./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product37.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 a4cdc62a5b5efdfba89a3280823bf73bd08d347a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:58:09,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:58:09,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:58:09,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:58:09,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:58:09,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:58:09,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:58:09,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:58:09,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:58:09,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:58:09,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:58:09,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:58:09,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:58:09,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:58:09,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:58:09,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:58:09,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:58:09,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:58:09,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:58:09,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:58:09,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:58:09,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:58:09,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:58:09,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:58:09,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:58:09,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:58:09,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:58:09,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:58:09,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:58:09,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:58:09,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:58:09,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:58:09,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:58:09,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:58:09,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:58:09,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:58:09,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:58:09,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:58:09,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:58:09,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:58:09,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:58:09,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:58:09,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:58:09,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:58:09,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:58:09,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:58:09,327 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:58:09,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:58:09,328 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:58:09,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:58:09,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:58:09,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:58:09,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:58:09,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:58:09,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:58:09,331 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:58:09,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:58:09,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:58:09,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:58:09,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:58:09,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:58:09,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:58:09,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:58:09,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:58:09,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:58:09,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:58:09,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:58:09,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:58:09,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:58:09,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:58:09,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:58:09,336 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 -> a4cdc62a5b5efdfba89a3280823bf73bd08d347a [2020-07-28 18:58:09,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:58:09,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:58:09,782 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:58:09,783 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:58:09,784 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:58:09,785 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2020-07-28 18:58:09,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b6ed0e0/72c80303215f4590acbcb644c9c3a002/FLAGf2d3876a9 [2020-07-28 18:58:10,410 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:58:10,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2020-07-28 18:58:10,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b6ed0e0/72c80303215f4590acbcb644c9c3a002/FLAGf2d3876a9 [2020-07-28 18:58:10,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b6ed0e0/72c80303215f4590acbcb644c9c3a002 [2020-07-28 18:58:10,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:58:10,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:58:10,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:58:10,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:58:10,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:58:10,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:58:10" (1/1) ... [2020-07-28 18:58:10,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8781850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:10, skipping insertion in model container [2020-07-28 18:58:10,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:58:10" (1/1) ... [2020-07-28 18:58:10,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:58:10,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:58:11,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:58:11,224 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:58:11,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:58:11,367 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:58:11,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11 WrapperNode [2020-07-28 18:58:11,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:58:11,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:58:11,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:58:11,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:58:11,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (1/1) ... [2020-07-28 18:58:11,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (1/1) ... [2020-07-28 18:58:11,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:58:11,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:58:11,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:58:11,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:58:11,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (1/1) ... [2020-07-28 18:58:11,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (1/1) ... [2020-07-28 18:58:11,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (1/1) ... [2020-07-28 18:58:11,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (1/1) ... [2020-07-28 18:58:11,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (1/1) ... [2020-07-28 18:58:11,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (1/1) ... [2020-07-28 18:58:11,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (1/1) ... [2020-07-28 18:58:11,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:58:11,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:58:11,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:58:11,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:58:11,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:58:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 18:58:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 18:58:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:58:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:58:13,191 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:58:13,192 INFO L295 CfgBuilder]: Removed 156 assume(true) statements. [2020-07-28 18:58:13,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:58:13 BoogieIcfgContainer [2020-07-28 18:58:13,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:58:13,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:58:13,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:58:13,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:58:13,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:58:10" (1/3) ... [2020-07-28 18:58:13,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3378ba35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:58:13, skipping insertion in model container [2020-07-28 18:58:13,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:58:11" (2/3) ... [2020-07-28 18:58:13,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3378ba35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:58:13, skipping insertion in model container [2020-07-28 18:58:13,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:58:13" (3/3) ... [2020-07-28 18:58:13,207 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-07-28 18:58:13,218 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:58:13,226 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 18:58:13,239 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 18:58:13,263 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:58:13,264 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:58:13,264 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:58:13,264 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:58:13,265 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:58:13,265 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:58:13,265 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:58:13,265 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:58:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-07-28 18:58:13,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 18:58:13,292 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:13,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:58:13,293 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:13,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:13,299 INFO L82 PathProgramCache]: Analyzing trace with hash 2109695399, now seen corresponding path program 1 times [2020-07-28 18:58:13,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:13,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960356180] [2020-07-28 18:58:13,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:13,604 INFO L280 TraceCheckUtils]: 0: Hoare triple {114#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {114#true} is VALID [2020-07-28 18:58:13,605 INFO L280 TraceCheckUtils]: 1: Hoare triple {114#true} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {114#true} is VALID [2020-07-28 18:58:13,605 INFO L280 TraceCheckUtils]: 2: Hoare triple {114#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {114#true} is VALID [2020-07-28 18:58:13,605 INFO L280 TraceCheckUtils]: 3: Hoare triple {114#true} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {114#true} is VALID [2020-07-28 18:58:13,606 INFO L280 TraceCheckUtils]: 4: Hoare triple {114#true} assume 0 != main_~tmp~3; {114#true} is VALID [2020-07-28 18:58:13,607 INFO L280 TraceCheckUtils]: 5: Hoare triple {114#true} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {114#true} is VALID [2020-07-28 18:58:13,610 INFO L280 TraceCheckUtils]: 6: Hoare triple {114#true} assume !true; {115#false} is VALID [2020-07-28 18:58:13,611 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 18:58:13,611 INFO L280 TraceCheckUtils]: 8: Hoare triple {115#false} assume !