./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product38.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_product38.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 764a558f84753bff2f3381f04a56ebf221297041 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:03:28,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 19:03:28,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 19:03:28,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 19:03:28,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 19:03:28,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 19:03:28,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 19:03:28,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 19:03:28,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 19:03:28,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 19:03:28,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 19:03:28,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 19:03:28,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 19:03:28,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 19:03:28,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 19:03:28,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 19:03:28,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 19:03:28,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 19:03:28,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 19:03:28,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 19:03:28,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 19:03:28,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 19:03:28,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 19:03:28,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 19:03:28,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 19:03:28,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 19:03:28,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 19:03:28,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 19:03:28,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 19:03:28,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 19:03:28,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 19:03:28,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 19:03:28,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 19:03:28,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 19:03:28,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 19:03:28,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 19:03:28,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 19:03:28,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 19:03:28,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 19:03:28,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 19:03:28,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 19:03:28,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 19:03:28,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 19:03:28,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 19:03:28,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 19:03:28,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 19:03:28,296 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 19:03:28,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 19:03:28,297 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 19:03:28,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 19:03:28,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 19:03:28,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 19:03:28,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 19:03:28,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 19:03:28,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 19:03:28,300 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 19:03:28,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 19:03:28,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 19:03:28,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 19:03:28,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 19:03:28,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 19:03:28,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 19:03:28,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 19:03:28,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 19:03:28,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 19:03:28,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 19:03:28,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 19:03:28,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 19:03:28,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 19:03:28,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 19:03:28,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 19:03:28,305 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 -> 764a558f84753bff2f3381f04a56ebf221297041 [2020-07-28 19:03:28,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 19:03:28,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 19:03:28,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 19:03:28,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 19:03:28,656 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 19:03:28,656 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2020-07-28 19:03:28,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf4647a4/a6aaf1c9d6a548acaf5a65175d925c0a/FLAG16faa62a3 [2020-07-28 19:03:29,333 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 19:03:29,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2020-07-28 19:03:29,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf4647a4/a6aaf1c9d6a548acaf5a65175d925c0a/FLAG16faa62a3 [2020-07-28 19:03:29,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf4647a4/a6aaf1c9d6a548acaf5a65175d925c0a [2020-07-28 19:03:29,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 19:03:29,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 19:03:29,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 19:03:29,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 19:03:29,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 19:03:29,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5b9704 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 19:03:29,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 19:03:29,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 19:03:30,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:03:30,105 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 19:03:30,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:03:30,303 INFO L208 MainTranslator]: Completed translation [2020-07-28 19:03:30,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30 WrapperNode [2020-07-28 19:03:30,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 19:03:30,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 19:03:30,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 19:03:30,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 19:03:30,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 19:03:30,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 19:03:30,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 19:03:30,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 19:03:30,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 19:03:30,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 19:03:30,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 19:03:30,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 19:03:30,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (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 19:03:30,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 19:03:30,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 19:03:30,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 19:03:30,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 19:03:32,288 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 19:03:32,289 INFO L295 CfgBuilder]: Removed 158 assume(true) statements. [2020-07-28 19:03:32,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:03:32 BoogieIcfgContainer [2020-07-28 19:03:32,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 19:03:32,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 19:03:32,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 19:03:32,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 19:03:32,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 07:03:29" (1/3) ... [2020-07-28 19:03:32,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a98281e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:03:32, skipping insertion in model container [2020-07-28 19:03:32,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (2/3) ... [2020-07-28 19:03:32,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a98281e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:03:32, skipping insertion in model container [2020-07-28 19:03:32,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:03:32" (3/3) ... [2020-07-28 19:03:32,311 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2020-07-28 19:03:32,323 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 19:03:32,334 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 19:03:32,349 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 19:03:32,387 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 19:03:32,388 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 19:03:32,388 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 19:03:32,388 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 19:03:32,388 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 19:03:32,389 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 19:03:32,389 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 19:03:32,389 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 19:03:32,423 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-07-28 19:03:32,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 19:03:32,432 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:32,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:32,434 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:32,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:32,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1529342393, now seen corresponding path program 1 times [2020-07-28 19:03:32,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:32,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983589499] [2020-07-28 19:03:32,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:32,797 INFO L280 TraceCheckUtils]: 0: Hoare triple {114#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {114#true} is VALID [2020-07-28 19:03:32,798 INFO L280 TraceCheckUtils]: 1: Hoare triple {114#true} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {114#true} is VALID [2020-07-28 19:03:32,799 INFO L280 TraceCheckUtils]: 2: Hoare triple {114#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {114#true} is VALID [2020-07-28 19:03:32,799 INFO L280 TraceCheckUtils]: 3: Hoare triple {114#true} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {114#true} is VALID [2020-07-28 19:03:32,799 INFO L280 TraceCheckUtils]: 4: Hoare triple {114#true} assume 0 != main_~tmp~0; {114#true} is VALID [2020-07-28 19:03:32,800 INFO L280 TraceCheckUtils]: 5: Hoare triple {114#true} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {114#true} is VALID [2020-07-28 19:03:32,801 INFO L280 TraceCheckUtils]: 6: Hoare triple {114#true} assume !true; {115#false} is VALID [2020-07-28 19:03:32,801 INFO L280 TraceCheckUtils]: 7: Hoare triple {115#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {115#false} is VALID [2020-07-28 19:03:32,802 INFO L280 TraceCheckUtils]: 8: Hoare triple {115#false} assume !(0 != ~pumpRunning~0); {115#false} is VALID [2020-07-28 19:03:32,802 INFO L280 TraceCheckUtils]: 9: Hoare triple {115#false} assume !(0 != ~systemActive~0); {115#false} is VALID [2020-07-28 19:03:32,803 INFO L280 TraceCheckUtils]: 10: Hoare triple {115#false} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {115#false} is VALID [2020-07-28 19:03:32,803 INFO L280 TraceCheckUtils]: 11: Hoare triple {115#false} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {115#false} is VALID [2020-07-28 19:03:32,805 INFO L280 TraceCheckUtils]: 12: Hoare triple {115#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {115#false} is VALID [2020-07-28 19:03:32,805 INFO L280 TraceCheckUtils]: 13: Hoare triple {115#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {115#false} is VALID [2020-07-28 19:03:32,805 INFO L280 TraceCheckUtils]: 14: Hoare triple {115#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {115#false} is VALID [2020-07-28 19:03:32,806 INFO L280 TraceCheckUtils]: 15: Hoare triple {115#false} assume !false; {115#false} is VALID [2020-07-28 19:03:32,810 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 19:03:32,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983589499] [2020-07-28 19:03:32,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:32,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:03:32,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504376361] [2020-07-28 19:03:32,821 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 19:03:32,823 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:32,827 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 19:03:32,878 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 19:03:32,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 19:03:32,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:32,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 19:03:32,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 19:03:32,892 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2020-07-28 19:03:33,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,193 INFO L93 Difference]: Finished difference Result 216 states and 329 transitions. [2020-07-28 19:03:33,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 19:03:33,193 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 19:03:33,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:33,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:03:33,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 329 transitions. [2020-07-28 19:03:33,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:03:33,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 329 transitions. [2020-07-28 19:03:33,217 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 329 transitions. [2020-07-28 19:03:33,627 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 329 edges. 329 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:33,643 INFO L225 Difference]: With dead ends: 216 [2020-07-28 19:03:33,643 INFO L226 Difference]: Without dead ends: 107 [2020-07-28 19:03:33,648 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 19:03:33,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-28 19:03:33,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-07-28 19:03:33,716 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:33,716 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 107 states. [2020-07-28 19:03:33,717 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 107 states. [2020-07-28 19:03:33,717 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 107 states. [2020-07-28 19:03:33,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,727 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-07-28 19:03:33,727 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-07-28 19:03:33,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:33,729 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:33,729 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 107 states. [2020-07-28 19:03:33,729 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 107 states. [2020-07-28 19:03:33,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,737 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-07-28 19:03:33,737 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-07-28 19:03:33,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:33,738 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:33,739 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:33,739 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-28 19:03:33,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-07-28 19:03:33,747 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 16 [2020-07-28 19:03:33,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:33,748 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-07-28 19:03:33,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 19:03:33,748 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-07-28 19:03:33,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 19:03:33,749 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:33,750 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 19:03:33,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 19:03:33,750 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:33,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:33,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1945506518, now seen corresponding path program 1 times [2020-07-28 19:03:33,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:33,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233808440] [2020-07-28 19:03:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:33,929 INFO L280 TraceCheckUtils]: 0: Hoare triple {779#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {779#true} is VALID [2020-07-28 19:03:33,929 INFO L280 TraceCheckUtils]: 1: Hoare triple {779#true} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {779#true} is VALID [2020-07-28 19:03:33,929 INFO L280 TraceCheckUtils]: 2: Hoare triple {779#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {779#true} is VALID [2020-07-28 19:03:33,930 INFO L280 TraceCheckUtils]: 3: Hoare triple {779#true} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {779#true} is VALID [2020-07-28 19:03:33,930 INFO L280 TraceCheckUtils]: 4: Hoare triple {779#true} assume 0 != main_~tmp~0; {779#true} is VALID [2020-07-28 19:03:33,931 INFO L280 TraceCheckUtils]: 5: Hoare triple {779#true} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {781#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:03:33,931 INFO L280 TraceCheckUtils]: 6: Hoare triple {781#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !false; {781#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:03:33,932 INFO L280 TraceCheckUtils]: 7: Hoare triple {781#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !(test_~splverifierCounter~0 < 4); {780#false} is VALID [2020-07-28 19:03:33,933 INFO L280 TraceCheckUtils]: 8: Hoare triple {780#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {780#false} is VALID [2020-07-28 19:03:33,933 INFO L280 TraceCheckUtils]: 9: Hoare triple {780#false} assume !(0 != ~pumpRunning~0); {780#false} is VALID [2020-07-28 19:03:33,933 INFO L280 TraceCheckUtils]: 10: Hoare triple {780#false} assume !