./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product16.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_spec3_product16.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 09e3ebf9e88b37df43a29457dc1ad9a694c62daa .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 19:01:18,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 19:01:18,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 19:01:18,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 19:01:18,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 19:01:18,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 19:01:18,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 19:01:18,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 19:01:18,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 19:01:18,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 19:01:18,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 19:01:18,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 19:01:18,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 19:01:18,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 19:01:18,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 19:01:18,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 19:01:18,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 19:01:18,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 19:01:18,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 19:01:18,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 19:01:18,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 19:01:18,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 19:01:18,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 19:01:18,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 19:01:18,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 19:01:18,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 19:01:18,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 19:01:18,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 19:01:18,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 19:01:18,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 19:01:18,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 19:01:18,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 19:01:18,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 19:01:18,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 19:01:18,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 19:01:18,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 19:01:18,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 19:01:18,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 19:01:18,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 19:01:18,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 19:01:18,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 19:01:18,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 19:01:18,526 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 19:01:18,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 19:01:18,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 19:01:18,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 19:01:18,531 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 19:01:18,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 19:01:18,532 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 19:01:18,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 19:01:18,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 19:01:18,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 19:01:18,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 19:01:18,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 19:01:18,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 19:01:18,533 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 19:01:18,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 19:01:18,534 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 19:01:18,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 19:01:18,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 19:01:18,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 19:01:18,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 19:01:18,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 19:01:18,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 19:01:18,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 19:01:18,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 19:01:18,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 19:01:18,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 19:01:18,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 19:01:18,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 19:01:18,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 19:01:18,537 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 -> 09e3ebf9e88b37df43a29457dc1ad9a694c62daa [2020-07-28 19:01:18,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 19:01:18,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 19:01:18,856 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 19:01:18,858 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 19:01:18,859 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 19:01:18,860 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2020-07-28 19:01:18,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaf04d747/5dcea5bab8be4798becf9d0379759f4d/FLAG4cd261a46 [2020-07-28 19:01:19,403 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 19:01:19,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2020-07-28 19:01:19,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaf04d747/5dcea5bab8be4798becf9d0379759f4d/FLAG4cd261a46 [2020-07-28 19:01:19,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaf04d747/5dcea5bab8be4798becf9d0379759f4d [2020-07-28 19:01:19,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 19:01:19,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 19:01:19,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 19:01:19,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 19:01:19,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 19:01:19,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:01:19" (1/1) ... [2020-07-28 19:01:19,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b663141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:19, skipping insertion in model container [2020-07-28 19:01:19,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:01:19" (1/1) ... [2020-07-28 19:01:19,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 19:01:19,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 19:01:20,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:01:20,333 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 19:01:20,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:01:20,511 INFO L208 MainTranslator]: Completed translation [2020-07-28 19:01:20,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20 WrapperNode [2020-07-28 19:01:20,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 19:01:20,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 19:01:20,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 19:01:20,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 19:01:20,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (1/1) ... [2020-07-28 19:01:20,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (1/1) ... [2020-07-28 19:01:20,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 