./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product36.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_spec4_product36.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 8094c843e4d897e4501a7b90ca3369f741555e9e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:03:27,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 19:03:27,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 19:03:27,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 19:03:27,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 19:03:27,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 19:03:27,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 19:03:27,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 19:03:27,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 19:03:27,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 19:03:27,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 19:03:27,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 19:03:27,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 19:03:27,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 19:03:27,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 19:03:27,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 19:03:27,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 19:03:27,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 19:03:27,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 19:03:27,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 19:03:27,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 19:03:27,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 19:03:27,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 19:03:27,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 19:03:27,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 19:03:27,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 19:03:27,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 19:03:27,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 19:03:27,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 19:03:27,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 19:03:27,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 19:03:27,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 19:03:27,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 19:03:27,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 19:03:27,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 19:03:27,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 19:03:27,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 19:03:27,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 19:03:27,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 19:03:27,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 19:03:27,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 19:03:27,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 19:03:28,009 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 19:03:28,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 19:03:28,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 19:03:28,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 19:03:28,014 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 19:03:28,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 19:03:28,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 19:03:28,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 19:03:28,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 19:03:28,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 19:03:28,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 19:03:28,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 19:03:28,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 19:03:28,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 19:03:28,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 19:03:28,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 19:03:28,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 19:03:28,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 19:03:28,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 19:03:28,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 19:03:28,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 19:03:28,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 19:03:28,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 19:03:28,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 19:03:28,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 19:03:28,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 19:03:28,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 19:03:28,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 19:03:28,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 19:03:28,022 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 -> 8094c843e4d897e4501a7b90ca3369f741555e9e [2020-07-28 19:03:28,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 19:03:28,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 19:03:28,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 19:03:28,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 19:03:28,354 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 19:03:28,355 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2020-07-28 19:03:28,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1f31186/7fa5920287a64f15ae7830a2ee98f353/FLAG30cd365d6 [2020-07-28 19:03:28,919 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 19:03:28,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2020-07-28 19:03:28,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1f31186/7fa5920287a64f15ae7830a2ee98f353/FLAG30cd365d6 [2020-07-28 19:03:29,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1f31186/7fa5920287a64f15ae7830a2ee98f353 [2020-07-28 19:03:29,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 19:03:29,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 19:03:29,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 19:03:29,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 19:03:29,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 19:03:29,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5f70b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29, skipping insertion in model container [2020-07-28 19:03:29,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 19:03:29,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 19:03:29,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:03:29,688 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 19:03:29,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:03:29,864 INFO L208 MainTranslator]: Completed translation [2020-07-28 19:03:29,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29 WrapperNode [2020-07-28 19:03:29,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 19:03:29,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 19:03:29,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 19:03:29,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 19:03:29,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 19:03:29,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 19:03:29,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 19:03:29,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 19:03:29,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:30,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:30,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:30,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:30,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 19:03:30,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 19:03:30,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 19:03:30,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 19:03:30,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (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 19:03:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 19:03:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 19:03:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 19:03:30,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 19:03:31,419 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 19:03:31,420 INFO L295 CfgBuilder]: Removed 102 assume(true) statements. [2020-07-28 19:03:31,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:03:31 BoogieIcfgContainer [2020-07-28 19:03:31,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 19:03:31,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 19:03:31,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 19:03:31,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 19:03:31,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 07:03:29" (1/3) ... [2020-07-28 19:03:31,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46119ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:03:31, skipping insertion in model container [2020-07-28 19:03:31,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29" (2/3) ... [2020-07-28 19:03:31,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46119ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:03:31, skipping insertion in model container [2020-07-28 19:03:31,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:03:31" (3/3) ... [2020-07-28 19:03:31,435 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-07-28 19:03:31,445 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 19:03:31,454 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 19:03:31,467 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 19:03:31,486 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 19:03:31,486 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 19:03:31,486 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 19:03:31,487 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 19:03:31,487 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 19:03:31,487 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 19:03:31,488 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 19:03:31,488 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 19:03:31,504 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-07-28 19:03:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 19:03:31,510 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:31,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:31,511 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:31,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:31,517 INFO L82 PathProgramCache]: Analyzing trace with hash -502845476, now seen corresponding path program 1 times [2020-07-28 19:03:31,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:31,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298826072] [2020-07-28 19:03:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:31,818 INFO L280 TraceCheckUtils]: 0: Hoare triple {83#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {83#true} is VALID [2020-07-28 19:03:31,818 INFO L280 TraceCheckUtils]: 1: Hoare triple {83#true} havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {83#true} is VALID [2020-07-28 19:03:31,819 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {83#true} is VALID [2020-07-28 19:03:31,819 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#true} main_#t~ret23 := valid_product_#res;assume -2147483648 <= main_#t~ret23 && main_#t~ret23 <= 2147483647;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; {83#true} is VALID [2020-07-28 19:03:31,824 INFO L280 TraceCheckUtils]: 4: Hoare triple {83#true} assume 0 != main_~tmp~3; {83#true} is VALID [2020-07-28 19:03:31,825 INFO L280 TraceCheckUtils]: 5: Hoare triple {83#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {83#true} is VALID [2020-07-28 19:03:31,826 INFO L280 TraceCheckUtils]: 6: Hoare triple {83#true} assume false; {84#false} is VALID [2020-07-28 19:03:31,826 INFO L280 TraceCheckUtils]: 7: Hoare triple {84#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {84#false} is VALID [2020-07-28 19:03:31,827 INFO L280 TraceCheckUtils]: 8: Hoare triple {84#false} assume !(0 != ~pumpRunning~0); {84#false} is VALID [2020-07-28 19:03:31,827 INFO L280 TraceCheckUtils]: 9: Hoare triple {84#false} assume !(0 != ~systemActive~0); {84#false} is VALID [2020-07-28 19:03:31,827 INFO L280 TraceCheckUtils]: 10: Hoare triple {84#false} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {84#false} is VALID [2020-07-28 19:03:31,828 INFO L280 TraceCheckUtils]: 11: Hoare triple {84#false} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {84#false} is VALID [2020-07-28 19:03:31,828 INFO L280 TraceCheckUtils]: 12: Hoare triple {84#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {84#false} is VALID [2020-07-28 19:03:31,829 INFO L280 TraceCheckUtils]: 13: Hoare triple {84#false} __utac_acc__Specification4_spec__1_#t~ret71 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {84#false} is VALID [2020-07-28 19:03:31,829 INFO L280 TraceCheckUtils]: 14: Hoare triple {84#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {84#false} is VALID [2020-07-28 19:03:31,830 INFO L280 TraceCheckUtils]: 15: Hoare triple {84#false} assume !false; {84#false} is VALID [2020-07-28 19:03:31,833 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 19:03:31,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298826072] [2020-07-28 19:03:31,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:31,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:03:31,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562389211] [2020-07-28 19:03:31,842 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 19:03:31,843 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:31,846 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 19:03:31,883 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:31,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 19:03:31,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:31,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 19:03:31,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 19:03:31,896 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2020-07-28 19:03:32,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:32,124 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2020-07-28 19:03:32,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 19:03:32,125 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 19:03:32,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:32,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:03:32,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 233 transitions. [2020-07-28 19:03:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:03:32,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 233 transitions. [2020-07-28 19:03:32,158 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 233 transitions. [2020-07-28 19:03:32,438 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 233 edges. 