(0 != ~systemActive~0); {780#false} is VALID [2020-07-28 19:03:33,933 INFO L280 TraceCheckUtils]: 11: Hoare triple {780#false} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {780#false} is VALID [2020-07-28 19:03:33,934 INFO L280 TraceCheckUtils]: 12: Hoare triple {780#false} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {780#false} is VALID [2020-07-28 19:03:33,934 INFO L280 TraceCheckUtils]: 13: Hoare triple {780#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {780#false} is VALID [2020-07-28 19:03:33,934 INFO L280 TraceCheckUtils]: 14: Hoare triple {780#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {780#false} is VALID [2020-07-28 19:03:33,935 INFO L280 TraceCheckUtils]: 15: Hoare triple {780#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {780#false} is VALID [2020-07-28 19:03:33,935 INFO L280 TraceCheckUtils]: 16: Hoare triple {780#false} assume !false; {780#false} is VALID [2020-07-28 19:03:33,936 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 19:03:33,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233808440] [2020-07-28 19:03:33,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:33,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:03:33,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752015693] [2020-07-28 19:03:33,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 19:03:33,940 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:33,940 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:03:33,965 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 19:03:33,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:03:33,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:33,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:03:33,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:33,967 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 3 states. [2020-07-28 19:03:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,188 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-07-28 19:03:34,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:03:34,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 19:03:34,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2020-07-28 19:03:34,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:34,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2020-07-28 19:03:34,196 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 156 transitions. [2020-07-28 19:03:34,392 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 156 edges. 156 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:34,394 INFO L225 Difference]: With dead ends: 107 [2020-07-28 19:03:34,394 INFO L226 Difference]: Without dead ends: 45 [2020-07-28 19:03:34,396 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 19:03:34,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-28 19:03:34,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-07-28 19:03:34,418 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:34,418 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,418 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,418 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,423 INFO L93 Difference]: Finished difference Result 45 states and 65 transitions. [2020-07-28 19:03:34,423 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-07-28 19:03:34,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:34,424 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:34,424 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,425 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,429 INFO L93 Difference]: Finished difference Result 45 states and 65 transitions. [2020-07-28 19:03:34,429 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-07-28 19:03:34,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:34,435 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:34,435 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:34,435 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:34,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-28 19:03:34,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2020-07-28 19:03:34,439 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 17 [2020-07-28 19:03:34,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:34,440 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2020-07-28 19:03:34,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:03:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-07-28 19:03:34,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 19:03:34,442 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:34,442 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 19:03:34,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 19:03:34,443 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:34,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:34,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1939738244, now seen corresponding path program 1 times [2020-07-28 19:03:34,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:34,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463023765] [2020-07-28 19:03:34,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:34,589 INFO L280 TraceCheckUtils]: 0: Hoare triple {1084#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {1084#true} is VALID [2020-07-28 19:03:34,589 INFO L280 TraceCheckUtils]: 1: Hoare triple {1084#true} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {1084#true} is VALID [2020-07-28 19:03:34,590 INFO L280 TraceCheckUtils]: 2: Hoare triple {1084#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {1086#(= 1 |ULTIMATE.start_valid_product_#res|)} is VALID [2020-07-28 19:03:34,592 INFO L280 TraceCheckUtils]: 3: Hoare triple {1086#(= 1 |ULTIMATE.start_valid_product_#res|)} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {1087#(= 1 ULTIMATE.start_main_~tmp~0)} is VALID [2020-07-28 19:03:34,592 INFO L280 TraceCheckUtils]: 4: Hoare triple {1087#(= 1 ULTIMATE.start_main_~tmp~0)} assume 0 != main_~tmp~0; {1084#true} is VALID [2020-07-28 19:03:34,592 INFO L280 TraceCheckUtils]: 5: Hoare triple {1084#true} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1084#true} is VALID [2020-07-28 19:03:34,592 INFO L280 TraceCheckUtils]: 6: Hoare triple {1084#true} assume !false; {1084#true} is VALID [2020-07-28 19:03:34,593 INFO L280 TraceCheckUtils]: 7: Hoare triple {1084#true} assume test_~splverifierCounter~0 < 4; {1084#true} is VALID [2020-07-28 19:03:34,593 INFO L280 TraceCheckUtils]: 8: Hoare triple {1084#true} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {1084#true} is VALID [2020-07-28 19:03:34,594 INFO L280 TraceCheckUtils]: 9: Hoare triple {1084#true} assume !(0 != test_~tmp~2); {1084#true} is VALID [2020-07-28 19:03:34,594 INFO L280 TraceCheckUtils]: 10: Hoare triple {1084#true} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {1084#true} is VALID [2020-07-28 19:03:34,594 INFO L280 TraceCheckUtils]: 11: Hoare triple {1084#true} assume !(0 != test_~tmp___0~1); {1084#true} is VALID [2020-07-28 19:03:34,595 INFO L280 TraceCheckUtils]: 12: Hoare triple {1084#true} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {1084#true} is VALID [2020-07-28 19:03:34,596 INFO L280 TraceCheckUtils]: 13: Hoare triple {1084#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1088#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 19:03:34,597 INFO L280 TraceCheckUtils]: 14: Hoare triple {1088#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {1088#(not (= 0 ~systemActive~0))} is VALID [2020-07-28 19:03:34,598 INFO L280 TraceCheckUtils]: 15: Hoare triple {1088#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {1085#false} is VALID [2020-07-28 19:03:34,598 INFO L280 TraceCheckUtils]: 16: Hoare triple {1085#false} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {1085#false} is VALID [2020-07-28 19:03:34,598 INFO L280 TraceCheckUtils]: 17: Hoare triple {1085#false} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {1085#false} is VALID [2020-07-28 19:03:34,599 INFO L280 TraceCheckUtils]: 18: Hoare triple {1085#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {1085#false} is VALID [2020-07-28 19:03:34,599 INFO L280 TraceCheckUtils]: 19: Hoare triple {1085#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {1085#false} is VALID [2020-07-28 19:03:34,599 INFO L280 TraceCheckUtils]: 20: Hoare triple {1085#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {1085#false} is VALID [2020-07-28 19:03:34,600 INFO L280 TraceCheckUtils]: 21: Hoare triple {1085#false} assume !false; {1085#false} is VALID [2020-07-28 19:03:34,602 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 19:03:34,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463023765] [2020-07-28 19:03:34,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:34,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:34,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436113159] [2020-07-28 19:03:34,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-07-28 19:03:34,605 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:34,605 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:03:34,634 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 19:03:34,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:03:34,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:34,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:03:34,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:34,635 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand 5 states. [2020-07-28 19:03:35,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,042 INFO L93 Difference]: Finished difference Result 84 states and 124 transitions. [2020-07-28 19:03:35,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 19:03:35,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-07-28 19:03:35,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:35,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:35,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2020-07-28 19:03:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:35,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2020-07-28 19:03:35,046 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 124 transitions. [2020-07-28 19:03:35,182 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:35,184 INFO L225 Difference]: With dead ends: 84 [2020-07-28 19:03:35,184 INFO L226 Difference]: Without dead ends: 45 [2020-07-28 19:03:35,184 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 19:03:35,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-28 19:03:35,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-07-28 19:03:35,227 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:35,227 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:35,227 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:35,227 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,230 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2020-07-28 19:03:35,230 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-07-28 19:03:35,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:35,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:35,231 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:35,231 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:35,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,233 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2020-07-28 19:03:35,234 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-07-28 19:03:35,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:35,234 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:35,234 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:35,234 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:35,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-28 19:03:35,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-07-28 19:03:35,237 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 22 [2020-07-28 19:03:35,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:35,237 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-07-28 19:03:35,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:03:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-07-28 19:03:35,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 19:03:35,238 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:35,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:35,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 19:03:35,239 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:35,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:35,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1547834963, now seen corresponding path program 1 times [2020-07-28 19:03:35,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:35,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232190049] [2020-07-28 19:03:35,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:35,325 INFO L280 TraceCheckUtils]: 0: Hoare triple {1363#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,326 INFO L280 TraceCheckUtils]: 1: Hoare triple {1365#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,327 INFO L280 TraceCheckUtils]: 2: Hoare triple {1365#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,328 INFO L280 TraceCheckUtils]: 3: Hoare triple {1365#(= 0 ~pumpRunning~0)} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,328 INFO L280 TraceCheckUtils]: 4: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~0; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,329 INFO L280 TraceCheckUtils]: 5: Hoare triple {1365#(= 0 ~pumpRunning~0)} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,330 INFO L280 TraceCheckUtils]: 6: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume !false; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,331 INFO L280 TraceCheckUtils]: 7: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,331 INFO L280 TraceCheckUtils]: 8: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,332 INFO L280 TraceCheckUtils]: 9: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~2); {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,333 INFO L280 TraceCheckUtils]: 10: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,334 INFO L280 TraceCheckUtils]: 11: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~1); {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,334 INFO L280 TraceCheckUtils]: 12: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,335 INFO L280 TraceCheckUtils]: 13: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,336 INFO L280 TraceCheckUtils]: 14: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,336 INFO L280 TraceCheckUtils]: 15: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,337 INFO L280 TraceCheckUtils]: 16: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {1365#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:35,338 INFO L280 TraceCheckUtils]: 17: Hoare triple {1365#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1364#false} is VALID [2020-07-28 19:03:35,338 INFO L280 TraceCheckUtils]: 18: Hoare triple {1364#false} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {1364#false} is VALID [2020-07-28 19:03:35,338 INFO L280 TraceCheckUtils]: 19: Hoare triple {1364#false} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {1364#false} is VALID [2020-07-28 19:03:35,339 INFO L280 TraceCheckUtils]: 20: Hoare triple {1364#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {1364#false} is VALID [2020-07-28 19:03:35,339 INFO L280 TraceCheckUtils]: 21: Hoare triple {1364#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {1364#false} is VALID [2020-07-28 19:03:35,339 INFO L280 TraceCheckUtils]: 22: Hoare triple {1364#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {1364#false} is VALID [2020-07-28 19:03:35,340 INFO L280 TraceCheckUtils]: 23: Hoare triple {1364#false} assume !false; {1364#false} is VALID [2020-07-28 19:03:35,341 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 19:03:35,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232190049] [2020-07-28 19:03:35,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:35,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:03:35,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557150511] [2020-07-28 19:03:35,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 19:03:35,343 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:35,343 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:03:35,396 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:35,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:03:35,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:35,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:03:35,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:35,398 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2020-07-28 19:03:35,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,625 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2020-07-28 19:03:35,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:03:35,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 19:03:35,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:35,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:35,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2020-07-28 19:03:35,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:35,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2020-07-28 19:03:35,632 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 152 transitions. [2020-07-28 19:03:35,845 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 152 edges. 152 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:35,847 INFO L225 Difference]: With dead ends: 105 [2020-07-28 19:03:35,848 INFO L226 Difference]: Without dead ends: 66 [2020-07-28 19:03:35,849 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 19:03:35,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-28 19:03:35,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-07-28 19:03:35,912 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:35,912 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states. Second operand 64 states. [2020-07-28 19:03:35,913 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 64 states. [2020-07-28 19:03:35,913 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 64 states. [2020-07-28 19:03:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,916 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2020-07-28 19:03:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2020-07-28 19:03:35,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:35,916 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:35,916 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 66 states. [2020-07-28 19:03:35,917 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 66 states. [2020-07-28 19:03:35,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,920 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2020-07-28 19:03:35,920 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2020-07-28 19:03:35,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:35,921 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:35,921 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:35,921 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-28 19:03:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2020-07-28 19:03:35,924 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 24 [2020-07-28 19:03:35,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:35,924 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2020-07-28 19:03:35,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:03:35,925 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2020-07-28 19:03:35,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-28 19:03:35,926 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:35,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:35,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 19:03:35,927 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:35,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:35,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1827782978, now seen corresponding path program 1 times [2020-07-28 19:03:35,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:35,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494657259] [2020-07-28 19:03:35,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:36,015 INFO L280 TraceCheckUtils]: 0: Hoare triple {1733#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {1733#true} is VALID [2020-07-28 19:03:36,015 INFO L280 TraceCheckUtils]: 1: Hoare triple {1733#true} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {1733#true} is VALID [2020-07-28 19:03:36,016 INFO L280 TraceCheckUtils]: 2: Hoare triple {1733#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {1733#true} is VALID [2020-07-28 19:03:36,016 INFO L280 TraceCheckUtils]: 3: Hoare triple {1733#true} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {1733#true} is VALID [2020-07-28 19:03:36,016 INFO L280 TraceCheckUtils]: 4: Hoare triple {1733#true} assume 0 != main_~tmp~0; {1733#true} is VALID [2020-07-28 19:03:36,017 INFO L280 TraceCheckUtils]: 5: Hoare triple {1733#true} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1733#true} is VALID [2020-07-28 19:03:36,017 INFO L280 TraceCheckUtils]: 6: Hoare triple {1733#true} assume !false; {1733#true} is VALID [2020-07-28 19:03:36,017 INFO L280 TraceCheckUtils]: 7: Hoare triple {1733#true} assume test_~splverifierCounter~0 < 4; {1733#true} is VALID [2020-07-28 19:03:36,018 INFO L280 TraceCheckUtils]: 8: Hoare triple {1733#true} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {1733#true} is VALID [2020-07-28 19:03:36,018 INFO L280 TraceCheckUtils]: 9: Hoare triple {1733#true} assume !