19:01:20,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 19:01:20,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 19:01:20,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 19:01:20,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (1/1) ... [2020-07-28 19:01:20,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (1/1) ... [2020-07-28 19:01:20,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (1/1) ... [2020-07-28 19:01:20,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (1/1) ... [2020-07-28 19:01:20,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (1/1) ... [2020-07-28 19:01:20,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (1/1) ... [2020-07-28 19:01:20,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (1/1) ... [2020-07-28 19:01:20,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 19:01:20,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 19:01:20,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 19:01:20,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 19:01:20,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (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 19:01:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 19:01:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 19:01:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 19:01:20,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 19:01:22,114 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 19:01:22,115 INFO L295 CfgBuilder]: Removed 108 assume(true) statements. [2020-07-28 19:01:22,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:01:22 BoogieIcfgContainer [2020-07-28 19:01:22,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 19:01:22,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 19:01:22,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 19:01:22,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 19:01:22,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 07:01:19" (1/3) ... [2020-07-28 19:01:22,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e40f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:01:22, skipping insertion in model container [2020-07-28 19:01:22,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:20" (2/3) ... [2020-07-28 19:01:22,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e40f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:01:22, skipping insertion in model container [2020-07-28 19:01:22,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:01:22" (3/3) ... [2020-07-28 19:01:22,133 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-07-28 19:01:22,146 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 19:01:22,155 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 19:01:22,171 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 19:01:22,200 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 19:01:22,201 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 19:01:22,201 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 19:01:22,201 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 19:01:22,202 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 19:01:22,202 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 19:01:22,202 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 19:01:22,203 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 19:01:22,223 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-07-28 19:01:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 19:01:22,232 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:22,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:01:22,234 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:22,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1926736589, now seen corresponding path program 1 times [2020-07-28 19:01:22,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:22,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975182386] [2020-07-28 19:01:22,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:22,675 INFO L280 TraceCheckUtils]: 0: Hoare triple {80#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {80#true} is VALID [2020-07-28 19:01:22,676 INFO L280 TraceCheckUtils]: 1: Hoare triple {80#true} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {80#true} is VALID [2020-07-28 19:01:22,676 INFO L280 TraceCheckUtils]: 2: Hoare triple {80#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {80#true} is VALID [2020-07-28 19:01:22,677 INFO L280 TraceCheckUtils]: 3: Hoare triple {80#true} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {80#true} is VALID [2020-07-28 19:01:22,677 INFO L280 TraceCheckUtils]: 4: Hoare triple {80#true} assume 0 != main_~tmp~0; {80#true} is VALID [2020-07-28 19:01:22,680 INFO L280 TraceCheckUtils]: 5: Hoare triple {80#true} havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {80#true} is VALID [2020-07-28 19:01:22,681 INFO L280 TraceCheckUtils]: 6: Hoare triple {80#true} assume false; {81#false} is VALID [2020-07-28 19:01:22,682 INFO L280 TraceCheckUtils]: 7: Hoare triple {81#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {81#false} is VALID [2020-07-28 19:01:22,682 INFO L280 TraceCheckUtils]: 8: Hoare triple {81#false} assume !(0 != ~pumpRunning~0); {81#false} is VALID [2020-07-28 19:01:22,682 INFO L280 TraceCheckUtils]: 9: Hoare triple {81#false} assume !(0 != ~systemActive~0); {81#false} is VALID [2020-07-28 19:01:22,683 INFO L280 TraceCheckUtils]: 10: Hoare triple {81#false} havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; {81#false} is VALID [2020-07-28 19:01:22,683 INFO L280 TraceCheckUtils]: 11: Hoare triple {81#false} __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret70 && __utac_acc__Specification3_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; {81#false} is VALID [2020-07-28 19:01:22,684 INFO L280 TraceCheckUtils]: 12: Hoare triple {81#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; {81#false} is VALID [2020-07-28 19:01:22,684 INFO L280 TraceCheckUtils]: 13: Hoare triple {81#false} __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret71 && __utac_acc__Specification3_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; {81#false} is VALID [2020-07-28 19:01:22,684 INFO L280 TraceCheckUtils]: 14: Hoare triple {81#false} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {81#false} is VALID [2020-07-28 19:01:22,685 INFO L280 TraceCheckUtils]: 15: Hoare triple {81#false} __utac_acc__Specification3_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret72 && __utac_acc__Specification3_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~1 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; {81#false} is VALID [2020-07-28 19:01:22,685 INFO L280 TraceCheckUtils]: 16: Hoare triple {81#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~1); {81#false} is VALID [2020-07-28 19:01:22,686 INFO L280 TraceCheckUtils]: 17: Hoare triple {81#false} assume !false; {81#false} is VALID [2020-07-28 19:01:22,690 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 19:01:22,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975182386] [2020-07-28 19:01:22,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:22,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:01:22,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911145254] [2020-07-28 19:01:22,700 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 19:01:22,702 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:22,711 