:57:22,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:57:22,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:57:22,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:57:22,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:57:19" (1/3) ... [2020-07-28 18:57:22,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4282e098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:57:22, skipping insertion in model container [2020-07-28 18:57:22,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:57:20" (2/3) ... [2020-07-28 18:57:22,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4282e098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:57:22, skipping insertion in model container [2020-07-28 18:57:22,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:57:22" (3/3) ... [2020-07-28 18:57:22,271 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product07.cil.c [2020-07-28 18:57:22,282 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:57:22,291 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 18:57:22,307 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 18:57:22,336 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:57:22,336 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:57:22,337 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:57:22,337 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:57:22,338 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:57:22,338 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:57:22,338 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:57:22,338 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:57:22,359 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-07-28 18:57:22,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 18:57:22,368 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:57:22,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:57:22,370 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:57:22,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:57:22,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1114813757, now seen corresponding path program 1 times [2020-07-28 18:57:22,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:57:22,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852118203] [2020-07-28 18:57:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:57:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:57:22,752 INFO L280 TraceCheckUtils]: 0: Hoare triple {74#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {74#true} is VALID [2020-07-28 18:57:22,753 INFO L280 TraceCheckUtils]: 1: Hoare triple {74#true} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; {74#true} is VALID [2020-07-28 18:57:22,754 INFO L280 TraceCheckUtils]: 2: Hoare triple {74#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {74#true} is VALID [2020-07-28 18:57:22,754 INFO L280 TraceCheckUtils]: 3: Hoare triple {74#true} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {74#true} is VALID [2020-07-28 18:57:22,755 INFO L280 TraceCheckUtils]: 4: Hoare triple {74#true} assume 0 != main_~tmp~3; {74#true} is VALID [2020-07-28 18:57:22,756 INFO L280 TraceCheckUtils]: 5: Hoare triple {74#true} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {74#true} is VALID [2020-07-28 18:57:22,757 INFO L280 TraceCheckUtils]: 6: Hoare triple {74#true} assume false; {75#false} is VALID [2020-07-28 18:57:22,757 INFO L280 TraceCheckUtils]: 7: Hoare triple {75#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {75#false} is VALID [2020-07-28 18:57:22,758 INFO L280 TraceCheckUtils]: 8: Hoare triple {75#false} assume !(0 != ~pumpRunning~0); {75#false} is VALID [2020-07-28 18:57:22,759 INFO L280 TraceCheckUtils]: 9: Hoare triple {75#false} assume !(0 != ~systemActive~0); {75#false} is VALID [2020-07-28 18:57:22,759 INFO L280 TraceCheckUtils]: 10: Hoare triple {75#false} havoc __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {75#false} is VALID [2020-07-28 18:57:22,759 INFO L280 TraceCheckUtils]: 11: Hoare triple {75#false} __utac_acc__Specification1_spec__1_#t~ret10 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret10 && __utac_acc__Specification1_spec__1_#t~ret10 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret10;havoc __utac_acc__Specification1_spec__1_#t~ret10; {75#false} is VALID [2020-07-28 18:57:22,760 INFO L280 TraceCheckUtils]: 12: Hoare triple {75#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {75#false} is VALID [2020-07-28 18:57:22,760 INFO L280 TraceCheckUtils]: 13: Hoare triple {75#false} __utac_acc__Specification1_spec__1_#t~ret11 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret11 && __utac_acc__Specification1_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; {75#false} is VALID [2020-07-28 18:57:22,761 INFO L280 TraceCheckUtils]: 14: Hoare triple {75#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {75#false} is VALID [2020-07-28 18:57:22,761 INFO L280 TraceCheckUtils]: 15: Hoare triple {75#false} assume !false; {75#false} is VALID [2020-07-28 18:57:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:57:22,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852118203] [2020-07-28 18:57:22,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:57:22,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:57:22,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5970847] [2020-07-28 18:57:22,776 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 18:57:22,778 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:57:22,782 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 18:57:22,827 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:57:22,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 18:57:22,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:57:22,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 18:57:22,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:57:22,840 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2020-07-28 18:57:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:23,041 INFO L93 Difference]: Finished difference Result 136 states and 203 transitions. [2020-07-28 18:57:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 18:57:23,042 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 18:57:23,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:57:23,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:57:23,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 203 transitions. [2020-07-28 18:57:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:57:23,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 203 transitions. [2020-07-28 18:57:23,063 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 203 transitions. [2020-07-28 18:57:23,326 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 203 edges. 203 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:57:23,341 INFO L225 Difference]: With dead ends: 136 [2020-07-28 18:57:23,342 INFO L226 Difference]: Without dead ends: 67 [2020-07-28 18:57:23,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:57:23,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-07-28 18:57:23,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-07-28 18:57:23,410 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:57:23,411 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand 67 states. [2020-07-28 18:57:23,411 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 67 states. [2020-07-28 18:57:23,411 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 67 states. [2020-07-28 18:57:23,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:23,418 INFO L93 Difference]: Finished difference Result 67 states and 93 transitions. [2020-07-28 18:57:23,418 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2020-07-28 18:57:23,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:23,419 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:57:23,419 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 67 states. [2020-07-28 18:57:23,420 