233 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:32,453 INFO L225 Difference]: With dead ends: 154 [2020-07-28 19:03:32,453 INFO L226 Difference]: Without dead ends: 76 [2020-07-28 19:03:32,457 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 19:03:32,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-28 19:03:32,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-07-28 19:03:32,506 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:32,507 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand 76 states. [2020-07-28 19:03:32,507 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-28 19:03:32,507 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-28 19:03:32,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:32,512 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-07-28 19:03:32,513 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-07-28 19:03:32,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:32,514 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:32,514 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-28 19:03:32,514 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-28 19:03:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:32,520 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-07-28 19:03:32,520 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-07-28 19:03:32,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:32,521 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:32,521 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:32,522 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:32,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-28 19:03:32,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2020-07-28 19:03:32,528 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2020-07-28 19:03:32,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:32,528 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2020-07-28 19:03:32,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 19:03:32,528 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-07-28 19:03:32,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 19:03:32,529 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:32,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:32,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 19:03:32,530 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:32,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:32,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1549602373, now seen corresponding path program 1 times [2020-07-28 19:03:32,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:32,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478562810] [2020-07-28 19:03:32,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:32,708 INFO L280 TraceCheckUtils]: 0: Hoare triple {560#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {560#true} is VALID [2020-07-28 19:03:32,709 INFO L280 TraceCheckUtils]: 1: Hoare triple {560#true} havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {560#true} is VALID [2020-07-28 19:03:32,709 INFO L280 TraceCheckUtils]: 2: Hoare triple {560#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {560#true} is VALID [2020-07-28 19:03:32,709 INFO L280 TraceCheckUtils]: 3: Hoare triple {560#true} main_#t~ret23 := valid_product_#res;assume -2147483648 <= main_#t~ret23 && main_#t~ret23 <= 2147483647;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; {560#true} is VALID [2020-07-28 19:03:32,710 INFO L280 TraceCheckUtils]: 4: Hoare triple {560#true} assume 0 != main_~tmp~3; {560#true} is VALID [2020-07-28 19:03:32,711 INFO L280 TraceCheckUtils]: 5: Hoare triple {560#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {562#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:03:32,712 INFO L280 TraceCheckUtils]: 6: Hoare triple {562#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !false; {562#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:03:32,713 INFO L280 TraceCheckUtils]: 7: Hoare triple {562#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !(test_~splverifierCounter~0 < 4); {561#false} is VALID [2020-07-28 19:03:32,714 INFO L280 TraceCheckUtils]: 8: Hoare triple {561#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {561#false} is VALID [2020-07-28 19:03:32,714 INFO L280 TraceCheckUtils]: 9: Hoare triple {561#false} assume !(0 != ~pumpRunning~0); {561#false} is VALID [2020-07-28 19:03:32,714 INFO L280 TraceCheckUtils]: 10: Hoare triple {561#false} assume !(0 != ~systemActive~0); {561#false} is VALID [2020-07-28 19:03:32,715 INFO L280 TraceCheckUtils]: 11: Hoare triple {561#false} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {561#false} is VALID [2020-07-28 19:03:32,715 INFO L280 TraceCheckUtils]: 12: Hoare triple {561#false} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {561#false} is VALID [2020-07-28 19:03:32,715 INFO L280 TraceCheckUtils]: 13: Hoare triple {561#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {561#false} is VALID [2020-07-28 19:03:32,716 INFO L280 TraceCheckUtils]: 14: Hoare triple {561#false} __utac_acc__Specification4_spec__1_#t~ret71 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {561#false} is VALID [2020-07-28 19:03:32,716 INFO L280 TraceCheckUtils]: 15: Hoare triple {561#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {561#false} is VALID [2020-07-28 19:03:32,717 INFO L280 TraceCheckUtils]: 16: Hoare triple {561#false} assume !false; {561#false} is VALID [2020-07-28 19:03:32,718 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 19:03:32,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478562810] [2020-07-28 19:03:32,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:32,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:03:32,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269877519] [2020-07-28 19:03:32,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 19:03:32,721 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:32,721 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:03:32,752 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:32,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:03:32,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:32,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:03:32,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:32,753 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2020-07-28 19:03:32,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:32,992 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-07-28 19:03:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:03:32,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 19:03:32,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:32,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2020-07-28 19:03:32,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2020-07-28 19:03:32,999 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 108 transitions. [2020-07-28 19:03:33,130 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:33,131 INFO L225 Difference]: With dead ends: 76 [2020-07-28 19:03:33,132 INFO L226 Difference]: Without dead ends: 36 [2020-07-28 19:03:33,133 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 19:03:33,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-28 19:03:33,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-28 19:03:33,173 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:33,173 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand 36 states. [2020-07-28 19:03:33,173 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-28 19:03:33,173 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-28 19:03:33,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,176 INFO L93 Difference]: Finished difference Result 36 states and 51 transitions. [2020-07-28 19:03:33,176 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-07-28 19:03:33,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:33,177 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:33,177 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-28 19:03:33,177 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-28 19:03:33,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,179 INFO L93 Difference]: Finished difference Result 36 states and 51 transitions. [2020-07-28 19:03:33,180 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-07-28 19:03:33,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:33,180 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:33,181 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:33,181 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:33,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-28 19:03:33,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-07-28 19:03:33,183 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2020-07-28 19:03:33,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:33,184 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-07-28 19:03:33,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:03:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-07-28 19:03:33,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 19:03:33,185 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:33,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:33,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 19:03:33,186 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:33,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:33,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1499295122, now seen corresponding path program 1 times [2020-07-28 19:03:33,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:33,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861837856] [2020-07-28 19:03:33,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:33,282 INFO L280 TraceCheckUtils]: 0: Hoare triple {793#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {793#true} is VALID [2020-07-28 19:03:33,282 INFO L280 TraceCheckUtils]: 1: Hoare triple {793#true} havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {793#true} is VALID [2020-07-28 19:03:33,282 INFO L280 TraceCheckUtils]: 2: Hoare triple {793#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {793#true} is VALID [2020-07-28 19:03:33,283 INFO L280 TraceCheckUtils]: 3: Hoare triple {793#true} main_#t~ret23 := valid_product_#res;assume -2147483648 <= main_#t~ret23 && main_#t~ret23 <= 2147483647;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; {793#true} is VALID [2020-07-28 19:03:33,283 INFO L280 TraceCheckUtils]: 4: Hoare triple {793#true} assume 0 != main_~tmp~3; {793#true} is VALID [2020-07-28 19:03:33,283 INFO L280 TraceCheckUtils]: 5: Hoare triple {793#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {793#true} is VALID [2020-07-28 19:03:33,284 INFO L280 TraceCheckUtils]: 6: Hoare triple {793#true} assume !false; {793#true} is VALID [2020-07-28 19:03:33,284 INFO L280 TraceCheckUtils]: 7: Hoare triple {793#true} assume test_~splverifierCounter~0 < 4; {793#true} is VALID [2020-07-28 19:03:33,284 INFO L280 TraceCheckUtils]: 8: Hoare triple {793#true} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {793#true} is VALID [2020-07-28 19:03:33,285 INFO L280 TraceCheckUtils]: 9: Hoare triple {793#true} assume !(0 != test_~tmp~0); {793#true} is VALID [2020-07-28 19:03:33,285 INFO L280 TraceCheckUtils]: 10: Hoare triple {793#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {793#true} is VALID [2020-07-28 19:03:33,285 INFO L280 TraceCheckUtils]: 11: Hoare triple {793#true} assume !(0 != test_~tmp___0~0); {793#true} is VALID [2020-07-28 19:03:33,286 INFO L280 TraceCheckUtils]: 12: Hoare triple {793#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {793#true} is VALID [2020-07-28 19:03:33,287 INFO L280 TraceCheckUtils]: 13: Hoare triple {793#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {795#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:33,288 INFO L280 TraceCheckUtils]: 14: Hoare triple {795#(= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {795#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:33,289 INFO L280 TraceCheckUtils]: 15: Hoare triple {795#(= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {794#false} is VALID [2020-07-28 19:03:33,289 INFO L280 TraceCheckUtils]: 16: Hoare triple {794#false} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {794#false} is VALID [2020-07-28 19:03:33,290 INFO L280 TraceCheckUtils]: 17: Hoare triple {794#false} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {794#false} is VALID [2020-07-28 19:03:33,290 INFO L280 TraceCheckUtils]: 18: Hoare triple {794#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {794#false} is VALID [2020-07-28 19:03:33,291 INFO L280 TraceCheckUtils]: 19: Hoare triple {794#false} __utac_acc__Specification4_spec__1_#t~ret71 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {794#false} is VALID [2020-07-28 19:03:33,291 INFO L280 TraceCheckUtils]: 20: Hoare triple {794#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {794#false} is VALID [2020-07-28 19:03:33,291 INFO L280 TraceCheckUtils]: 21: Hoare triple {794#false} assume !false; {794#false} is VALID [2020-07-28 19:03:33,293 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 19:03:33,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861837856] [2020-07-28 19:03:33,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:33,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:03:33,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565459492] [2020-07-28 19:03:33,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-28 19:03:33,295 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:33,295 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:03:33,329 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:33,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:03:33,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:33,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:03:33,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:33,331 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-07-28 19:03:33,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,511 INFO L93 Difference]: Finished difference Result 96 states and 141 transitions. [2020-07-28 19:03:33,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:03:33,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-28 19:03:33,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:33,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2020-07-28 