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 19:01:22,757 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:22,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 19:01:22,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:22,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 19:01:22,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 19:01:22,771 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-07-28 19:01:23,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:23,010 INFO L93 Difference]: Finished difference Result 148 states and 221 transitions. [2020-07-28 19:01:23,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 19:01:23,010 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 19:01:23,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:23,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:01:23,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 221 transitions. [2020-07-28 19:01:23,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:01:23,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 221 transitions. [2020-07-28 19:01:23,027 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 221 transitions. [2020-07-28 19:01:23,349 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 221 edges. 221 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:23,371 INFO L225 Difference]: With dead ends: 148 [2020-07-28 19:01:23,372 INFO L226 Difference]: Without dead ends: 73 [2020-07-28 19:01:23,379 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 19:01:23,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-07-28 19:01:23,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-07-28 19:01:23,438 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:23,439 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand 73 states. [2020-07-28 19:01:23,440 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 73 states. [2020-07-28 19:01:23,440 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 73 states. [2020-07-28 19:01:23,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:23,450 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-07-28 19:01:23,450 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-07-28 19:01:23,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:23,452 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:23,452 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 73 states. [2020-07-28 19:01:23,452 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 73 states. [2020-07-28 19:01:23,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:23,468 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-07-28 19:01:23,469 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-07-28 19:01:23,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:23,471 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:23,471 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:23,471 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:23,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-28 19:01:23,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-07-28 19:01:23,486 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2020-07-28 19:01:23,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:23,486 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-07-28 19:01:23,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 19:01:23,488 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-07-28 19:01:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-28 19:01:23,493 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:23,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:01:23,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 19:01:23,494 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:23,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:23,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1015705836, now seen corresponding path program 1 times [2020-07-28 19:01:23,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:23,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550889019] [2020-07-28 19:01:23,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:23,629 INFO L280 TraceCheckUtils]: 0: Hoare triple {551#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {551#true} is VALID [2020-07-28 19:01:23,630 INFO L280 TraceCheckUtils]: 1: Hoare triple {551#true} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {551#true} is VALID [2020-07-28 19:01:23,630 INFO L280 TraceCheckUtils]: 2: Hoare triple {551#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {551#true} is VALID [2020-07-28 19:01:23,631 INFO L280 TraceCheckUtils]: 3: Hoare triple {551#true} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {551#true} is VALID [2020-07-28 19:01:23,631 INFO L280 TraceCheckUtils]: 4: Hoare triple {551#true} assume 0 != main_~tmp~0; {551#true} is VALID [2020-07-28 19:01:23,632 INFO L280 TraceCheckUtils]: 5: Hoare triple {551#true} havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {553#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:01:23,633 INFO L280 TraceCheckUtils]: 6: Hoare triple {553#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !false; {553#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:01:23,635 INFO L280 TraceCheckUtils]: 7: Hoare triple {553#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !(test_~splverifierCounter~0 < 4); {552#false} is VALID [2020-07-28 19:01:23,635 INFO L280 TraceCheckUtils]: 8: Hoare triple {552#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {552#false} is VALID [2020-07-28 19:01:23,635 INFO L280 TraceCheckUtils]: 9: Hoare triple {552#false} assume !(0 != ~pumpRunning~0); {552#false} is VALID [2020-07-28 19:01:23,636 INFO L280 TraceCheckUtils]: 10: Hoare triple {552#false} assume !(0 != ~systemActive~0); {552#false} is VALID [2020-07-28 19:01:23,636 INFO L280 TraceCheckUtils]: 11: Hoare triple {552#false} havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; {552#false} is VALID [2020-07-28 19:01:23,637 INFO L280 TraceCheckUtils]: 12: Hoare triple {552#false} __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret70 && __utac_acc__Specification3_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; {552#false} is VALID [2020-07-28 19:01:23,637 INFO L280 TraceCheckUtils]: 13: Hoare triple {552#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; {552#false} is VALID [2020-07-28 19:01:23,637 INFO L280 TraceCheckUtils]: 14: Hoare triple {552#false} __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret71 && __utac_acc__Specification3_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; {552#false} is VALID [2020-07-28 19:01:23,638 INFO L280 TraceCheckUtils]: 15: Hoare triple {552#false} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {552#false} is VALID [2020-07-28 19:01:23,638 INFO L280 TraceCheckUtils]: 16: Hoare triple {552#false} __utac_acc__Specification3_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret72 && __utac_acc__Specification3_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~1 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; {552#false} is VALID [2020-07-28 19:01:23,639 INFO L280 TraceCheckUtils]: 17: Hoare triple {552#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~1); {552#false} is VALID [2020-07-28 19:01:23,639 INFO L280 TraceCheckUtils]: 18: Hoare triple {552#false} assume !false; {552#false} is VALID [2020-07-28 19:01:23,641 