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 67 states. [2020-07-28 18:57:23,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:23,425 INFO L93 Difference]: Finished difference Result 67 states and 93 transitions. [2020-07-28 18:57:23,425 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2020-07-28 18:57:23,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:23,427 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:57:23,427 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:57:23,427 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:57:23,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-07-28 18:57:23,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2020-07-28 18:57:23,434 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 16 [2020-07-28 18:57:23,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:57:23,434 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2020-07-28 18:57:23,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 18:57:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2020-07-28 18:57:23,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 18:57:23,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:57:23,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:57:23,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:57:23,437 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:57:23,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:57:23,437 INFO L82 PathProgramCache]: Analyzing trace with hash 2133396642, now seen corresponding path program 1 times [2020-07-28 18:57:23,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:57:23,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540978736] [2020-07-28 18:57:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:57:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:57:23,599 INFO L280 TraceCheckUtils]: 0: Hoare triple {506#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {506#true} is VALID [2020-07-28 18:57:23,600 INFO L280 TraceCheckUtils]: 1: Hoare triple {506#true} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; {506#true} is VALID [2020-07-28 18:57:23,600 INFO L280 TraceCheckUtils]: 2: Hoare triple {506#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {506#true} is VALID [2020-07-28 18:57:23,600 INFO L280 TraceCheckUtils]: 3: Hoare triple {506#true} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {506#true} is VALID [2020-07-28 18:57:23,601 INFO L280 TraceCheckUtils]: 4: Hoare triple {506#true} assume 0 != main_~tmp~3; {506#true} is VALID [2020-07-28 18:57:23,602 INFO L280 TraceCheckUtils]: 5: Hoare triple {506#true} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {508#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 18:57:23,603 INFO L280 TraceCheckUtils]: 6: Hoare triple {508#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !false; {508#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 18:57:23,604 INFO L280 TraceCheckUtils]: 7: Hoare triple {508#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !(test_~splverifierCounter~0 < 4); {507#false} is VALID [2020-07-28 18:57:23,604 INFO L280 TraceCheckUtils]: 8: Hoare triple {507#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {507#false} is VALID [2020-07-28 18:57:23,605 INFO L280 TraceCheckUtils]: 9: Hoare triple {507#false} assume !(0 != ~pumpRunning~0); {507#false} is VALID [2020-07-28 18:57:23,605 INFO L280 TraceCheckUtils]: 10: Hoare triple {507#false} assume !(0 != ~systemActive~0); {507#false} is VALID [2020-07-28 18:57:23,606 INFO L280 TraceCheckUtils]: 11: Hoare triple {507#false} havoc __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {507#false} is VALID [2020-07-28 18:57:23,606 INFO L280 TraceCheckUtils]: 12: Hoare triple {507#false} __utac_acc__Specification1_spec__1_#t~ret10 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret10 && __utac_acc__Specification1_spec__1_#t~ret10 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret10;havoc __utac_acc__Specification1_spec__1_#t~ret10; {507#false} is VALID [2020-07-28 18:57:23,606 INFO L280 TraceCheckUtils]: 13: Hoare triple {507#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {507#false} is VALID [2020-07-28 18:57:23,607 INFO L280 TraceCheckUtils]: 14: Hoare triple {507#false} __utac_acc__Specification1_spec__1_#t~ret11 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret11 && __utac_acc__Specification1_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; {507#false} is VALID [2020-07-28 18:57:23,607 INFO L280 TraceCheckUtils]: 15: Hoare triple {507#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {507#false} is VALID [2020-07-28 18:57:23,607 INFO L280 TraceCheckUtils]: 16: Hoare triple {507#false} assume !false; {507#false} is VALID [2020-07-28 18:57:23,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:57:23,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540978736] [2020-07-28 18:57:23,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:57:23,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 18:57:23,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84729893] [2020-07-28 18:57:23,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 18:57:23,617 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:57:23,617 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:57:23,649 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:57:23,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:57:23,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:57:23,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:57:23,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:57:23,650 INFO L87 Difference]: Start difference. First operand 67 states and 93 transitions. Second operand 3 states. [2020-07-28 18:57:23,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:23,854 INFO L93 Difference]: Finished difference Result 67 states and 93 transitions. [2020-07-28 18:57:23,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:57:23,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 18:57:23,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:57:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:57:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2020-07-28 18:57:23,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:57:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2020-07-28 18:57:23,860 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 93 transitions. [2020-07-28 18:57:23,977 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:57:23,978 INFO L225 Difference]: With dead ends: 67 [2020-07-28 18:57:23,979 INFO L226 Difference]: Without dead ends: 33 [2020-07-28 18:57:23,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:57:23,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-28 18:57:23,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-07-28 18:57:23,996 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:57:23,996 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 33 states. [2020-07-28 18:57:23,996 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-28 18:57:23,997 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-28 18:57:23,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:23,999 INFO L93 Difference]: Finished difference Result 33 states and 46 transitions. [2020-07-28 18:57:23,999 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-07-28 18:57:24,000 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:24,000 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:57:24,000 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-28 18:57:24,000 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-28 18:57:24,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:24,003 INFO L93 Difference]: Finished difference Result 33 states and 46 transitions. [2020-07-28 18:57:24,003 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-07-28 18:57:24,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:24,004 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:57:24,004 