(0 != ~pumpRunning~0); {115#false} is VALID [2020-07-28 18:58:13,611 INFO L280 TraceCheckUtils]: 9: Hoare triple {115#false} assume !(0 != ~systemActive~0); {115#false} is VALID [2020-07-28 18:58:13,612 INFO L280 TraceCheckUtils]: 10: Hoare triple {115#false} havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {115#false} is VALID [2020-07-28 18:58:13,612 INFO L280 TraceCheckUtils]: 11: Hoare triple {115#false} __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret36 && __utac_acc__Specification1_spec__1_#t~ret36 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; {115#false} is VALID [2020-07-28 18:58:13,613 INFO L280 TraceCheckUtils]: 12: Hoare triple {115#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {115#false} is VALID [2020-07-28 18:58:13,613 INFO L280 TraceCheckUtils]: 13: Hoare triple {115#false} __utac_acc__Specification1_spec__1_#t~ret37 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret37 && __utac_acc__Specification1_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; {115#false} is VALID [2020-07-28 18:58:13,614 INFO L280 TraceCheckUtils]: 14: Hoare triple {115#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {115#false} is VALID [2020-07-28 18:58:13,614 INFO L280 TraceCheckUtils]: 15: Hoare triple {115#false} assume !false; {115#false} is VALID [2020-07-28 18:58:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:13,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960356180] [2020-07-28 18:58:13,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:13,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:58:13,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260167554] [2020-07-28 18:58:13,627 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 18:58:13,629 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:13,633 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 18:58:13,674 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:13,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 18:58:13,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:13,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 18:58:13,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:58:13,687 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2020-07-28 18:58:13,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:13,961 INFO L93 Difference]: Finished difference Result 216 states and 329 transitions. [2020-07-28 18:58:13,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 18:58:13,962 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 18:58:13,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:13,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:58:13,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 329 transitions. [2020-07-28 18:58:13,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:58:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 329 transitions. [2020-07-28 18:58:13,981 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 329 transitions. [2020-07-28 18:58:14,391 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 18:58:14,415 INFO L225 Difference]: With dead ends: 216 [2020-07-28 18:58:14,416 INFO L226 Difference]: Without dead ends: 107 [2020-07-28 18:58:14,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:58:14,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-28 18:58:14,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-07-28 18:58:14,482 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:14,483 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 107 states. [2020-07-28 18:58:14,484 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 107 states. [2020-07-28 18:58:14,484 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 107 states. [2020-07-28 18:58:14,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:14,493 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-07-28 18:58:14,493 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-07-28 18:58:14,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:14,495 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:14,495 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 107 states. [2020-07-28 18:58:14,496 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 107 states. [2020-07-28 18:58:14,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:14,503 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-07-28 18:58:14,503 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-07-28 18:58:14,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:14,505 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:14,506 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:14,506 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:14,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-28 18:58:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-07-28 18:58:14,515 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 16 [2020-07-28 18:58:14,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:14,515 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-07-28 18:58:14,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 18:58:14,516 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-07-28 18:58:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 18:58:14,517 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:14,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:58:14,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:58:14,519 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:14,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:14,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1093063509, now seen corresponding path program 1 times [2020-07-28 18:58:14,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:14,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947555098] [2020-07-28 18:58:14,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:14,684 INFO L280 TraceCheckUtils]: 0: Hoare triple {776#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {776#true} is VALID [2020-07-28 18:58:14,684 INFO L280 TraceCheckUtils]: 1: Hoare triple {776#true} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {776#true} is VALID [2020-07-28 18:58:14,684 INFO L280 TraceCheckUtils]: 2: Hoare triple {776#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {776#true} is VALID [2020-07-28 18:58:14,685 INFO L280 TraceCheckUtils]: 3: Hoare triple {776#true} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {776#true} is VALID [2020-07-28 18:58:14,686 INFO L280 TraceCheckUtils]: 4: Hoare triple {776#true} assume 0 != main_~tmp~3; {776#true} is VALID [2020-07-28 18:58:14,687 INFO L280 TraceCheckUtils]: 5: Hoare triple {776#true} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {778#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 18:58:14,688 INFO L280 TraceCheckUtils]: 6: Hoare triple {778#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !false; {778#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 18:58:14,689 INFO L280 TraceCheckUtils]: 7: Hoare triple {778#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !(test_~splverifierCounter~0 < 4); {777#false} is VALID [2020-07-28 18:58:14,689 INFO L280 TraceCheckUtils]: 8: Hoare triple {777#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {777#false} is VALID [2020-07-28 18:58:14,689 INFO L280 TraceCheckUtils]: 9: Hoare triple {777#false} assume !(0 != ~pumpRunning~0); {777#false} is VALID [2020-07-28 18:58:14,689 INFO L280 TraceCheckUtils]: 10: Hoare triple {777#false} assume !(0 != ~systemActive~0); {777#false} is VALID [2020-07-28 18:58:14,690 INFO L280 TraceCheckUtils]: 11: Hoare triple {777#false} havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {777#false} is VALID [2020-07-28 18:58:14,690 INFO L280 TraceCheckUtils]: 12: Hoare triple {777#false} __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret36 && __utac_acc__Specification1_spec__1_#t~ret36 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; {777#false} is VALID [2020-07-28 18:58:14,691 INFO L280 TraceCheckUtils]: 13: Hoare triple {777#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {777#false} is VALID [2020-07-28 18:58:14,691 INFO L280 TraceCheckUtils]: 14: Hoare triple {777#false} __utac_acc__Specification1_spec__1_#t~ret37 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret37 && __utac_acc__Specification1_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; {777#false} is VALID [2020-07-28 18:58:14,691 INFO L280 TraceCheckUtils]: 15: Hoare triple {777#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {777#false} is VALID [2020-07-28 18:58:14,692 INFO L280 TraceCheckUtils]: 16: Hoare triple {777#false} assume !false; {777#false} is VALID [2020-07-28 18:58:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:14,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947555098] [2020-07-28 18:58:14,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:14,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 18:58:14,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392409510] [2020-07-28 18:58:14,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 18:58:14,697 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:14,697 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:58:14,725 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:14,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:58:14,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:14,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:58:14,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:14,726 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 3 states. [2020-07-28 18:58:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:14,938 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-07-28 18:58:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:58:14,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 18:58:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:14,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2020-07-28 18:58:14,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:14,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2020-07-28 18:58:14,945 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 156 transitions. [2020-07-28 18:58:15,135 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 18:58:15,137 INFO L225 Difference]: With dead ends: 107 [2020-07-28 18:58:15,137 INFO L226 Difference]: Without dead ends: 45 [2020-07-28 18:58:15,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:15,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-28 18:58:15,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-07-28 18:58:15,162 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:15,162 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 45 states. [2020-07-28 18:58:15,162 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 18:58:15,163 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 18:58:15,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:15,165 INFO L93 Difference]: Finished difference Result 45 states and 65 transitions. [2020-07-28 18:58:15,166 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-07-28 18:58:15,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:15,166 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:15,167 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 18:58:15,167 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 18:58:15,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:15,169 INFO L93 Difference]: Finished difference Result 45 states and 65 transitions. [2020-07-28 18:58:15,169 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-07-28 18:58:15,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:15,170 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:15,170 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:15,170 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:15,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-28 18:58:15,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2020-07-28 18:58:15,172 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 17 [2020-07-28 18:58:15,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:15,173 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2020-07-28 