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 19:01:23,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550889019] [2020-07-28 19:01:23,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:23,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:01:23,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914325198] [2020-07-28 19:01:23,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-28 19:01:23,645 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:23,645 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:01:23,677 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:23,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:01:23,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:23,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:01:23,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:01:23,679 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 3 states. [2020-07-28 19:01:23,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:23,918 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-07-28 19:01:23,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:01:23,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-28 19:01:23,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:23,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:01:23,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2020-07-28 19:01:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:01:23,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2020-07-28 19:01:23,924 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 102 transitions. [2020-07-28 19:01:24,056 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:24,058 INFO L225 Difference]: With dead ends: 73 [2020-07-28 19:01:24,058 INFO L226 Difference]: Without dead ends: 35 [2020-07-28 19:01:24,059 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 19:01:24,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-28 19:01:24,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-28 19:01:24,076 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:24,076 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 35 states. [2020-07-28 19:01:24,098 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-28 19:01:24,098 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-28 19:01:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:24,100 INFO L93 Difference]: Finished difference Result 35 states and 49 transitions. [2020-07-28 19:01:24,100 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-07-28 19:01:24,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:24,101 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:24,101 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-28 19:01:24,101 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-28 19:01:24,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:24,103 INFO L93 Difference]: Finished difference Result 35 states and 49 transitions. [2020-07-28 19:01:24,103 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-07-28 19:01:24,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:24,104 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:24,104 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:24,105 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:24,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-28 19:01:24,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-07-28 19:01:24,107 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-07-28 19:01:24,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:24,107 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-07-28 19:01:24,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:01:24,108 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-07-28 19:01:24,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 19:01:24,108 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:24,109 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 19:01:24,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 19:01:24,109 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:24,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:24,111 INFO L82 PathProgramCache]: Analyzing trace with hash 428358184, now seen corresponding path program 1 times [2020-07-28 19:01:24,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:24,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021578590] [2020-07-28 19:01:24,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:24,210 INFO L280 TraceCheckUtils]: 0: Hoare triple {782#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {782#true} is VALID [2020-07-28 19:01:24,211 INFO L280 TraceCheckUtils]: 1: Hoare triple {782#true} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {782#true} is VALID [2020-07-28 19:01:24,212 INFO L280 TraceCheckUtils]: 2: Hoare triple {782#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {784#(= 1 |ULTIMATE.start_valid_product_#res|)} is VALID [2020-07-28 19:01:24,213 INFO L280 TraceCheckUtils]: 3: Hoare triple {784#(= 1 |ULTIMATE.start_valid_product_#res|)} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {785#(= 1 ULTIMATE.start_main_~tmp~0)} is VALID [2020-07-28 19:01:24,213 INFO L280 TraceCheckUtils]: 4: Hoare triple {785#(= 1 ULTIMATE.start_main_~tmp~0)} assume 0 != main_~tmp~0; {782#true} is VALID [2020-07-28 19:01:24,213 INFO L280 TraceCheckUtils]: 5: Hoare triple {782#true} havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {782#true} is VALID [2020-07-28 19:01:24,214 INFO L280 TraceCheckUtils]: 6: Hoare triple {782#true} assume !false; {782#true} is VALID [2020-07-28 19:01:24,214 INFO L280 TraceCheckUtils]: 7: Hoare triple {782#true} assume test_~splverifierCounter~0 < 4; {782#true} is VALID [2020-07-28 19:01:24,215 INFO L280 TraceCheckUtils]: 8: Hoare triple {782#true} assume -2147483648 <= test_#t~nondet36 && test_#t~nondet36 <= 2147483647;test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; {782#true} is VALID [2020-07-28 19:01:24,215 INFO L280 TraceCheckUtils]: 9: Hoare triple {782#true} assume !(0 != test_~tmp~4); {782#true} is VALID [2020-07-28 19:01:24,215 INFO L280 TraceCheckUtils]: 10: Hoare triple {782#true} assume -2147483648 <= test_#t~nondet37 && test_#t~nondet37 <= 2147483647;test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; {782#true} is VALID [2020-07-28 19:01:24,215 INFO L280 TraceCheckUtils]: 11: Hoare triple {782#true} assume !