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:57:24,004 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:57:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-28 18:57:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-07-28 18:57:24,006 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 17 [2020-07-28 18:57:24,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:57:24,007 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-07-28 18:57:24,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:57:24,007 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-07-28 18:57:24,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 18:57:24,008 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:57:24,008 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] [2020-07-28 18:57:24,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:57:24,009 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:57:24,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:57:24,009 INFO L82 PathProgramCache]: Analyzing trace with hash 719253894, now seen corresponding path program 1 times [2020-07-28 18:57:24,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:57:24,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174724379] [2020-07-28 18:57:24,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:57:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:57:24,100 INFO L280 TraceCheckUtils]: 0: Hoare triple {721#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,101 INFO L280 TraceCheckUtils]: 1: Hoare triple {723#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,102 INFO L280 TraceCheckUtils]: 2: Hoare triple {723#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,103 INFO L280 TraceCheckUtils]: 3: Hoare triple {723#(= 1 ~systemActive~0)} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,103 INFO L280 TraceCheckUtils]: 4: Hoare triple {723#(= 1 ~systemActive~0)} assume 0 != main_~tmp~3; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,104 INFO L280 TraceCheckUtils]: 5: Hoare triple {723#(= 1 ~systemActive~0)} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,105 INFO L280 TraceCheckUtils]: 6: Hoare triple {723#(= 1 ~systemActive~0)} assume !false; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,106 INFO L280 TraceCheckUtils]: 7: Hoare triple {723#(= 1 ~systemActive~0)} assume test_~splverifierCounter~0 < 4; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,106 INFO L280 TraceCheckUtils]: 8: Hoare triple {723#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~2 := test_#t~nondet30;havoc test_#t~nondet30; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,107 INFO L280 TraceCheckUtils]: 9: Hoare triple {723#(= 1 ~systemActive~0)} assume !(0 != test_~tmp~2); {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,108 INFO L280 TraceCheckUtils]: 10: Hoare triple {723#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,109 INFO L280 TraceCheckUtils]: 11: Hoare triple {723#(= 1 ~systemActive~0)} assume !(0 != test_~tmp___0~1); {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,109 INFO L280 TraceCheckUtils]: 12: Hoare triple {723#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,110 INFO L280 TraceCheckUtils]: 13: Hoare triple {723#(= 1 ~systemActive~0)} assume 0 != test_~tmp___2~0; {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,111 INFO L280 TraceCheckUtils]: 14: Hoare triple {723#(= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {723#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:57:24,112 INFO L280 TraceCheckUtils]: 15: Hoare triple {723#(= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {722#false} is VALID [2020-07-28 18:57:24,112 INFO L280 TraceCheckUtils]: 16: Hoare triple {722#false} havoc __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {722#false} is VALID [2020-07-28 18:57:24,113 INFO L280 TraceCheckUtils]: 17: Hoare triple {722#false} __utac_acc__Specification1_spec__1_#t~ret10 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret10 && __utac_acc__Specification1_spec__1_#t~ret10 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret10;havoc __utac_acc__Specification1_spec__1_#t~ret10; {722#false} is VALID [2020-07-28 18:57:24,113 INFO L280 TraceCheckUtils]: 18: Hoare triple {722#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {722#false} is VALID [2020-07-28 18:57:24,113 INFO L280 TraceCheckUtils]: 19: Hoare triple {722#false} __utac_acc__Specification1_spec__1_#t~ret11 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret11 && __utac_acc__Specification1_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; {722#false} is VALID [2020-07-28 18:57:24,114 INFO L280 TraceCheckUtils]: 20: Hoare triple {722#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {722#false} is VALID [2020-07-28 18:57:24,114 INFO L280 TraceCheckUtils]: 21: Hoare triple {722#false} assume !false; {722#false} is VALID [2020-07-28 18:57:24,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:57:24,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174724379] [2020-07-28 18:57:24,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:57:24,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:57:24,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94158569] [2020-07-28 18:57:24,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-28 18:57:24,141 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:57:24,142 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:57:24,187 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:57:24,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:57:24,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:57:24,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:57:24,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:57:24,189 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 3 states. [2020-07-28 18:57:24,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:24,398 INFO L93 Difference]: Finished difference Result 87 states and 126 transitions. [2020-07-28 18:57:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:57:24,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-28 18:57:24,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:57:24,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:57:24,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2020-07-28 18:57:24,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:57:24,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2020-07-28 18:57:24,407 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 126 transitions. [2020-07-28 18:57:24,557 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:57:24,559 INFO L225 Difference]: With dead ends: 87 [2020-07-28 18:57:24,559 INFO L226 Difference]: Without dead ends: 60 [2020-07-28 18:57:24,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:57:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-07-28 18:57:24,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-07-28 18:57:24,597 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:57:24,597 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states. Second operand 56 states. [2020-07-28 18:57:24,597 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 56 states. [2020-07-28 18:57:24,597 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 56 states. [2020-07-28 18:57:24,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:24,601 INFO L93 Difference]: Finished difference Result 60 states and 85 transitions. [2020-07-28 18:57:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 85 transitions. [2020-07-28 18:57:24,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:24,602 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:57:24,602 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 60 states. [2020-07-28 18:57:24,602 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 60 states. [2020-07-28 18:57:24,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:24,606 INFO L93 Difference]: Finished difference Result 60 states and 