18:58:15,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:58:15,173 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-07-28 18:58:15,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 18:58:15,174 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:15,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:58:15,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:58:15,175 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:15,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:15,175 INFO L82 PathProgramCache]: Analyzing trace with hash -720159228, now seen corresponding path program 1 times [2020-07-28 18:58:15,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:15,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328142953] [2020-07-28 18:58:15,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:15,268 INFO L280 TraceCheckUtils]: 0: Hoare triple {1079#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,269 INFO L280 TraceCheckUtils]: 1: Hoare triple {1081#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,269 INFO L280 TraceCheckUtils]: 2: Hoare triple {1081#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,270 INFO L280 TraceCheckUtils]: 3: Hoare triple {1081#(= 1 ~systemActive~0)} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,271 INFO L280 TraceCheckUtils]: 4: Hoare triple {1081#(= 1 ~systemActive~0)} assume 0 != main_~tmp~3; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,272 INFO L280 TraceCheckUtils]: 5: Hoare triple {1081#(= 1 ~systemActive~0)} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,272 INFO L280 TraceCheckUtils]: 6: Hoare triple {1081#(= 1 ~systemActive~0)} assume !false; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,273 INFO L280 TraceCheckUtils]: 7: Hoare triple {1081#(= 1 ~systemActive~0)} assume test_~splverifierCounter~0 < 4; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,273 INFO L280 TraceCheckUtils]: 8: Hoare triple {1081#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet59 && test_#t~nondet59 <= 2147483647;test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,274 INFO L280 TraceCheckUtils]: 9: Hoare triple {1081#(= 1 ~systemActive~0)} assume !(0 != test_~tmp~8); {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,275 INFO L280 TraceCheckUtils]: 10: Hoare triple {1081#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet60 && test_#t~nondet60 <= 2147483647;test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,275 INFO L280 TraceCheckUtils]: 11: Hoare triple {1081#(= 1 ~systemActive~0)} assume !(0 != test_~tmp___0~2); {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,276 INFO L280 TraceCheckUtils]: 12: Hoare triple {1081#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet61 && test_#t~nondet61 <= 2147483647;test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,277 INFO L280 TraceCheckUtils]: 13: Hoare triple {1081#(= 1 ~systemActive~0)} assume 0 != test_~tmp___2~0; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,277 INFO L280 TraceCheckUtils]: 14: Hoare triple {1081#(= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:58:15,278 INFO L280 TraceCheckUtils]: 15: Hoare triple {1081#(= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {1080#false} is VALID [2020-07-28 18:58:15,278 INFO L280 TraceCheckUtils]: 16: Hoare triple {1080#false} havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {1080#false} is VALID [2020-07-28 18:58:15,279 INFO L280 TraceCheckUtils]: 17: Hoare triple {1080#false} __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret36 && __utac_acc__Specification1_spec__1_#t~ret36 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; {1080#false} is VALID [2020-07-28 18:58:15,279 INFO L280 TraceCheckUtils]: 18: Hoare triple {1080#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {1080#false} is VALID [2020-07-28 18:58:15,279 INFO L280 TraceCheckUtils]: 19: Hoare triple {1080#false} __utac_acc__Specification1_spec__1_#t~ret37 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret37 && __utac_acc__Specification1_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; {1080#false} is VALID [2020-07-28 18:58:15,280 INFO L280 TraceCheckUtils]: 20: Hoare triple {1080#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {1080#false} is VALID [2020-07-28 18:58:15,280 INFO L280 TraceCheckUtils]: 21: Hoare triple {1080#false} assume !false; {1080#false} is VALID [2020-07-28 18:58:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:15,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328142953] [2020-07-28 18:58:15,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:15,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:58:15,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497426957] [2020-07-28 18:58:15,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-28 18:58:15,283 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:15,283 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:58:15,326 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:15,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:58:15,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:15,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:58:15,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:15,327 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand 3 states. [2020-07-28 18:58:15,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:15,474 INFO L93 Difference]: Finished difference Result 84 states and 124 transitions. [2020-07-28 18:58:15,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:58:15,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-28 18:58:15,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:15,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:15,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2020-07-28 18:58:15,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:15,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2020-07-28 18:58:15,479 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 124 transitions. [2020-07-28 18:58:15,633 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 18:58:15,634 INFO L225 Difference]: With dead ends: 84 [2020-07-28 18:58:15,634 INFO L226 Difference]: Without dead ends: 45 [2020-07-28 18:58:15,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:15,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-28 18:58:15,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-07-28 18:58:15,672 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:15,672 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 45 states. [2020-07-28 18:58:15,672 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 18:58:15,673 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 18:58:15,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:15,675 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2020-07-28 18:58:15,675 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-07-28 18:58:15,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:15,676 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:15,676 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 18:58:15,681 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 18:58:15,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:15,688 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2020-07-28 18:58:15,688 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-07-28 18:58:15,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:15,690 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:15,690 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:15,691 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:15,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-28 18:58:15,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-07-28 18:58:15,695 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 22 [2020-07-28 18:58:15,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:15,697 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-07-28 18:58:15,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:58:15,697 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-07-28 18:58:15,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 18:58:15,698 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:15,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:58:15,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 18:58:15,699 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:15,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:15,700 INFO L82 PathProgramCache]: Analyzing trace with hash 2091202829, now seen corresponding path program 1 times [2020-07-28 18:58:15,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:15,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181488540] [2020-07-28 18:58:15,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:15,818 INFO L280 TraceCheckUtils]: 0: Hoare triple {1348#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,819 INFO L280 TraceCheckUtils]: 1: Hoare triple {1350#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,820 INFO L280 TraceCheckUtils]: 2: Hoare triple {1350#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,821 INFO L280 TraceCheckUtils]: 3: Hoare triple {1350#(= 0 ~pumpRunning~0)} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,822 INFO L280 TraceCheckUtils]: 4: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~3; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,822 INFO L280 TraceCheckUtils]: 5: Hoare triple {1350#(= 0 ~pumpRunning~0)} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,823 INFO L280 TraceCheckUtils]: 6: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !false; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,825 INFO L280 TraceCheckUtils]: 7: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,826 INFO L280 TraceCheckUtils]: 8: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet59 && test_#t~nondet59 <= 2147483647;test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,827 INFO L280 TraceCheckUtils]: 9: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~8); {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,828 INFO L280 TraceCheckUtils]: 10: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet60 && test_#t~nondet60 <= 2147483647;test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,829 INFO L280 TraceCheckUtils]: 11: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~2); {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,829 INFO L280 TraceCheckUtils]: 12: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet61 && test_#t~nondet61 <= 2147483647;test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,830 INFO L280 TraceCheckUtils]: 13: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___2~0; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,831 INFO L280 TraceCheckUtils]: 14: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,832 INFO L280 TraceCheckUtils]: 15: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,833 INFO L280 TraceCheckUtils]: 16: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:15,834 INFO L280 TraceCheckUtils]: 17: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1349#false} is VALID [2020-07-28 18:58:15,834 INFO L280 TraceCheckUtils]: 18: Hoare triple {1349#false} havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {1349#false} is VALID [2020-07-28 18:58:15,835 INFO L280 TraceCheckUtils]: 19: Hoare triple {1349#false} __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret36 && __utac_acc__Specification1_spec__1_#t~ret36 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; {1349#false} is VALID [2020-07-28 18:58:15,835 INFO L280 TraceCheckUtils]: 20: Hoare triple {1349#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {1349#false} is VALID [2020-07-28 18:58:15,835 INFO L280 TraceCheckUtils]: 21: Hoare triple {1349#false} __utac_acc__Specification1_spec__1_#t~ret37 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret37 && __utac_acc__Specification1_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; {1349#false} is VALID [2020-07-28 18:58:15,836 INFO L280 TraceCheckUtils]: 22: Hoare triple {1349#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {1349#false} is VALID [2020-07-28 18:58:15,836 