(0 != test_~tmp___0~0); {782#true} is VALID [2020-07-28 19:01:24,216 INFO L280 TraceCheckUtils]: 12: Hoare triple {782#true} assume -2147483648 <= test_#t~nondet38 && test_#t~nondet38 <= 2147483647;test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; {782#true} is VALID [2020-07-28 19:01:24,217 INFO L280 TraceCheckUtils]: 13: Hoare triple {782#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {786#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 19:01:24,218 INFO L280 TraceCheckUtils]: 14: Hoare triple {786#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {786#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 19:01:24,223 INFO L280 TraceCheckUtils]: 15: Hoare triple {786#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {783#false} is VALID [2020-07-28 19:01:24,223 INFO L280 TraceCheckUtils]: 16: Hoare triple {783#false} havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; {783#false} is VALID [2020-07-28 19:01:24,223 INFO L280 TraceCheckUtils]: 17: Hoare triple {783#false} __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret70 && __utac_acc__Specification3_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; {783#false} is VALID [2020-07-28 19:01:24,224 INFO L280 TraceCheckUtils]: 18: Hoare triple {783#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; {783#false} is VALID [2020-07-28 19:01:24,225 INFO L280 TraceCheckUtils]: 19: Hoare triple {783#false} __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret71 && __utac_acc__Specification3_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; {783#false} is VALID [2020-07-28 19:01:24,225 INFO L280 TraceCheckUtils]: 20: Hoare triple {783#false} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {783#false} is VALID [2020-07-28 19:01:24,226 INFO L280 TraceCheckUtils]: 21: Hoare triple {783#false} __utac_acc__Specification3_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret72 && __utac_acc__Specification3_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~1 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; {783#false} is VALID [2020-07-28 19:01:24,226 INFO L280 TraceCheckUtils]: 22: Hoare triple {783#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~1); {783#false} is VALID [2020-07-28 19:01:24,226 INFO L280 TraceCheckUtils]: 23: Hoare triple {783#false} assume !false; {783#false} is VALID [2020-07-28 19:01:24,230 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 19:01:24,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021578590] [2020-07-28 19:01:24,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:24,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:01:24,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707651213] [2020-07-28 19:01:24,231 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-07-28 19:01:24,232 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:24,232 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:01:24,277 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 19:01:24,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:01:24,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:24,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:01:24,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:01:24,279 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 5 states. [2020-07-28 19:01:24,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:24,765 INFO L93 Difference]: Finished difference Result 89 states and 129 transitions. [2020-07-28 19:01:24,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 19:01:24,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-07-28 19:01:24,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:01:24,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 129 transitions. [2020-07-28 19:01:24,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:01:24,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 129 transitions. [2020-07-28 19:01:24,771 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 129 transitions. [2020-07-28 19:01:24,926 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 129 edges. 129 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:24,928 INFO L225 Difference]: With dead ends: 89 [2020-07-28 19:01:24,928 INFO L226 Difference]: Without dead ends: 60 [2020-07-28 19:01:24,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 19:01:24,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-07-28 19:01:24,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-07-28 19:01:24,982 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:24,982 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states. Second operand 56 states. [2020-07-28 19:01:24,982 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 56 states. [2020-07-28 19:01:24,982 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 56 states. [2020-07-28 19:01:24,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:24,989 INFO L93 Difference]: Finished difference Result 60 states and 85 transitions. [2020-07-28 19:01:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 85 transitions. [2020-07-28 19:01:24,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:24,990 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:24,990 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 60 states. [2020-07-28 19:01:24,991 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 60 states. [2020-07-28 19:01:24,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:24,996 INFO L93 Difference]: Finished difference Result 60 states and 85 transitions. [2020-07-28 19:01:24,997 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 85 transitions. [2020-07-28 19:01:24,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:24,999 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:24,999 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:24,999 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:25,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-07-28 19:01:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2020-07-28 19:01:25,002 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 24 [2020-07-28 19:01:25,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:25,002 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2020-07-28 19:01:25,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:01:25,003 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2020-07-28 19:01:25,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 19:01:25,005 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:25,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:01:25,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 19:01:25,008 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:25,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:25,010 INFO L82 PathProgramCache]: Analyzing trace with hash 796513325, now seen corresponding path program 1 times [2020-07-28 19:01:25,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:25,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211916557] [2020-07-28 19:01:25,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:25,172 INFO L280 TraceCheckUtils]: 0: Hoare triple {1123#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,173 INFO L280 TraceCheckUtils]: 1: Hoare triple {1125#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,173 INFO L280 TraceCheckUtils]: 2: Hoare triple {1125#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,174 INFO L280 TraceCheckUtils]: 3: Hoare triple {1125#(= 1 ~waterLevel~0)} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,175 INFO L280 TraceCheckUtils]: 4: Hoare triple {1125#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~0; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,175 INFO L280 TraceCheckUtils]: 5: Hoare triple {1125#(= 1 ~waterLevel~0)} havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,176 INFO L280 TraceCheckUtils]: 6: Hoare triple {1125#(= 1 ~waterLevel~0)} assume !false; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,176 INFO L280 TraceCheckUtils]: 7: Hoare triple {1125#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,177 INFO L280 TraceCheckUtils]: 8: Hoare triple {1125#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet36 && test_#t~nondet36 <= 2147483647;test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,177 INFO L280 TraceCheckUtils]: 9: Hoare triple {1125#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp~4); {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,178 INFO