19:03:33,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:33,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2020-07-28 19:03:33,517 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 141 transitions. [2020-07-28 19:03:33,670 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:33,671 INFO L225 Difference]: With dead ends: 96 [2020-07-28 19:03:33,672 INFO L226 Difference]: Without dead ends: 66 [2020-07-28 19:03:33,672 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 19:03:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-28 19:03:33,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-07-28 19:03:33,702 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:33,702 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states. Second operand 62 states. [2020-07-28 19:03:33,703 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 62 states. [2020-07-28 19:03:33,703 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 62 states. [2020-07-28 19:03:33,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,706 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2020-07-28 19:03:33,706 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-28 19:03:33,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:33,707 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:33,707 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 66 states. [2020-07-28 19:03:33,707 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 66 states. [2020-07-28 19:03:33,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,710 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2020-07-28 19:03:33,710 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-07-28 19:03:33,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:33,710 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:33,711 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:33,711 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-28 19:03:33,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2020-07-28 19:03:33,714 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 22 [2020-07-28 19:03:33,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:33,714 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2020-07-28 19:03:33,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:03:33,714 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2020-07-28 19:03:33,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-28 19:03:33,715 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:33,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:33,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 19:03:33,716 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:33,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:33,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1870150441, now seen corresponding path program 1 times [2020-07-28 19:03:33,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:33,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995510733] [2020-07-28 19:03:33,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:33,771 INFO L280 TraceCheckUtils]: 0: Hoare triple {1148#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,772 INFO L280 TraceCheckUtils]: 1: Hoare triple {1150#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,772 INFO L280 TraceCheckUtils]: 2: Hoare triple {1150#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,773 INFO L280 TraceCheckUtils]: 3: Hoare triple {1150#(= 0 ~pumpRunning~0)} main_#t~ret23 := valid_product_#res;assume -2147483648 <= main_#t~ret23 && main_#t~ret23 <= 2147483647;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,773 INFO L280 TraceCheckUtils]: 4: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~3; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,774 INFO L280 TraceCheckUtils]: 5: Hoare triple {1150#(= 0 ~pumpRunning~0)} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,775 INFO L280 TraceCheckUtils]: 6: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume !false; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,775 INFO L280 TraceCheckUtils]: 7: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,776 INFO L280 TraceCheckUtils]: 8: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,776 INFO L280 TraceCheckUtils]: 9: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~0); {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,777 INFO L280 TraceCheckUtils]: 10: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,777 INFO L280 TraceCheckUtils]: 11: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~0); {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,778 INFO L280 TraceCheckUtils]: 12: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,779 INFO L280 TraceCheckUtils]: 13: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,779 INFO L280 TraceCheckUtils]: 14: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,780 INFO L280 TraceCheckUtils]: 15: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {1150#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:33,780 INFO L280 TraceCheckUtils]: 16: Hoare triple {1150#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1149#false} is VALID [2020-07-28 19:03:33,781 INFO L280 TraceCheckUtils]: 17: Hoare triple {1149#false} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {1149#false} is VALID [2020-07-28 19:03:33,781 INFO L280 TraceCheckUtils]: 18: Hoare triple {1149#false} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {1149#false} is VALID [2020-07-28 19:03:33,781 INFO L280 TraceCheckUtils]: 19: Hoare triple {1149#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {1149#false} is VALID [2020-07-28 19:03:33,781 INFO L280 TraceCheckUtils]: 20: Hoare triple {1149#false} __utac_acc__Specification4_spec__1_#t~ret71 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {1149#false} is VALID [2020-07-28 19:03:33,782 INFO L280 TraceCheckUtils]: 21: Hoare triple {1149#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {1149#false} is VALID [2020-07-28 19:03:33,782 INFO L280 TraceCheckUtils]: 22: Hoare triple {1149#false} assume !false; {1149#false} is VALID [2020-07-28 19:03:33,783 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 19:03:33,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995510733] [2020-07-28 19:03:33,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:33,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:03:33,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353001418] [2020-07-28 19:03:33,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-28 19:03:33,785 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:33,785 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:03:33,814 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:33,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:03:33,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:33,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:03:33,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:33,816 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand 3 states. [2020-07-28 19:03:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,998 INFO L93 Difference]: Finished difference Result 159 states and 238 transitions. [2020-07-28 19:03:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:03:33,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-28 19:03:33,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:33,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2020-07-28 19:03:34,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:34,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2020-07-28 19:03:34,003 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 129 transitions. [2020-07-28 19:03:34,163 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 19:03:34,167 INFO L225 Difference]: With dead ends: 159 [2020-07-28 19:03:34,167 INFO L226 Difference]: Without dead ends: 103 [2020-07-28 19:03:34,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:34,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-07-28 19:03:34,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2020-07-28 19:03:34,229 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:34,229 INFO L82 GeneralOperation]: Start isEquivalent. First operand 103 states. Second operand 101 states. [2020-07-28 19:03:34,229 INFO L74 IsIncluded]: Start isIncluded. First operand 103 states. Second operand 101 states. [2020-07-28 19:03:34,230 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 101 states. [2020-07-28 19:03:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,234 INFO L93 Difference]: Finished difference Result 103 states and 148 transitions. [2020-07-28 19:03:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 148 transitions. [2020-07-28 19:03:34,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:34,235 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:34,235 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 103 states. [2020-07-28 19:03:34,236 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 103 states. [2020-07-28 19:03:34,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,240 INFO L93 Difference]: Finished difference Result 103 states and 148 transitions. [2020-07-28 19:03:34,240 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 148 transitions. [2020-07-28 19:03:34,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:34,241 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:34,241 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:34,241 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:34,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-07-28 19:03:34,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2020-07-28 19:03:34,246 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 23 [2020-07-28 19:03:34,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:34,247 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-07-28 19:03:34,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:03:34,247 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2020-07-28 19:03:34,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 19:03:34,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:34,248 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 19:03:34,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 19:03:34,249 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:34,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:34,249 INFO L82 PathProgramCache]: Analyzing trace with hash 944519591, now seen corresponding path program 1 times [2020-07-28 19:03:34,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:34,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276173569] [2020-07-28 19:03:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:34,320 INFO L280 TraceCheckUtils]: 0: Hoare triple {1720#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,321 INFO L280 TraceCheckUtils]: 1: Hoare triple {1722#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,322 INFO L280 TraceCheckUtils]: 2: Hoare triple {1722#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,323 INFO L280 TraceCheckUtils]: 3: Hoare triple {1722#(= 1 ~waterLevel~0)} main_#t~ret23 := valid_product_#res;assume -2147483648 <= main_#t~ret23 && main_#t~ret23 <= 2147483647;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,324 INFO L280 TraceCheckUtils]: 4: Hoare triple {1722#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~3; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,324 INFO L280 TraceCheckUtils]: 5: Hoare triple {1722#(= 1 ~waterLevel~0)} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,325 INFO L280 TraceCheckUtils]: 6: Hoare triple {1722#(= 1 ~waterLevel~0)} assume !false; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,325 INFO L280 TraceCheckUtils]: 7: Hoare triple {1722#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,326 INFO L280 TraceCheckUtils]: 8: Hoare triple {1722#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,327 INFO L280 TraceCheckUtils]: 9: Hoare triple {1722#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp~0); {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,327 INFO L280 TraceCheckUtils]: 10: Hoare triple {1722#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,328 INFO L280 TraceCheckUtils]: 11: Hoare triple {1722#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,329 INFO L280 TraceCheckUtils]: 12: Hoare triple {1722#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,329 INFO L280 TraceCheckUtils]: 13: Hoare triple {1722#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp___2~0);assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___1~0 := test_#t~nondet3;havoc test_#t~nondet3; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,330 INFO L280 TraceCheckUtils]: 14: Hoare triple {1722#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___1~0; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,331 INFO L280 TraceCheckUtils]: 15: Hoare triple {1722#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,331 INFO L280 TraceCheckUtils]: 16: Hoare triple {1722#(= 1 ~waterLevel~0)} ~systemActive~0 := 0; {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,332 INFO L280 TraceCheckUtils]: 17: Hoare triple {1722#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,333 INFO L280 TraceCheckUtils]: 18: Hoare triple {1722#(= 1 ~waterLevel~0)} assume !