INFO L280 TraceCheckUtils]: 23: Hoare triple {1349#false} assume !false; {1349#false} is VALID [2020-07-28 18:58:15,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:15,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181488540] [2020-07-28 18:58:15,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:15,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:58:15,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291971253] [2020-07-28 18:58:15,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 18:58:15,839 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:15,839 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:58:15,878 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:15,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:58:15,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:15,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:58:15,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:15,879 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2020-07-28 18:58:16,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:16,088 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2020-07-28 18:58:16,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:58:16,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 18:58:16,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:16,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2020-07-28 18:58:16,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:16,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2020-07-28 18:58:16,094 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 152 transitions. [2020-07-28 18:58:16,258 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 18:58:16,260 INFO L225 Difference]: With dead ends: 105 [2020-07-28 18:58:16,260 INFO L226 Difference]: Without dead ends: 66 [2020-07-28 18:58:16,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:16,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-28 18:58:16,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-07-28 18:58:16,305 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:16,305 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states. Second operand 64 states. [2020-07-28 18:58:16,305 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 64 states. [2020-07-28 18:58:16,306 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 64 states. [2020-07-28 18:58:16,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:16,309 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2020-07-28 18:58:16,309 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2020-07-28 18:58:16,310 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:16,310 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:16,310 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 66 states. [2020-07-28 18:58:16,310 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 66 states. [2020-07-28 18:58:16,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:16,317 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2020-07-28 18:58:16,317 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2020-07-28 18:58:16,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:16,318 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:16,318 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:16,318 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:16,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-28 18:58:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2020-07-28 18:58:16,321 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 24 [2020-07-28 18:58:16,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:16,322 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2020-07-28 18:58:16,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:58:16,322 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2020-07-28 18:58:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-28 18:58:16,323 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:16,323 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 18:58:16,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 18:58:16,324 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:16,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:16,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1013899842, now seen corresponding path program 1 times [2020-07-28 18:58:16,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:16,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730287030] [2020-07-28 18:58:16,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:16,478 INFO L280 TraceCheckUtils]: 0: Hoare triple {1713#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1713#true} is VALID [2020-07-28 18:58:16,478 INFO L280 TraceCheckUtils]: 1: Hoare triple {1713#true} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {1713#true} is VALID [2020-07-28 18:58:16,478 INFO L280 TraceCheckUtils]: 2: Hoare triple {1713#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {1713#true} is VALID [2020-07-28 18:58:16,479 INFO L280 TraceCheckUtils]: 3: Hoare triple {1713#true} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {1713#true} is VALID [2020-07-28 18:58:16,479 INFO L280 TraceCheckUtils]: 4: Hoare triple {1713#true} assume 0 != main_~tmp~3; {1713#true} is VALID [2020-07-28 18:58:16,479 INFO L280 TraceCheckUtils]: 5: Hoare triple {1713#true} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1713#true} is VALID [2020-07-28 18:58:16,479 INFO L280 TraceCheckUtils]: 6: Hoare triple {1713#true} assume !false; {1713#true} is VALID [2020-07-28 18:58:16,480 INFO L280 TraceCheckUtils]: 7: Hoare triple {1713#true} assume test_~splverifierCounter~0 < 4; {1713#true} is VALID [2020-07-28 18:58:16,480 INFO L280 TraceCheckUtils]: 8: Hoare triple {1713#true} assume -2147483648 <= test_#t~nondet59 && test_#t~nondet59 <= 2147483647;test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; {1713#true} is VALID [2020-07-28 18:58:16,480 INFO L280 TraceCheckUtils]: 9: Hoare triple {1713#true} assume !(0 != test_~tmp~8); {1713#true} is VALID [2020-07-28 18:58:16,480 INFO L280 TraceCheckUtils]: 10: Hoare triple {1713#true} assume -2147483648 <= test_#t~nondet60 && test_#t~nondet60 <= 2147483647;test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; {1713#true} is VALID [2020-07-28 18:58:16,481 INFO L280 TraceCheckUtils]: 11: Hoare triple {1713#true} assume !(0 != test_~tmp___0~2); {1713#true} is VALID [2020-07-28 18:58:16,481 INFO L280 TraceCheckUtils]: 12: Hoare triple {1713#true} assume -2147483648 <= test_#t~nondet61 && test_#t~nondet61 <= 2147483647;test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; {1713#true} is VALID [2020-07-28 18:58:16,481 INFO L280 TraceCheckUtils]: 13: Hoare triple {1713#true} assume 0 != test_~tmp___2~0; {1713#true} is VALID [2020-07-28 18:58:16,481 INFO L280 TraceCheckUtils]: 14: Hoare triple {1713#true} assume !(0 != ~pumpRunning~0); {1713#true} is VALID [2020-07-28 18:58:16,482 INFO L280 TraceCheckUtils]: 15: Hoare triple {1713#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; {1713#true} is VALID [2020-07-28 18:58:16,482 INFO L280 TraceCheckUtils]: 16: Hoare triple {1713#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; {1713#true} is VALID [2020-07-28 18:58:16,482 INFO L280 TraceCheckUtils]: 17: Hoare triple {1713#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {1713#true} is VALID [2020-07-28 18:58:16,483 INFO L280 TraceCheckUtils]: 18: Hoare triple {1713#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {1713#true} is VALID [2020-07-28 18:58:16,484 INFO L280 TraceCheckUtils]: 19: Hoare triple {1713#true} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret58 && isHighWaterLevel_#t~ret58 <= 2147483647;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {1713#true} is VALID [2020-07-28 18:58:16,485 INFO L280 TraceCheckUtils]: 20: Hoare triple {1713#true} assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; {1715#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1)} is VALID [2020-07-28 18:58:16,486 INFO L280 TraceCheckUtils]: 21: Hoare triple {1715#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1)} isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; {1716#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} is VALID [2020-07-28 18:58:16,487 INFO L280 TraceCheckUtils]: 22: Hoare triple {1716#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret39 && processEnvironment__wrappee__highWaterSensor_#t~ret39 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; {1717#(= 0 ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5)} is VALID [2020-07-28 18:58:16,487 INFO L280 TraceCheckUtils]: 23: Hoare triple {1717#(= 0 ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5)} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~5;~pumpRunning~0 := 1; {1714#false} is VALID [2020-07-28 18:58:16,487 INFO L280 TraceCheckUtils]: 24: Hoare triple {1714#false} havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {1714#false} is VALID [2020-07-28 18:58:16,488 INFO L280 TraceCheckUtils]: 25: Hoare triple {1714#false} __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret36 && __utac_acc__Specification1_spec__1_#t~ret36 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; {1714#false} is VALID [2020-07-28 18:58:16,488 INFO L280 TraceCheckUtils]: 26: Hoare triple {1714#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {1714#false} is VALID [2020-07-28 18:58:16,488 INFO L280 TraceCheckUtils]: 27: Hoare triple {1714#false} __utac_acc__Specification1_spec__1_#t~ret37 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret37 && __utac_acc__Specification1_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; {1714#false} is VALID [2020-07-28 18:58:16,488 INFO L280 TraceCheckUtils]: 28: Hoare triple {1714#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {1714#false} is VALID [2020-07-28 18:58:16,489 INFO L280 TraceCheckUtils]: 29: Hoare triple {1714#false} assume !false; {1714#false} is VALID [2020-07-28 18:58:16,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:16,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730287030] [2020-07-28 18:58:16,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:16,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 18:58:16,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097899418] [2020-07-28 18:58:16,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 18:58:16,492 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:16,492 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:58:16,545 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 18:58:16,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:58:16,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:16,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:58:16,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:16,546 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 5 states. [2020-07-28 18:58:17,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:17,214 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2020-07-28 18:58:17,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 18:58:17,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 18:58:17,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:17,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2020-07-28 18:58:17,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:17,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2020-07-28 18:58:17,221 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 185 transitions. [2020-07-28 18:58:17,464 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 18:58:17,467 INFO L225 Difference]: With dead ends: 171 [2020-07-28 18:58:17,468 INFO L226 Difference]: Without dead ends: 113 [2020-07-28 18:58:17,468 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 18:58:17,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-07-28 18:58:17,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 70. [2020-07-28 18:58:17,547 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:17,547 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 70 states. [2020-07-28 18:58:17,548 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 70 