(0 != test_~tmp~2); {1733#true} is VALID [2020-07-28 19:03:36,018 INFO L280 TraceCheckUtils]: 10: Hoare triple {1733#true} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {1733#true} is VALID [2020-07-28 19:03:36,018 INFO L280 TraceCheckUtils]: 11: Hoare triple {1733#true} assume !(0 != test_~tmp___0~1); {1733#true} is VALID [2020-07-28 19:03:36,019 INFO L280 TraceCheckUtils]: 12: Hoare triple {1733#true} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {1733#true} is VALID [2020-07-28 19:03:36,019 INFO L280 TraceCheckUtils]: 13: Hoare triple {1733#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1733#true} is VALID [2020-07-28 19:03:36,020 INFO L280 TraceCheckUtils]: 14: Hoare triple {1733#true} assume !(0 != ~pumpRunning~0); {1733#true} is VALID [2020-07-28 19:03:36,020 INFO L280 TraceCheckUtils]: 15: Hoare triple {1733#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {1733#true} is VALID [2020-07-28 19:03:36,020 INFO L280 TraceCheckUtils]: 16: Hoare triple {1733#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {1733#true} is VALID [2020-07-28 19:03:36,020 INFO L280 TraceCheckUtils]: 17: Hoare triple {1733#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; {1733#true} is VALID [2020-07-28 19:03:36,021 INFO L280 TraceCheckUtils]: 18: Hoare triple {1733#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; {1733#true} is VALID [2020-07-28 19:03:36,021 INFO L280 TraceCheckUtils]: 19: Hoare triple {1733#true} isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret36 && isHighWaterLevel_#t~ret36 <= 2147483647;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; {1733#true} is VALID [2020-07-28 19:03:36,022 INFO L280 TraceCheckUtils]: 20: Hoare triple {1733#true} assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; {1735#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~2)} is VALID [2020-07-28 19:03:36,023 INFO L280 TraceCheckUtils]: 21: Hoare triple {1735#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~2)} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {1736#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} is VALID [2020-07-28 19:03:36,024 INFO L280 TraceCheckUtils]: 22: Hoare triple {1736#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret17 && processEnvironment__wrappee__highWaterSensor_#t~ret17 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; {1737#(= 0 ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~3)} is VALID [2020-07-28 19:03:36,025 INFO L280 TraceCheckUtils]: 23: Hoare triple {1737#(= 0 ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~3)} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~3;~pumpRunning~0 := 1; {1734#false} is VALID [2020-07-28 19:03:36,025 INFO L280 TraceCheckUtils]: 24: Hoare triple {1734#false} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {1734#false} is VALID [2020-07-28 19:03:36,025 INFO L280 TraceCheckUtils]: 25: Hoare triple {1734#false} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {1734#false} is VALID [2020-07-28 19:03:36,026 INFO L280 TraceCheckUtils]: 26: Hoare triple {1734#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {1734#false} is VALID [2020-07-28 19:03:36,026 INFO L280 TraceCheckUtils]: 27: Hoare triple {1734#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {1734#false} is VALID [2020-07-28 19:03:36,027 INFO L280 TraceCheckUtils]: 28: Hoare triple {1734#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {1734#false} is VALID [2020-07-28 19:03:36,027 INFO L280 TraceCheckUtils]: 29: Hoare triple {1734#false} assume !false; {1734#false} is VALID [2020-07-28 19:03:36,028 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 19:03:36,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494657259] [2020-07-28 19:03:36,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:36,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:36,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667677240] [2020-07-28 19:03:36,030 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 19:03:36,030 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:36,030 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:03:36,066 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:36,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:03:36,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:36,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:03:36,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:36,067 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 5 states. [2020-07-28 19:03:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:36,803 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2020-07-28 19:03:36,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 19:03:36,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 19:03:36,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:36,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:36,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2020-07-28 19:03:36,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:36,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2020-07-28 19:03:36,810 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 185 transitions. [2020-07-28 19:03:37,057 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:37,059 INFO L225 Difference]: With dead ends: 171 [2020-07-28 19:03:37,059 INFO L226 Difference]: Without dead ends: 113 [2020-07-28 19:03:37,060 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 19:03:37,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-07-28 19:03:37,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 70. [2020-07-28 19:03:37,137 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:37,137 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 70 states. [2020-07-28 19:03:37,138 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 70 states. [2020-07-28 19:03:37,138 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 70 states. [2020-07-28 19:03:37,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:37,143 INFO L93 Difference]: Finished difference Result 113 states and 153 transitions. [2020-07-28 19:03:37,143 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 153 transitions. [2020-07-28 19:03:37,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:37,143 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:37,144 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 113 states. [2020-07-28 19:03:37,144 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 113 states. [2020-07-28 19:03:37,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:37,148 INFO L93 Difference]: Finished difference Result 113 states and 153 transitions. [2020-07-28 19:03:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 153 transitions. [2020-07-28 19:03:37,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:37,149 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:37,149 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:37,149 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:37,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-28 19:03:37,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2020-07-28 19:03:37,152 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 30 [2020-07-28 19:03:37,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:37,153 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2020-07-28 19:03:37,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:03:37,153 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2020-07-28 19:03:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-28 19:03:37,154 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:37,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:37,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 19:03:37,155 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:37,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:37,155 INFO L82 PathProgramCache]: Analyzing trace with hash 834728065, now seen corresponding path program 1 times [2020-07-28 19:03:37,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:37,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466776451] [2020-07-28 19:03:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:37,243 INFO L280 TraceCheckUtils]: 0: Hoare triple {2305#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,244 INFO L280 TraceCheckUtils]: 1: Hoare triple {2307#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,245 INFO L280 TraceCheckUtils]: 2: Hoare triple {2307#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,246 INFO L280 TraceCheckUtils]: 3: Hoare triple {2307#(= 1 ~waterLevel~0)} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,246 INFO L280 TraceCheckUtils]: 4: Hoare triple {2307#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~0; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,247 INFO L280 TraceCheckUtils]: 5: Hoare triple {2307#(= 1 ~waterLevel~0)} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,248 INFO L280 TraceCheckUtils]: 6: Hoare triple {2307#(= 1 ~waterLevel~0)} assume !false; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,248 INFO L280 TraceCheckUtils]: 7: Hoare triple {2307#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,249 INFO L280 TraceCheckUtils]: 8: Hoare triple {2307#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,250 INFO L280 TraceCheckUtils]: 9: Hoare triple {2307#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp~2); {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,250 INFO L280 TraceCheckUtils]: 10: Hoare triple {2307#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,252 INFO L280 TraceCheckUtils]: 11: Hoare triple {2307#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp___0~1); {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,266 INFO L280 TraceCheckUtils]: 12: Hoare triple {2307#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,272 INFO L280 TraceCheckUtils]: 13: Hoare triple {2307#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,273 INFO L280 TraceCheckUtils]: 14: Hoare triple {2307#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,275 INFO L280 TraceCheckUtils]: 15: Hoare triple {2307#(= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,278 INFO L280 TraceCheckUtils]: 16: Hoare triple {2307#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,284 INFO L280 TraceCheckUtils]: 17: Hoare triple {2307#(= 1 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,285 INFO L280 TraceCheckUtils]: 18: Hoare triple {2307#(= 1 ~waterLevel~0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,291 INFO L280 TraceCheckUtils]: 19: Hoare triple {2307#(= 1 ~waterLevel~0)} isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret36 && isHighWaterLevel_#t~ret36 <= 2147483647;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,292 INFO L280 TraceCheckUtils]: 20: Hoare triple {2307#(= 1 ~waterLevel~0)} assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,292 INFO L280 TraceCheckUtils]: 21: Hoare triple {2307#(= 1 ~waterLevel~0)} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,292 INFO L280 TraceCheckUtils]: 22: Hoare triple {2307#(= 1 ~waterLevel~0)} processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret17 && processEnvironment__wrappee__highWaterSensor_#t~ret17 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,293 INFO L280 TraceCheckUtils]: 23: Hoare triple {2307#(= 1 ~waterLevel~0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); {2307#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,293 INFO L280 TraceCheckUtils]: 24: Hoare triple {2307#(= 1 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {2308#(= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:37,294 INFO L280 TraceCheckUtils]: 25: Hoare triple {2308#(= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {2309#(= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1)} is VALID [2020-07-28 19:03:37,295 INFO L280 TraceCheckUtils]: 26: Hoare triple {2309#(= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {2306#false} is VALID [2020-07-28 19:03:37,295 INFO L280 TraceCheckUtils]: 27: Hoare triple {2306#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {2306#false} is VALID [2020-07-28 19:03:37,295 INFO L280 TraceCheckUtils]: 28: Hoare triple {2306#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {2306#false} is VALID [2020-07-28 19:03:37,295 INFO L280 TraceCheckUtils]: 29: Hoare triple {2306#false} assume !false; {2306#false} is VALID [2020-07-28 19:03:37,298 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 19:03:37,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466776451] [2020-07-28 19:03:37,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:37,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 19:03:37,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97365719] [2020-07-28 19:03:37,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 19:03:37,299 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:37,299 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:03:37,340 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:37,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:03:37,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:37,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:03:37,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:37,342 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 5 states. [2020-07-28 19:03:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:38,155 INFO L93 Difference]: Finished difference Result 247 states and 346 transitions. [2020-07-28 19:03:38,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 19:03:38,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 19:03:38,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 231 transitions. [2020-07-28 19:03:38,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:38,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 231 transitions. [2020-07-28 19:03:38,161 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 231 transitions. [2020-07-28 19:03:38,434 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 231 edges. 231 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:38,440 INFO L225 Difference]: With dead ends: 247 [2020-07-28 19:03:38,440 INFO L226 Difference]: Without dead ends: 183 [2020-07-28 19:03:38,441 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 19:03:38,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-07-28 19:03:38,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 113. [2020-07-28 19:03:38,635 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:38,635 INFO L82 GeneralOperation]: Start isEquivalent. First operand 183 states. Second operand 113 states. [2020-07-28 19:03:38,635 INFO L74 IsIncluded]: Start isIncluded. First operand 183 states. Second operand 113 states. [2020-07-28 19:03:38,635 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 113 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 183 states and 248 transitions. [2020-07-28 19:03:38,642 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 248 transitions. [2020-07-28 19:03:38,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:38,643 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:38,643 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 183 states. [2020-07-28 19:03:38,643 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 183 states. [2020-07-28 19:03:38,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:38,650 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2020-07-28 19:03:38,650 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 248 transitions. [2020-07-28 19:03:38,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:38,651 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:38,651 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:38,651 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-28 19:03:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 152 transitions. [2020-07-28 19:03:38,655 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 152 transitions. Word has length 30 [2020-07-28 19:03:38,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:38,655 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 152 transitions. [2020-07-28 19:03:38,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:03:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 152 transitions. [2020-07-28 19:03:38,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-28 19:03:38,659 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:38,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:38,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 19:03:38,660 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:38,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:38,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1173088129, now seen corresponding path program 1 times [2020-07-28 19:03:38,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:38,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564207469] [2020-07-28 19:03:38,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:38,799 INFO L280 TraceCheckUtils]: 0: Hoare triple {3182#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {3184#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,800 INFO L280 TraceCheckUtils]: 1: Hoare triple {3184#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {3184#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,801 INFO L280 TraceCheckUtils]: 2: Hoare triple {3184#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {3184#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,802 INFO L280 TraceCheckUtils]: 3: Hoare triple {3184#(= 1 ~waterLevel~0)} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {3184#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,802 INFO L280 TraceCheckUtils]: 4: Hoare triple {3184#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~0; {3184#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,803 INFO L280 TraceCheckUtils]: 5: Hoare triple {3184#(= 1 ~waterLevel~0)} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {3184#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,805 INFO L280 TraceCheckUtils]: 6: Hoare triple {3184#(= 1 ~waterLevel~0)} assume !false; {3184#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,806 INFO L280 TraceCheckUtils]: 7: Hoare triple {3184#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {3184#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,807 INFO L280 TraceCheckUtils]: 8: Hoare triple {3184#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {3184#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,808 INFO L280 TraceCheckUtils]: 9: Hoare triple {3184#(= 1 ~waterLevel~0)} assume 0 != test_~tmp~2; {3184#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,809 INFO L280 TraceCheckUtils]: 10: Hoare triple {3184#(= 1 ~waterLevel~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {3185#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,810 INFO L280 TraceCheckUtils]: 11: Hoare triple {3185#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {3185#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,811 INFO L280 TraceCheckUtils]: 12: Hoare triple {3185#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~1); {3185#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,812 INFO L280 TraceCheckUtils]: 13: Hoare triple {3185#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {3185#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,813 INFO L280 TraceCheckUtils]: 14: Hoare triple {3185#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {3185#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,813 INFO L280 TraceCheckUtils]: 15: Hoare triple {3185#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {3185#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,814 INFO L280 TraceCheckUtils]: 16: Hoare triple {3185#(<= 2 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {3185#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,815 INFO L280 TraceCheckUtils]: 17: Hoare triple {3185#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {3185#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,816 INFO L280 TraceCheckUtils]: 18: Hoare triple {3185#(<= 2 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; {3185#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:38,816 INFO L280 TraceCheckUtils]: 19: Hoare triple {3185#(<= 2 ~waterLevel~0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; {3183#false} is VALID [2020-07-28 19:03:38,817 INFO L280 TraceCheckUtils]: 20: Hoare triple {3183#false} isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret36 && isHighWaterLevel_#t~ret36 <= 2147483647;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; {3183#false} is VALID [2020-07-28 19:03:38,817 INFO L280 TraceCheckUtils]: 21: Hoare triple {3183#false} assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; {3183#false} is VALID [2020-07-28 19:03:38,817 INFO L280 TraceCheckUtils]: 22: Hoare triple {3183#false} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {3183#false} is VALID [2020-07-28 19:03:38,817 INFO L280 TraceCheckUtils]: 23: Hoare triple {3183#false} processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret17 && processEnvironment__wrappee__highWaterSensor_#t~ret17 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; {3183#false} is VALID [2020-07-28 19:03:38,818 INFO L280 TraceCheckUtils]: 24: Hoare triple {3183#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); {3183#false} is VALID [2020-07-28 19:03:38,818 INFO L280 TraceCheckUtils]: 25: Hoare triple {3183#false} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {3183#false} is VALID [2020-07-28 19:03:38,818 INFO L280 TraceCheckUtils]: 26: Hoare triple {3183#false} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {3183#false} is VALID [2020-07-28 19:03:38,819 INFO L280 TraceCheckUtils]: 27: Hoare triple {3183#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {3183#false} is VALID [2020-07-28 19:03:38,819 INFO L280 TraceCheckUtils]: 28: Hoare triple {3183#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {3183#false} is VALID [2020-07-28 19:03:38,820 INFO L280 TraceCheckUtils]: 29: Hoare triple {3183#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {3183#false} is VALID [2020-07-28 19:03:38,820 INFO L280 TraceCheckUtils]: 30: Hoare triple {3183#false} assume !false; {3183#false} is VALID [2020-07-28 19:03:38,823 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 19:03:38,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564207469] [2020-07-28 19:03:38,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:38,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:03:38,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085802577] [2020-07-28 19:03:38,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-07-28 19:03:38,826 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:38,828 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 19:03:38,872 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:38,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 19:03:38,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:38,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 19:03:38,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 19:03:38,874 INFO L87 Difference]: Start difference. First operand 113 states and 152 transitions. Second operand 4 states. [2020-07-28 19:03:39,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:39,539 INFO L93 Difference]: Finished difference Result 234 states and 321 transitions. [2020-07-28 19:03:39,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 19:03:39,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-07-28 19:03:39,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:39,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:03:39,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2020-07-28 19:03:39,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:03:39,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2020-07-28 19:03:39,545 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 201 transitions. [2020-07-28 19:03:39,787 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:39,790 INFO L225 Difference]: With dead ends: 234 [2020-07-28 19:03:39,791 INFO L226 Difference]: Without dead ends: 170 [2020-07-28 19:03:39,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 19:03:39,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-07-28 19:03:40,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2020-07-28 19:03:40,103 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:40,103 INFO L82 GeneralOperation]: Start isEquivalent. First operand 170 states. Second operand 167 states. [2020-07-28 19:03:40,103 INFO L74 IsIncluded]: Start isIncluded. First operand 170 states. Second operand 167 states. [2020-07-28 19:03:40,103 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 167 states. [2020-07-28 19:03:40,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:40,110 INFO L93 Difference]: Finished difference Result 170 states and 227 transitions. [2020-07-28 19:03:40,110 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 227 transitions. [2020-07-28 19:03:40,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:40,111 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:40,111 INFO L74 IsIncluded]: Start isIncluded. First operand 167 states. Second operand 170 states. [2020-07-28 19:03:40,111 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 170 states. [2020-07-28 19:03:40,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:40,117 INFO L93 Difference]: Finished difference Result 170 states and 227 transitions. [2020-07-28 19:03:40,117 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 227 transitions. [2020-07-28 19:03:40,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:40,118 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:40,118 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:40,118 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-28 19:03:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 225 transitions. [2020-07-28 19:03:40,124 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 225 transitions. Word has length 31 [2020-07-28 19:03:40,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:40,124 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 225 transitions. [2020-07-28 19:03:40,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 19:03:40,125 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 225 transitions. [2020-07-28 19:03:40,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-28 19:03:40,125 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:40,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:40,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 19:03:40,126 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:40,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:40,127 INFO L82 PathProgramCache]: Analyzing trace with hash -914922691, now seen corresponding path program 1 times [2020-07-28 19:03:40,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:40,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308707662] [2020-07-28 19:03:40,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:40,188 INFO L280 TraceCheckUtils]: 0: Hoare triple {4081#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {4081#true} is VALID [2020-07-28 19:03:40,189 INFO L280 TraceCheckUtils]: 1: Hoare triple {4081#true} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {4081#true} is VALID [2020-07-28 19:03:40,189 INFO L280 TraceCheckUtils]: 2: Hoare triple {4081#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {4081#true} is VALID [2020-07-28 19:03:40,189 INFO L280 TraceCheckUtils]: 3: Hoare triple {4081#true} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {4081#true} is VALID [2020-07-28 19:03:40,189 INFO L280 TraceCheckUtils]: 4: Hoare triple {4081#true} assume 0 != main_~tmp~0; {4081#true} is VALID [2020-07-28 19:03:40,190 INFO L280 TraceCheckUtils]: 5: Hoare triple {4081#true} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {4081#true} is VALID [2020-07-28 19:03:40,190 INFO L280 TraceCheckUtils]: 6: Hoare triple {4081#true} assume !false; {4081#true} is VALID [2020-07-28 19:03:40,190 INFO L280 TraceCheckUtils]: 7: Hoare triple {4081#true} assume test_~splverifierCounter~0 < 4; {4081#true} is VALID [2020-07-28 19:03:40,191 INFO L280 TraceCheckUtils]: 8: Hoare triple {4081#true} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {4081#true} is VALID [2020-07-28 19:03:40,191 INFO L280 TraceCheckUtils]: 9: Hoare triple {4081#true} assume 0 != test_~tmp~2; {4081#true} is VALID [2020-07-28 19:03:40,191 INFO L280 TraceCheckUtils]: 10: Hoare triple {4081#true} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {4081#true} is VALID [2020-07-28 19:03:40,191 INFO L280 TraceCheckUtils]: 11: Hoare triple {4081#true} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {4081#true} is VALID [2020-07-28 19:03:40,192 INFO L280 TraceCheckUtils]: 12: Hoare triple {4081#true} assume !(0 != test_~tmp___0~1); {4081#true} is VALID [2020-07-28 19:03:40,192 INFO L280 TraceCheckUtils]: 13: Hoare triple {4081#true} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {4081#true} is VALID [2020-07-28 19:03:40,192 INFO L280 TraceCheckUtils]: 14: Hoare triple {4081#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {4081#true} is VALID [2020-07-28 19:03:40,192 INFO L280 TraceCheckUtils]: 15: Hoare triple {4081#true} assume !(0 != ~pumpRunning~0); {4081#true} is VALID [2020-07-28 19:03:40,193 INFO L280 TraceCheckUtils]: 16: Hoare triple {4081#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {4081#true} is VALID [2020-07-28 19:03:40,193 INFO L280 TraceCheckUtils]: 17: Hoare triple {4081#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {4081#true} is VALID [2020-07-28 19:03:40,193 INFO L280 TraceCheckUtils]: 18: Hoare triple {4081#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; {4081#true} is VALID [2020-07-28 19:03:40,194 INFO L280 TraceCheckUtils]: 19: Hoare triple {4081#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~3 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; {4083#(= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|)} is VALID [2020-07-28 19:03:40,195 INFO L280 TraceCheckUtils]: 20: Hoare triple {4083#(= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|)} isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret36 && isHighWaterLevel_#t~ret36 <= 2147483647;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; {4084#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp~5)} is VALID [2020-07-28 19:03:40,196 INFO L280 TraceCheckUtils]: 21: Hoare triple {4084#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp~5)} assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; {4082#false} is VALID [2020-07-28 19:03:40,196 INFO L280 TraceCheckUtils]: 22: Hoare triple {4082#false} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {4082#false} is VALID [2020-07-28 19:03:40,196 INFO L280 TraceCheckUtils]: 23: Hoare triple {4082#false} processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret17 && processEnvironment__wrappee__highWaterSensor_#t~ret17 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; {4082#false} is VALID [2020-07-28 19:03:40,196 INFO L280 TraceCheckUtils]: 24: Hoare triple {4082#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); {4082#false} is VALID [2020-07-28 19:03:40,197 INFO L280 TraceCheckUtils]: 25: Hoare triple {4082#false} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {4082#false} is VALID [2020-07-28 19:03:40,197 INFO L280 TraceCheckUtils]: 26: Hoare triple {4082#false} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {4082#false} is VALID [2020-07-28 19:03:40,197 INFO L280 TraceCheckUtils]: 27: Hoare triple {4082#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {4082#false} is VALID [2020-07-28 19:03:40,198 INFO L280 TraceCheckUtils]: 28: Hoare triple {4082#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {4082#false} is VALID [2020-07-28 19:03:40,198 INFO L280 TraceCheckUtils]: 29: Hoare triple {4082#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {4082#false} is VALID [2020-07-28 19:03:40,198 INFO L280 TraceCheckUtils]: 30: Hoare triple {4082#false} assume !false; {4082#false} is VALID [2020-07-28 19:03:40,199 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 19:03:40,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308707662] [2020-07-28 19:03:40,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:40,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 19:03:40,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166552117] [2020-07-28 19:03:40,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-07-28 19:03:40,201 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:40,201 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 19:03:40,237 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:40,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 19:03:40,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:40,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 19:03:40,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 19:03:40,238 INFO L87 Difference]: Start difference. First operand 167 states and 225 transitions. Second operand 4 states. [2020-07-28 19:03:41,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:41,142 INFO L93 Difference]: Finished difference Result 394 states and 542 transitions. [2020-07-28 19:03:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 19:03:41,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-07-28 19:03:41,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:03:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2020-07-28 19:03:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:03:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2020-07-28 19:03:41,149 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 208 transitions. [2020-07-28 19:03:41,361 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:41,368 INFO L225 Difference]: With dead ends: 394 [2020-07-28 19:03:41,369 INFO L226 Difference]: Without dead ends: 275 [2020-07-28 19:03:41,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:41,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-07-28 19:03:41,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 161. [2020-07-28 19:03:41,670 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:41,670 INFO L82 GeneralOperation]: Start isEquivalent. First operand 275 states. Second operand 161 states. [2020-07-28 19:03:41,671 INFO L74 IsIncluded]: Start isIncluded. First operand 275 states. Second operand 161 states. [2020-07-28 19:03:41,671 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 161 states. [2020-07-28 19:03:41,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:41,692 INFO L93 Difference]: Finished difference Result 275 states and 376 transitions. [2020-07-28 19:03:41,692 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 376 transitions. [2020-07-28 19:03:41,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:41,694 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:41,694 INFO L74 IsIncluded]: Start isIncluded. First operand 161 states. Second operand 275 states. [2020-07-28 19:03:41,694 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 275 states. [2020-07-28 19:03:41,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:41,703 INFO L93 Difference]: Finished difference Result 275 states and 376 transitions. [2020-07-28 19:03:41,703 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 376 transitions. [2020-07-28 19:03:41,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:41,704 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:41,704 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:41,704 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:41,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-07-28 19:03:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 217 transitions. [2020-07-28 19:03:41,708 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 217 transitions. Word has length 31 [2020-07-28 19:03:41,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:41,709 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 217 transitions. [2020-07-28 19:03:41,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 19:03:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 217 transitions. [2020-07-28 19:03:41,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-28 19:03:41,710 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:41,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:41,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 19:03:41,711 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:41,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:41,711 INFO L82 PathProgramCache]: Analyzing trace with hash 324506552, now seen corresponding path program 1 times [2020-07-28 19:03:41,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:41,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823542381] [2020-07-28 19:03:41,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:41,853 INFO L280 TraceCheckUtils]: 0: Hoare triple {5408#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {5410#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,854 INFO L280 TraceCheckUtils]: 1: Hoare triple {5410#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {5410#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,855 INFO L280 TraceCheckUtils]: 2: Hoare triple {5410#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {5410#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,856 INFO L280 TraceCheckUtils]: 3: Hoare triple {5410#(= 1 ~waterLevel~0)} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {5410#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,865 INFO L280 TraceCheckUtils]: 4: Hoare triple {5410#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~0; {5410#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,866 INFO L280 TraceCheckUtils]: 5: Hoare triple {5410#(= 1 ~waterLevel~0)} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {5410#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,868 INFO L280 TraceCheckUtils]: 6: Hoare triple {5410#(= 1 ~waterLevel~0)} assume !false; {5410#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,869 INFO L280 TraceCheckUtils]: 7: Hoare triple {5410#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {5410#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,870 INFO L280 TraceCheckUtils]: 8: Hoare triple {5410#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {5410#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,871 INFO L280 TraceCheckUtils]: 9: Hoare triple {5410#(= 1 ~waterLevel~0)} assume 0 != test_~tmp~2; {5410#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,872 INFO L280 TraceCheckUtils]: 10: Hoare triple {5410#(= 1 ~waterLevel~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,873 INFO L280 TraceCheckUtils]: 11: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,874 INFO L280 TraceCheckUtils]: 12: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~1); {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,875 INFO L280 TraceCheckUtils]: 13: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,876 INFO L280 TraceCheckUtils]: 14: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,876 INFO L280 TraceCheckUtils]: 15: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,877 INFO L280 TraceCheckUtils]: 16: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,878 INFO L280 TraceCheckUtils]: 17: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,879 INFO L280 TraceCheckUtils]: 18: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,880 INFO L280 TraceCheckUtils]: 19: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~3 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,881 INFO L280 TraceCheckUtils]: 20: Hoare triple {5411#(<= 2 ~waterLevel~0)} isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret36 && isHighWaterLevel_#t~ret36 <= 2147483647;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,881 INFO L280 TraceCheckUtils]: 21: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume !(0 != isHighWaterLevel_~tmp~5);isHighWaterLevel_~tmp___0~2 := 1; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,882 INFO L280 TraceCheckUtils]: 22: Hoare triple {5411#(<= 2 ~waterLevel~0)} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,883 INFO L280 TraceCheckUtils]: 23: Hoare triple {5411#(<= 2 ~waterLevel~0)} processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret17 && processEnvironment__wrappee__highWaterSensor_#t~ret17 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,883 INFO L280 TraceCheckUtils]: 24: Hoare triple {5411#(<= 2 ~waterLevel~0)} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~3;~pumpRunning~0 := 1; {5411#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:41,884 INFO L280 TraceCheckUtils]: 25: Hoare triple {5411#(<= 2 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {5412#(<= 2 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:41,886 INFO L280 TraceCheckUtils]: 26: Hoare triple {5412#(<= 2 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {5413#(<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1)} is VALID [2020-07-28 19:03:41,887 INFO L280 TraceCheckUtils]: 27: Hoare triple {5413#(<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {5409#false} is VALID [2020-07-28 19:03:41,887 INFO L280 TraceCheckUtils]: 28: Hoare triple {5409#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {5409#false} is VALID [2020-07-28 19:03:41,887 INFO L280 TraceCheckUtils]: 29: Hoare triple {5409#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {5409#false} is VALID [2020-07-28 19:03:41,888 INFO L280 TraceCheckUtils]: 30: Hoare triple {5409#false} assume !false; {5409#false} is VALID [2020-07-28 19:03:41,891 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 19:03:41,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823542381] [2020-07-28 19:03:41,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:41,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:41,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937636597] [2020-07-28 19:03:41,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-07-28 19:03:41,894 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:41,894 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 19:03:41,941 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:41,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 19:03:41,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:41,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 19:03:41,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-28 19:03:41,942 INFO L87 Difference]: Start difference. First operand 161 states and 217 transitions. Second operand 6 states. [2020-07-28 19:03:43,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:43,208 INFO L93 Difference]: Finished difference Result 329 states and 446 transitions. [2020-07-28 19:03:43,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 19:03:43,209 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-07-28 19:03:43,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 19:03:43,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 251 transitions. [2020-07-28 19:03:43,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 19:03:43,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 251 transitions. [2020-07-28 19:03:43,214 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 251 transitions. [2020-07-28 19:03:43,480 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 251 edges. 251 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:43,486 INFO L225 Difference]: With dead ends: 329 [2020-07-28 19:03:43,486 INFO L226 Difference]: Without dead ends: 216 [2020-07-28 19:03:43,487 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 19:03:43,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-07-28 19:03:43,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 157. [2020-07-28 19:03:43,760 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:43,761 INFO L82 GeneralOperation]: Start isEquivalent. First operand 216 states. Second operand 157 states. [2020-07-28 19:03:43,761 INFO L74 IsIncluded]: Start isIncluded. First operand 216 states. Second operand 157 states. [2020-07-28 19:03:43,761 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 157 states. [2020-07-28 19:03:43,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:43,766 INFO L93 Difference]: Finished difference Result 216 states and 288 transitions. [2020-07-28 19:03:43,766 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 288 transitions. [2020-07-28 19:03:43,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:43,767 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:43,767 INFO L74 IsIncluded]: Start isIncluded. First operand 157 states. Second operand 216 states. [2020-07-28 19:03:43,767 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 216 states. [2020-07-28 19:03:43,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:43,773 INFO L93 Difference]: Finished difference Result 216 states and 288 transitions. [2020-07-28 19:03:43,773 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 288 transitions. [2020-07-28 19:03:43,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:43,774 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:43,774 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:43,774 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:43,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-07-28 19:03:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 209 transitions. [2020-07-28 19:03:43,778 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 209 transitions. Word has length 31 [2020-07-28 19:03:43,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:43,779 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 209 transitions. [2020-07-28 19:03:43,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 19:03:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 209 transitions. [2020-07-28 19:03:43,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-28 19:03:43,780 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:43,781 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, 1, 1, 1, 1] [2020-07-28 19:03:43,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 19:03:43,781 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:43,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:43,782 INFO L82 PathProgramCache]: Analyzing trace with hash 720082008, now seen corresponding path program 1 times [2020-07-28 19:03:43,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:43,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840579775] [2020-07-28 19:03:43,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:43,852 INFO L280 TraceCheckUtils]: 0: Hoare triple {6527#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {6527#true} is VALID [2020-07-28 19:03:43,853 INFO L280 TraceCheckUtils]: 1: Hoare triple {6527#true} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {6527#true} is VALID [2020-07-28 19:03:43,853 INFO L280 TraceCheckUtils]: 2: Hoare triple {6527#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {6527#true} is VALID [2020-07-28 19:03:43,853 INFO L280 TraceCheckUtils]: 3: Hoare triple {6527#true} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {6527#true} is VALID [2020-07-28 19:03:43,853 INFO L280 TraceCheckUtils]: 4: Hoare triple {6527#true} assume 0 != main_~tmp~0; {6527#true} is VALID [2020-07-28 19:03:43,854 INFO L280 TraceCheckUtils]: 5: Hoare triple {6527#true} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {6527#true} is VALID [2020-07-28 19:03:43,854 INFO L280 TraceCheckUtils]: 6: Hoare triple {6527#true} assume !false; {6527#true} is VALID [2020-07-28 19:03:43,855 INFO L280 TraceCheckUtils]: 7: Hoare triple {6527#true} assume test_~splverifierCounter~0 < 4; {6527#true} is VALID [2020-07-28 19:03:43,856 INFO L280 TraceCheckUtils]: 8: Hoare triple {6527#true} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {6527#true} is VALID [2020-07-28 19:03:43,856 INFO L280 TraceCheckUtils]: 9: Hoare triple {6527#true} assume !(0 != test_~tmp~2); {6527#true} is VALID [2020-07-28 19:03:43,856 INFO L280 TraceCheckUtils]: 10: Hoare triple {6527#true} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {6527#true} is VALID [2020-07-28 19:03:43,856 INFO L280 TraceCheckUtils]: 11: Hoare triple {6527#true} assume !(0 != test_~tmp___0~1); {6527#true} is VALID [2020-07-28 19:03:43,856 INFO L280 TraceCheckUtils]: 12: Hoare triple {6527#true} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {6527#true} is VALID [2020-07-28 19:03:43,857 INFO L280 TraceCheckUtils]: 13: Hoare triple {6527#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {6527#true} is VALID [2020-07-28 19:03:43,857 INFO L280 TraceCheckUtils]: 14: Hoare triple {6527#true} assume !(0 != ~pumpRunning~0); {6527#true} is VALID [2020-07-28 19:03:43,857 INFO L280 TraceCheckUtils]: 15: Hoare triple {6527#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {6527#true} is VALID [2020-07-28 19:03:43,857 INFO L280 TraceCheckUtils]: 16: Hoare triple {6527#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {6527#true} is VALID [2020-07-28 19:03:43,858 INFO L280 TraceCheckUtils]: 17: Hoare triple {6527#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; {6527#true} is VALID [2020-07-28 19:03:43,860 INFO L280 TraceCheckUtils]: 18: Hoare triple {6527#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; {6529#(= 1 |ULTIMATE.start_isHighWaterSensorDry_#res|)} is VALID [2020-07-28 19:03:43,862 INFO L280 TraceCheckUtils]: 19: Hoare triple {6529#(= 1 |ULTIMATE.start_isHighWaterSensorDry_#res|)} isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret36 && isHighWaterLevel_#t~ret36 <= 2147483647;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; {6530#(= 1 ULTIMATE.start_isHighWaterLevel_~tmp~5)} is VALID [2020-07-28 19:03:43,862 INFO L280 TraceCheckUtils]: 20: Hoare triple {6530#(= 1 ULTIMATE.start_isHighWaterLevel_~tmp~5)} assume !(0 != isHighWaterLevel_~tmp~5);isHighWaterLevel_~tmp___0~2 := 1; {6528#false} is VALID [2020-07-28 19:03:43,863 INFO L280 TraceCheckUtils]: 21: Hoare triple {6528#false} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {6528#false} is VALID [2020-07-28 19:03:43,863 INFO L280 TraceCheckUtils]: 22: Hoare triple {6528#false} processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret17 && processEnvironment__wrappee__highWaterSensor_#t~ret17 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; {6528#false} is VALID [2020-07-28 19:03:43,865 INFO L280 TraceCheckUtils]: 23: Hoare triple {6528#false} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~3;~pumpRunning~0 := 1; {6528#false} is VALID [2020-07-28 19:03:43,866 INFO L280 TraceCheckUtils]: 24: Hoare triple {6528#false} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {6528#false} is VALID [2020-07-28 19:03:43,866 INFO L280 TraceCheckUtils]: 25: Hoare triple {6528#false} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {6528#false} is VALID [2020-07-28 19:03:43,866 INFO L280 TraceCheckUtils]: 26: Hoare triple {6528#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); {6528#false} is VALID [2020-07-28 19:03:43,867 INFO L280 TraceCheckUtils]: 27: Hoare triple {6528#false} assume !false; {6528#false} is VALID [2020-07-28 19:03:43,867 INFO L280 TraceCheckUtils]: 28: Hoare triple {6528#false} assume test_~splverifierCounter~0 < 4; {6528#false} is VALID [2020-07-28 19:03:43,867 INFO L280 TraceCheckUtils]: 29: Hoare triple {6528#false} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {6528#false} is VALID [2020-07-28 19:03:43,867 INFO L280 TraceCheckUtils]: 30: Hoare triple {6528#false} assume !(0 != test_~tmp~2); {6528#false} is VALID [2020-07-28 19:03:43,867 INFO L280 TraceCheckUtils]: 31: Hoare triple {6528#false} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {6528#false} is VALID [2020-07-28 19:03:43,868 INFO L280 TraceCheckUtils]: 32: Hoare triple {6528#false} assume !(0 != test_~tmp___0~1); {6528#false} is VALID [2020-07-28 19:03:43,868 INFO L280 TraceCheckUtils]: 33: Hoare triple {6528#false} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {6528#false} is VALID [2020-07-28 19:03:43,870 INFO L280 TraceCheckUtils]: 34: Hoare triple {6528#false} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {6528#false} is VALID [2020-07-28 19:03:43,871 INFO L280 TraceCheckUtils]: 35: Hoare triple {6528#false} assume 0 != ~pumpRunning~0; {6528#false} is VALID [2020-07-28 19:03:43,871 INFO L280 TraceCheckUtils]: 36: Hoare triple {6528#false} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {6528#false} is VALID [2020-07-28 19:03:43,871 INFO L280 TraceCheckUtils]: 37: Hoare triple {6528#false} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {6528#false} is VALID [2020-07-28 19:03:43,871 INFO L280 TraceCheckUtils]: 38: Hoare triple {6528#false} assume 0 != ~pumpRunning~0;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret19, isMethaneAlarm_~retValue_acc~4;havoc isMethaneAlarm_~retValue_acc~4;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; {6528#false} is VALID [2020-07-28 19:03:43,871 INFO L280 TraceCheckUtils]: 39: Hoare triple {6528#false} isMethaneAlarm_#t~ret19 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret19 && isMethaneAlarm_#t~ret19 <= 2147483647;isMethaneAlarm_~retValue_acc~4 := isMethaneAlarm_#t~ret19;havoc isMethaneAlarm_#t~ret19;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~4; {6528#false} is VALID [2020-07-28 19:03:43,872 INFO L280 TraceCheckUtils]: 40: Hoare triple {6528#false} processEnvironment_#t~ret18 := isMethaneAlarm_#res;assume -2147483648 <= processEnvironment_#t~ret18 && processEnvironment_#t~ret18 <= 2147483647;processEnvironment_~tmp~4 := processEnvironment_#t~ret18;havoc processEnvironment_#t~ret18; {6528#false} is VALID [2020-07-28 19:03:43,872 INFO L280 TraceCheckUtils]: 41: Hoare triple {6528#false} assume 0 != processEnvironment_~tmp~4;~pumpRunning~0 := 0; {6528#false} is VALID [2020-07-28 19:03:43,872 INFO L280 TraceCheckUtils]: 42: Hoare triple {6528#false} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {6528#false} is VALID [2020-07-28 19:03:43,872 INFO L280 TraceCheckUtils]: 43: Hoare triple {6528#false} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {6528#false} is VALID [2020-07-28 19:03:43,873 INFO L280 TraceCheckUtils]: 44: Hoare triple {6528#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {6528#false} is VALID [2020-07-28 19:03:43,873 INFO L280 TraceCheckUtils]: 45: Hoare triple {6528#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {6528#false} is VALID [2020-07-28 19:03:43,873 INFO L280 TraceCheckUtils]: 46: Hoare triple {6528#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {6528#false} is VALID [2020-07-28 19:03:43,880 INFO L280 TraceCheckUtils]: 47: Hoare triple {6528#false} assume !false; {6528#false} is VALID [2020-07-28 19:03:43,882 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 19:03:43,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840579775] [2020-07-28 19:03:43,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:43,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 19:03:43,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662735312] [2020-07-28 19:03:43,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-07-28 19:03:43,883 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:43,884 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 19:03:43,943 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:43,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 19:03:43,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:43,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 19:03:43,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 19:03:43,944 INFO L87 Difference]: Start difference. First operand 157 states and 209 transitions. Second operand 4 states. [2020-07-28 19:03:44,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:44,834 INFO L93 Difference]: Finished difference Result 331 states and 442 transitions. [2020-07-28 19:03:44,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 19:03:44,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-07-28 19:03:44,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:44,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:03:44,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2020-07-28 19:03:44,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:03:44,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2020-07-28 19:03:44,841 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 159 transitions. [2020-07-28 19:03:45,024 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 159 edges. 