(0 != ~systemActive~0); {1722#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:34,334 INFO L280 TraceCheckUtils]: 19: Hoare triple {1722#(= 1 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {1723#(= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:34,335 INFO L280 TraceCheckUtils]: 20: Hoare triple {1723#(= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {1724#(= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7)} is VALID [2020-07-28 19:03:34,335 INFO L280 TraceCheckUtils]: 21: Hoare triple {1724#(= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {1721#false} is VALID [2020-07-28 19:03:34,336 INFO L280 TraceCheckUtils]: 22: Hoare triple {1721#false} __utac_acc__Specification4_spec__1_#t~ret71 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {1721#false} is VALID [2020-07-28 19:03:34,336 INFO L280 TraceCheckUtils]: 23: Hoare triple {1721#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {1721#false} is VALID [2020-07-28 19:03:34,336 INFO L280 TraceCheckUtils]: 24: Hoare triple {1721#false} assume !false; {1721#false} is VALID [2020-07-28 19:03:34,337 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 19:03:34,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276173569] [2020-07-28 19:03:34,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:34,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 19:03:34,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598272480] [2020-07-28 19:03:34,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 19:03:34,339 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:34,340 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:03:34,372 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 19:03:34,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:03:34,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:34,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:03:34,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:34,373 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand 5 states. [2020-07-28 19:03:35,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,178 INFO L93 Difference]: Finished difference Result 369 states and 545 transitions. [2020-07-28 19:03:35,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 19:03:35,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 19:03:35,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:35,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:35,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2020-07-28 19:03:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2020-07-28 19:03:35,184 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 200 transitions. [2020-07-28 19:03:35,411 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 200 edges. 200 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:35,423 INFO L225 Difference]: With dead ends: 369 [2020-07-28 19:03:35,424 INFO L226 Difference]: Without dead ends: 274 [2020-07-28 19:03:35,425 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 19:03:35,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-07-28 19:03:35,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 182. [2020-07-28 19:03:35,609 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:35,610 INFO L82 GeneralOperation]: Start isEquivalent. First operand 274 states. Second operand 182 states. [2020-07-28 19:03:35,610 INFO L74 IsIncluded]: Start isIncluded. First operand 274 states. Second operand 182 states. [2020-07-28 19:03:35,610 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 182 states. [2020-07-28 19:03:35,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,621 INFO L93 Difference]: Finished difference Result 274 states and 389 transitions. [2020-07-28 19:03:35,621 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 389 transitions. [2020-07-28 19:03:35,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:35,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:35,622 INFO L74 IsIncluded]: Start isIncluded. First operand 182 states. Second operand 274 states. [2020-07-28 19:03:35,622 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 274 states. [2020-07-28 19:03:35,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,634 INFO L93 Difference]: Finished difference Result 274 states and 389 transitions. [2020-07-28 19:03:35,634 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 389 transitions. [2020-07-28 19:03:35,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:35,635 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:35,635 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:35,635 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-07-28 19:03:35,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 256 transitions. [2020-07-28 19:03:35,642 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 256 transitions. Word has length 25 [2020-07-28 19:03:35,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:35,643 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 256 transitions. [2020-07-28 19:03:35,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:03:35,643 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 256 transitions. [2020-07-28 19:03:35,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-28 19:03:35,644 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:35,644 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 19:03:35,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 19:03:35,644 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:35,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1014789399, now seen corresponding path program 1 times [2020-07-28 19:03:35,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:35,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766713141] [2020-07-28 19:03:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:35,736 INFO L280 TraceCheckUtils]: 0: Hoare triple {3052#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {3054#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,736 INFO L280 TraceCheckUtils]: 1: Hoare triple {3054#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {3054#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,737 INFO L280 TraceCheckUtils]: 2: Hoare triple {3054#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {3054#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,738 INFO L280 TraceCheckUtils]: 3: Hoare triple {3054#(= 1 ~waterLevel~0)} main_#t~ret23 := valid_product_#res;assume -2147483648 <= main_#t~ret23 && main_#t~ret23 <= 2147483647;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; {3054#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,740 INFO L280 TraceCheckUtils]: 4: Hoare triple {3054#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~3; {3054#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,744 INFO L280 TraceCheckUtils]: 5: Hoare triple {3054#(= 1 ~waterLevel~0)} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {3054#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,745 INFO L280 TraceCheckUtils]: 6: Hoare triple {3054#(= 1 ~waterLevel~0)} assume !false; {3054#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,746 INFO L280 TraceCheckUtils]: 7: Hoare triple {3054#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {3054#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,746 INFO L280 TraceCheckUtils]: 8: Hoare triple {3054#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {3054#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,747 INFO L280 TraceCheckUtils]: 9: Hoare triple {3054#(= 1 ~waterLevel~0)} assume 0 != test_~tmp~0; {3054#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,748 INFO L280 TraceCheckUtils]: 10: Hoare triple {3054#(= 1 ~waterLevel~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {3055#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,763 INFO L280 TraceCheckUtils]: 11: Hoare triple {3055#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {3055#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,766 INFO L280 TraceCheckUtils]: 12: Hoare triple {3055#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {3055#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,767 INFO L280 TraceCheckUtils]: 13: Hoare triple {3055#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {3055#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,767 INFO L280 TraceCheckUtils]: 14: Hoare triple {3055#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___2~0);assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___1~0 := test_#t~nondet3;havoc test_#t~nondet3; {3055#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,768 INFO L280 TraceCheckUtils]: 15: Hoare triple {3055#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___1~0; {3055#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,768 INFO L280 TraceCheckUtils]: 16: Hoare triple {3055#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {3055#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,776 INFO L280 TraceCheckUtils]: 17: Hoare triple {3055#(<= 2 ~waterLevel~0)} ~systemActive~0 := 0; {3055#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,777 INFO L280 TraceCheckUtils]: 18: Hoare triple {3055#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {3055#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,778 INFO L280 TraceCheckUtils]: 19: Hoare triple {3055#(<= 2 ~waterLevel~0)} assume !(0 != ~systemActive~0); {3055#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:35,779 INFO L280 TraceCheckUtils]: 20: Hoare triple {3055#(<= 2 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {3056#(<= 2 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:35,780 INFO L280 TraceCheckUtils]: 21: Hoare triple {3056#(<= 2 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {3057#(<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7)} is VALID [2020-07-28 19:03:35,780 INFO L280 TraceCheckUtils]: 22: Hoare triple {3057#(<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {3053#false} is VALID [2020-07-28 19:03:35,781 INFO L280 TraceCheckUtils]: 23: Hoare triple {3053#false} __utac_acc__Specification4_spec__1_#t~ret71 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {3053#false} is VALID [2020-07-28 19:03:35,781 INFO L280 TraceCheckUtils]: 24: Hoare triple {3053#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {3053#false} is VALID [2020-07-28 19:03:35,781 INFO L280 TraceCheckUtils]: 25: Hoare triple {3053#false} assume !false; {3053#false} is VALID [2020-07-28 19:03:35,782 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 19:03:35,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766713141] [2020-07-28 19:03:35,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:35,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:35,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474438107] [2020-07-28 19:03:35,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-28 19:03:35,783 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:35,783 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 19:03:35,833 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:35,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 19:03:35,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:35,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 19:03:35,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-28 19:03:35,834 INFO L87 Difference]: Start difference. First operand 182 states and 256 transitions. Second operand 6 states. [2020-07-28 19:03:36,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:36,784 INFO L93 Difference]: Finished difference Result 431 states and 628 transitions. [2020-07-28 19:03:36,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 19:03:36,784 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-28 19:03:36,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:36,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 19:03:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 216 transitions. [2020-07-28 19:03:36,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 19:03:36,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 216 transitions. [2020-07-28 19:03:36,792 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 216 transitions. [2020-07-28 19:03:37,046 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 216 edges. 216 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:37,056 INFO L225 Difference]: With dead ends: 431 [2020-07-28 19:03:37,056 INFO L226 Difference]: Without dead ends: 336 [2020-07-28 19:03:37,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-07-28 19:03:37,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-07-28 19:03:37,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2020-07-28 19:03:37,335 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:37,335 INFO L82 GeneralOperation]: Start isEquivalent. First operand 336 states. Second operand 261 states. [2020-07-28 19:03:37,335 INFO L74 IsIncluded]: Start isIncluded. First operand 336 states. Second operand 261 states. [2020-07-28 19:03:37,335 INFO L87 Difference]: Start difference. First operand 336 states. Second operand 261 states. [2020-07-28 19:03:37,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:37,349 INFO L93 Difference]: Finished difference Result 336 states and 471 transitions. [2020-07-28 19:03:37,349 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 471 transitions. [2020-07-28 19:03:37,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:37,350 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:37,350 INFO L74 IsIncluded]: Start isIncluded. First operand 261 states. Second operand 336 states. [2020-07-28 19:03:37,350 INFO L87 Difference]: Start difference. First operand 261 states. Second operand 336 states. [2020-07-28 19:03:37,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:37,363 INFO L93 Difference]: Finished difference Result 336 states and 471 transitions. [2020-07-28 19:03:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 471 transitions. [2020-07-28 19:03:37,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:37,364 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:37,364 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:37,364 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:37,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-07-28 19:03:37,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 363 transitions. [2020-07-28 19:03:37,373 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 363 transitions. Word has length 26 [2020-07-28 19:03:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:37,374 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 363 transitions. [2020-07-28 19:03:37,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 19:03:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 363 transitions. [2020-07-28 19:03:37,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-28 19:03:37,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:37,375 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:03:37,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 19:03:37,376 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:37,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:37,376 INFO L82 PathProgramCache]: Analyzing trace with hash -122499722, now seen corresponding path program 1 times [2020-07-28 19:03:37,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:37,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446691986] [2020-07-28 19:03:37,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:37,460 INFO L280 TraceCheckUtils]: 0: Hoare triple {4704#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {4704#true} is VALID [2020-07-28 19:03:37,460 INFO L280 TraceCheckUtils]: 1: Hoare triple {4704#true} havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {4704#true} is VALID [2020-07-28 19:03:37,460 INFO L280 TraceCheckUtils]: 2: Hoare triple {4704#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {4704#true} is VALID [2020-07-28 19:03:37,460 INFO L280 TraceCheckUtils]: 3: Hoare triple {4704#true} main_#t~ret23 := valid_product_#res;assume -2147483648 <= main_#t~ret23 && main_#t~ret23 <= 2147483647;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; {4704#true} is VALID [2020-07-28 19:03:37,461 INFO L280 TraceCheckUtils]: 4: Hoare triple {4704#true} assume 0 != main_~tmp~3; {4704#true} is VALID [2020-07-28 19:03:37,461 INFO L280 TraceCheckUtils]: 5: Hoare triple {4704#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {4704#true} is VALID [2020-07-28 19:03:37,461 INFO L280 TraceCheckUtils]: 6: Hoare triple {4704#true} assume !false; {4704#true} is VALID [2020-07-28 19:03:37,461 INFO L280 TraceCheckUtils]: 7: Hoare triple {4704#true} assume test_~splverifierCounter~0 < 4; {4704#true} is VALID [2020-07-28 19:03:37,462 INFO L280 TraceCheckUtils]: 8: Hoare triple {4704#true} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {4704#true} is VALID [2020-07-28 19:03:37,462 INFO L280 TraceCheckUtils]: 9: Hoare triple {4704#true} assume !