states. [2020-07-28 18:58:17,548 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 70 states. [2020-07-28 18:58:17,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:17,556 INFO L93 Difference]: Finished difference Result 113 states and 153 transitions. [2020-07-28 18:58:17,556 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 153 transitions. [2020-07-28 18:58:17,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:17,557 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:17,557 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 113 states. [2020-07-28 18:58:17,557 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 113 states. [2020-07-28 18:58:17,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:17,563 INFO L93 Difference]: Finished difference Result 113 states and 153 transitions. [2020-07-28 18:58:17,563 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 153 transitions. [2020-07-28 18:58:17,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:17,564 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:17,564 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:17,565 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:17,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-28 18:58:17,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2020-07-28 18:58:17,568 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 30 [2020-07-28 18:58:17,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:17,569 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2020-07-28 18:58:17,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:58:17,569 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2020-07-28 18:58:17,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-28 18:58:17,570 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:17,571 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 18:58:17,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 18:58:17,572 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:17,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:17,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1648611201, now seen corresponding path program 1 times [2020-07-28 18:58:17,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:17,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201833585] [2020-07-28 18:58:17,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:17,720 INFO L280 TraceCheckUtils]: 0: Hoare triple {2277#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,721 INFO L280 TraceCheckUtils]: 1: Hoare triple {2279#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,722 INFO L280 TraceCheckUtils]: 2: Hoare triple {2279#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,722 INFO L280 TraceCheckUtils]: 3: Hoare triple {2279#(= 0 ~pumpRunning~0)} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,723 INFO L280 TraceCheckUtils]: 4: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~3; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,724 INFO L280 TraceCheckUtils]: 5: Hoare triple {2279#(= 0 ~pumpRunning~0)} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,724 INFO L280 TraceCheckUtils]: 6: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume !false; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,725 INFO L280 TraceCheckUtils]: 7: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,726 INFO L280 TraceCheckUtils]: 8: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet59 && test_#t~nondet59 <= 2147483647;test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,726 INFO L280 TraceCheckUtils]: 9: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~8); {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,727 INFO L280 TraceCheckUtils]: 10: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet60 && test_#t~nondet60 <= 2147483647;test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,734 INFO L280 TraceCheckUtils]: 11: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~2); {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,735 INFO L280 TraceCheckUtils]: 12: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet61 && test_#t~nondet61 <= 2147483647;test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,736 INFO L280 TraceCheckUtils]: 13: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___2~0; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,736 INFO L280 TraceCheckUtils]: 14: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,737 INFO L280 TraceCheckUtils]: 15: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,738 INFO L280 TraceCheckUtils]: 16: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,738 INFO L280 TraceCheckUtils]: 17: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,739 INFO L280 TraceCheckUtils]: 18: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,740 INFO L280 TraceCheckUtils]: 19: Hoare triple {2279#(= 0 ~pumpRunning~0)} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret58 && isHighWaterLevel_#t~ret58 <= 2147483647;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,741 INFO L280 TraceCheckUtils]: 20: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,741 INFO L280 TraceCheckUtils]: 21: Hoare triple {2279#(= 0 ~pumpRunning~0)} isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,742 INFO L280 TraceCheckUtils]: 22: Hoare triple {2279#(= 0 ~pumpRunning~0)} processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret39 && processEnvironment__wrappee__highWaterSensor_#t~ret39 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,743 INFO L280 TraceCheckUtils]: 23: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,743 INFO L280 TraceCheckUtils]: 24: Hoare triple {2279#(= 0 ~pumpRunning~0)} havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,744 INFO L280 TraceCheckUtils]: 25: Hoare triple {2279#(= 0 ~pumpRunning~0)} __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret36 && __utac_acc__Specification1_spec__1_#t~ret36 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; {2279#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:58:17,744 INFO L280 TraceCheckUtils]: 26: Hoare triple {2279#(= 0 ~pumpRunning~0)} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {2280#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} is VALID [2020-07-28 18:58:17,745 INFO L280 TraceCheckUtils]: 27: Hoare triple {2280#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} __utac_acc__Specification1_spec__1_#t~ret37 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret37 && __utac_acc__Specification1_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; {2281#(= 0 ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp___0~0)} is VALID [2020-07-28 18:58:17,746 INFO L280 TraceCheckUtils]: 28: Hoare triple {2281#(= 0 ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp___0~0)} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {2278#false} is VALID [2020-07-28 18:58:17,746 INFO L280 TraceCheckUtils]: 29: Hoare triple {2278#false} assume !false; {2278#false} is VALID [2020-07-28 18:58:17,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:17,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201833585] [2020-07-28 18:58:17,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:17,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:58:17,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109699468] [2020-07-28 18:58:17,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 18:58:17,751 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:17,751 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:58:17,797 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 18:58:17,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:58:17,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:17,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:58:17,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:17,799 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 5 states. [2020-07-28 18:58:18,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:18,696 INFO L93 Difference]: Finished difference Result 198 states and 274 transitions. [2020-07-28 18:58:18,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 18:58:18,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 18:58:18,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:18,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 253 transitions. [2020-07-28 18:58:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:18,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 253 transitions. [2020-07-28 18:58:18,704 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 253 transitions. [2020-07-28 18:58:19,018 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 253 edges. 253 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:19,023 INFO L225 Difference]: With dead ends: 198 [2020-07-28 18:58:19,024 INFO L226 Difference]: Without dead ends: 196 [2020-07-28 18:58:19,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:58:19,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-07-28 18:58:19,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 70. [2020-07-28 18:58:19,121 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:19,122 INFO L82 GeneralOperation]: Start isEquivalent. First operand 196 states. Second operand 70 states. [2020-07-28 18:58:19,122 INFO L74 IsIncluded]: Start isIncluded. First operand 196 states. Second operand 70 states. [2020-07-28 18:58:19,122 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 70 states. [2020-07-28 18:58:19,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:19,129 INFO L93 Difference]: Finished difference Result 196 states and 272 transitions. [2020-07-28 18:58:19,129 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 272 transitions. [2020-07-28 18:58:19,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:19,130 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:19,130 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 196 states. [2020-07-28 18:58:19,130 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 196 states. [2020-07-28 18:58:19,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:19,137 INFO L93 Difference]: Finished difference Result 196 states and 272 transitions. [2020-07-28 18:58:19,137 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 272 transitions. [2020-07-28 18:58:19,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:19,138 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:19,138 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:19,138 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:19,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-28 18:58:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 95 transitions. [2020-07-28 18:58:19,141 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 95 transitions. Word has length 30 [2020-07-28 18:58:19,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:19,141 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 95 transitions. [2020-07-28 18:58:19,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:58:19,141 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 95 transitions. [2020-07-28 18:58:19,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-28 18:58:19,142 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:19,142 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 18:58:19,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 18:58:19,142 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:19,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:19,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1406926852, now seen corresponding path program 1 times [2020-07-28 18:58:19,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:19,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869838785] [2020-07-28 18:58:19,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:19,199 INFO L280 TraceCheckUtils]: 0: Hoare triple {3046#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {3046#true} is VALID [2020-07-28 18:58:19,199 INFO L280 TraceCheckUtils]: 1: Hoare triple {3046#true} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {3046#true} is VALID [2020-07-28 18:58:19,199 INFO L280 TraceCheckUtils]: 2: Hoare triple {3046#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {3046#true} is VALID [2020-07-28 18:58:19,199 INFO L280 TraceCheckUtils]: 3: Hoare triple {3046#true} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {3046#true} is VALID [2020-07-28 18:58:19,200 INFO L280 TraceCheckUtils]: 4: Hoare triple {3046#true} assume 0 != main_~tmp~3; {3046#true} is VALID [2020-07-28 18:58:19,200 INFO L280 TraceCheckUtils]: 5: Hoare triple {3046#true} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {3046#true} is VALID [2020-07-28 18:58:19,200 INFO L280 TraceCheckUtils]: 6: Hoare triple {3046#true} assume !false; {3046#true} is VALID [2020-07-28 18:58:19,200 INFO L280 TraceCheckUtils]: 7: Hoare triple {3046#true} assume test_~splverifierCounter~0 < 4; {3046#true} is VALID [2020-07-28 18:58:19,201 INFO L280 TraceCheckUtils]: 8: Hoare triple {3046#true} assume -2147483648 <= test_#t~nondet59 && test_#t~nondet59 <= 2147483647;test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; {3046#true} is VALID [2020-07-28 18:58:19,201 INFO L280 TraceCheckUtils]: 9: Hoare triple {3046#true} assume !