159 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:45,028 INFO L225 Difference]: With dead ends: 331 [2020-07-28 19:03:45,028 INFO L226 Difference]: Without dead ends: 180 [2020-07-28 19:03:45,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:45,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-07-28 19:03:45,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 133. [2020-07-28 19:03:45,283 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:45,284 INFO L82 GeneralOperation]: Start isEquivalent. First operand 180 states. Second operand 133 states. [2020-07-28 19:03:45,284 INFO L74 IsIncluded]: Start isIncluded. First operand 180 states. Second operand 133 states. [2020-07-28 19:03:45,284 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 133 states. [2020-07-28 19:03:45,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:45,289 INFO L93 Difference]: Finished difference Result 180 states and 236 transitions. [2020-07-28 19:03:45,289 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 236 transitions. [2020-07-28 19:03:45,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:45,290 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:45,290 INFO L74 IsIncluded]: Start isIncluded. First operand 133 states. Second operand 180 states. [2020-07-28 19:03:45,290 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 180 states. [2020-07-28 19:03:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:45,294 INFO L93 Difference]: Finished difference Result 180 states and 236 transitions. [2020-07-28 19:03:45,294 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 236 transitions. [2020-07-28 19:03:45,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:45,295 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:45,295 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:45,295 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-28 19:03:45,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 173 transitions. [2020-07-28 19:03:45,299 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 173 transitions. Word has length 48 [2020-07-28 19:03:45,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:45,299 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 173 transitions. [2020-07-28 19:03:45,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 19:03:45,300 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 173 transitions. [2020-07-28 19:03:45,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-28 19:03:45,301 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:45,301 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, 1, 1, 1, 1] [2020-07-28 19:03:45,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 19:03:45,301 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:45,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:45,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1774800916, now seen corresponding path program 1 times [2020-07-28 19:03:45,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:45,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757759100] [2020-07-28 19:03:45,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:45,411 INFO L280 TraceCheckUtils]: 0: Hoare triple {7536#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,412 INFO L280 TraceCheckUtils]: 1: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,412 INFO L280 TraceCheckUtils]: 2: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,413 INFO L280 TraceCheckUtils]: 3: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,414 INFO L280 TraceCheckUtils]: 4: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume 0 != main_~tmp~0; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,414 INFO L280 TraceCheckUtils]: 5: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,415 INFO L280 TraceCheckUtils]: 6: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume !false; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,416 INFO L280 TraceCheckUtils]: 7: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume test_~splverifierCounter~0 < 4; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,416 INFO L280 TraceCheckUtils]: 8: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,417 INFO L280 TraceCheckUtils]: 9: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp~2; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,418 INFO L280 TraceCheckUtils]: 10: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,418 INFO L280 TraceCheckUtils]: 11: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,419 INFO L280 TraceCheckUtils]: 12: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp___0~1); {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,419 INFO L280 TraceCheckUtils]: 13: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,420 INFO L280 TraceCheckUtils]: 14: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,421 INFO L280 TraceCheckUtils]: 15: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,421 INFO L280 TraceCheckUtils]: 16: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,422 INFO L280 TraceCheckUtils]: 17: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,423 INFO L280 TraceCheckUtils]: 18: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,423 INFO L280 TraceCheckUtils]: 19: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~3 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,424 INFO L280 TraceCheckUtils]: 20: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret36 && isHighWaterLevel_#t~ret36 <= 2147483647;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,424 INFO L280 TraceCheckUtils]: 21: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume !(0 != isHighWaterLevel_~tmp~5);isHighWaterLevel_~tmp___0~2 := 1; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,425 INFO L280 TraceCheckUtils]: 22: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,426 INFO L280 TraceCheckUtils]: 23: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret17 && processEnvironment__wrappee__highWaterSensor_#t~ret17 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,426 INFO L280 TraceCheckUtils]: 24: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~3;~pumpRunning~0 := 1; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,427 INFO L280 TraceCheckUtils]: 25: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,428 INFO L280 TraceCheckUtils]: 26: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,428 INFO L280 TraceCheckUtils]: 27: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,429 INFO L280 TraceCheckUtils]: 28: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume !false; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,430 INFO L280 TraceCheckUtils]: 29: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume test_~splverifierCounter~0 < 4; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,433 INFO L280 TraceCheckUtils]: 30: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,433 INFO L280 TraceCheckUtils]: 31: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp~2); {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,434 INFO L280 TraceCheckUtils]: 32: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,435 INFO L280 TraceCheckUtils]: 33: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp___0~1); {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,435 INFO L280 TraceCheckUtils]: 34: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,436 INFO L280 TraceCheckUtils]: 35: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,437 INFO L280 TraceCheckUtils]: 36: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume 0 != ~pumpRunning~0; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,437 INFO L280 TraceCheckUtils]: 37: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,438 INFO L280 TraceCheckUtils]: 38: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {7538#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:03:45,439 INFO L280 TraceCheckUtils]: 39: Hoare triple {7538#(= 0 ~methaneLevelCritical~0)} assume 0 != ~pumpRunning~0;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret19, isMethaneAlarm_~retValue_acc~4;havoc isMethaneAlarm_~retValue_acc~4;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; {7539#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} is VALID [2020-07-28 19:03:45,440 INFO L280 TraceCheckUtils]: 40: Hoare triple {7539#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} isMethaneAlarm_#t~ret19 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret19 && isMethaneAlarm_#t~ret19 <= 2147483647;isMethaneAlarm_~retValue_acc~4 := isMethaneAlarm_#t~ret19;havoc isMethaneAlarm_#t~ret19;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~4; {7540#(= 0 |ULTIMATE.start_isMethaneAlarm_#res|)} is VALID [2020-07-28 19:03:45,440 INFO L280 TraceCheckUtils]: 41: Hoare triple {7540#(= 0 |ULTIMATE.start_isMethaneAlarm_#res|)} processEnvironment_#t~ret18 := isMethaneAlarm_#res;assume -2147483648 <= processEnvironment_#t~ret18 && processEnvironment_#t~ret18 <= 2147483647;processEnvironment_~tmp~4 := processEnvironment_#t~ret18;havoc processEnvironment_#t~ret18; {7541#(= 0 ULTIMATE.start_processEnvironment_~tmp~4)} is VALID [2020-07-28 19:03:45,441 INFO L280 TraceCheckUtils]: 42: Hoare triple {7541#(= 0 ULTIMATE.start_processEnvironment_~tmp~4)} assume 0 != processEnvironment_~tmp~4;~pumpRunning~0 := 0; {7537#false} is VALID [2020-07-28 19:03:45,441 INFO L280 TraceCheckUtils]: 43: Hoare triple {7537#false} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {7537#false} is VALID [2020-07-28 19:03:45,441 INFO L280 TraceCheckUtils]: 44: Hoare triple {7537#false} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {7537#false} is VALID [2020-07-28 19:03:45,442 INFO L280 TraceCheckUtils]: 45: Hoare triple {7537#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {7537#false} is VALID [2020-07-28 19:03:45,442 INFO L280 TraceCheckUtils]: 46: Hoare triple {7537#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {7537#false} is VALID [2020-07-28 19:03:45,442 INFO L280 TraceCheckUtils]: 47: Hoare triple {7537#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {7537#false} is VALID [2020-07-28 19:03:45,443 INFO L280 TraceCheckUtils]: 48: Hoare triple {7537#false} assume !false; {7537#false} is VALID [2020-07-28 19:03:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-28 19:03:45,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757759100] [2020-07-28 19:03:45,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:45,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:45,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455508842] [2020-07-28 19:03:45,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-07-28 19:03:45,449 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:45,450 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 19:03:45,502 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:45,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 19:03:45,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:45,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 19:03:45,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-28 19:03:45,503 INFO L87 Difference]: Start difference. First operand 133 states and 173 transitions. Second operand 6 states. [2020-07-28 19:03:47,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:47,859 INFO L93 Difference]: Finished difference Result 675 states and 895 transitions. [2020-07-28 19:03:47,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-28 19:03:47,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-07-28 19:03:47,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:47,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 19:03:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 337 transitions. [2020-07-28 19:03:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 19:03:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 337 transitions. [2020-07-28 19:03:47,865 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 337 transitions. [2020-07-28 19:03:48,264 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 337 edges. 337 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:48,296 INFO L225 Difference]: With dead ends: 675 [2020-07-28 19:03:48,297 INFO L226 Difference]: Without dead ends: 548 [2020-07-28 19:03:48,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-28 19:03:48,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-28 19:03:48,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 258. [2020-07-28 19:03:48,969 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:48,970 INFO L82 GeneralOperation]: Start isEquivalent. First operand 548 states. Second operand 258 states. [2020-07-28 19:03:48,970 INFO L74 IsIncluded]: Start isIncluded. First operand 548 states. Second operand 258 states. [2020-07-28 19:03:48,970 INFO L87 Difference]: Start difference. First operand 548 states. Second operand 258 states. [2020-07-28 19:03:48,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:48,984 INFO L93 Difference]: Finished difference Result 548 states and 716 transitions. [2020-07-28 19:03:48,984 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 716 transitions. [2020-07-28 19:03:48,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:48,985 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:48,985 INFO L74 IsIncluded]: Start isIncluded. First operand 258 states. Second operand 548 states. [2020-07-28 19:03:48,992 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 548 states. [2020-07-28 19:03:49,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:49,005 INFO L93 Difference]: Finished difference Result 548 states and 716 transitions. [2020-07-28 19:03:49,005 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 716 transitions. [2020-07-28 19:03:49,006 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:49,007 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:49,007 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:49,007 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-07-28 19:03:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 333 transitions. [2020-07-28 19:03:49,012 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 333 transitions. Word has length 49 [2020-07-28 19:03:49,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:49,013 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 333 transitions. [2020-07-28 19:03:49,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 19:03:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 333 transitions. [2020-07-28 19:03:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-28 19:03:49,014 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:49,014 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, 1, 1, 1, 1, 1] [2020-07-28 19:03:49,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-28 19:03:49,015 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:49,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:49,015 INFO L82 PathProgramCache]: Analyzing trace with hash -337830252, now seen corresponding path program 1 times [2020-07-28 19:03:49,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:49,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592609918] [2020-07-28 19:03:49,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:49,125 INFO L280 TraceCheckUtils]: 0: Hoare triple {9949#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {9951#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,126 INFO L280 TraceCheckUtils]: 1: Hoare triple {9951#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {9951#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,127 INFO L280 TraceCheckUtils]: 2: Hoare triple {9951#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {9951#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,127 INFO L280 TraceCheckUtils]: 3: Hoare triple {9951#(= 1 ~waterLevel~0)} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {9951#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,128 INFO L280 TraceCheckUtils]: 4: Hoare triple {9951#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~0; {9951#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,129 INFO L280 TraceCheckUtils]: 5: Hoare triple {9951#(= 1 ~waterLevel~0)} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {9951#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,130 INFO L280 TraceCheckUtils]: 6: Hoare triple {9951#(= 1 ~waterLevel~0)} assume !false; {9951#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,130 INFO L280 TraceCheckUtils]: 7: Hoare triple {9951#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {9951#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,131 INFO L280 TraceCheckUtils]: 8: Hoare triple {9951#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {9951#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,132 INFO L280 TraceCheckUtils]: 9: Hoare triple {9951#(= 1 ~waterLevel~0)} assume 0 != test_~tmp~2; {9951#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,132 INFO L280 TraceCheckUtils]: 10: Hoare triple {9951#(= 1 ~waterLevel~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,133 INFO L280 TraceCheckUtils]: 11: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,134 INFO L280 TraceCheckUtils]: 12: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~1); {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,134 INFO L280 TraceCheckUtils]: 13: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,135 INFO L280 TraceCheckUtils]: 14: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,136 INFO L280 TraceCheckUtils]: 15: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,137 INFO L280 TraceCheckUtils]: 16: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,137 INFO L280 TraceCheckUtils]: 17: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,138 INFO L280 TraceCheckUtils]: 18: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,139 INFO L280 TraceCheckUtils]: 19: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~3 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,139 INFO L280 TraceCheckUtils]: 20: Hoare triple {9952#(<= 2 ~waterLevel~0)} isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret36 && isHighWaterLevel_#t~ret36 <= 2147483647;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,140 INFO L280 TraceCheckUtils]: 21: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 != isHighWaterLevel_~tmp~5);isHighWaterLevel_~tmp___0~2 := 1; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,140 INFO L280 TraceCheckUtils]: 22: Hoare triple {9952#(<= 2 ~waterLevel~0)} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,141 INFO L280 TraceCheckUtils]: 23: Hoare triple {9952#(<= 2 ~waterLevel~0)} processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret17 && processEnvironment__wrappee__highWaterSensor_#t~ret17 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,142 INFO L280 TraceCheckUtils]: 24: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~3;~pumpRunning~0 := 1; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,142 INFO L280 TraceCheckUtils]: 25: Hoare triple {9952#(<= 2 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,143 INFO L280 TraceCheckUtils]: 26: Hoare triple {9952#(<= 2 ~waterLevel~0)} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,144 INFO L280 TraceCheckUtils]: 27: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,145 INFO L280 TraceCheckUtils]: 28: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !false; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,145 INFO L280 TraceCheckUtils]: 29: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,146 INFO L280 TraceCheckUtils]: 30: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,147 INFO L280 TraceCheckUtils]: 31: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp~2); {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,147 INFO L280 TraceCheckUtils]: 32: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,148 INFO L280 TraceCheckUtils]: 33: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~1); {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,149 INFO L280 TraceCheckUtils]: 34: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,149 INFO L280 TraceCheckUtils]: 35: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,150 INFO L280 TraceCheckUtils]: 36: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume 0 != ~pumpRunning~0; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,151 INFO L280 TraceCheckUtils]: 37: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,151 INFO L280 TraceCheckUtils]: 38: Hoare triple {9953#(<= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,152 INFO L280 TraceCheckUtils]: 39: Hoare triple {9953#(<= 1 ~waterLevel~0)} assume 0 != ~pumpRunning~0;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret19, isMethaneAlarm_~retValue_acc~4;havoc isMethaneAlarm_~retValue_acc~4;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,153 INFO L280 TraceCheckUtils]: 40: Hoare triple {9953#(<= 1 ~waterLevel~0)} isMethaneAlarm_#t~ret19 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret19 && isMethaneAlarm_#t~ret19 <= 2147483647;isMethaneAlarm_~retValue_acc~4 := isMethaneAlarm_#t~ret19;havoc isMethaneAlarm_#t~ret19;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~4; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,153 INFO L280 TraceCheckUtils]: 41: Hoare triple {9953#(<= 1 ~waterLevel~0)} processEnvironment_#t~ret18 := isMethaneAlarm_#res;assume -2147483648 <= processEnvironment_#t~ret18 && processEnvironment_#t~ret18 <= 2147483647;processEnvironment_~tmp~4 := processEnvironment_#t~ret18;havoc processEnvironment_#t~ret18; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,154 INFO L280 TraceCheckUtils]: 42: Hoare triple {9953#(<= 1 ~waterLevel~0)} assume !