85 transitions. [2020-07-28 18:57:24,606 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 85 transitions. [2020-07-28 18:57:24,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:24,607 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:57:24,607 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:57:24,607 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:57:24,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-07-28 18:57:24,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2020-07-28 18:57:24,610 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 22 [2020-07-28 18:57:24,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:57:24,611 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2020-07-28 18:57:24,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:57:24,611 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2020-07-28 18:57:24,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-28 18:57:24,612 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:57:24,613 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] [2020-07-28 18:57:24,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 18:57:24,613 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:57:24,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:57:24,614 INFO L82 PathProgramCache]: Analyzing trace with hash -842737206, now seen corresponding path program 1 times [2020-07-28 18:57:24,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:57:24,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133347264] [2020-07-28 18:57:24,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:57:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:57:24,708 INFO L280 TraceCheckUtils]: 0: Hoare triple {1049#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,709 INFO L280 TraceCheckUtils]: 1: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,710 INFO L280 TraceCheckUtils]: 2: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,710 INFO L280 TraceCheckUtils]: 3: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,711 INFO L280 TraceCheckUtils]: 4: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume 0 != main_~tmp~3; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,712 INFO L280 TraceCheckUtils]: 5: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,714 INFO L280 TraceCheckUtils]: 6: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume !false; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,715 INFO L280 TraceCheckUtils]: 7: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume test_~splverifierCounter~0 < 4; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,717 INFO L280 TraceCheckUtils]: 8: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~2 := test_#t~nondet30;havoc test_#t~nondet30; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,717 INFO L280 TraceCheckUtils]: 9: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp~2); {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,718 INFO L280 TraceCheckUtils]: 10: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,719 INFO L280 TraceCheckUtils]: 11: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp___0~1); {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,719 INFO L280 TraceCheckUtils]: 12: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,720 INFO L280 TraceCheckUtils]: 13: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp___2~0; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,721 INFO L280 TraceCheckUtils]: 14: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,722 INFO L280 TraceCheckUtils]: 15: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,722 INFO L280 TraceCheckUtils]: 16: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {1051#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:57:24,723 INFO L280 TraceCheckUtils]: 17: Hoare triple {1051#(= 0 ~methaneLevelCritical~0)} havoc __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {1052#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} is VALID [2020-07-28 18:57:24,724 INFO L280 TraceCheckUtils]: 18: Hoare triple {1052#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} __utac_acc__Specification1_spec__1_#t~ret10 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret10 && __utac_acc__Specification1_spec__1_#t~ret10 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret10;havoc __utac_acc__Specification1_spec__1_#t~ret10; {1053#(= ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~0 0)} is VALID [2020-07-28 18:57:24,725 INFO L280 TraceCheckUtils]: 19: Hoare triple {1053#(= ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~0 0)} assume 0 != __utac_acc__Specification1_spec__1_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {1050#false} is VALID [2020-07-28 18:57:24,726 INFO L280 TraceCheckUtils]: 20: Hoare triple {1050#false} __utac_acc__Specification1_spec__1_#t~ret11 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret11 && __utac_acc__Specification1_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; {1050#false} is VALID [2020-07-28 18:57:24,726 INFO L280 TraceCheckUtils]: 21: Hoare triple {1050#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {1050#false} is VALID [2020-07-28 18:57:24,726 INFO L280 TraceCheckUtils]: 22: Hoare triple {1050#false} assume !false; {1050#false} is VALID [2020-07-28 18:57:24,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:57:24,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133347264] [2020-07-28 18:57:24,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:57:24,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:57:24,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252587707] [2020-07-28 18:57:24,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-07-28 18:57:24,730 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:57:24,730 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:57:24,766 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:57:24,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:57:24,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:57:24,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:57:24,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:57:24,767 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand 5 states. [2020-07-28 18:57:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:25,552 INFO L93 Difference]: Finished difference Result 260 states and 398 transitions. [2020-07-28 18:57:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 18:57:25,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-07-28 18:57:25,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:57:25,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:57:25,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 223 transitions. [2020-07-28 18:57:25,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:57:25,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 223 transitions. [2020-07-28 18:57:25,561 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 223 transitions. [2020-07-28 18:57:25,805 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 223 edges. 