(0 != test_~tmp~8); {3046#true} is VALID [2020-07-28 18:58:19,201 INFO L280 TraceCheckUtils]: 10: Hoare triple {3046#true} assume -2147483648 <= test_#t~nondet60 && test_#t~nondet60 <= 2147483647;test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; {3046#true} is VALID [2020-07-28 18:58:19,201 INFO L280 TraceCheckUtils]: 11: Hoare triple {3046#true} assume !(0 != test_~tmp___0~2); {3046#true} is VALID [2020-07-28 18:58:19,202 INFO L280 TraceCheckUtils]: 12: Hoare triple {3046#true} assume -2147483648 <= test_#t~nondet61 && test_#t~nondet61 <= 2147483647;test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; {3046#true} is VALID [2020-07-28 18:58:19,202 INFO L280 TraceCheckUtils]: 13: Hoare triple {3046#true} assume 0 != test_~tmp___2~0; {3046#true} is VALID [2020-07-28 18:58:19,202 INFO L280 TraceCheckUtils]: 14: Hoare triple {3046#true} assume !(0 != ~pumpRunning~0); {3046#true} is VALID [2020-07-28 18:58:19,202 INFO L280 TraceCheckUtils]: 15: Hoare triple {3046#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; {3046#true} is VALID [2020-07-28 18:58:19,202 INFO L280 TraceCheckUtils]: 16: Hoare triple {3046#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; {3046#true} is VALID [2020-07-28 18:58:19,203 INFO L280 TraceCheckUtils]: 17: Hoare triple {3046#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {3046#true} is VALID [2020-07-28 18:58:19,204 INFO L280 TraceCheckUtils]: 18: Hoare triple {3046#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {3048#(= 1 |ULTIMATE.start_isHighWaterSensorDry_#res|)} is VALID [2020-07-28 18:58:19,204 INFO L280 TraceCheckUtils]: 19: Hoare triple {3048#(= 1 |ULTIMATE.start_isHighWaterSensorDry_#res|)} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret58 && isHighWaterLevel_#t~ret58 <= 2147483647;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {3049#(= 1 ULTIMATE.start_isHighWaterLevel_~tmp~7)} is VALID [2020-07-28 18:58:19,205 INFO L280 TraceCheckUtils]: 20: Hoare triple {3049#(= 1 ULTIMATE.start_isHighWaterLevel_~tmp~7)} assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~1 := 1; {3047#false} is VALID [2020-07-28 18:58:19,205 INFO L280 TraceCheckUtils]: 21: Hoare triple {3047#false} isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; {3047#false} is VALID [2020-07-28 18:58:19,206 INFO L280 TraceCheckUtils]: 22: Hoare triple {3047#false} processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret39 && processEnvironment__wrappee__highWaterSensor_#t~ret39 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; {3047#false} is VALID [2020-07-28 18:58:19,206 INFO L280 TraceCheckUtils]: 23: Hoare triple {3047#false} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~5;~pumpRunning~0 := 1; {3047#false} is VALID [2020-07-28 18:58:19,206 INFO L280 TraceCheckUtils]: 24: Hoare triple {3047#false} havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {3047#false} is VALID [2020-07-28 18:58:19,206 INFO L280 TraceCheckUtils]: 25: Hoare triple {3047#false} __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret36 && __utac_acc__Specification1_spec__1_#t~ret36 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; {3047#false} is VALID [2020-07-28 18:58:19,207 INFO L280 TraceCheckUtils]: 26: Hoare triple {3047#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {3047#false} is VALID [2020-07-28 18:58:19,207 INFO L280 TraceCheckUtils]: 27: Hoare triple {3047#false} __utac_acc__Specification1_spec__1_#t~ret37 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret37 && __utac_acc__Specification1_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; {3047#false} is VALID [2020-07-28 18:58:19,207 INFO L280 TraceCheckUtils]: 28: Hoare triple {3047#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {3047#false} is VALID [2020-07-28 18:58:19,207 INFO L280 TraceCheckUtils]: 29: Hoare triple {3047#false} assume !false; {3047#false} is VALID [2020-07-28 18:58:19,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:19,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869838785] [2020-07-28 18:58:19,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:19,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:58:19,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891322312] [2020-07-28 18:58:19,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-07-28 18:58:19,210 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:19,210 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 18:58:19,261 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 18:58:19,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 18:58:19,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:19,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 18:58:19,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 18:58:19,263 INFO L87 Difference]: Start difference. First operand 70 states and 95 transitions. Second operand 4 states. [2020-07-28 18:58:19,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:19,740 INFO L93 Difference]: Finished difference Result 164 states and 223 transitions. [2020-07-28 18:58:19,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 18:58:19,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-07-28 18:58:19,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:19,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:58:19,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2020-07-28 18:58:19,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:58:19,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2020-07-28 18:58:19,746 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 159 transitions. [2020-07-28 18:58:19,943 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 18:58:19,945 INFO L225 Difference]: With dead ends: 164 [2020-07-28 18:58:19,945 INFO L226 Difference]: Without dead ends: 100 [2020-07-28 18:58:19,946 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 18:58:19,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-28 18:58:20,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 74. [2020-07-28 18:58:20,051 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:20,052 INFO L82 GeneralOperation]: Start isEquivalent. First operand 100 states. Second operand 74 states. [2020-07-28 18:58:20,052 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 74 states. [2020-07-28 18:58:20,052 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 74 states. [2020-07-28 18:58:20,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:20,055 INFO L93 Difference]: Finished difference Result 100 states and 132 transitions. [2020-07-28 18:58:20,055 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 132 transitions. [2020-07-28 18:58:20,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:20,056 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:20,056 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 100 states. [2020-07-28 18:58:20,056 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 100 states. [2020-07-28 18:58:20,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:20,060 INFO L93 Difference]: Finished difference Result 100 states and 132 transitions. [2020-07-28 18:58:20,060 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 132 transitions. [2020-07-28 18:58:20,060 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:20,061 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:20,061 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:20,061 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:20,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-28 18:58:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 99 transitions. [2020-07-28 18:58:20,064 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 99 transitions. Word has length 30 [2020-07-28 18:58:20,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:20,064 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 99 transitions. [2020-07-28 18:58:20,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 18:58:20,065 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 99 transitions. [2020-07-28 18:58:20,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-28 18:58:20,065 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:20,066 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 18:58:20,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 18:58:20,066 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:20,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:20,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1148761414, now seen corresponding path program 1 times [2020-07-28 18:58:20,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:20,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385296328] [2020-07-28 18:58:20,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:20,117 INFO L280 TraceCheckUtils]: 0: Hoare triple {3578#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,118 INFO L280 TraceCheckUtils]: 1: Hoare triple {3580#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,119 INFO L280 TraceCheckUtils]: 2: Hoare triple {3580#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,119 INFO L280 TraceCheckUtils]: 3: Hoare triple {3580#(= 1 ~waterLevel~0)} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,120 INFO L280 TraceCheckUtils]: 4: Hoare triple {3580#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~3; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,121 INFO L280 TraceCheckUtils]: 5: Hoare triple {3580#(= 1 ~waterLevel~0)} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,121 INFO L280 TraceCheckUtils]: 6: Hoare triple {3580#(= 1 ~waterLevel~0)} assume !false; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,122 INFO L280 TraceCheckUtils]: 7: Hoare triple {3580#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,123 INFO L280 TraceCheckUtils]: 8: Hoare triple {3580#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet59 && test_#t~nondet59 <= 2147483647;test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,123 INFO L280 TraceCheckUtils]: 9: Hoare triple {3580#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp~8); {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,124 INFO L280 TraceCheckUtils]: 10: Hoare triple {3580#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet60 && test_#t~nondet60 <= 2147483647;test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,125 INFO L280 TraceCheckUtils]: 11: Hoare triple {3580#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp___0~2); {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,126 INFO L280 TraceCheckUtils]: 12: Hoare triple {3580#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet61 && test_#t~nondet61 <= 2147483647;test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,126 INFO L280 TraceCheckUtils]: 13: Hoare triple {3580#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___2~0; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,127 INFO L280 TraceCheckUtils]: 14: Hoare triple {3580#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,128 INFO L280 TraceCheckUtils]: 15: Hoare triple {3580#(= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,129 