L280 TraceCheckUtils]: 10: Hoare triple {1125#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet37 && test_#t~nondet37 <= 2147483647;test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,178 INFO L280 TraceCheckUtils]: 11: Hoare triple {1125#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,179 INFO L280 TraceCheckUtils]: 12: Hoare triple {1125#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet38 && test_#t~nondet38 <= 2147483647;test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,180 INFO L280 TraceCheckUtils]: 13: Hoare triple {1125#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,180 INFO L280 TraceCheckUtils]: 14: Hoare triple {1125#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,181 INFO L280 TraceCheckUtils]: 15: Hoare triple {1125#(= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,181 INFO L280 TraceCheckUtils]: 16: Hoare triple {1125#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,182 INFO L280 TraceCheckUtils]: 17: Hoare triple {1125#(= 1 ~waterLevel~0)} havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,183 INFO L280 TraceCheckUtils]: 18: Hoare triple {1125#(= 1 ~waterLevel~0)} __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret70 && __utac_acc__Specification3_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; {1125#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:01:25,183 INFO L280 TraceCheckUtils]: 19: Hoare triple {1125#(= 1 ~waterLevel~0)} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; {1126#(= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:01:25,184 INFO L280 TraceCheckUtils]: 20: Hoare triple {1126#(= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret71 && __utac_acc__Specification3_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; {1127#(= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~1 1)} is VALID [2020-07-28 19:01:25,185 INFO L280 TraceCheckUtils]: 21: Hoare triple {1127#(= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~1 1)} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {1124#false} is VALID [2020-07-28 19:01:25,185 INFO L280 TraceCheckUtils]: 22: Hoare triple {1124#false} __utac_acc__Specification3_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret72 && __utac_acc__Specification3_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~1 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; {1124#false} is VALID [2020-07-28 19:01:25,186 INFO L280 TraceCheckUtils]: 23: Hoare triple {1124#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~1); {1124#false} is VALID [2020-07-28 19:01:25,186 INFO L280 TraceCheckUtils]: 24: Hoare triple {1124#false} assume !false; {1124#false} is VALID [2020-07-28 19:01:25,187 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 19:01:25,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211916557] [2020-07-28 19:01:25,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:25,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 19:01:25,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251130945] [2020-07-28 19:01:25,190 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 19:01:25,190 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:25,190 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:01:25,223 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:25,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:01:25,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:25,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:01:25,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:01:25,225 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand 5 states. [2020-07-28 19:01:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:26,077 INFO L93 Difference]: Finished difference Result 292 states and 446 transitions. [2020-07-28 19:01:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 19:01:26,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 19:01:26,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:26,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:01:26,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 262 transitions. [2020-07-28 19:01:26,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:01:26,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 262 transitions. [2020-07-28 19:01:26,087 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 262 transitions. [2020-07-28 19:01:26,422 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 262 edges. 262 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:26,441 INFO L225 Difference]: With dead ends: 292 [2020-07-28 19:01:26,441 INFO L226 Difference]: Without dead ends: 242 [2020-07-28 19:01:26,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 19:01:26,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-07-28 19:01:26,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 100. [2020-07-28 19:01:26,599 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:26,599 INFO L82 GeneralOperation]: Start isEquivalent. First operand 242 states. Second operand 100 states. [2020-07-28 19:01:26,599 INFO L74 IsIncluded]: Start isIncluded. First operand 242 states. Second operand 100 states. [2020-07-28 19:01:26,600 INFO L87 Difference]: Start difference. First operand 242 states. Second operand 100 states. [2020-07-28 19:01:26,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:26,612 INFO L93 Difference]: Finished difference Result 242 states and 357 transitions. [2020-07-28 19:01:26,612 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 357 transitions. [2020-07-28 19:01:26,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:26,613 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:26,614 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 242 states. [2020-07-28 19:01:26,614 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 242 states. [2020-07-28 19:01:26,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:26,626 INFO L93 Difference]: Finished difference Result 242 states and 357 transitions. [2020-07-28 19:01:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 357 transitions. [2020-07-28 19:01:26,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:26,627 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:26,627 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:26,627 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:26,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-28 19:01:26,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2020-07-28 19:01:26,632 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 25 [2020-07-28 19:01:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:26,632 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2020-07-28 19:01:26,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:01:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2020-07-28 19:01:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-28 19:01:26,633 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:26,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:01:26,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 19:01:26,634 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:26,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:26,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1162795665, now seen corresponding path program 1 times [2020-07-28 19:01:26,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:26,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824543683] [2020-07-28 