(0 != test_~tmp~0); {4704#true} is VALID [2020-07-28 19:03:37,462 INFO L280 TraceCheckUtils]: 10: Hoare triple {4704#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {4704#true} is VALID [2020-07-28 19:03:37,462 INFO L280 TraceCheckUtils]: 11: Hoare triple {4704#true} assume !(0 != test_~tmp___0~0); {4704#true} is VALID [2020-07-28 19:03:37,462 INFO L280 TraceCheckUtils]: 12: Hoare triple {4704#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {4704#true} is VALID [2020-07-28 19:03:37,463 INFO L280 TraceCheckUtils]: 13: Hoare triple {4704#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {4704#true} is VALID [2020-07-28 19:03:37,463 INFO L280 TraceCheckUtils]: 14: Hoare triple {4704#true} assume !(0 != ~pumpRunning~0); {4704#true} is VALID [2020-07-28 19:03:37,463 INFO L280 TraceCheckUtils]: 15: Hoare triple {4704#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {4704#true} is VALID [2020-07-28 19:03:37,463 INFO L280 TraceCheckUtils]: 16: Hoare triple {4704#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {4704#true} is VALID [2020-07-28 19:03:37,464 INFO L280 TraceCheckUtils]: 17: Hoare triple {4704#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {4704#true} is VALID [2020-07-28 19:03:37,464 INFO L280 TraceCheckUtils]: 18: Hoare triple {4704#true} isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret22 && isHighWaterLevel_#t~ret22 <= 2147483647;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; {4704#true} is VALID [2020-07-28 19:03:37,466 INFO L280 TraceCheckUtils]: 19: Hoare triple {4704#true} assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~1 := 0; {4706#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1)} is VALID [2020-07-28 19:03:37,467 INFO L280 TraceCheckUtils]: 20: Hoare triple {4706#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1)} isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; {4707#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} is VALID [2020-07-28 19:03:37,467 INFO L280 TraceCheckUtils]: 21: Hoare triple {4707#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} processEnvironment_#t~ret4 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret4 && processEnvironment_#t~ret4 <= 2147483647;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; {4708#(= 0 ULTIMATE.start_processEnvironment_~tmp~1)} is VALID [2020-07-28 19:03:37,468 INFO L280 TraceCheckUtils]: 22: Hoare triple {4708#(= 0 ULTIMATE.start_processEnvironment_~tmp~1)} assume 0 != processEnvironment_~tmp~1;~pumpRunning~0 := 1; {4705#false} is VALID [2020-07-28 19:03:37,468 INFO L280 TraceCheckUtils]: 23: Hoare triple {4705#false} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {4705#false} is VALID [2020-07-28 19:03:37,468 INFO L280 TraceCheckUtils]: 24: Hoare triple {4705#false} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {4705#false} is VALID [2020-07-28 19:03:37,468 INFO L280 TraceCheckUtils]: 25: Hoare triple {4705#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); {4705#false} is VALID [2020-07-28 19:03:37,469 INFO L280 TraceCheckUtils]: 26: Hoare triple {4705#false} assume !false; {4705#false} is VALID [2020-07-28 19:03:37,469 INFO L280 TraceCheckUtils]: 27: Hoare triple {4705#false} assume test_~splverifierCounter~0 < 4; {4705#false} is VALID [2020-07-28 19:03:37,469 INFO L280 TraceCheckUtils]: 28: Hoare triple {4705#false} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {4705#false} is VALID [2020-07-28 19:03:37,469 INFO L280 TraceCheckUtils]: 29: Hoare triple {4705#false} assume !(0 != test_~tmp~0); {4705#false} is VALID [2020-07-28 19:03:37,470 INFO L280 TraceCheckUtils]: 30: Hoare triple {4705#false} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {4705#false} is VALID [2020-07-28 19:03:37,470 INFO L280 TraceCheckUtils]: 31: Hoare triple {4705#false} assume !(0 != test_~tmp___0~0); {4705#false} is VALID [2020-07-28 19:03:37,470 INFO L280 TraceCheckUtils]: 32: Hoare triple {4705#false} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {4705#false} is VALID [2020-07-28 19:03:37,470 INFO L280 TraceCheckUtils]: 33: Hoare triple {4705#false} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {4705#false} is VALID [2020-07-28 19:03:37,470 INFO L280 TraceCheckUtils]: 34: Hoare triple {4705#false} assume 0 != ~pumpRunning~0; {4705#false} is VALID [2020-07-28 19:03:37,471 INFO L280 TraceCheckUtils]: 35: Hoare triple {4705#false} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {4705#false} is VALID [2020-07-28 19:03:37,471 INFO L280 TraceCheckUtils]: 36: Hoare triple {4705#false} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {4705#false} is VALID [2020-07-28 19:03:37,471 INFO L280 TraceCheckUtils]: 37: Hoare triple {4705#false} assume !(0 == ~pumpRunning~0); {4705#false} is VALID [2020-07-28 19:03:37,472 INFO L280 TraceCheckUtils]: 38: Hoare triple {4705#false} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {4705#false} is VALID [2020-07-28 19:03:37,472 INFO L280 TraceCheckUtils]: 39: Hoare triple {4705#false} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {4705#false} is VALID [2020-07-28 19:03:37,472 INFO L280 TraceCheckUtils]: 40: Hoare triple {4705#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {4705#false} is VALID [2020-07-28 19:03:37,472 INFO L280 TraceCheckUtils]: 41: Hoare triple {4705#false} __utac_acc__Specification4_spec__1_#t~ret71 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {4705#false} is VALID [2020-07-28 19:03:37,472 INFO L280 TraceCheckUtils]: 42: Hoare triple {4705#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {4705#false} is VALID [2020-07-28 19:03:37,473 INFO L280 TraceCheckUtils]: 43: Hoare triple {4705#false} assume !false; {4705#false} is VALID [2020-07-28 19:03:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-28 19:03:37,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446691986] [2020-07-28 19:03:37,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:37,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:37,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35513462] [2020-07-28 19:03:37,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-07-28 19:03:37,481 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:37,483 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:03:37,532 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:37,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:03:37,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:37,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:03:37,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:37,533 INFO L87 Difference]: Start difference. First operand 261 states and 363 transitions. Second operand 5 states. [2020-07-28 19:03:38,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:38,642 INFO L93 Difference]: Finished difference Result 729 states and 1006 transitions. [2020-07-28 19:03:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 19:03:38,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-07-28 19:03:38,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:38,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:38,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2020-07-28 19:03:38,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:38,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2020-07-28 19:03:38,646 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 161 transitions. [2020-07-28 19:03:38,834 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 161 edges. 161 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:38,850 INFO L225 Difference]: With dead ends: 729 [2020-07-28 19:03:38,850 INFO L226 Difference]: Without dead ends: 474 [2020-07-28 19:03:38,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 19:03:38,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-07-28 19:03:39,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 279. [2020-07-28 19:03:39,179 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:39,179 INFO L82 GeneralOperation]: Start isEquivalent. First operand 474 states. Second operand 279 states. [2020-07-28 19:03:39,180 INFO L74 IsIncluded]: Start isIncluded. First operand 474 states. Second operand 279 states. [2020-07-28 19:03:39,180 INFO L87 Difference]: Start difference. First operand 474 states. Second operand 279 states. [2020-07-28 19:03:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:39,196 INFO L93 Difference]: Finished difference Result 474 states and 643 transitions. [2020-07-28 19:03:39,196 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 643 transitions. [2020-07-28 19:03:39,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:39,197 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:39,197 INFO L74 IsIncluded]: Start isIncluded. First operand 279 states. Second operand 474 states. [2020-07-28 19:03:39,198 INFO L87 Difference]: Start difference. First operand 279 states. Second operand 474 states. [2020-07-28 19:03:39,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:39,214 INFO L93 Difference]: Finished difference Result 474 states and 643 transitions. [2020-07-28 19:03:39,214 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 643 transitions. [2020-07-28 19:03:39,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:39,216 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:39,216 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:39,216 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:39,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-07-28 19:03:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 381 transitions. [2020-07-28 19:03:39,223 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 381 transitions. Word has length 44 [2020-07-28 19:03:39,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:39,224 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 381 transitions. [2020-07-28 19:03:39,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:03:39,224 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 381 transitions. [2020-07-28 19:03:39,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-28 19:03:39,225 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:39,226 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:03:39,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 19:03:39,226 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:39,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:39,227 INFO L82 PathProgramCache]: Analyzing trace with hash 18048888, now seen corresponding path program 1 times [2020-07-28 19:03:39,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:39,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407767647] [2020-07-28 19:03:39,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:39,294 INFO L280 TraceCheckUtils]: 0: Hoare triple {7071#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {7071#true} is VALID [2020-07-28 19:03:39,294 INFO L280 TraceCheckUtils]: 1: Hoare triple {7071#true} havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {7071#true} is VALID [2020-07-28 19:03:39,294 INFO L280 TraceCheckUtils]: 2: Hoare triple {7071#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {7071#true} is VALID [2020-07-28 19:03:39,295 INFO L280 TraceCheckUtils]: 3: Hoare triple {7071#true} main_#t~ret23 := valid_product_#res;assume -2147483648 <= main_#t~ret23 && main_#t~ret23 <= 2147483647;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; {7071#true} is VALID [2020-07-28 19:03:39,295 INFO L280 TraceCheckUtils]: 4: Hoare triple {7071#true} assume 0 != main_~tmp~3; {7071#true} is VALID [2020-07-28 19:03:39,295 INFO L280 TraceCheckUtils]: 5: Hoare triple {7071#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {7071#true} is VALID [2020-07-28 19:03:39,295 INFO L280 TraceCheckUtils]: 6: Hoare triple {7071#true} assume !false; {7071#true} is VALID [2020-07-28 19:03:39,295 INFO L280 TraceCheckUtils]: 7: Hoare triple {7071#true} assume test_~splverifierCounter~0 < 4; {7071#true} is VALID [2020-07-28 19:03:39,296 INFO L280 TraceCheckUtils]: 8: Hoare triple {7071#true} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {7071#true} is VALID [2020-07-28 19:03:39,296 INFO L280 TraceCheckUtils]: 9: Hoare triple {7071#true} assume !(0 != test_~tmp~0); {7071#true} is VALID [2020-07-28 19:03:39,296 INFO L280 TraceCheckUtils]: 10: Hoare triple {7071#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {7071#true} is VALID [2020-07-28 19:03:39,297 INFO L280 TraceCheckUtils]: 11: Hoare triple {7071#true} assume !