223 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:57:25,814 INFO L225 Difference]: With dead ends: 260 [2020-07-28 18:57:25,815 INFO L226 Difference]: Without dead ends: 210 [2020-07-28 18:57:25,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:57:25,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-07-28 18:57:25,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 100. [2020-07-28 18:57:25,903 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:57:25,903 INFO L82 GeneralOperation]: Start isEquivalent. First operand 210 states. Second operand 100 states. [2020-07-28 18:57:25,903 INFO L74 IsIncluded]: Start isIncluded. First operand 210 states. Second operand 100 states. [2020-07-28 18:57:25,903 INFO L87 Difference]: Start difference. First operand 210 states. Second operand 100 states. [2020-07-28 18:57:25,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:25,912 INFO L93 Difference]: Finished difference Result 210 states and 318 transitions. [2020-07-28 18:57:25,912 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 318 transitions. [2020-07-28 18:57:25,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:25,914 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:57:25,914 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 210 states. [2020-07-28 18:57:25,914 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 210 states. [2020-07-28 18:57:25,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:25,923 INFO L93 Difference]: Finished difference Result 210 states and 318 transitions. [2020-07-28 18:57:25,923 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 318 transitions. [2020-07-28 18:57:25,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:25,924 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:57:25,925 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:57:25,925 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:57:25,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-28 18:57:25,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 145 transitions. [2020-07-28 18:57:25,928 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 145 transitions. Word has length 23 [2020-07-28 18:57:25,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:57:25,929 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 145 transitions. [2020-07-28 18:57:25,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:57:25,929 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 145 transitions. [2020-07-28 18:57:25,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 18:57:25,930 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:57:25,930 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] [2020-07-28 18:57:25,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 18:57:25,930 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:57:25,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:57:25,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1110121172, now seen corresponding path program 1 times [2020-07-28 18:57:25,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:57:25,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915766867] [2020-07-28 18:57:25,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:57:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:57:26,020 INFO L280 TraceCheckUtils]: 0: Hoare triple {2003#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,021 INFO L280 TraceCheckUtils]: 1: Hoare triple {2005#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,023 INFO L280 TraceCheckUtils]: 2: Hoare triple {2005#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,024 INFO L280 TraceCheckUtils]: 3: Hoare triple {2005#(= 0 ~pumpRunning~0)} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,026 INFO L280 TraceCheckUtils]: 4: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~3; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,029 INFO L280 TraceCheckUtils]: 5: Hoare triple {2005#(= 0 ~pumpRunning~0)} havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,030 INFO L280 TraceCheckUtils]: 6: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume !false; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,031 INFO L280 TraceCheckUtils]: 7: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,031 INFO L280 TraceCheckUtils]: 8: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet30 && test_#t~nondet30 <= 2147483647;test_~tmp~2 := test_#t~nondet30;havoc test_#t~nondet30; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,032 INFO L280 TraceCheckUtils]: 9: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~2); {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,033 INFO L280 TraceCheckUtils]: 10: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet31 && test_#t~nondet31 <= 2147483647;test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,033 INFO L280 TraceCheckUtils]: 11: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___0~1; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,034 INFO L280 TraceCheckUtils]: 12: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,035 INFO L280 TraceCheckUtils]: 13: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet32 && test_#t~nondet32 <= 2147483647;test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,036 INFO L280 TraceCheckUtils]: 14: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___2~0; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,036 INFO L280 TraceCheckUtils]: 15: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,037 INFO L280 TraceCheckUtils]: 16: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,038 INFO L280 TraceCheckUtils]: 17: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,038 INFO L280 TraceCheckUtils]: 18: Hoare triple {2005#(= 0 ~pumpRunning~0)} havoc __utac_acc__Specification1_spec__1_#t~ret10, __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,039 INFO L280 TraceCheckUtils]: 19: Hoare triple {2005#(= 0 ~pumpRunning~0)} __utac_acc__Specification1_spec__1_#t~ret10 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret10 && __utac_acc__Specification1_spec__1_#t~ret10 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret10;havoc __utac_acc__Specification1_spec__1_#t~ret10; {2005#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:57:26,040 INFO L280 TraceCheckUtils]: 20: Hoare triple {2005#(= 0 ~pumpRunning~0)} assume 0 != __utac_acc__Specification1_spec__1_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {2006#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} is VALID [2020-07-28 18:57:26,041 INFO L280 TraceCheckUtils]: 21: Hoare triple {2006#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} __utac_acc__Specification1_spec__1_#t~ret11 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret11 && __utac_acc__Specification1_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; {2007#(= 0 ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp___0~0)} is VALID [2020-07-28 18:57:26,042 INFO L280 TraceCheckUtils]: 22: Hoare triple {2007#(= 0 ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp___0~0)} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {2004#false} is VALID [2020-07-28 18:57:26,042 INFO L280 TraceCheckUtils]: 23: Hoare triple {2004#false} assume !false; {2004#false} is VALID [2020-07-28 18:57:26,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:57:26,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915766867] [2020-07-28 18:57:26,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:57:26,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:57:26,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355299249] [2020-07-28 18:57:26,045 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-07-28 18:57:26,045 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:57:26,045 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:57:26,079 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:57:26,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:57:26,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:57:26,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:57:26,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:57:26,080 INFO L87 Difference]: Start difference. First operand 100 states and 145 transitions. Second operand 5 states. [2020-07-28 18:57:26,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:26,878 INFO L93 Difference]: Finished difference Result 296 states and 443 transitions. [2020-07-28 18:57:26,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 18:57:26,879 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-07-28 18:57:26,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:57:26,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:57:26,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2020-07-28 18:57:26,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:57:26,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2020-07-28 18:57:26,884 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 136 transitions. [2020-07-28 18:57:27,060 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 136 edges. 