(0 != processEnvironment_~tmp~4);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,155 INFO L280 TraceCheckUtils]: 43: Hoare triple {9953#(<= 1 ~waterLevel~0)} assume !(0 == ~pumpRunning~0); {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,155 INFO L280 TraceCheckUtils]: 44: Hoare triple {9953#(<= 1 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {9954#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:49,156 INFO L280 TraceCheckUtils]: 45: Hoare triple {9954#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {9955#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1)} is VALID [2020-07-28 19:03:49,157 INFO L280 TraceCheckUtils]: 46: Hoare triple {9955#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {9950#false} is VALID [2020-07-28 19:03:49,157 INFO L280 TraceCheckUtils]: 47: Hoare triple {9950#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {9950#false} is VALID [2020-07-28 19:03:49,157 INFO L280 TraceCheckUtils]: 48: Hoare triple {9950#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {9950#false} is VALID [2020-07-28 19:03:49,158 INFO L280 TraceCheckUtils]: 49: Hoare triple {9950#false} assume !false; {9950#false} is VALID [2020-07-28 19:03:49,161 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 19:03:49,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592609918] [2020-07-28 19:03:49,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916304676] [2020-07-28 19:03:49,162 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 19:03:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:49,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-28 19:03:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:49,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 19:03:49,607 INFO L280 TraceCheckUtils]: 0: Hoare triple {9949#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);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(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {9949#true} is VALID [2020-07-28 19:03:49,608 INFO L280 TraceCheckUtils]: 1: Hoare triple {9949#true} havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; {9949#true} is VALID [2020-07-28 19:03:49,608 INFO L280 TraceCheckUtils]: 2: Hoare triple {9949#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; {9949#true} is VALID [2020-07-28 19:03:49,608 INFO L280 TraceCheckUtils]: 3: Hoare triple {9949#true} main_#t~ret0 := valid_product_#res;assume -2147483648 <= main_#t~ret0 && main_#t~ret0 <= 2147483647;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; {9949#true} is VALID [2020-07-28 19:03:49,608 INFO L280 TraceCheckUtils]: 4: Hoare triple {9949#true} assume 0 != main_~tmp~0; {9949#true} is VALID [2020-07-28 19:03:49,608 INFO L280 TraceCheckUtils]: 5: Hoare triple {9949#true} havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {9949#true} is VALID [2020-07-28 19:03:49,609 INFO L280 TraceCheckUtils]: 6: Hoare triple {9949#true} assume !false; {9949#true} is VALID [2020-07-28 19:03:49,609 INFO L280 TraceCheckUtils]: 7: Hoare triple {9949#true} assume test_~splverifierCounter~0 < 4; {9949#true} is VALID [2020-07-28 19:03:49,609 INFO L280 TraceCheckUtils]: 8: Hoare triple {9949#true} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {9949#true} is VALID [2020-07-28 19:03:49,612 INFO L280 TraceCheckUtils]: 9: Hoare triple {9949#true} assume 0 != test_~tmp~2; {9949#true} is VALID [2020-07-28 19:03:49,613 INFO L280 TraceCheckUtils]: 10: Hoare triple {9949#true} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {9949#true} is VALID [2020-07-28 19:03:49,613 INFO L280 TraceCheckUtils]: 11: Hoare triple {9949#true} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {9949#true} is VALID [2020-07-28 19:03:49,613 INFO L280 TraceCheckUtils]: 12: Hoare triple {9949#true} assume !(0 != test_~tmp___0~1); {9949#true} is VALID [2020-07-28 19:03:49,614 INFO L280 TraceCheckUtils]: 13: Hoare triple {9949#true} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {9949#true} is VALID [2020-07-28 19:03:49,614 INFO L280 TraceCheckUtils]: 14: Hoare triple {9949#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {9949#true} is VALID [2020-07-28 19:03:49,614 INFO L280 TraceCheckUtils]: 15: Hoare triple {9949#true} assume !(0 != ~pumpRunning~0); {9949#true} is VALID [2020-07-28 19:03:49,614 INFO L280 TraceCheckUtils]: 16: Hoare triple {9949#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {9949#true} is VALID [2020-07-28 19:03:49,615 INFO L280 TraceCheckUtils]: 17: Hoare triple {9949#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {9949#true} is VALID [2020-07-28 19:03:49,615 INFO L280 TraceCheckUtils]: 18: Hoare triple {9949#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; {9949#true} is VALID [2020-07-28 19:03:49,623 INFO L280 TraceCheckUtils]: 19: Hoare triple {9949#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~3 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,624 INFO L280 TraceCheckUtils]: 20: Hoare triple {9952#(<= 2 ~waterLevel~0)} isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret36 && isHighWaterLevel_#t~ret36 <= 2147483647;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,625 INFO L280 TraceCheckUtils]: 21: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 != isHighWaterLevel_~tmp~5);isHighWaterLevel_~tmp___0~2 := 1; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,626 INFO L280 TraceCheckUtils]: 22: Hoare triple {9952#(<= 2 ~waterLevel~0)} isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,627 INFO L280 TraceCheckUtils]: 23: Hoare triple {9952#(<= 2 ~waterLevel~0)} processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret17 && processEnvironment__wrappee__highWaterSensor_#t~ret17 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,628 INFO L280 TraceCheckUtils]: 24: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~3;~pumpRunning~0 := 1; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,629 INFO L280 TraceCheckUtils]: 25: Hoare triple {9952#(<= 2 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,630 INFO L280 TraceCheckUtils]: 26: Hoare triple {9952#(<= 2 ~waterLevel~0)} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,631 INFO L280 TraceCheckUtils]: 27: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,631 INFO L280 TraceCheckUtils]: 28: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !false; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,634 INFO L280 TraceCheckUtils]: 29: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,635 INFO L280 TraceCheckUtils]: 30: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet13 && test_#t~nondet13 <= 2147483647;test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,636 INFO L280 TraceCheckUtils]: 31: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp~2); {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,636 INFO L280 TraceCheckUtils]: 32: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet14 && test_#t~nondet14 <= 2147483647;test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,637 INFO L280 TraceCheckUtils]: 33: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~1); {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,638 INFO L280 TraceCheckUtils]: 34: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet15 && test_#t~nondet15 <= 2147483647;test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,638 INFO L280 TraceCheckUtils]: 35: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,640 INFO L280 TraceCheckUtils]: 36: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume 0 != ~pumpRunning~0; {9952#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,641 INFO L280 TraceCheckUtils]: 37: Hoare triple {9952#(<= 2 ~waterLevel~0)} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,642 INFO L280 TraceCheckUtils]: 38: Hoare triple {9953#(<= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,643 INFO L280 TraceCheckUtils]: 39: Hoare triple {9953#(<= 1 ~waterLevel~0)} assume 0 != ~pumpRunning~0;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret19, isMethaneAlarm_~retValue_acc~4;havoc isMethaneAlarm_~retValue_acc~4;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,644 INFO L280 TraceCheckUtils]: 40: Hoare triple {9953#(<= 1 ~waterLevel~0)} isMethaneAlarm_#t~ret19 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret19 && isMethaneAlarm_#t~ret19 <= 2147483647;isMethaneAlarm_~retValue_acc~4 := isMethaneAlarm_#t~ret19;havoc isMethaneAlarm_#t~ret19;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~4; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,644 INFO L280 TraceCheckUtils]: 41: Hoare triple {9953#(<= 1 ~waterLevel~0)} processEnvironment_#t~ret18 := isMethaneAlarm_#res;assume -2147483648 <= processEnvironment_#t~ret18 && processEnvironment_#t~ret18 <= 2147483647;processEnvironment_~tmp~4 := processEnvironment_#t~ret18;havoc processEnvironment_#t~ret18; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,645 INFO L280 TraceCheckUtils]: 42: Hoare triple {9953#(<= 1 ~waterLevel~0)} assume !(0 != processEnvironment_~tmp~4);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,646 INFO L280 TraceCheckUtils]: 43: Hoare triple {9953#(<= 1 ~waterLevel~0)} assume !(0 == ~pumpRunning~0); {9953#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:49,646 INFO L280 TraceCheckUtils]: 44: Hoare triple {9953#(<= 1 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret11, __utac_acc__Specification4_spec__1_#t~ret12, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; {9954#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:49,647 INFO L280 TraceCheckUtils]: 45: Hoare triple {9954#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret11 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret11 && __utac_acc__Specification4_spec__1_#t~ret11 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret11;havoc __utac_acc__Specification4_spec__1_#t~ret11; {9955#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1)} is VALID [2020-07-28 19:03:49,652 INFO L280 TraceCheckUtils]: 46: Hoare triple {9955#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; {9950#false} is VALID [2020-07-28 19:03:49,652 INFO L280 TraceCheckUtils]: 47: Hoare triple {9950#false} __utac_acc__Specification4_spec__1_#t~ret12 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret12 && __utac_acc__Specification4_spec__1_#t~ret12 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~0 := __utac_acc__Specification4_spec__1_#t~ret12;havoc __utac_acc__Specification4_spec__1_#t~ret12; {9950#false} is VALID [2020-07-28 19:03:49,652 INFO L280 TraceCheckUtils]: 48: Hoare triple {9950#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~0; {9950#false} is VALID [2020-07-28 19:03:49,653 INFO L280 TraceCheckUtils]: 49: Hoare triple {9950#false} assume !false; {9950#false} is VALID [2020-07-28 19:03:49,657 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 19:03:49,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-28 19:03:49,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-07-28 19:03:49,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471601445] [2020-07-28 19:03:49,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2020-07-28 19:03:49,666 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:49,666 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-28 19:03:49,753 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:49,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-28 19:03:49,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:49,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-28 19:03:49,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-28 19:03:49,754 INFO L87 Difference]: Start difference. First operand 258 states and 333 transitions. Second operand 7 states. [2020-07-28 19:03:52,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:52,930 INFO L93 Difference]: Finished difference Result 814 states and 1069 transitions. [2020-07-28 19:03:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-28 19:03:52,931 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2020-07-28 19:03:52,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:52,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 19:03:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 333 transitions. [2020-07-28 19:03:52,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 19:03:52,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 333 transitions. [2020-07-28 19:03:52,940 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 333 transitions. [2020-07-28 19:03:53,398 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 333 edges. 333 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:53,424 INFO L225 Difference]: With dead ends: 814 [2020-07-28 19:03:53,424 INFO L226 Difference]: Without dead ends: 610 [2020-07-28 19:03:53,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 54 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 19:03:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-07-28 19:03:54,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 341. [2020-07-28 19:03:54,285 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:54,285 INFO L82 GeneralOperation]: Start isEquivalent. First operand 610 states. Second operand 341 states. [2020-07-28 19:03:54,286 INFO L74 IsIncluded]: Start isIncluded. First operand 610 states. Second operand 341 states. [2020-07-28 19:03:54,286 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 341 states. [2020-07-28 19:03:54,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:54,309 INFO L93 Difference]: Finished difference Result 610 states and 784 transitions. [2020-07-28 19:03:54,309 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 784 transitions. [2020-07-28 19:03:54,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:54,311 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:54,311 INFO L74 IsIncluded]: Start isIncluded. First operand 341 states. Second operand 610 states. [2020-07-28 19:03:54,312 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 610 states. [2020-07-28 19:03:54,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:54,336 INFO L93 Difference]: Finished difference Result 610 states and 784 transitions. [2020-07-28 19:03:54,337 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 784 transitions. [2020-07-28 19:03:54,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:54,339 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:54,339 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:54,339 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-07-28 19:03:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 446 transitions. [2020-07-28 19:03:54,353 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 446 transitions. Word has length 50 [2020-07-28 19:03:54,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:54,353 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 446 transitions. [2020-07-28 19:03:54,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-28 19:03:54,354 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 446 transitions. [2020-07-28 19:03:54,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-28 19:03:54,355 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:54,355 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-28 19:03:54,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-07-28 19:03:54,571 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:54,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:54,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1076130248, now seen corresponding path program 2 times [2020-07-28 19:03:54,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:54,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210356225] [2020-07-28 19:03:54,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:03:54,658 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:03:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:03:54,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:03:54,816 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 19:03:54,817 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 19:03:54,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-28 19:03:55,127 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 19:03:55,127 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 19:03:55,127 WARN L170 areAnnotationChecker]: L923 has no Hoare annotation [2020-07-28 19:03:55,127 WARN L170 areAnnotationChecker]: L931 has no Hoare annotation [2020-07-28 19:03:55,128 WARN L170 areAnnotationChecker]: L130 has no Hoare annotation [2020-07-28 19:03:55,128 WARN L170 areAnnotationChecker]: L130 has no Hoare annotation [2020-07-28 19:03:55,128 WARN L170 areAnnotationChecker]: L103 has no Hoare annotation [2020-07-28 19:03:55,128 WARN L170 areAnnotationChecker]: L130-1 has no Hoare annotation [2020-07-28 19:03:55,128 WARN L170 areAnnotationChecker]: L261-1 has no Hoare annotation [2020-07-28 19:03:55,128 WARN L170 areAnnotationChecker]: L261-1 has no Hoare annotation [2020-07-28 19:03:55,129 WARN L170 areAnnotationChecker]: L261-1 has no Hoare annotation [2020-07-28 19:03:55,129 WARN L170 areAnnotationChecker]: L139 has no Hoare annotation [2020-07-28 19:03:55,129 WARN L170 areAnnotationChecker]: L338 has no Hoare annotation [2020-07-28 19:03:55,129 WARN L170 areAnnotationChecker]: L291 has no Hoare annotation [2020-07-28 19:03:55,129 WARN L170 areAnnotationChecker]: L291 has no Hoare annotation [2020-07-28 19:03:55,129 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 19:03:55,130 WARN L170 areAnnotationChecker]: L356-1 has no Hoare annotation [2020-07-28 19:03:55,130 WARN L170 areAnnotationChecker]: L356-1 has no Hoare annotation [2020-07-28 19:03:55,130 WARN L170 areAnnotationChecker]: L292 has no Hoare annotation [2020-07-28 19:03:55,130 WARN L170 areAnnotationChecker]: L155-3 has no Hoare annotation [2020-07-28 19:03:55,131 WARN L170 areAnnotationChecker]: L155-3 has no Hoare annotation [2020-07-28 19:03:55,131 WARN L170 areAnnotationChecker]: L356-2 has no Hoare annotation [2020-07-28 19:03:55,131 WARN L170 areAnnotationChecker]: L356-2 has no Hoare annotation [2020-07-28 19:03:55,131 WARN L170 areAnnotationChecker]: L300 has no Hoare annotation [2020-07-28 19:03:55,131 WARN L170 areAnnotationChecker]: L300 has no Hoare