(0 != test_~tmp___0~0); {7071#true} is VALID [2020-07-28 19:03:39,297 INFO L280 TraceCheckUtils]: 12: Hoare triple {7071#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {7071#true} is VALID [2020-07-28 19:03:39,298 INFO L280 TraceCheckUtils]: 13: Hoare triple {7071#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {7073#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:39,299 INFO L280 TraceCheckUtils]: 14: Hoare triple {7073#(= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {7073#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:39,299 INFO L280 TraceCheckUtils]: 15: Hoare triple {7073#(= 1 ~systemActive~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {7071#true} is VALID [2020-07-28 19:03:39,299 INFO L280 TraceCheckUtils]: 16: Hoare triple {7071#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {7071#true} is VALID [2020-07-28 19:03:39,300 INFO L280 TraceCheckUtils]: 17: Hoare triple {7071#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {7074#(not (= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|))} is VALID [2020-07-28 19:03:39,301 INFO L280 TraceCheckUtils]: 18: Hoare triple {7074#(not (= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|))} isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret22 && isHighWaterLevel_#t~ret22 <= 2147483647;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; {7075#(not (= 0 ULTIMATE.start_isHighWaterLevel_~tmp~2))} is VALID [2020-07-28 19:03:39,302 INFO L280 TraceCheckUtils]: 19: Hoare triple {7075#(not (= 0 ULTIMATE.start_isHighWaterLevel_~tmp~2))} assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~1 := 1; {7072#false} is VALID [2020-07-28 19:03:39,302 INFO L280 TraceCheckUtils]: 20: Hoare triple {7072#false} isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; {7072#false} is VALID [2020-07-28 19:03:39,302 INFO L280 TraceCheckUtils]: 21: Hoare triple {7072#false} processEnvironment_#t~ret4 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret4 && processEnvironment_#t~ret4 <= 2147483647;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; {7072#false} is VALID [2020-07-28 19:03:39,302 INFO L280 TraceCheckUtils]: 22: Hoare triple {7072#false} assume 0 != processEnvironment_~tmp~1;~pumpRunning~0 := 1; {7072#false} is VALID [2020-07-28 19:03:39,302 INFO L280 TraceCheckUtils]: 23: Hoare triple {7072#false} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {7072#false} is VALID [2020-07-28 19:03:39,303 INFO L280 TraceCheckUtils]: 24: Hoare triple {7072#false} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {7072#false} is VALID [2020-07-28 19:03:39,303 INFO L280 TraceCheckUtils]: 25: Hoare triple {7072#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); {7072#false} is VALID [2020-07-28 19:03:39,303 INFO L280 TraceCheckUtils]: 26: Hoare triple {7072#false} assume !false; {7072#false} is VALID [2020-07-28 19:03:39,304 INFO L280 TraceCheckUtils]: 27: Hoare triple {7072#false} assume test_~splverifierCounter~0 < 4; {7072#false} is VALID [2020-07-28 19:03:39,304 INFO L280 TraceCheckUtils]: 28: Hoare triple {7072#false} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {7072#false} is VALID [2020-07-28 19:03:39,304 INFO L280 TraceCheckUtils]: 29: Hoare triple {7072#false} assume !(0 != test_~tmp~0); {7072#false} is VALID [2020-07-28 19:03:39,304 INFO L280 TraceCheckUtils]: 30: Hoare triple {7072#false} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {7072#false} is VALID [2020-07-28 19:03:39,304 INFO L280 TraceCheckUtils]: 31: Hoare triple {7072#false} assume !(0 != test_~tmp___0~0); {7072#false} is VALID [2020-07-28 19:03:39,305 INFO L280 TraceCheckUtils]: 32: Hoare triple {7072#false} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {7072#false} is VALID [2020-07-28 19:03:39,305 INFO L280 TraceCheckUtils]: 33: Hoare triple {7072#false} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {7072#false} is VALID [2020-07-28 19:03:39,305 INFO L280 TraceCheckUtils]: 34: Hoare triple {7072#false} assume 0 != ~pumpRunning~0; {7072#false} is VALID [2020-07-28 19:03:39,306 INFO L280 TraceCheckUtils]: 35: Hoare triple {7072#false} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {7072#false} is VALID [2020-07-28 19:03:39,306 INFO L280 TraceCheckUtils]: 36: Hoare triple {7072#false} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {7072#false} is VALID [2020-07-28 19:03:39,306 INFO L280 TraceCheckUtils]: 37: Hoare triple {7072#false} assume !(0 == ~pumpRunning~0); {7072#false} is VALID [2020-07-28 19:03:39,306 INFO L280 TraceCheckUtils]: 38: Hoare triple {7072#false} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {7072#false} is VALID [2020-07-28 19:03:39,307 INFO L280 TraceCheckUtils]: 39: Hoare triple {7072#false} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {7072#false} is VALID [2020-07-28 19:03:39,307 INFO L280 TraceCheckUtils]: 40: Hoare triple {7072#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {7072#false} is VALID [2020-07-28 19:03:39,307 INFO L280 TraceCheckUtils]: 41: Hoare triple {7072#false} __utac_acc__Specification4_spec__1_#t~ret71 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {7072#false} is VALID [2020-07-28 19:03:39,307 INFO L280 TraceCheckUtils]: 42: Hoare triple {7072#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {7072#false} is VALID [2020-07-28 19:03:39,308 INFO L280 TraceCheckUtils]: 43: Hoare triple {7072#false} assume !false; {7072#false} is VALID [2020-07-28 19:03:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-28 19:03:39,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407767647] [2020-07-28 19:03:39,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:39,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:39,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508885121] [2020-07-28 19:03:39,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-07-28 19:03:39,312 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:39,312 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:03:39,360 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:39,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:03:39,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:39,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:03:39,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:39,361 INFO L87 Difference]: Start difference. First operand 279 states and 381 transitions. Second operand 5 states. [2020-07-28 19:03:40,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:40,608 INFO L93 Difference]: Finished difference Result 651 states and 878 transitions. [2020-07-28 19:03:40,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 19:03:40,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-07-28 19:03:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:40,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:40,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 268 transitions. [2020-07-28 19:03:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 268 transitions. [2020-07-28 19:03:40,613 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 268 transitions. [2020-07-28 19:03:40,940 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 268 edges. 268 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:40,951 INFO L225 Difference]: With dead ends: 651 [2020-07-28 19:03:40,952 INFO L226 Difference]: Without dead ends: 378 [2020-07-28 19:03:40,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 19:03:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-07-28 19:03:41,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 236. [2020-07-28 19:03:41,335 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:41,335 INFO L82 GeneralOperation]: Start isEquivalent. First operand 378 states. Second operand 236 states. [2020-07-28 19:03:41,335 INFO L74 IsIncluded]: Start isIncluded. First operand 378 states. Second operand 236 states. [2020-07-28 19:03:41,336 INFO L87 Difference]: Start difference. First operand 378 states. Second operand 236 states. [2020-07-28 19:03:41,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:41,347 INFO L93 Difference]: Finished difference Result 378 states and 499 transitions. [2020-07-28 19:03:41,347 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 499 transitions. [2020-07-28 19:03:41,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:41,348 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:41,349 INFO L74 IsIncluded]: Start isIncluded. First operand 236 states. Second operand 378 states. [2020-07-28 19:03:41,349 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 378 states. [2020-07-28 19:03:41,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:41,359 INFO L93 Difference]: Finished difference Result 378 states and 499 transitions. [2020-07-28 19:03:41,360 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 499 transitions. [2020-07-28 19:03:41,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:41,361 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:41,361 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:41,361 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-07-28 19:03:41,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 317 transitions. [2020-07-28 19:03:41,367 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 317 transitions. Word has length 44 [2020-07-28 19:03:41,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:41,367 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 317 transitions. [2020-07-28 19:03:41,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:03:41,367 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 317 transitions. [2020-07-28 19:03:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-28 19:03:41,368 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:41,369 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 19:03:41,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 19:03:41,369 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:41,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:41,370 INFO L82 PathProgramCache]: Analyzing trace with hash 61594744, now seen corresponding path program 1 times [2020-07-28 19:03:41,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:41,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719831761] [2020-07-28 19:03:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:41,481 INFO L280 TraceCheckUtils]: 0: Hoare triple {9079#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {9081#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,483 INFO L280 TraceCheckUtils]: 1: Hoare triple {9081#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {9081#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,484 INFO L280 TraceCheckUtils]: 2: Hoare triple {9081#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {9081#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,485 INFO L280 TraceCheckUtils]: 3: Hoare triple {9081#(= 1 ~waterLevel~0)} main_#t~ret23 := valid_product_#res;assume -2147483648 <= main_#t~ret23 && main_#t~ret23 <= 2147483647;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; {9081#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,485 INFO L280 TraceCheckUtils]: 4: Hoare triple {9081#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~3; {9081#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,486 INFO L280 TraceCheckUtils]: 5: Hoare triple {9081#(= 1 ~waterLevel~0)} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {9081#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,486 INFO L280 TraceCheckUtils]: 6: Hoare triple {9081#(= 1 ~waterLevel~0)} assume !false; {9081#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,487 INFO L280 TraceCheckUtils]: 7: Hoare triple {9081#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {9081#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,488 INFO L280 TraceCheckUtils]: 8: Hoare triple {9081#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {9081#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,488 INFO L280 TraceCheckUtils]: 9: Hoare triple {9081#(= 1 ~waterLevel~0)} assume 0 != test_~tmp~0; {9081#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,489 INFO L280 TraceCheckUtils]: 10: Hoare triple {9081#(= 1 ~waterLevel~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,490 INFO L280 TraceCheckUtils]: 11: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,490 INFO L280 TraceCheckUtils]: 12: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,491 INFO L280 TraceCheckUtils]: 13: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,491 INFO L280 TraceCheckUtils]: 14: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,492 INFO L280 TraceCheckUtils]: 15: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,492 INFO L280 TraceCheckUtils]: 16: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,493 INFO L280 TraceCheckUtils]: 17: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,494 INFO L280 TraceCheckUtils]: 18: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,495 INFO L280 TraceCheckUtils]: 19: Hoare triple {9082#(<= 2 ~waterLevel~0)} isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret22 && isHighWaterLevel_#t~ret22 <= 2147483647;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,496 INFO L280 TraceCheckUtils]: 20: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~1 := 1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,496 INFO L280 TraceCheckUtils]: 21: Hoare triple {9082#(<= 2 ~waterLevel~0)} isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,497 INFO L280 TraceCheckUtils]: 22: Hoare triple {9082#(<= 2 ~waterLevel~0)} processEnvironment_#t~ret4 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret4 && processEnvironment_#t~ret4 <= 2147483647;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,497 INFO L280 TraceCheckUtils]: 23: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume 0 != processEnvironment_~tmp~1;~pumpRunning~0 := 1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,498 INFO L280 TraceCheckUtils]: 24: Hoare triple {9082#(<= 2 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,499 INFO L280 TraceCheckUtils]: 25: Hoare triple {9082#(<= 2 ~waterLevel~0)} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,499 INFO L280 TraceCheckUtils]: 26: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,500 INFO L280 TraceCheckUtils]: 27: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !false; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,500 INFO L280 TraceCheckUtils]: 28: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,501 INFO L280 TraceCheckUtils]: 29: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,501 INFO L280 TraceCheckUtils]: 30: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp~0); {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,503 INFO L280 TraceCheckUtils]: 31: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,504 INFO L280 TraceCheckUtils]: 32: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,505 INFO L280 TraceCheckUtils]: 33: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,506 INFO L280 TraceCheckUtils]: 34: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,507 INFO L280 TraceCheckUtils]: 35: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume 0 != ~pumpRunning~0; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,511 INFO L280 TraceCheckUtils]: 36: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {9083#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,511 INFO L280 TraceCheckUtils]: 37: Hoare triple {9083#(<= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {9083#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,517 INFO L280 TraceCheckUtils]: 38: Hoare triple {9083#(<= 1 ~waterLevel~0)} assume !