INFO L280 TraceCheckUtils]: 16: Hoare triple {3580#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,130 INFO L280 TraceCheckUtils]: 17: Hoare triple {3580#(= 1 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {3580#(= 1 ~waterLevel~0)} is VALID [2020-07-28 18:58:20,130 INFO L280 TraceCheckUtils]: 18: Hoare triple {3580#(= 1 ~waterLevel~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {3579#false} is VALID [2020-07-28 18:58:20,131 INFO L280 TraceCheckUtils]: 19: Hoare triple {3579#false} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret58 && isHighWaterLevel_#t~ret58 <= 2147483647;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {3579#false} is VALID [2020-07-28 18:58:20,131 INFO L280 TraceCheckUtils]: 20: Hoare triple {3579#false} assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~1 := 1; {3579#false} is VALID [2020-07-28 18:58:20,131 INFO L280 TraceCheckUtils]: 21: Hoare triple {3579#false} isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; {3579#false} is VALID [2020-07-28 18:58:20,131 INFO L280 TraceCheckUtils]: 22: Hoare triple {3579#false} processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret39 && processEnvironment__wrappee__highWaterSensor_#t~ret39 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; {3579#false} is VALID [2020-07-28 18:58:20,132 INFO L280 TraceCheckUtils]: 23: Hoare triple {3579#false} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~5;~pumpRunning~0 := 1; {3579#false} is VALID [2020-07-28 18:58:20,132 INFO L280 TraceCheckUtils]: 24: Hoare triple {3579#false} havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {3579#false} is VALID [2020-07-28 18:58:20,132 INFO L280 TraceCheckUtils]: 25: Hoare triple {3579#false} __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret36 && __utac_acc__Specification1_spec__1_#t~ret36 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; {3579#false} is VALID [2020-07-28 18:58:20,133 INFO L280 TraceCheckUtils]: 26: Hoare triple {3579#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {3579#false} is VALID [2020-07-28 18:58:20,133 INFO L280 TraceCheckUtils]: 27: Hoare triple {3579#false} __utac_acc__Specification1_spec__1_#t~ret37 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret37 && __utac_acc__Specification1_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; {3579#false} is VALID [2020-07-28 18:58:20,133 INFO L280 TraceCheckUtils]: 28: Hoare triple {3579#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {3579#false} is VALID [2020-07-28 18:58:20,133 INFO L280 TraceCheckUtils]: 29: Hoare triple {3579#false} assume !false; {3579#false} is VALID [2020-07-28 18:58:20,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:20,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385296328] [2020-07-28 18:58:20,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:20,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:58:20,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283422288] [2020-07-28 18:58:20,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-07-28 18:58:20,137 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:20,137 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:58:20,178 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 18:58:20,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:58:20,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:20,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:58:20,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:20,179 INFO L87 Difference]: Start difference. First operand 74 states and 99 transitions. Second operand 3 states. [2020-07-28 18:58:20,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:20,512 INFO L93 Difference]: Finished difference Result 168 states and 226 transitions. [2020-07-28 18:58:20,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:58:20,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-07-28 18:58:20,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:20,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:20,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2020-07-28 18:58:20,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:58:20,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2020-07-28 18:58:20,518 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 154 transitions. [2020-07-28 18:58:20,679 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 154 edges. 154 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:20,682 INFO L225 Difference]: With dead ends: 168 [2020-07-28 18:58:20,682 INFO L226 Difference]: Without dead ends: 100 [2020-07-28 18:58:20,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:58:20,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-28 18:58:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-28 18:58:20,852 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:20,852 INFO L82 GeneralOperation]: Start isEquivalent. First operand 100 states. Second operand 100 states. [2020-07-28 18:58:20,852 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 100 states. [2020-07-28 18:58:20,852 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 100 states. [2020-07-28 18:58:20,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:20,863 INFO L93 Difference]: Finished difference Result 100 states and 131 transitions. [2020-07-28 18:58:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 131 transitions. [2020-07-28 18:58:20,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:20,866 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:20,867 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 100 states. [2020-07-28 18:58:20,867 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 100 states. [2020-07-28 18:58:20,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:20,874 INFO L93 Difference]: Finished difference Result 100 states and 131 transitions. [2020-07-28 18:58:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 131 transitions. [2020-07-28 18:58:20,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:20,876 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:20,876 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:20,876 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-28 18:58:20,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 131 transitions. [2020-07-28 18:58:20,883 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 131 transitions. Word has length 30 [2020-07-28 18:58:20,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:20,884 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 131 transitions. [2020-07-28 18:58:20,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:58:20,884 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 131 transitions. [2020-07-28 18:58:20,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-28 18:58:20,885 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:20,885 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 18:58:20,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 18:58:20,885 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:20,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:20,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1138389688, now seen corresponding path program 1 times [2020-07-28 18:58:20,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:20,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144711264] [2020-07-28 18:58:20,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:58:21,058 INFO L280 TraceCheckUtils]: 0: Hoare triple {4147#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,060 INFO L280 TraceCheckUtils]: 1: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,061 INFO L280 TraceCheckUtils]: 2: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,062 INFO L280 TraceCheckUtils]: 3: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} main_#t~ret35 := valid_product_#res;assume -2147483648 <= main_#t~ret35 && main_#t~ret35 <= 2147483647;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,063 INFO L280 TraceCheckUtils]: 4: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume 0 != main_~tmp~3; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,064 INFO L280 TraceCheckUtils]: 5: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,066 INFO L280 TraceCheckUtils]: 6: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !false; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,072 INFO L280 TraceCheckUtils]: 7: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume test_~splverifierCounter~0 < 4; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,074 INFO L280 TraceCheckUtils]: 8: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume -2147483648 <= test_#t~nondet59 && test_#t~nondet59 <= 2147483647;test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,075 INFO L280 TraceCheckUtils]: 9: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume 0 != test_~tmp~8; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,075 INFO L280 TraceCheckUtils]: 10: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,076 INFO L280 TraceCheckUtils]: 11: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume -2147483648 <= test_#t~nondet60 && test_#t~nondet60 <= 2147483647;test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,077 INFO L280 TraceCheckUtils]: 12: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !(0 != test_~tmp___0~2); {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,077 INFO L280 TraceCheckUtils]: 13: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume -2147483648 <= test_#t~nondet61 && test_#t~nondet61 <= 2147483647;test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,078 INFO L280 TraceCheckUtils]: 14: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume 0 != test_~tmp___2~0; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,079 INFO L280 TraceCheckUtils]: 15: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !(0 != ~pumpRunning~0); {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,080 INFO L280 TraceCheckUtils]: 16: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,081 INFO L280 TraceCheckUtils]: 17: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,082 INFO L280 TraceCheckUtils]: 18: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,083 INFO L280 TraceCheckUtils]: 19: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,084 INFO L280 TraceCheckUtils]: 20: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret58 && isHighWaterLevel_#t~ret58 <= 2147483647;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,085 INFO L280 TraceCheckUtils]: 21: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~1 := 1; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,086 INFO L280 TraceCheckUtils]: 22: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,087 INFO L280 TraceCheckUtils]: 23: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret39 && processEnvironment__wrappee__highWaterSensor_#t~ret39 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,088 INFO L280 TraceCheckUtils]: 24: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~5;~pumpRunning~0 := 1; {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 18:58:21,089 INFO L280 TraceCheckUtils]: 25: Hoare triple {4149#(and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))} havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; {4150#(and (<= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (<= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|))} is VALID [2020-07-28 18:58:21,090 INFO L280 TraceCheckUtils]: 26: Hoare triple {4150#(and (<= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (<= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|))} __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret36 && __utac_acc__Specification1_spec__1_#t~ret36 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; {4151#(and (<= ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~4 0) (< 0 (+ ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~4 1)))} is VALID [2020-07-28 18:58:21,096 INFO L280 TraceCheckUtils]: 27: Hoare triple {4151#(and (<= ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~4 0) (< 0 (+ ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~4 