136 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:57:27,061 INFO L225 Difference]: With dead ends: 296 [2020-07-28 18:57:27,061 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 18:57:27,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 18:57:27,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 18:57:27,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 18:57:27,065 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:57:27,065 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 18:57:27,065 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 18:57:27,065 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 18:57:27,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:27,066 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 18:57:27,066 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:57:27,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:27,066 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:57:27,067 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 18:57:27,067 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 18:57:27,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:57:27,067 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 18:57:27,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:57:27,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:27,068 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:57:27,068 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:57:27,068 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:57:27,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 18:57:27,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 18:57:27,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-07-28 18:57:27,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:57:27,069 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 18:57:27,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:57:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:57:27,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:57:27,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 18:57:27,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 18:57:27,392 INFO L264 CegarLoopResult]: At program point L481(lines 477 483) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~systemActive~0)) [2020-07-28 18:57:27,393 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2020-07-28 18:57:27,393 INFO L268 CegarLoopResult]: For program point L52(lines 52 56) no Hoare annotation was computed. [2020-07-28 18:57:27,393 INFO L268 CegarLoopResult]: For program point L52-3(lines 52 56) no Hoare annotation was computed. [2020-07-28 18:57:27,393 INFO L268 CegarLoopResult]: For program point L52-6(lines 52 56) no Hoare annotation was computed. [2020-07-28 18:57:27,393 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 18:57:27,393 INFO L264 CegarLoopResult]: At program point L251(lines 244 254) the Hoare annotation is: false [2020-07-28 18:57:27,393 INFO L264 CegarLoopResult]: At program point L251-1(lines 244 254) the Hoare annotation is: false [2020-07-28 18:57:27,394 INFO L264 CegarLoopResult]: At program point L251-2(lines 244 254) the Hoare annotation is: false [2020-07-28 18:57:27,394 INFO L264 CegarLoopResult]: At program point L433-2(lines 433 447) the Hoare annotation is: false [2020-07-28 18:57:27,394 INFO L268 CegarLoopResult]: For program point L136(lines 136 149) no Hoare annotation was computed. [2020-07-28 18:57:27,394 INFO L264 CegarLoopResult]: At program point L136-1(lines 1 882) the Hoare annotation is: (and (= 0 ULTIMATE.start_test_~splverifierCounter~0) (= 0 ~pumpRunning~0)) [2020-07-28 18:57:27,394 INFO L268 CegarLoopResult]: For program point L136-2(lines 136 149) no Hoare annotation was computed. [2020-07-28 18:57:27,394 INFO L264 CegarLoopResult]: At program point L136-3(lines 1 882) the Hoare annotation is: false [2020-07-28 18:57:27,394 INFO L268 CegarLoopResult]: For program point L136-4(lines 136 149) no Hoare annotation was computed. [2020-07-28 18:57:27,394 INFO L264 CegarLoopResult]: At program point L136-5(lines 1 882) the Hoare annotation is: false [2020-07-28 18:57:27,395 INFO L264 CegarLoopResult]: At program point L417(lines 412 420) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~systemActive~0)) [2020-07-28 18:57:27,395 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-28 18:57:27,395 INFO L264 CegarLoopResult]: At program point L89(lines 84 92) the Hoare annotation is: false [2020-07-28 18:57:27,395 INFO L264 CegarLoopResult]: At program point L89-1(lines 84 92) the Hoare annotation is: (and (= 0 ULTIMATE.start_test_~splverifierCounter~0) (= 0 ~pumpRunning~0)) [2020-07-28 18:57:27,395 INFO L264 CegarLoopResult]: At program point L89-2(lines 84 92) the Hoare annotation is: false [2020-07-28 18:57:27,395 INFO L264 CegarLoopResult]: At program point L89-3(lines 84 92) the Hoare annotation is: false [2020-07-28 18:57:27,395 INFO L264 CegarLoopResult]: At program point L89-4(lines 84 92) the Hoare annotation is: false [2020-07-28 18:57:27,395 INFO L264 CegarLoopResult]: At program point L89-5(lines 84 92) the Hoare annotation is: false [2020-07-28 18:57:27,396 INFO L268 CegarLoopResult]: For program point L337(lines 337 343) no Hoare annotation was computed. [2020-07-28 18:57:27,396 INFO L264 CegarLoopResult]: At program point L337-1(lines 337 343) the Hoare annotation is: (and (= 0 ULTIMATE.start_test_~splverifierCounter~0) (= 0 ~pumpRunning~0)) [2020-07-28 18:57:27,396 INFO L268 CegarLoopResult]: For program point L304(lines 304 310) no Hoare annotation was computed. [2020-07-28 18:57:27,396 INFO L264 CegarLoopResult]: At program point L304-1(lines 304 310) the Hoare annotation is: (and (= 0 ULTIMATE.start_test_~splverifierCounter~0) (= 0 ~pumpRunning~0)) [2020-07-28 18:57:27,396 INFO L268 CegarLoopResult]: For program point L437(lines 437 441) no Hoare annotation was computed. [2020-07-28 18:57:27,396 INFO L268 CegarLoopResult]: For program point L437-1(lines 175 181) no Hoare annotation was computed. [2020-07-28 18:57:27,396 INFO L268 CegarLoopResult]: For program point L140(lines 140 146) no Hoare annotation was computed. [2020-07-28 18:57:27,397 INFO L268 CegarLoopResult]: For program point L140-2(lines 140 146) no Hoare annotation was computed. [2020-07-28 18:57:27,397 INFO L268 CegarLoopResult]: For program point L140-4(lines 140 146) no Hoare annotation was computed. [2020-07-28 18:57:27,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 18:57:27,397 INFO L268 CegarLoopResult]: For program point L504(lines 504 511) no Hoare annotation was computed. [2020-07-28 18:57:27,397 INFO L271 CegarLoopResult]: At program point L504-1(lines 504 511) the Hoare annotation is: true [2020-07-28 18:57:27,397 INFO L268 CegarLoopResult]: For program point L207(lines 207 224) no Hoare annotation was computed. [2020-07-28 18:57:27,397 INFO L268 CegarLoopResult]: For program point L207-1(lines 207 224) no Hoare annotation was computed. [2020-07-28 18:57:27,397 INFO L268 CegarLoopResult]: For program point L207-2(lines 207 224) no Hoare annotation was computed. [2020-07-28 18:57:27,397 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-07-28 18:57:27,398 INFO L268 CegarLoopResult]: For program point L158-1(line 158) no Hoare annotation was computed. [2020-07-28 18:57:27,398 INFO L268 CegarLoopResult]: For program point L158-2(line 158) no Hoare annotation was computed. [2020-07-28 18:57:27,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2020-07-28 18:57:27,398 INFO L264 CegarLoopResult]: At program point L175(lines 174 193) the Hoare annotation is: (and (= 0 ULTIMATE.start_test_~splverifierCounter~0) (= 0 ~pumpRunning~0)) [2020-07-28 18:57:27,398 INFO L268 CegarLoopResult]: For program point L175-1(lines 175 181) no Hoare annotation was