19:01:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:01:26,692 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:01:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:01:26,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:01:26,788 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 19:01:26,788 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 19:01:26,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 19:01:26,938 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 19:01:26,938 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 19:01:26,938 WARN L170 areAnnotationChecker]: L792 has no Hoare annotation [2020-07-28 19:01:26,938 WARN L170 areAnnotationChecker]: L800 has no Hoare annotation [2020-07-28 19:01:26,939 WARN L170 areAnnotationChecker]: L139 has no Hoare annotation [2020-07-28 19:01:26,939 WARN L170 areAnnotationChecker]: L139 has no Hoare annotation [2020-07-28 19:01:26,939 WARN L170 areAnnotationChecker]: L112 has no Hoare annotation [2020-07-28 19:01:26,939 WARN L170 areAnnotationChecker]: L139-1 has no Hoare annotation [2020-07-28 19:01:26,939 WARN L170 areAnnotationChecker]: L901-1 has no Hoare annotation [2020-07-28 19:01:26,939 WARN L170 areAnnotationChecker]: L901-1 has no Hoare annotation [2020-07-28 19:01:26,939 WARN L170 areAnnotationChecker]: L901-1 has no Hoare annotation [2020-07-28 19:01:26,940 WARN L170 areAnnotationChecker]: L148 has no Hoare annotation [2020-07-28 19:01:26,940 WARN L170 areAnnotationChecker]: L581 has no Hoare annotation [2020-07-28 19:01:26,940 WARN L170 areAnnotationChecker]: L532 has no Hoare annotation [2020-07-28 19:01:26,940 WARN L170 areAnnotationChecker]: L532 has no Hoare annotation [2020-07-28 19:01:26,940 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 19:01:26,940 WARN L170 areAnnotationChecker]: L604-1 has no Hoare annotation [2020-07-28 19:01:26,941 WARN L170 areAnnotationChecker]: L604-1 has no Hoare annotation [2020-07-28 19:01:26,941 WARN L170 areAnnotationChecker]: L533 has no Hoare annotation [2020-07-28 19:01:26,941 WARN L170 areAnnotationChecker]: L812-3 has no Hoare annotation [2020-07-28 19:01:26,941 WARN L170 areAnnotationChecker]: L812-3 has no Hoare annotation [2020-07-28 19:01:26,941 WARN L170 areAnnotationChecker]: L604-2 has no Hoare annotation [2020-07-28 19:01:26,941 WARN L170 areAnnotationChecker]: L604-2 has no Hoare annotation [2020-07-28 19:01:26,941 WARN L170 areAnnotationChecker]: L541 has no Hoare annotation [2020-07-28 19:01:26,941 WARN L170 areAnnotationChecker]: L541 has no Hoare annotation [2020-07-28 19:01:26,942 WARN L170 areAnnotationChecker]: L636-1 has no Hoare annotation [2020-07-28 19:01:26,942 WARN L170 areAnnotationChecker]: L636-1 has no Hoare annotation [2020-07-28 19:01:26,942 WARN L170 areAnnotationChecker]: L611-1 has no Hoare annotation [2020-07-28 19:01:26,942 WARN L170 areAnnotationChecker]: L824 has no Hoare annotation [2020-07-28 19:01:26,945 WARN L170 areAnnotationChecker]: L824 has no Hoare annotation [2020-07-28 19:01:26,946 WARN L170 areAnnotationChecker]: L541-1 has no Hoare annotation [2020-07-28 19:01:26,946 WARN L170 areAnnotationChecker]: L849-2 has no Hoare annotation [2020-07-28 19:01:26,947 WARN L170 areAnnotationChecker]: L849-3 has no Hoare annotation [2020-07-28 19:01:26,947 WARN L170 areAnnotationChecker]: L551 has no Hoare annotation [2020-07-28 19:01:26,947 WARN L170 areAnnotationChecker]: L551 has no Hoare annotation [2020-07-28 19:01:26,947 WARN L170 areAnnotationChecker]: L697-1 has no Hoare annotation [2020-07-28 19:01:26,947 WARN L170 areAnnotationChecker]: L895-2 has no Hoare annotation [2020-07-28 19:01:26,947 WARN L170 areAnnotationChecker]: L895-2 has no Hoare annotation [2020-07-28 19:01:26,947 WARN L170 areAnnotationChecker]: L836 has no Hoare annotation [2020-07-28 19:01:26,948 WARN L170 areAnnotationChecker]: L836 has no Hoare annotation [2020-07-28 19:01:26,948 WARN L170 areAnnotationChecker]: L551-1 has no Hoare annotation [2020-07-28 19:01:26,948 WARN L170 areAnnotationChecker]: L640-1 has no Hoare annotation [2020-07-28 19:01:26,948 WARN L170 areAnnotationChecker]: L640-1 has no Hoare annotation [2020-07-28 19:01:26,948 WARN L170 areAnnotationChecker]: L901-3 has no Hoare annotation [2020-07-28 19:01:26,948 WARN L170 areAnnotationChecker]: L881-1 has no Hoare annotation [2020-07-28 19:01:26,948 WARN L170 areAnnotationChecker]: L561 has no Hoare annotation [2020-07-28 19:01:26,948 WARN L170 areAnnotationChecker]: L561 has no Hoare annotation [2020-07-28 19:01:26,949 WARN L170 areAnnotationChecker]: L61-2 has no Hoare annotation [2020-07-28 19:01:26,949 WARN L170 areAnnotationChecker]: L61-2 has no Hoare annotation [2020-07-28 19:01:26,949 WARN L170 areAnnotationChecker]: L61-2 has no Hoare annotation [2020-07-28 19:01:26,949 WARN L170 areAnnotationChecker]: L901-2 has no Hoare annotation [2020-07-28 19:01:26,949 WARN L170 areAnnotationChecker]: L901-2 has no Hoare annotation [2020-07-28 19:01:26,949 WARN L170 areAnnotationChecker]: L569-1 has no Hoare annotation [2020-07-28 19:01:26,949 WARN L170 areAnnotationChecker]: L569-1 has no Hoare annotation [2020-07-28 19:01:26,949 WARN L170 areAnnotationChecker]: L569 has no Hoare annotation [2020-07-28 19:01:26,950 WARN L170 areAnnotationChecker]: L569 has no Hoare annotation [2020-07-28 19:01:26,950 WARN L170 areAnnotationChecker]: L62 has no Hoare annotation [2020-07-28 19:01:26,950 WARN L170 areAnnotationChecker]: L706-1 has no Hoare annotation [2020-07-28 19:01:26,950 WARN L170 areAnnotationChecker]: L812 has no Hoare annotation [2020-07-28 19:01:26,950 WARN L170 areAnnotationChecker]: L812 has no Hoare annotation [2020-07-28 19:01:26,950 WARN L170 areAnnotationChecker]: L604 has no Hoare annotation [2020-07-28 19:01:26,950 WARN L170 areAnnotationChecker]: L604 has no Hoare annotation [2020-07-28 19:01:26,950 WARN L170 areAnnotationChecker]: L750 has no Hoare annotation [2020-07-28 19:01:26,950 WARN L170 areAnnotationChecker]: L750 has no Hoare annotation [2020-07-28 19:01:26,951 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 19:01:26,951 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 19:01:26,951 WARN L170 areAnnotationChecker]: L905-2 has no Hoare annotation [2020-07-28 19:01:26,951 WARN L170 areAnnotationChecker]: L905-2 has no Hoare annotation [2020-07-28 19:01:26,951 WARN L170 areAnnotationChecker]: L636 has no Hoare annotation [2020-07-28 19:01:26,951 WARN L170 areAnnotationChecker]: L636 has no Hoare annotation [2020-07-28 19:01:26,951 WARN L170 areAnnotationChecker]: L611 has no Hoare annotation [2020-07-28 19:01:26,951 WARN L170 areAnnotationChecker]: L750-1 has no Hoare annotation [2020-07-28 19:01:26,951 WARN L170 areAnnotationChecker]: L65-1 has no Hoare annotation [2020-07-28 19:01:26,952 WARN L170 areAnnotationChecker]: L65-1 has no Hoare annotation [2020-07-28 19:01:26,952 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2020-07-28 19:01:26,952 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2020-07-28 19:01:26,952 WARN L170 areAnnotationChecker]: L849 has no Hoare annotation [2020-07-28 19:01:26,952 WARN L170 areAnnotationChecker]: L849-1 has no Hoare annotation [2020-07-28 19:01:26,952 WARN L170 areAnnotationChecker]: L812-6 has no Hoare annotation [2020-07-28 19:01:26,952 WARN L170 areAnnotationChecker]: L812-6 has no Hoare annotation [2020-07-28 