annotation [2020-07-28 19:03:55,131 WARN L170 areAnnotationChecker]: L414-1 has no Hoare annotation [2020-07-28 19:03:55,132 WARN L170 areAnnotationChecker]: L414-1 has no Hoare annotation [2020-07-28 19:03:55,132 WARN L170 areAnnotationChecker]: L363-1 has no Hoare annotation [2020-07-28 19:03:55,132 WARN L170 areAnnotationChecker]: L167 has no Hoare annotation [2020-07-28 19:03:55,132 WARN L170 areAnnotationChecker]: L167 has no Hoare annotation [2020-07-28 19:03:55,132 WARN L170 areAnnotationChecker]: L300-1 has no Hoare annotation [2020-07-28 19:03:55,132 WARN L170 areAnnotationChecker]: L192-1 has no Hoare annotation [2020-07-28 19:03:55,132 WARN L170 areAnnotationChecker]: L388-3 has no Hoare annotation [2020-07-28 19:03:55,133 WARN L170 areAnnotationChecker]: L388-3 has no Hoare annotation [2020-07-28 19:03:55,133 WARN L170 areAnnotationChecker]: L224-1 has no Hoare annotation [2020-07-28 19:03:55,133 WARN L170 areAnnotationChecker]: L310 has no Hoare annotation [2020-07-28 19:03:55,133 WARN L170 areAnnotationChecker]: L310 has no Hoare annotation [2020-07-28 19:03:55,133 WARN L170 areAnnotationChecker]: L458-1 has no Hoare annotation [2020-07-28 19:03:55,133 WARN L170 areAnnotationChecker]: L232-3 has no Hoare annotation [2020-07-28 19:03:55,134 WARN L170 areAnnotationChecker]: L232-3 has no Hoare annotation [2020-07-28 19:03:55,134 WARN L170 areAnnotationChecker]: L261-2 has no Hoare annotation [2020-07-28 19:03:55,134 WARN L170 areAnnotationChecker]: L261-2 has no Hoare annotation [2020-07-28 19:03:55,134 WARN L170 areAnnotationChecker]: L179 has no Hoare annotation [2020-07-28 19:03:55,134 WARN L170 areAnnotationChecker]: L179 has no Hoare annotation [2020-07-28 19:03:55,134 WARN L170 areAnnotationChecker]: L310-1 has no Hoare annotation [2020-07-28 19:03:55,135 WARN L170 areAnnotationChecker]: L418-1 has no Hoare annotation [2020-07-28 19:03:55,135 WARN L170 areAnnotationChecker]: L418-1 has no Hoare annotation [2020-07-28 19:03:55,135 WARN L170 areAnnotationChecker]: L237-3 has no Hoare annotation [2020-07-28 19:03:55,135 WARN L170 areAnnotationChecker]: L467-1 has no Hoare annotation [2020-07-28 19:03:55,136 WARN L170 areAnnotationChecker]: L261-3 has no Hoare annotation [2020-07-28 19:03:55,136 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2020-07-28 19:03:55,136 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2020-07-28 19:03:55,137 WARN L170 areAnnotationChecker]: L388-2 has no Hoare annotation [2020-07-28 19:03:55,137 WARN L170 areAnnotationChecker]: L388-2 has no Hoare annotation [2020-07-28 19:03:55,137 WARN L170 areAnnotationChecker]: L516-9 has no Hoare annotation [2020-07-28 19:03:55,137 WARN L170 areAnnotationChecker]: L516-9 has no Hoare annotation [2020-07-28 19:03:55,137 WARN L170 areAnnotationChecker]: L265-2 has no Hoare annotation [2020-07-28 19:03:55,137 WARN L170 areAnnotationChecker]: L265-2 has no Hoare annotation [2020-07-28 19:03:55,138 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation [2020-07-28 19:03:55,138 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation [2020-07-28 19:03:55,138 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation [2020-07-28 19:03:55,138 WARN L170 areAnnotationChecker]: L328-2 has no Hoare annotation [2020-07-28 19:03:55,138 WARN L170 areAnnotationChecker]: L328-2 has no Hoare annotation [2020-07-28 19:03:55,138 WARN L170 areAnnotationChecker]: L328 has no Hoare annotation [2020-07-28 19:03:55,139 WARN L170 areAnnotationChecker]: L328 has no Hoare annotation [2020-07-28 19:03:55,139 WARN L170 areAnnotationChecker]: L232-2 has no Hoare annotation [2020-07-28 19:03:55,139 WARN L170 areAnnotationChecker]: L232-2 has no Hoare annotation [2020-07-28 19:03:55,139 WARN L170 areAnnotationChecker]: L516-11 has no Hoare annotation [2020-07-28 19:03:55,139 WARN L170 areAnnotationChecker]: L247-1 has no Hoare annotation [2020-07-28 19:03:55,140 WARN L170 areAnnotationChecker]: L247-1 has no Hoare annotation [2020-07-28 19:03:55,140 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-28 19:03:55,140 WARN L170 areAnnotationChecker]: L155 has no Hoare annotation [2020-07-28 19:03:55,140 WARN L170 areAnnotationChecker]: L155 has no Hoare annotation [2020-07-28 19:03:55,140 WARN L170 areAnnotationChecker]: L356 has no Hoare annotation [2020-07-28 19:03:55,140 WARN L170 areAnnotationChecker]: L356 has no Hoare annotation [2020-07-28 19:03:55,141 WARN L170 areAnnotationChecker]: L237-2 has no Hoare annotation [2020-07-28 19:03:55,141 WARN L170 areAnnotationChecker]: L522-3 has no Hoare annotation [2020-07-28 19:03:55,141 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2020-07-28 19:03:55,141 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2020-07-28 19:03:55,141 WARN L170 areAnnotationChecker]: L414 has no Hoare annotation [2020-07-28 19:03:55,141 WARN L170 areAnnotationChecker]: L414 has no Hoare annotation [2020-07-28 19:03:55,142 WARN L170 areAnnotationChecker]: L363 has no Hoare annotation [2020-07-28 19:03:55,142 WARN L170 areAnnotationChecker]: L516-6 has no Hoare annotation [2020-07-28 19:03:55,142 WARN L170 areAnnotationChecker]: L516-6 has no Hoare annotation [2020-07-28 19:03:55,142 WARN L170 areAnnotationChecker]: L392-3 has no Hoare annotation [2020-07-28 19:03:55,142 WARN L170 areAnnotationChecker]: L392-3 has no Hoare annotation [2020-07-28 19:03:55,143 WARN L170 areAnnotationChecker]: L56-1 has no Hoare annotation [2020-07-28 19:03:55,143 WARN L170 areAnnotationChecker]: L56-1 has no Hoare annotation [2020-07-28 19:03:55,143 WARN L170 areAnnotationChecker]: L192 has no Hoare annotation [2020-07-28 19:03:55,143 WARN L170 areAnnotationChecker]: L388-1 has no Hoare annotation [2020-07-28 19:03:55,143 WARN L170 areAnnotationChecker]: L388-1 has no Hoare annotation [2020-07-28 19:03:55,143 WARN L170 areAnnotationChecker]: L224 has no Hoare annotation [2020-07-28 19:03:55,144 WARN L170 areAnnotationChecker]: L516-8 has no Hoare annotation [2020-07-28 19:03:55,144 WARN L170 areAnnotationChecker]: L155-6 has no Hoare annotation [2020-07-28 19:03:55,144 WARN L170 areAnnotationChecker]: L155-6 has no Hoare annotation [2020-07-28 19:03:55,146 WARN L170 areAnnotationChecker]: L356-3 has no Hoare annotation [2020-07-28 19:03:55,146 WARN L170 areAnnotationChecker]: L356-3 has no Hoare annotation [2020-07-28 19:03:55,146 WARN L170 areAnnotationChecker]: L458 has no Hoare annotation [2020-07-28 19:03:55,146 WARN L170 areAnnotationChecker]: L232-1 has no Hoare annotation [2020-07-28 19:03:55,147 WARN L170 areAnnotationChecker]: L232-1 has no Hoare annotation [2020-07-28 19:03:55,147 WARN L170 areAnnotationChecker]: L261 has no Hoare annotation [2020-07-28 19:03:55,147 WARN L170 areAnnotationChecker]: L261 has no Hoare annotation [2020-07-28 19:03:55,147 WARN L170 areAnnotationChecker]: L522-2 has no Hoare annotation [2020-07-28 19:03:55,147 WARN L170 areAnnotationChecker]: L414-2 has no Hoare annotation [2020-07-28 19:03:55,147 WARN L170 areAnnotationChecker]: L414-2 has no Hoare annotation [2020-07-28 19:03:55,148 WARN L170 areAnnotationChecker]: L363-2 has no Hoare annotation [2020-07-28 19:03:55,148 WARN L170 areAnnotationChecker]: L418 has no Hoare annotation [2020-07-28 19:03:55,148 WARN L170 areAnnotationChecker]: L418 has no Hoare annotation [2020-07-28 19:03:55,148 WARN L170 areAnnotationChecker]: L237-1 has no Hoare annotation [2020-07-28 19:03:55,148 WARN L170 areAnnotationChecker]: L467 has no Hoare annotation [2020-07-28 19:03:55,148 WARN L170 areAnnotationChecker]: L392-2 has no Hoare annotation [2020-07-28 19:03:55,148 WARN L170 areAnnotationChecker]: L392-2 has no Hoare annotation [2020-07-28 19:03:55,149 WARN L170 areAnnotationChecker]: L192-2 has no Hoare annotation [2020-07-28 19:03:55,149 WARN L170 areAnnotationChecker]: L388-5 has no Hoare annotation [2020-07-28 19:03:55,149 WARN L170 areAnnotationChecker]: L388-5 has no Hoare annotation [2020-07-28 19:03:55,149 WARN L170 areAnnotationChecker]: L224-2 has no Hoare annotation [2020-07-28 19:03:55,149 WARN L170 areAnnotationChecker]: L388 has no Hoare annotation [2020-07-28 19:03:55,149 WARN L170 areAnnotationChecker]: L388 has no Hoare annotation [2020-07-28 19:03:55,150 WARN L170 areAnnotationChecker]: L516-3 has no Hoare annotation [2020-07-28 19:03:55,150 WARN L170 areAnnotationChecker]: L516-3 has no Hoare annotation [2020-07-28 19:03:55,150 WARN L170 areAnnotationChecker]: L265 has no Hoare annotation [2020-07-28 19:03:55,150 WARN L170 areAnnotationChecker]: L265 has no Hoare annotation [2020-07-28 19:03:55,150 WARN L170 areAnnotationChecker]: L458-2 has no Hoare annotation [2020-07-28 19:03:55,150 WARN L170 areAnnotationChecker]: L232-5 has no Hoare annotation [2020-07-28 19:03:55,151 WARN L170 areAnnotationChecker]: L232-5 has no Hoare annotation [2020-07-28 19:03:55,151 WARN L170 areAnnotationChecker]: L261-4 has no Hoare annotation [2020-07-28 19:03:55,151 WARN L170 areAnnotationChecker]: L261-4 has no Hoare annotation [2020-07-28 19:03:55,151 WARN L170 areAnnotationChecker]: L232 has no Hoare annotation [2020-07-28 19:03:55,151 WARN L170 areAnnotationChecker]: L232 has no Hoare annotation [2020-07-28 19:03:55,152 WARN L170 areAnnotationChecker]: L516-5 has no Hoare annotation [2020-07-28 19:03:55,152 WARN L170 areAnnotationChecker]: L247 has no Hoare annotation [2020-07-28 19:03:55,152 WARN L170 areAnnotationChecker]: L247 has no Hoare annotation [2020-07-28 19:03:55,152 WARN L170 areAnnotationChecker]: L418-2 has no Hoare annotation [2020-07-28 19:03:55,152 WARN L170 areAnnotationChecker]: L418-2 has no Hoare annotation [2020-07-28 19:03:55,152 WARN L170 areAnnotationChecker]: L237-5 has no Hoare annotation [2020-07-28 19:03:55,153 WARN L170 areAnnotationChecker]: L467-2 has no Hoare annotation [2020-07-28 19:03:55,153 WARN L170 areAnnotationChecker]: L261-5 has no Hoare annotation [2020-07-28 19:03:55,153 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2020-07-28 19:03:55,153 WARN L170 areAnnotationChecker]: L522-1 has no Hoare annotation [2020-07-28 19:03:55,153 WARN L170 areAnnotationChecker]: L388-4 has no Hoare annotation [2020-07-28 19:03:55,153 WARN L170 areAnnotationChecker]: L388-4 has no Hoare annotation [2020-07-28 19:03:55,154 WARN L170 areAnnotationChecker]: L516-15 has no Hoare annotation [2020-07-28 19:03:55,154 WARN L170 areAnnotationChecker]: L516-15 has no Hoare annotation [2020-07-28 19:03:55,154 WARN L170 areAnnotationChecker]: L265-4 has no Hoare annotation [2020-07-28 19:03:55,154 WARN L170 areAnnotationChecker]: L265-4 has no Hoare annotation [2020-07-28 19:03:55,154 WARN L170 areAnnotationChecker]: L516 has no Hoare annotation [2020-07-28 19:03:55,154 WARN L170 areAnnotationChecker]: L516 has no Hoare annotation [2020-07-28 19:03:55,155 WARN L170 areAnnotationChecker]: L392-1 has no Hoare annotation [2020-07-28 19:03:55,155 WARN L170 areAnnotationChecker]: L392-1 has no Hoare annotation [2020-07-28 19:03:55,155 WARN L170 areAnnotationChecker]: L232-4 has no Hoare annotation [2020-07-28 19:03:55,155 WARN L170 areAnnotationChecker]: L232-4 has no Hoare annotation [2020-07-28 19:03:55,155 WARN L170 areAnnotationChecker]: L516-17 has no Hoare annotation [2020-07-28 19:03:55,156 WARN L170 areAnnotationChecker]: L247-2 has no Hoare annotation [2020-07-28 19:03:55,156 WARN L170 areAnnotationChecker]: L247-2 has no Hoare annotation [2020-07-28 19:03:55,156 WARN L170 areAnnotationChecker]: L516-2 has no Hoare annotation [2020-07-28 19:03:55,156 WARN L170 areAnnotationChecker]: L237-4 has no Hoare annotation [2020-07-28 19:03:55,156 WARN L170 areAnnotationChecker]: L522-5 has no Hoare annotation [2020-07-28 19:03:55,157 WARN L170 areAnnotationChecker]: L522 has no Hoare annotation [2020-07-28 19:03:55,157 WARN L170 areAnnotationChecker]: L516-12 has no Hoare annotation [2020-07-28 19:03:55,157 WARN L170 areAnnotationChecker]: L516-12 has no Hoare annotation [2020-07-28 19:03:55,157 WARN L170 areAnnotationChecker]: L392-5 has no Hoare annotation [2020-07-28 19:03:55,157 WARN L170 areAnnotationChecker]: L392-5 has no Hoare annotation [2020-07-28 19:03:55,158 WARN L170 areAnnotationChecker]: L392 has no Hoare annotation [2020-07-28 19:03:55,158 WARN L170 areAnnotationChecker]: L392 has no Hoare annotation [2020-07-28 19:03:55,158 WARN L170 areAnnotationChecker]: L516-14 has no Hoare annotation [2020-07-28 19:03:55,158 WARN L170 areAnnotationChecker]: L522-4 has no Hoare annotation [2020-07-28 19:03:55,158 WARN L170 areAnnotationChecker]: L392-4 has no Hoare annotation [2020-07-28 19:03:55,159 WARN L170 areAnnotationChecker]: L392-4 has no Hoare annotation [2020-07-28 19:03:55,159 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 19:03:55,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 07:03:55 BoogieIcfgContainer [2020-07-28 19:03:55,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 19:03:55,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 19:03:55,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 19:03:55,166 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 19:03:55,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:03:32" (3/4) ... [2020-07-28 19:03:55,170 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 19:03:55,440 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 19:03:55,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 19:03:55,446 INFO L168 Benchmark]: Toolchain (without parser) took 25856.50 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 481.8 MB). Free memory was 958.9 MB in the beginning and 1.1 GB in the end (delta: -120.8 MB). Peak memory consumption was 361.0 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:55,447 INFO L168 Benchmark]: CDTParser took 0.21 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 19:03:55,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 958.9 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:55,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:55,448 INFO L168 Benchmark]: Boogie Preprocessor took 74.43 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 19:03:55,448 INFO L168 Benchmark]: RCFGBuilder took 1807.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 951.8 MB in the end (delta: 170.1 MB). Peak memory consumption was 170.1 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:55,449 INFO L168 Benchmark]: TraceAbstraction took 22867.25 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 334.5 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 143.3 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:55,449 INFO L168 Benchmark]: Witness Printer took 274.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:55,451 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 0.21 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 715.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 958.9 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 109.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.43 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 1807.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 951.8 MB in the end (delta: 170.1 MB). Peak memory consumption was 170.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22867.25 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 334.5 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 143.3 MB. Max. memory is 11.5 GB. * Witness Printer took 274.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 247]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L349] int pumpRunning = 0; [L350] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L281] int splverifierCounter ; [L282] int tmp ; [L283] int tmp___0 ; [L284] int tmp___1 ; [L285] int tmp___2 ; [L288] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L290] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L292] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L298] tmp = __VERIFIER_nondet_int() [L300] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] COND TRUE waterLevel < 2 [L168] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND TRUE \read(tmp___2) [L530] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L356] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L363] COND TRUE \read(systemActive) [L411] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L414] COND FALSE !(\read(pumpRunning)) [L385] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L388] COND TRUE ! pumpRunning [L508] int retValue_acc ; [L509] int tmp ; [L510] int tmp___0 ; [L229] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] COND FALSE !(waterLevel < 2) [L236] retValue_acc = 0 [L237] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L514] tmp = isHighWaterSensorDry() [L516] COND FALSE !(\read(tmp)) [L519] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L521] retValue_acc = tmp___0 [L522] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L390] tmp = isHighWaterLevel() [L392] COND TRUE \read(tmp) [L439] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L254] int tmp ; [L255] int tmp___0 ; [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L259] tmp = getWaterLevel() [L261] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L290] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L292] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND TRUE \read(tmp___2) [L530] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L356] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE waterLevel > 0 [L156] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L363] COND TRUE \read(systemActive) [L411] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L414] COND TRUE \read(pumpRunning) [L452] int retValue_acc ; [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(tmp)) [L385] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L388] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L254] int tmp ; [L255] int tmp___0 ; [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L259] tmp = getWaterLevel() [L261] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L290] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L292] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND TRUE \read(tmp___2) [L530] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L356] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L155] COND TRUE waterLevel > 0 [L156] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L363] COND TRUE \read(systemActive) [L411] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L414] COND TRUE \read(pumpRunning) [L452] int retValue_acc ; [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(tmp)) [L385] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L388] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L254] int tmp ; [L255] int tmp___0 ; [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L259] tmp = getWaterLevel() [L261] COND TRUE tmp == 0 [L463] int retValue_acc ; [L466] retValue_acc = pumpRunning [L467] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L263] tmp___0 = isPumpRunning() [L265] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L247] __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, 111 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.4s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1177 SDtfs, 1738 SDslu, 1884 SDs, 0 SdLazy, 307 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 897 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 498 NumberOfCodeBlocks, 498 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 416 ConstructedInterpolants, 0 QuantifiedInterpolants, 32140 SizeOfPredicates, 4 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 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...