computed. [2020-07-28 18:57:27,398 INFO L264 CegarLoopResult]: At program point L175-2(lines 174 193) the Hoare annotation is: false [2020-07-28 18:57:27,399 INFO L268 CegarLoopResult]: For program point L76(lines 76 80) no Hoare annotation was computed. [2020-07-28 18:57:27,399 INFO L264 CegarLoopResult]: At program point L175-3(lines 174 193) the Hoare annotation is: false [2020-07-28 18:57:27,399 INFO L268 CegarLoopResult]: For program point L357(lines 357 370) no Hoare annotation was computed. [2020-07-28 18:57:27,399 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 18:57:27,399 INFO L264 CegarLoopResult]: At program point L375(lines 326 376) the Hoare annotation is: false [2020-07-28 18:57:27,399 INFO L264 CegarLoopResult]: At program point L260(lines 255 263) the Hoare annotation is: (and (= 0 ULTIMATE.start_test_~splverifierCounter~0) (= 0 |ULTIMATE.start_isPumpRunning_#res|) (= 0 ~pumpRunning~0)) [2020-07-28 18:57:27,399 INFO L264 CegarLoopResult]: At program point L260-1(lines 255 263) the Hoare annotation is: false [2020-07-28 18:57:27,399 INFO L264 CegarLoopResult]: At program point L260-2(lines 255 263) the Hoare annotation is: false [2020-07-28 18:57:27,400 INFO L264 CegarLoopResult]: At program point L409(lines 1 882) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~systemActive~0)) [2020-07-28 18:57:27,400 INFO L268 CegarLoopResult]: For program point L211(lines 211 219) no Hoare annotation was computed. [2020-07-28 18:57:27,400 INFO L268 CegarLoopResult]: For program point L211-1(lines 211 219) no Hoare annotation was computed. [2020-07-28 18:57:27,400 INFO L268 CegarLoopResult]: For program point L211-2(lines 211 219) no Hoare annotation was computed. [2020-07-28 18:57:27,400 INFO L268 CegarLoopResult]: For program point L328(lines 327 374) no Hoare annotation was computed. [2020-07-28 18:57:27,400 INFO L268 CegarLoopResult]: For program point L64(lines 64 68) no Hoare annotation was computed. [2020-07-28 18:57:27,400 INFO L268 CegarLoopResult]: For program point L329(lines 329 333) no Hoare annotation was computed. [2020-07-28 18:57:27,401 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 18:57:27,401 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2020-07-28 18:57:27,401 INFO L268 CegarLoopResult]: For program point L363(lines 363 369) no Hoare annotation was computed. [2020-07-28 18:57:27,401 INFO L264 CegarLoopResult]: At program point L363-1(lines 175 181) the Hoare annotation is: (and (= 0 ULTIMATE.start_test_~splverifierCounter~0) (= 0 ~pumpRunning~0)) [2020-07-28 18:57:27,401 INFO L268 CegarLoopResult]: For program point L347(lines 347 353) no Hoare annotation was computed. [2020-07-28 18:57:27,401 INFO L264 CegarLoopResult]: At program point L347-1(lines 347 353) the Hoare annotation is: (and (= 0 ULTIMATE.start_test_~splverifierCounter~0) (= 0 ~pumpRunning~0)) [2020-07-28 18:57:27,401 INFO L264 CegarLoopResult]: At program point L182(lines 182 188) the Hoare annotation is: (and (= 0 ULTIMATE.start_test_~splverifierCounter~0) (= 0 ~pumpRunning~0)) [2020-07-28 18:57:27,402 INFO L264 CegarLoopResult]: At program point L182-1(lines 182 188) the Hoare annotation is: false [2020-07-28 18:57:27,402 INFO L264 CegarLoopResult]: At program point L182-2(lines 182 188) the Hoare annotation is: false [2020-07-28 18:57:27,402 INFO L271 CegarLoopResult]: At program point L513(lines 494 516) the Hoare annotation is: true [2020-07-28 18:57:27,407 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:57:27,407 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 18:57:27,408 WARN L170 areAnnotationChecker]: L504 has no Hoare annotation [2020-07-28 18:57:27,408 WARN L170 areAnnotationChecker]: L504 has no Hoare annotation [2020-07-28 18:57:27,408 WARN L170 areAnnotationChecker]: L504 has no Hoare annotation [2020-07-28 18:57:27,410 WARN L170 areAnnotationChecker]: L328 has no Hoare annotation [2020-07-28 18:57:27,410 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:57:27,410 WARN L170 areAnnotationChecker]: L175-1 has no Hoare annotation [2020-07-28 18:57:27,410 WARN L170 areAnnotationChecker]: L328 has no Hoare annotation [2020-07-28 18:57:27,410 WARN L170 areAnnotationChecker]: L328 has no Hoare annotation [2020-07-28 18:57:27,410 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:57:27,410 WARN L170 areAnnotationChecker]: L175-1 has no Hoare annotation [2020-07-28 18:57:27,410 WARN L170 areAnnotationChecker]: L175-1 has no Hoare annotation [2020-07-28 18:57:27,410 WARN L170 areAnnotationChecker]: L329 has no Hoare annotation [2020-07-28 18:57:27,411 WARN L170 areAnnotationChecker]: L52-3 has no Hoare annotation [2020-07-28 18:57:27,411 WARN L170 areAnnotationChecker]: L52-3 has no Hoare annotation [2020-07-28 18:57:27,411 WARN L170 areAnnotationChecker]: L207-1 has no Hoare annotation [2020-07-28 18:57:27,411 WARN L170 areAnnotationChecker]: L337 has no Hoare annotation [2020-07-28 18:57:27,411 WARN L170 areAnnotationChecker]: L337 has no Hoare annotation [2020-07-28 18:57:27,411 WARN L170 areAnnotationChecker]: L207-1 has no Hoare annotation [2020-07-28 18:57:27,411 WARN L170 areAnnotationChecker]: L207-1 has no Hoare annotation [2020-07-28 18:57:27,411 WARN L170 areAnnotationChecker]: L64 has no Hoare annotation [2020-07-28 18:57:27,411 WARN L170 areAnnotationChecker]: L64 has no Hoare annotation [2020-07-28 18:57:27,412 WARN L170 areAnnotationChecker]: L347 has no Hoare annotation [2020-07-28 18:57:27,412 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2020-07-28 18:57:27,412 WARN L170 areAnnotationChecker]: L347 has no Hoare annotation [2020-07-28 18:57:27,412 WARN L170 areAnnotationChecker]: L347 has no Hoare annotation [2020-07-28 18:57:27,412 WARN L170 areAnnotationChecker]: L211-1 has no Hoare annotation [2020-07-28 18:57:27,412 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2020-07-28 18:57:27,412 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2020-07-28 18:57:27,412 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-28 18:57:27,412 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-28 18:57:27,413 WARN L170 areAnnotationChecker]: L357 has no Hoare annotation [2020-07-28 18:57:27,413 WARN L170 areAnnotationChecker]: L211-1 has no Hoare annotation [2020-07-28 18:57:27,413 WARN L170 areAnnotationChecker]: L211-1 has no Hoare annotation [2020-07-28 18:57:27,413 WARN L170 areAnnotationChecker]: L140-2 has no Hoare annotation [2020-07-28 18:57:27,413 WARN L170 areAnnotationChecker]: L357 has no Hoare annotation [2020-07-28 18:57:27,413 WARN L170 areAnnotationChecker]: L357 has no Hoare annotation [2020-07-28 18:57:27,413 WARN L170 areAnnotationChecker]: L140-2 has no Hoare annotation [2020-07-28 18:57:27,413 WARN L170 areAnnotationChecker]: L140-2 has no Hoare annotation [2020-07-28 18:57:27,414 WARN L170 areAnnotationChecker]: L434 has no Hoare annotation [2020-07-28 18:57:27,414 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-28 18:57:27,414 WARN L170 areAnnotationChecker]: L363 has no Hoare annotation [2020-07-28 18:57:27,415 WARN L170 areAnnotationChecker]: L363 has no Hoare annotation [2020-07-28 18:57:27,415 WARN L170 areAnnotationChecker]: L158-1 has no Hoare annotation [2020-07-28 18:57:27,415 WARN L170 areAnnotationChecker]: L158-1 has no Hoare annotation [2020-07-28 18:57:27,415 WARN L170 areAnnotationChecker]: L434 has no Hoare annotation [2020-07-28 18:57:27,415 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-28 18:57:27,415 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-28 18:57:27,415 WARN L170 areAnnotationChecker]: L207 has no Hoare annotation [2020-07-28 18:57:27,416 WARN L170 areAnnotationChecker]: L304 has no Hoare annotation [2020-07-28 18:57:27,416 WARN L170 areAnnotationChecker]: L304 has no Hoare annotation [2020-07-28 18:57:27,416 WARN L170 areAnnotationChecker]: L437 has no Hoare annotation [2020-07-28 18:57:27,416 WARN L170 areAnnotationChecker]: L437 has no Hoare annotation [2020-07-28 18:57:27,416 WARN L170 