19:01:26,952 WARN L170 areAnnotationChecker]: L604-3 has no Hoare annotation [2020-07-28 19:01:26,952 WARN L170 areAnnotationChecker]: L604-3 has no Hoare annotation [2020-07-28 19:01:26,953 WARN L170 areAnnotationChecker]: L697 has no Hoare annotation [2020-07-28 19:01:26,953 WARN L170 areAnnotationChecker]: L895 has no Hoare annotation [2020-07-28 19:01:26,953 WARN L170 areAnnotationChecker]: L895 has no Hoare annotation [2020-07-28 19:01:26,953 WARN L170 areAnnotationChecker]: L636-2 has no Hoare annotation [2020-07-28 19:01:26,953 WARN L170 areAnnotationChecker]: L636-2 has no Hoare annotation [2020-07-28 19:01:26,953 WARN L170 areAnnotationChecker]: L611-2 has no Hoare annotation [2020-07-28 19:01:26,953 WARN L170 areAnnotationChecker]: L640 has no Hoare annotation [2020-07-28 19:01:26,953 WARN L170 areAnnotationChecker]: L640 has no Hoare annotation [2020-07-28 19:01:26,953 WARN L170 areAnnotationChecker]: L881 has no Hoare annotation [2020-07-28 19:01:26,954 WARN L170 areAnnotationChecker]: L849-4 has no Hoare annotation [2020-07-28 19:01:26,954 WARN L170 areAnnotationChecker]: L849-5 has no Hoare annotation [2020-07-28 19:01:26,954 WARN L170 areAnnotationChecker]: L901 has no Hoare annotation [2020-07-28 19:01:26,954 WARN L170 areAnnotationChecker]: L901 has no Hoare annotation [2020-07-28 19:01:26,954 WARN L170 areAnnotationChecker]: L697-2 has no Hoare annotation [2020-07-28 19:01:26,954 WARN L170 areAnnotationChecker]: L895-4 has no Hoare annotation [2020-07-28 19:01:26,954 WARN L170 areAnnotationChecker]: L895-4 has no Hoare annotation [2020-07-28 19:01:26,954 WARN L170 areAnnotationChecker]: L706 has no Hoare annotation [2020-07-28 19:01:26,954 WARN L170 areAnnotationChecker]: L640-2 has no Hoare annotation [2020-07-28 19:01:26,955 WARN L170 areAnnotationChecker]: L640-2 has no Hoare annotation [2020-07-28 19:01:26,955 WARN L170 areAnnotationChecker]: L901-5 has no Hoare annotation [2020-07-28 19:01:26,955 WARN L170 areAnnotationChecker]: L881-2 has no Hoare annotation [2020-07-28 19:01:26,955 WARN L170 areAnnotationChecker]: L905 has no Hoare annotation [2020-07-28 19:01:26,955 WARN L170 areAnnotationChecker]: L905 has no Hoare annotation [2020-07-28 19:01:26,955 WARN L170 areAnnotationChecker]: L901-4 has no Hoare annotation [2020-07-28 19:01:26,955 WARN L170 areAnnotationChecker]: L901-4 has no Hoare annotation [2020-07-28 19:01:26,955 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-28 19:01:26,955 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-28 19:01:26,956 WARN L170 areAnnotationChecker]: L706-2 has no Hoare annotation [2020-07-28 19:01:26,956 WARN L170 areAnnotationChecker]: L905-4 has no Hoare annotation [2020-07-28 19:01:26,956 WARN L170 areAnnotationChecker]: L905-4 has no Hoare annotation [2020-07-28 19:01:26,956 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2020-07-28 19:01:26,956 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2020-07-28 19:01:26,956 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 19:01:26,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 07:01:26 BoogieIcfgContainer [2020-07-28 19:01:26,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 19:01:26,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 19:01:26,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 19:01:26,960 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 19:01:26,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:01:22" (3/4) ... [2020-07-28 19:01:26,963 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 19:01:27,101 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 19:01:27,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 19:01:27,105 INFO L168 Benchmark]: Toolchain (without parser) took 7350.43 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 328.7 MB). Free memory was 953.5 MB in the beginning and 1.3 GB in the end (delta: -365.4 MB). Peak memory consumption was 368.7 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:27,105 INFO L168 Benchmark]: CDTParser took 0.29 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 19:01:27,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:27,106 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.56 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 19:01:27,107 INFO L168 Benchmark]: Boogie Preprocessor took 42.36 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:27,107 INFO L168 Benchmark]: RCFGBuilder took 1457.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.8 MB in the end (delta: 140.2 MB). Peak memory consumption was 140.2 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:27,108 INFO L168 Benchmark]: TraceAbstraction took 4836.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 958.0 MB in the beginning and 818.2 MB in the end (delta: 139.8 MB). Peak memory consumption was 219.0 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:27,109 INFO L168 Benchmark]: Witness Printer took 141.91 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 112.2 MB). Free memory was 818.2 MB in the beginning and 1.3 GB in the end (delta: -500.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:27,112 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 0.29 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 757.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 104.56 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 42.36 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1457.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.8 MB in the end (delta: 140.2 MB). Peak memory consumption was 140.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4836.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 958.0 MB in the beginning and 818.2 MB in the end (delta: 139.8 MB). Peak memory consumption was 219.0 MB. Max. memory is 11.5 GB. * Witness Printer took 141.91 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 112.2 MB). Free memory was 818.2 MB in the beginning and 1.3 GB in the end (delta: -500.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] int retValue_acc ; [L131] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L796] int retValue_acc ; [L799] retValue_acc = 1 [L800] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] int splverifierCounter ; [L523] int tmp ; [L524] int tmp___0 ; [L525] int tmp___1 ; [L526] int tmp___2 ; [L529] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L539] tmp = __VERIFIER_nondet_int() [L541] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp___2) [L765] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L604] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L611] COND TRUE \read(systemActive) [L633] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L636] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L887] int tmp ; [L888] int tmp___0 ; [L889] int tmp___1 ; [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L893] tmp = isMethaneLevelCritical() [L895] COND FALSE !(\read(tmp)) [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] tmp___0 = getWaterLevel() [L901] COND TRUE tmp___0 == 2 [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L903] tmp___1 = isPumpRunning() [L905] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 278 SDtfs, 447 SDslu, 230 SDs, 0 SdLazy, 41 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 146 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3028 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...