(0 == ~pumpRunning~0); {9083#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,520 INFO L280 TraceCheckUtils]: 39: Hoare triple {9083#(<= 1 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {9084#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:41,521 INFO L280 TraceCheckUtils]: 40: Hoare triple {9084#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {9085#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7)} is VALID [2020-07-28 19:03:41,521 INFO L280 TraceCheckUtils]: 41: Hoare triple {9085#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {9080#false} is VALID [2020-07-28 19:03:41,522 INFO L280 TraceCheckUtils]: 42: Hoare triple {9080#false} __utac_acc__Specification4_spec__1_#t~ret71 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {9080#false} is VALID [2020-07-28 19:03:41,522 INFO L280 TraceCheckUtils]: 43: Hoare triple {9080#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {9080#false} is VALID [2020-07-28 19:03:41,522 INFO L280 TraceCheckUtils]: 44: Hoare triple {9080#false} assume !false; {9080#false} is VALID [2020-07-28 19:03:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-28 19:03:41,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719831761] [2020-07-28 19:03:41,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591793587] [2020-07-28 19:03:41,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 19:03:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:41,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-28 19:03:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:41,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 19:03:41,870 INFO L280 TraceCheckUtils]: 0: Hoare triple {9079#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {9079#true} is VALID [2020-07-28 19:03:41,870 INFO L280 TraceCheckUtils]: 1: Hoare triple {9079#true} havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {9079#true} is VALID [2020-07-28 19:03:41,871 INFO L280 TraceCheckUtils]: 2: Hoare triple {9079#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {9079#true} is VALID [2020-07-28 19:03:41,871 INFO L280 TraceCheckUtils]: 3: Hoare triple {9079#true} main_#t~ret23 := valid_product_#res;assume -2147483648 <= main_#t~ret23 && main_#t~ret23 <= 2147483647;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; {9079#true} is VALID [2020-07-28 19:03:41,871 INFO L280 TraceCheckUtils]: 4: Hoare triple {9079#true} assume 0 != main_~tmp~3; {9079#true} is VALID [2020-07-28 19:03:41,871 INFO L280 TraceCheckUtils]: 5: Hoare triple {9079#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {9079#true} is VALID [2020-07-28 19:03:41,871 INFO L280 TraceCheckUtils]: 6: Hoare triple {9079#true} assume !false; {9079#true} is VALID [2020-07-28 19:03:41,872 INFO L280 TraceCheckUtils]: 7: Hoare triple {9079#true} assume test_~splverifierCounter~0 < 4; {9079#true} is VALID [2020-07-28 19:03:41,872 INFO L280 TraceCheckUtils]: 8: Hoare triple {9079#true} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {9079#true} is VALID [2020-07-28 19:03:41,872 INFO L280 TraceCheckUtils]: 9: Hoare triple {9079#true} assume 0 != test_~tmp~0; {9079#true} is VALID [2020-07-28 19:03:41,873 INFO L280 TraceCheckUtils]: 10: Hoare triple {9079#true} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {9079#true} is VALID [2020-07-28 19:03:41,873 INFO L280 TraceCheckUtils]: 11: Hoare triple {9079#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {9079#true} is VALID [2020-07-28 19:03:41,873 INFO L280 TraceCheckUtils]: 12: Hoare triple {9079#true} assume !(0 != test_~tmp___0~0); {9079#true} is VALID [2020-07-28 19:03:41,873 INFO L280 TraceCheckUtils]: 13: Hoare triple {9079#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {9079#true} is VALID [2020-07-28 19:03:41,874 INFO L280 TraceCheckUtils]: 14: Hoare triple {9079#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {9079#true} is VALID [2020-07-28 19:03:41,874 INFO L280 TraceCheckUtils]: 15: Hoare triple {9079#true} assume !(0 != ~pumpRunning~0); {9079#true} is VALID [2020-07-28 19:03:41,874 INFO L280 TraceCheckUtils]: 16: Hoare triple {9079#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {9079#true} is VALID [2020-07-28 19:03:41,878 INFO L280 TraceCheckUtils]: 17: Hoare triple {9079#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {9079#true} is VALID [2020-07-28 19:03:41,882 INFO L280 TraceCheckUtils]: 18: Hoare triple {9079#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,883 INFO L280 TraceCheckUtils]: 19: Hoare triple {9082#(<= 2 ~waterLevel~0)} isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret22 && isHighWaterLevel_#t~ret22 <= 2147483647;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,884 INFO L280 TraceCheckUtils]: 20: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~1 := 1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,884 INFO L280 TraceCheckUtils]: 21: Hoare triple {9082#(<= 2 ~waterLevel~0)} isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,885 INFO L280 TraceCheckUtils]: 22: Hoare triple {9082#(<= 2 ~waterLevel~0)} processEnvironment_#t~ret4 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret4 && processEnvironment_#t~ret4 <= 2147483647;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,885 INFO L280 TraceCheckUtils]: 23: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume 0 != processEnvironment_~tmp~1;~pumpRunning~0 := 1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,886 INFO L280 TraceCheckUtils]: 24: Hoare triple {9082#(<= 2 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,887 INFO L280 TraceCheckUtils]: 25: Hoare triple {9082#(<= 2 ~waterLevel~0)} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,887 INFO L280 TraceCheckUtils]: 26: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,888 INFO L280 TraceCheckUtils]: 27: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !false; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,888 INFO L280 TraceCheckUtils]: 28: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,889 INFO L280 TraceCheckUtils]: 29: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,890 INFO L280 TraceCheckUtils]: 30: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp~0); {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,890 INFO L280 TraceCheckUtils]: 31: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,891 INFO L280 TraceCheckUtils]: 32: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,892 INFO L280 TraceCheckUtils]: 33: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,893 INFO L280 TraceCheckUtils]: 34: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,893 INFO L280 TraceCheckUtils]: 35: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume 0 != ~pumpRunning~0; {9082#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,895 INFO L280 TraceCheckUtils]: 36: Hoare triple {9082#(<= 2 ~waterLevel~0)} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {9083#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,895 INFO L280 TraceCheckUtils]: 37: Hoare triple {9083#(<= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {9083#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,896 INFO L280 TraceCheckUtils]: 38: Hoare triple {9083#(<= 1 ~waterLevel~0)} assume !(0 == ~pumpRunning~0); {9083#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,897 INFO L280 TraceCheckUtils]: 39: Hoare triple {9083#(<= 1 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {9084#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:41,898 INFO L280 TraceCheckUtils]: 40: Hoare triple {9084#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret70 && __utac_acc__Specification4_spec__1_#t~ret70 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {9085#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7)} is VALID [2020-07-28 19:03:41,899 INFO L280 TraceCheckUtils]: 41: Hoare triple {9085#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {9080#false} is VALID [2020-07-28 19:03:41,899 INFO L280 TraceCheckUtils]: 42: Hoare triple {9080#false} __utac_acc__Specification4_spec__1_#t~ret71 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {9080#false} is VALID [2020-07-28 19:03:41,899 INFO L280 TraceCheckUtils]: 43: Hoare triple {9080#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {9080#false} is VALID [2020-07-28 19:03:41,900 INFO L280 TraceCheckUtils]: 44: Hoare triple {9080#false} assume !false; {9080#false} is VALID [2020-07-28 19:03:41,903 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:41,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-28 19:03:41,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-07-28 19:03:41,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110480854] [2020-07-28 19:03:41,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-07-28 19:03:41,907 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:41,907 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-28 19:03:42,003 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:42,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-28 19:03:42,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:42,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-28 19:03:42,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-28 19:03:42,003 INFO L87 Difference]: Start difference. First operand 236 states and 317 transitions. Second operand 7 states. [2020-07-28 19:03:44,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:44,211 INFO L93 Difference]: Finished difference Result 706 states and 973 transitions. [2020-07-28 19:03:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-28 19:03:44,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-07-28 19:03:44,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:44,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 19:03:44,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 278 transitions. [2020-07-28 19:03:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 19:03:44,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 278 transitions. [2020-07-28 19:03:44,220 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 278 transitions. [2020-07-28 19:03:44,527 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 278 edges. 278 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:44,550 INFO L225 Difference]: With dead ends: 706 [2020-07-28 19:03:44,550 INFO L226 Difference]: Without dead ends: 524 [2020-07-28 19:03:44,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-07-28 19:03:44,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-07-28 19:03:45,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 297. [2020-07-28 19:03:45,050 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:45,050 INFO L82 GeneralOperation]: Start isEquivalent. First operand 524 states. Second operand 297 states. [2020-07-28 19:03:45,050 INFO L74 IsIncluded]: Start isIncluded. First operand 524 states. Second operand 297 states. [2020-07-28 19:03:45,050 INFO L87 Difference]: Start difference. First operand 524 states. Second operand 297 states. [2020-07-28 19:03:45,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:45,072 INFO L93 Difference]: Finished difference Result 524 states and 704 transitions. [2020-07-28 19:03:45,072 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 704 transitions. [2020-07-28 19:03:45,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:45,074 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:45,074 INFO L74 IsIncluded]: Start isIncluded. First operand 297 states. Second operand 524 states. [2020-07-28 19:03:45,074 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 524 states. [2020-07-28 19:03:45,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:45,095 INFO L93 Difference]: Finished difference Result 524 states and 704 transitions. [2020-07-28 19:03:45,095 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 704 transitions. [2020-07-28 19:03:45,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:45,097 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:45,097 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:45,098 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:45,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-07-28 19:03:45,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 405 transitions. [2020-07-28 19:03:45,111 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 405 transitions. Word has length 45 [2020-07-28 19:03:45,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:45,111 INFO L479 AbstractCegarLoop]: Abstraction has 297 states and 405 transitions. [2020-07-28 19:03:45,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-28 19:03:45,112 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 405 transitions. [2020-07-28 19:03:45,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-28 19:03:45,113 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:45,114 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:45,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-07-28 19:03:45,329 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:45,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:45,329 INFO L82 PathProgramCache]: Analyzing trace with hash -594503994, now seen corresponding path program 2 times [2020-07-28 19:03:45,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:45,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551407711] [2020-07-28 19:03:45,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:03:45,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:03:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:03:45,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:03:45,546 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 19:03:45,546 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 19:03:45,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 19:03:45,745 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 19:03:45,745 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 19:03:45,746 WARN L170 areAnnotationChecker]: L420 has no Hoare annotation [2020-07-28 19:03:45,746 WARN L170 areAnnotationChecker]: L428 has no Hoare annotation [2020-07-28 19:03:45,746 WARN L170 areAnnotationChecker]: L384 has no Hoare annotation [2020-07-28 19:03:45,746 WARN L170 areAnnotationChecker]: L384 has no Hoare annotation [2020-07-28 19:03:45,746 WARN L170 areAnnotationChecker]: L358 has no Hoare annotation [2020-07-28 19:03:45,746 WARN L170 areAnnotationChecker]: L384-1 has no Hoare annotation [2020-07-28 19:03:45,747 WARN L170 areAnnotationChecker]: L911-1 has no Hoare annotation [2020-07-28 19:03:45,747 WARN L170 areAnnotationChecker]: L911-1 has no Hoare annotation [2020-07-28 19:03:45,747 WARN L170 areAnnotationChecker]: L911-1 has no Hoare annotation [2020-07-28 19:03:45,747 WARN L170 areAnnotationChecker]: L393 has no Hoare annotation [2020-07-28 19:03:45,747 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-28 19:03:45,747 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-28 19:03:45,748 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-28 19:03:45,748 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 19:03:45,748 WARN L170 areAnnotationChecker]: L131-1 has no Hoare annotation [2020-07-28 19:03:45,748 WARN L170 areAnnotationChecker]: L131-1 has no Hoare annotation [2020-07-28 19:03:45,748 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-28 19:03:45,748 WARN L170 areAnnotationChecker]: L815-3 has no Hoare annotation [2020-07-28 19:03:45,749 WARN L170 areAnnotationChecker]: L815-3 has no Hoare annotation [2020-07-28 19:03:45,749 WARN L170 areAnnotationChecker]: L131-2 has no Hoare annotation [2020-07-28 19:03:45,749 WARN L170 areAnnotationChecker]: L131-2 has no Hoare annotation [2020-07-28 19:03:45,749 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 19:03:45,749 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 19:03:45,750 WARN L170 areAnnotationChecker]: L163-1 has no Hoare annotation [2020-07-28 19:03:45,750 WARN L170 areAnnotationChecker]: L163-1 has no Hoare annotation [2020-07-28 19:03:45,750 WARN L170 areAnnotationChecker]: L138-1 has no Hoare annotation [2020-07-28 19:03:45,750 WARN L170 areAnnotationChecker]: L827 has no Hoare annotation [2020-07-28 19:03:45,750 WARN L170 areAnnotationChecker]: L827 has no Hoare annotation [2020-07-28 19:03:45,750 WARN L170 areAnnotationChecker]: L66-1 has no Hoare annotation [2020-07-28 19:03:45,751 WARN L170 areAnnotationChecker]: L892-1 has no Hoare annotation [2020-07-28 19:03:45,751 WARN L170 areAnnotationChecker]: L892-1 has no Hoare annotation [2020-07-28 19:03:45,751 WARN L170 areAnnotationChecker]: L884-1 has no Hoare annotation [2020-07-28 19:03:45,751 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-28 19:03:45,751 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-28 19:03:45,751 WARN L170 areAnnotationChecker]: L897-1 has no Hoare annotation [2020-07-28 19:03:45,751 WARN L170 areAnnotationChecker]: L911-2 has no Hoare annotation [2020-07-28 19:03:45,752 WARN L170 areAnnotationChecker]: L911-2 has no Hoare annotation [2020-07-28 19:03:45,752 WARN L170 areAnnotationChecker]: L839 has no Hoare annotation [2020-07-28 19:03:45,752 WARN L170 areAnnotationChecker]: L839 has no Hoare annotation [2020-07-28 19:03:45,752 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-28 19:03:45,752 WARN L170 areAnnotationChecker]: L265-3 has no Hoare annotation [2020-07-28 19:03:45,752 WARN L170 areAnnotationChecker]: L265-3 has no Hoare annotation [2020-07-28 19:03:45,753 WARN L170 areAnnotationChecker]: L216-1 has no Hoare annotation [2020-07-28 19:03:45,753 WARN L170 areAnnotationChecker]: L911-3 has no Hoare annotation [2020-07-28 19:03:45,753 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2020-07-28 19:03:45,753 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2020-07-28 19:03:45,753 WARN L170 areAnnotationChecker]: L265-5 has no Hoare annotation [2020-07-28 19:03:45,753 WARN L170 areAnnotationChecker]: L915-2 has no Hoare annotation [2020-07-28 19:03:45,754 WARN L170 areAnnotationChecker]: L915-2 has no Hoare annotation [2020-07-28 19:03:45,754 WARN L170 areAnnotationChecker]: L310-2 has no Hoare annotation [2020-07-28 19:03:45,754 WARN L170 areAnnotationChecker]: L310-2 has no Hoare annotation [2020-07-28 19:03:45,754 WARN L170 areAnnotationChecker]: L310-2 has no Hoare annotation [2020-07-28 19:03:45,754 WARN L170 areAnnotationChecker]: L94-1 has no Hoare annotation [2020-07-28 19:03:45,754 WARN L170 areAnnotationChecker]: L94-1 has no Hoare annotation [2020-07-28 19:03:45,754 WARN L170 areAnnotationChecker]: L94 has no Hoare annotation [2020-07-28 19:03:45,755 WARN L170 areAnnotationChecker]: L94 has no Hoare annotation [2020-07-28 19:03:45,755 WARN L170 areAnnotationChecker]: L271-1 has no Hoare annotation [2020-07-28 19:03:45,755 WARN L170 areAnnotationChecker]: L437-1 has no Hoare annotation [2020-07-28 19:03:45,755 WARN L170 areAnnotationChecker]: L437-1 has no Hoare annotation [2020-07-28 19:03:45,755 WARN L170 areAnnotationChecker]: L311 has no Hoare annotation [2020-07-28 19:03:45,755 WARN L170 areAnnotationChecker]: L815 has no Hoare annotation [2020-07-28 19:03:45,756 WARN L170 areAnnotationChecker]: L815 has no Hoare annotation [2020-07-28 19:03:45,756 WARN L170 areAnnotationChecker]: L131 has no Hoare annotation [2020-07-28 19:03:45,756 WARN L170 areAnnotationChecker]: L131 has no Hoare annotation [2020-07-28 19:03:45,756 WARN L170 areAnnotationChecker]: L279 has no Hoare annotation [2020-07-28 19:03:45,756 WARN L170 areAnnotationChecker]: L279 has no Hoare annotation [2020-07-28 19:03:45,756 WARN L170 areAnnotationChecker]: L167-1 has no Hoare annotation [2020-07-28 19:03:45,757 WARN L170 areAnnotationChecker]: L167-1 has no Hoare annotation [2020-07-28 19:03:45,757 WARN L170 areAnnotationChecker]: L314 has no Hoare annotation [2020-07-28 19:03:45,757 WARN L170 areAnnotationChecker]: L314 has no Hoare annotation [2020-07-28 19:03:45,757 WARN L170 areAnnotationChecker]: L163 has no Hoare annotation [2020-07-28 19:03:45,757 WARN L170 areAnnotationChecker]: L163 has no Hoare annotation [2020-07-28 19:03:45,757 WARN L170 areAnnotationChecker]: L138 has no Hoare annotation [2020-07-28 19:03:45,758 WARN L170 areAnnotationChecker]: L279-1 has no Hoare annotation [2020-07-28 19:03:45,758 WARN L170 areAnnotationChecker]: L314-1 has no Hoare annotation [2020-07-28 19:03:45,758 WARN L170 areAnnotationChecker]: L314-1 has no Hoare annotation [2020-07-28 19:03:45,758 WARN L170 areAnnotationChecker]: L892 has no Hoare annotation [2020-07-28 19:03:45,758 WARN L170 areAnnotationChecker]: L892 has no Hoare annotation [2020-07-28 19:03:45,758 WARN L170 areAnnotationChecker]: L884 has no Hoare annotation [2020-07-28 19:03:45,758 WARN L170 areAnnotationChecker]: L815-6 has no Hoare annotation [2020-07-28 19:03:45,759 WARN L170 areAnnotationChecker]: L815-6 has no Hoare annotation [2020-07-28 19:03:45,759 WARN L170 areAnnotationChecker]: L131-3 has no Hoare annotation [2020-07-28 19:03:45,759 WARN L170 areAnnotationChecker]: L131-3 has no Hoare annotation [2020-07-28 19:03:45,759 WARN L170 areAnnotationChecker]: L897 has no Hoare annotation [2020-07-28 19:03:45,759 WARN L170 areAnnotationChecker]: L911 has no Hoare annotation [2020-07-28 19:03:45,759 WARN L170 areAnnotationChecker]: L911 has no Hoare annotation [2020-07-28 19:03:45,760 WARN L170 areAnnotationChecker]: L163-2 has no Hoare annotation [2020-07-28 19:03:45,760 WARN L170 areAnnotationChecker]: L163-2 has no Hoare annotation [2020-07-28 19:03:45,760 WARN L170 areAnnotationChecker]: L138-2 has no Hoare annotation [2020-07-28 19:03:45,760 WARN L170 areAnnotationChecker]: L265 has no Hoare annotation [2020-07-28 19:03:45,760 WARN L170 areAnnotationChecker]: L265 has no Hoare annotation [2020-07-28 19:03:45,760 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2020-07-28 19:03:45,760 WARN L170 areAnnotationChecker]: L892-2 has no Hoare annotation [2020-07-28 19:03:45,761 WARN L170 areAnnotationChecker]: L892-2 has no Hoare annotation [2020-07-28 19:03:45,761 WARN L170 areAnnotationChecker]: L884-2 has no Hoare annotation [2020-07-28 19:03:45,761 WARN L170 areAnnotationChecker]: L265-2 has no Hoare annotation [2020-07-28 19:03:45,761 WARN L170 areAnnotationChecker]: L915 has no Hoare annotation [2020-07-28 19:03:45,761 WARN L170 areAnnotationChecker]: L915 has no Hoare annotation [2020-07-28 19:03:45,761 WARN L170 areAnnotationChecker]: L897-2 has no Hoare annotation [2020-07-28 19:03:45,761 WARN L170 areAnnotationChecker]: L911-4 has no Hoare annotation [2020-07-28 19:03:45,762 WARN L170 areAnnotationChecker]: L911-4 has no Hoare annotation [2020-07-28 19:03:45,762 WARN L170 areAnnotationChecker]: L271 has no Hoare annotation [2020-07-28 19:03:45,762 WARN L170 areAnnotationChecker]: L437 has no Hoare annotation [2020-07-28 19:03:45,762 WARN L170 areAnnotationChecker]: L437 has no Hoare annotation [2020-07-28 19:03:45,762 WARN L170 areAnnotationChecker]: L265-6 has no Hoare annotation [2020-07-28 19:03:45,762 WARN L170 areAnnotationChecker]: L265-6 has no Hoare annotation [2020-07-28 19:03:45,763 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2020-07-28 19:03:45,763 WARN L170 areAnnotationChecker]: L911-5 has no Hoare annotation [2020-07-28 19:03:45,763 WARN L170 areAnnotationChecker]: L167 has no Hoare annotation [2020-07-28 19:03:45,763 WARN L170 areAnnotationChecker]: L167 has no Hoare annotation [2020-07-28 19:03:45,763 WARN L170 areAnnotationChecker]: L265-8 has no Hoare annotation [2020-07-28 19:03:45,763 WARN L170 areAnnotationChecker]: L915-4 has no Hoare annotation [2020-07-28 19:03:45,764 WARN L170 areAnnotationChecker]: L915-4 has no Hoare annotation [2020-07-28 19:03:45,764 WARN L170 areAnnotationChecker]: L271-2 has no Hoare annotation [2020-07-28 19:03:45,764 WARN L170 areAnnotationChecker]: L437-2 has no Hoare annotation [2020-07-28 19:03:45,764 WARN L170 areAnnotationChecker]: L437-2 has no Hoare annotation [2020-07-28 19:03:45,764 WARN L170 areAnnotationChecker]: L167-2 has no Hoare annotation [2020-07-28 19:03:45,764 WARN L170 areAnnotationChecker]: L167-2 has no Hoare annotation [2020-07-28 19:03:45,765 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 19:03:45,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 07:03:45 BoogieIcfgContainer [2020-07-28 19:03:45,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 19:03:45,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 19:03:45,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 19:03:45,768 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 19:03:45,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:03:31" (3/4) ... [2020-07-28 19:03:45,771 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 19:03:45,956 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 19:03:45,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 19:03:45,959 INFO L168 Benchmark]: Toolchain (without parser) took 16716.41 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 384.8 MB). Free memory was 961.6 MB in the beginning and 1.2 GB in the end (delta: -217.0 MB). Peak memory consumption was 167.8 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:45,961 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 19:03:45,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -161.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:45,962 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.47 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:45,962 INFO L168 Benchmark]: Boogie Preprocessor took 63.01 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 19:03:45,962 INFO L168 Benchmark]: RCFGBuilder took 1386.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.2 MB in the end (delta: 146.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:45,963 INFO L168 Benchmark]: TraceAbstraction took 14340.31 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 250.1 MB). Free memory was 962.2 MB in the beginning and 1.2 GB in the end (delta: -271.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 19:03:45,963 INFO L168 Benchmark]: Witness Printer took 188.94 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.4 MB). Peak memory consumption was 55.4 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:45,966 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 0.72 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 620.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -161.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 106.47 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.01 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. * RCFGBuilder took 1386.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.2 MB in the end (delta: 146.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14340.31 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 250.1 MB). Free memory was 962.2 MB in the beginning and 1.2 GB in the end (delta: -271.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 188.94 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.4 MB). Peak memory consumption was 55.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 437]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L809] int waterLevel = 1; [L810] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L375] int retValue_acc ; [L376] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] int retValue_acc ; [L427] retValue_acc = 1 [L428] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] tmp = valid_product() [L384] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] COND TRUE waterLevel < 2 [L828] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND TRUE ! pumpRunning [L257] int retValue_acc ; [L258] int tmp ; [L259] int tmp___0 ; [L889] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] COND FALSE !(waterLevel < 2) [L896] retValue_acc = 0 [L897] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L263] tmp = isHighWaterSensorDry() [L265] COND FALSE !(\read(tmp)) [L268] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L270] retValue_acc = tmp___0 [L271] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] tmp = isHighWaterLevel() [L167] COND TRUE \read(tmp) [L188] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L131] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L131] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L163] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L909] tmp = getWaterLevel() [L911] COND TRUE tmp == 0 [L212] int retValue_acc ; [L215] retValue_acc = pumpRunning [L216] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L913] tmp___0 = isPumpRunning() [L915] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L437] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.0s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 712 SDtfs, 1089 SDslu, 1167 SDs, 0 SdLazy, 198 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=297occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 737 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 297 ConstructedInterpolants, 0 QuantifiedInterpolants, 19457 SizeOfPredicates, 4 NumberOfNonLiveVariables, 379 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 44/56 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...