areAnnotationChecker]: L207 has no Hoare annotation [2020-07-28 18:57:27,416 WARN L170 areAnnotationChecker]: L207 has no Hoare annotation [2020-07-28 18:57:27,418 WARN L170 areAnnotationChecker]: L437-1 has no Hoare annotation [2020-07-28 18:57:27,418 WARN L170 areAnnotationChecker]: L437-1 has no Hoare annotation [2020-07-28 18:57:27,418 WARN L170 areAnnotationChecker]: L136 has no Hoare annotation [2020-07-28 18:57:27,418 WARN L170 areAnnotationChecker]: L52-6 has no Hoare annotation [2020-07-28 18:57:27,418 WARN L170 areAnnotationChecker]: L52-6 has no Hoare annotation [2020-07-28 18:57:27,418 WARN L170 areAnnotationChecker]: L207-2 has no Hoare annotation [2020-07-28 18:57:27,418 WARN L170 areAnnotationChecker]: L211 has no Hoare annotation [2020-07-28 18:57:27,418 WARN L170 areAnnotationChecker]: L136 has no Hoare annotation [2020-07-28 18:57:27,419 WARN L170 areAnnotationChecker]: L136 has no Hoare annotation [2020-07-28 18:57:27,419 WARN L170 areAnnotationChecker]: L207-2 has no Hoare annotation [2020-07-28 18:57:27,419 WARN L170 areAnnotationChecker]: L207-2 has no Hoare annotation [2020-07-28 18:57:27,419 WARN L170 areAnnotationChecker]: L211 has no Hoare annotation [2020-07-28 18:57:27,419 WARN L170 areAnnotationChecker]: L211 has no Hoare annotation [2020-07-28 18:57:27,419 WARN L170 areAnnotationChecker]: L140 has no Hoare annotation [2020-07-28 18:57:27,419 WARN L170 areAnnotationChecker]: L136-4 has no Hoare annotation [2020-07-28 18:57:27,419 WARN L170 areAnnotationChecker]: L140 has no Hoare annotation [2020-07-28 18:57:27,419 WARN L170 areAnnotationChecker]: L140 has no Hoare annotation [2020-07-28 18:57:27,420 WARN L170 areAnnotationChecker]: L211-2 has no Hoare annotation [2020-07-28 18:57:27,420 WARN L170 areAnnotationChecker]: L136-4 has no Hoare annotation [2020-07-28 18:57:27,420 WARN L170 areAnnotationChecker]: L136-4 has no Hoare annotation [2020-07-28 18:57:27,420 WARN L170 areAnnotationChecker]: L158 has no Hoare annotation [2020-07-28 18:57:27,420 WARN L170 areAnnotationChecker]: L158 has no Hoare annotation [2020-07-28 18:57:27,420 WARN L170 areAnnotationChecker]: L211-2 has no Hoare annotation [2020-07-28 18:57:27,420 WARN L170 areAnnotationChecker]: L211-2 has no Hoare annotation [2020-07-28 18:57:27,420 WARN L170 areAnnotationChecker]: L140-4 has no Hoare annotation [2020-07-28 18:57:27,421 WARN L170 areAnnotationChecker]: L140-4 has no Hoare annotation [2020-07-28 18:57:27,421 WARN L170 areAnnotationChecker]: L140-4 has no Hoare annotation [2020-07-28 18:57:27,421 WARN L170 areAnnotationChecker]: L158-2 has no Hoare annotation [2020-07-28 18:57:27,421 WARN L170 areAnnotationChecker]: L158-2 has no Hoare annotation [2020-07-28 18:57:27,421 INFO L163 areAnnotationChecker]: CFG has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:57:27,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:57:27 BoogieIcfgContainer [2020-07-28 18:57:27,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:57:27,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:57:27,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:57:27,441 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:57:27,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:57:22" (3/4) ... [2020-07-28 18:57:27,445 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 18:57:27,461 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2020-07-28 18:57:27,461 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-07-28 18:57:27,462 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-07-28 18:57:27,463 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-07-28 18:57:27,463 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 18:57:27,464 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 18:57:27,464 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 18:57:27,498 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (0 == splverifierCounter && 0 == \result) && 0 == pumpRunning [2020-07-28 18:57:27,548 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:57:27,548 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:57:27,551 INFO L168 Benchmark]: Toolchain (without parser) took 7636.69 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 308.8 MB). Free memory was 954.9 MB in the beginning and 1.3 GB in the end (delta: -298.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-07-28 18:57:27,551 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:57:27,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2020-07-28 18:57:27,552 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:57:27,552 INFO L168 Benchmark]: Boogie Preprocessor took 43.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 18:57:27,553 INFO L168 Benchmark]: RCFGBuilder took 1500.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.1 MB in the end (delta: 139.4 MB). Peak memory consumption was 139.4 MB. Max. memory is 11.5 GB. [2020-07-28 18:57:27,553 INFO L168 Benchmark]: TraceAbstraction took 5178.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 169.3 MB). Free memory was 976.1 MB in the beginning and 1.3 GB in the end (delta: -287.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:57:27,553 INFO L168 Benchmark]: Witness Printer took 107.91 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2020-07-28 18:57:27,555 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 695.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 102.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1500.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.1 MB in the end (delta: 139.4 MB). Peak memory consumption was 139.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5178.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 169.3 MB). Free memory was 976.1 MB in the beginning and 1.3 GB in the end (delta: -287.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 107.91 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 158]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 158]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 158]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 == splverifierCounter && 0 == pumpRunning - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0 == methaneLevelCritical && 0 == pumpRunning) && 1 == systemActive - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 == splverifierCounter && 0 == pumpRunning - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 == splverifierCounter && 0 == pumpRunning - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 == splverifierCounter && 0 == pumpRunning - InvariantResult [Line: 347]: Loop Invariant Derived loop invariant: 0 == splverifierCounter && 0 == pumpRunning - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 == splverifierCounter && 0 == pumpRunning - InvariantResult [Line: 412]: Loop Invariant Derived loop invariant: (0 == methaneLevelCritical && 0 == pumpRunning) && 1 == systemActive - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: (0 == methaneLevelCritical && 0 == pumpRunning) && 1 == systemActive - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 337]: Loop Invariant Derived loop invariant: 0 == splverifierCounter && 0 == pumpRunning - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 == splverifierCounter && 0 == pumpRunning - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: (0 == splverifierCounter && 0 == \result) && 0 == pumpRunning - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 308 SDtfs, 305 SDslu, 300 SDs, 0 SdLazy, 61 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred 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, 5 MinimizatonAttempts, 114 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 32 PreInvPairs, 118 NumberOfFragments, 116 HoareAnnotationTreeSize, 32 FomulaSimplifications, 2748 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 32 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 4477 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 correct! Received shutdown request...