1)))} assume 0 != __utac_acc__Specification1_spec__1_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; {4148#false} is VALID [2020-07-28 18:58:21,096 INFO L280 TraceCheckUtils]: 28: Hoare triple {4148#false} __utac_acc__Specification1_spec__1_#t~ret37 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification1_spec__1_#t~ret37 && __utac_acc__Specification1_spec__1_#t~ret37 <= 2147483647;__utac_acc__Specification1_spec__1_~tmp___0~0 := __utac_acc__Specification1_spec__1_#t~ret37;havoc __utac_acc__Specification1_spec__1_#t~ret37; {4148#false} is VALID [2020-07-28 18:58:21,096 INFO L280 TraceCheckUtils]: 29: Hoare triple {4148#false} assume 0 != __utac_acc__Specification1_spec__1_~tmp___0~0; {4148#false} is VALID [2020-07-28 18:58:21,097 INFO L280 TraceCheckUtils]: 30: Hoare triple {4148#false} assume !false; {4148#false} is VALID [2020-07-28 18:58:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:58:21,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144711264] [2020-07-28 18:58:21,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:58:21,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:58:21,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222625281] [2020-07-28 18:58:21,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-07-28 18:58:21,102 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:58:21,102 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:58:21,150 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 18:58:21,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:58:21,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:58:21,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:58:21,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:58:21,152 INFO L87 Difference]: Start difference. First operand 100 states and 131 transitions. Second operand 5 states. [2020-07-28 18:58:22,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:22,646 INFO L93 Difference]: Finished difference Result 511 states and 678 transitions. [2020-07-28 18:58:22,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 18:58:22,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-07-28 18:58:22,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:58:22,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:22,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 319 transitions. [2020-07-28 18:58:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:58:22,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 319 transitions. [2020-07-28 18:58:22,651 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 319 transitions. [2020-07-28 18:58:23,075 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 319 edges. 319 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:58:23,088 INFO L225 Difference]: With dead ends: 511 [2020-07-28 18:58:23,088 INFO L226 Difference]: Without dead ends: 417 [2020-07-28 18:58:23,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:58:23,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-07-28 18:58:23,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 186. [2020-07-28 18:58:23,462 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:58:23,463 INFO L82 GeneralOperation]: Start isEquivalent. First operand 417 states. Second operand 186 states. [2020-07-28 18:58:23,463 INFO L74 IsIncluded]: Start isIncluded. First operand 417 states. Second operand 186 states. [2020-07-28 18:58:23,463 INFO L87 Difference]: Start difference. First operand 417 states. Second operand 186 states. [2020-07-28 18:58:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,478 INFO L93 Difference]: Finished difference Result 417 states and 545 transitions. [2020-07-28 18:58:23,478 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 545 transitions. [2020-07-28 18:58:23,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:23,479 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:23,479 INFO L74 IsIncluded]: Start isIncluded. First operand 186 states. Second operand 417 states. [2020-07-28 18:58:23,479 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 417 states. [2020-07-28 18:58:23,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:58:23,493 INFO L93 Difference]: Finished difference Result 417 states and 545 transitions. [2020-07-28 18:58:23,493 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 545 transitions. [2020-07-28 18:58:23,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:58:23,494 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:58:23,494 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:58:23,494 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:58:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-07-28 18:58:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 242 transitions. [2020-07-28 18:58:23,499 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 242 transitions. Word has length 31 [2020-07-28 18:58:23,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:58:23,500 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 242 transitions. [2020-07-28 18:58:23,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:58:23,501 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 242 transitions. [2020-07-28 18:58:23,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-28 18:58:23,502 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:58:23,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:58:23,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 18:58:23,503 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:58:23,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:58:23,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1705214514, now seen corresponding path program 1 times [2020-07-28 18:58:23,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:58:23,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844522125] [2020-07-28 18:58:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:58:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:58:23,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:58:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:58:23,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:58:23,671 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 18:58:23,671 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 18:58:23,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 18:58:23,880 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:58:23,880 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 18:58:23,880 WARN L170 areAnnotationChecker]: L570 has no Hoare annotation [2020-07-28 18:58:23,880 WARN L170 areAnnotationChecker]: L578 has no Hoare annotation [2020-07-28 18:58:23,881 WARN L170 areAnnotationChecker]: L496 has no Hoare annotation [2020-07-28 18:58:23,881 WARN L170 areAnnotationChecker]: L496 has no Hoare annotation [2020-07-28 18:58:23,881 WARN L170 areAnnotationChecker]: L469 has no Hoare annotation [2020-07-28 18:58:23,881 WARN L170 areAnnotationChecker]: L496-1 has no Hoare annotation [2020-07-28 18:58:23,881 WARN L170 areAnnotationChecker]: L521-1 has no Hoare annotation [2020-07-28 18:58:23,881 WARN L170 areAnnotationChecker]: L521-1 has no Hoare annotation [2020-07-28 18:58:23,882 WARN L170 areAnnotationChecker]: L521-1 has no Hoare annotation [2020-07-28 18:58:23,882 WARN L170 areAnnotationChecker]: L505 has no Hoare annotation [2020-07-28 18:58:23,882 WARN L170 areAnnotationChecker]: L822 has no Hoare annotation [2020-07-28 18:58:23,882 WARN L170 areAnnotationChecker]: L777 has no Hoare annotation [2020-07-28 18:58:23,882 WARN L170 areAnnotationChecker]: L777 has no Hoare annotation [2020-07-28 18:58:23,883 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:58:23,883 WARN L170 areAnnotationChecker]: L595-1 has no Hoare annotation [2020-07-28 18:58:23,883 WARN L170 areAnnotationChecker]: L595-1 has no Hoare annotation [2020-07-28 18:58:23,883 WARN L170 areAnnotationChecker]: L778 has no Hoare annotation [2020-07-28 18:58:23,883 WARN L170 areAnnotationChecker]: L838-3 has no Hoare annotation [2020-07-28 18:58:23,883 WARN L170 areAnnotationChecker]: L838-3 has no Hoare annotation [2020-07-28 18:58:23,884 WARN L170 areAnnotationChecker]: L595-2 has no Hoare annotation [2020-07-28 18:58:23,884 WARN L170 areAnnotationChecker]: L595-2 has no Hoare annotation [2020-07-28 18:58:23,884 WARN L170 areAnnotationChecker]: L786 has no Hoare annotation [2020-07-28 18:58:23,884 WARN L170 areAnnotationChecker]: L786 has no Hoare annotation [2020-07-28 18:58:23,884 WARN L170 areAnnotationChecker]: L653-1 has no Hoare annotation [2020-07-28 18:58:23,884 WARN L170 areAnnotationChecker]: L653-1 has no Hoare annotation [2020-07-28 18:58:23,884 WARN L170 areAnnotationChecker]: L602-1 has no Hoare annotation [2020-07-28 18:58:23,885 WARN L170 areAnnotationChecker]: L850 has no Hoare annotation [2020-07-28 18:58:23,885 WARN L170 areAnnotationChecker]: L850 has no Hoare annotation [2020-07-28 18:58:23,885 WARN L170 areAnnotationChecker]: L786-1 has no Hoare annotation [2020-07-28 18:58:23,885 WARN L170 areAnnotationChecker]: L875-2 has no Hoare annotation [2020-07-28 18:58:23,885 WARN L170 areAnnotationChecker]: L627-3 has no Hoare annotation [2020-07-28 18:58:23,886 WARN L170 areAnnotationChecker]: L627-3 has no Hoare annotation [2020-07-28 18:58:23,886 WARN L170 areAnnotationChecker]: L875-3 has no Hoare annotation [2020-07-28 18:58:23,886 WARN L170 areAnnotationChecker]: L796 has no Hoare annotation [2020-07-28 18:58:23,886 WARN L170 areAnnotationChecker]: L796 has no Hoare annotation [2020-07-28 18:58:23,886 WARN L170 areAnnotationChecker]: L697-1 has no Hoare annotation [2020-07-28 18:58:23,887 WARN L170 areAnnotationChecker]: L915-3 has no Hoare annotation [2020-07-28 18:58:23,887 WARN L170 areAnnotationChecker]: L915-3 has no Hoare annotation [2020-07-28 18:58:23,887 WARN L170 areAnnotationChecker]: L521-2 has no Hoare annotation [2020-07-28 18:58:23,887 WARN L170 areAnnotationChecker]: L521-2 has no Hoare annotation [2020-07-28 18:58:23,887 WARN L170 areAnnotationChecker]: L862 has no Hoare annotation [2020-07-28 18:58:23,887 WARN L170 areAnnotationChecker]: L862 has no Hoare annotation [2020-07-28 18:58:23,888 WARN L170 areAnnotationChecker]: L796-1 has no Hoare annotation [2020-07-28 18:58:23,888 WARN L170 areAnnotationChecker]: L657-1 has no Hoare annotation [2020-07-28 18:58:23,888 WARN L170 areAnnotationChecker]: L657-1 has no Hoare annotation [2020-07-28 18:58:23,888 WARN L170 areAnnotationChecker]: L920-3 has no Hoare annotation [2020-07-28 18:58:23,888 WARN L170 areAnnotationChecker]: L706-1 has no Hoare annotation [2020-07-28 18:58:23,888 WARN L170 areAnnotationChecker]: L521-3 has no Hoare annotation [2020-07-28 18:58:23,889 WARN L170 areAnnotationChecker]: L806 has no Hoare annotation [2020-07-28 18:58:23,889 WARN L170 areAnnotationChecker]: L806 has no Hoare annotation [2020-07-28 18:58:23,890 WARN L170 areAnnotationChecker]: L627-2 has no Hoare annotation [2020-07-28 18:58:23,890 WARN L170 areAnnotationChecker]: L627-2 has no Hoare annotation [2020-07-28 18:58:23,890 WARN L170 areAnnotationChecker]: L755-9 has no Hoare annotation [2020-07-28 18:58:23,890 WARN L170 areAnnotationChecker]: L755-9 has no Hoare annotation [2020-07-28 18:58:23,890 WARN L170 areAnnotationChecker]: L525-2 has no Hoare annotation [2020-07-28 18:58:23,890 WARN L170 areAnnotationChecker]: L525-2 has no Hoare annotation [2020-07-28 18:58:23,891 WARN L170 areAnnotationChecker]: L418-2 has no Hoare annotation [2020-07-28 18:58:23,891 WARN L170 areAnnotationChecker]: L418-2 has no Hoare annotation [2020-07-28 18:58:23,891 WARN L170 areAnnotationChecker]: L418-2 has no Hoare annotation [2020-07-28 18:58:23,891 WARN L170 areAnnotationChecker]: L812-2 has no Hoare annotation [2020-07-28 18:58:23,891 WARN L170 areAnnotationChecker]: L812-2 has no Hoare annotation [2020-07-28 18:58:23,891 WARN L170 areAnnotationChecker]: L812 has no Hoare annotation [2020-07-28 18:58:23,892 WARN L170 areAnnotationChecker]: L812 has no Hoare annotation [2020-07-28 18:58:23,892 WARN L170 areAnnotationChecker]: L915-2 has no Hoare annotation [2020-07-28 18:58:23,892 WARN L170 areAnnotationChecker]: L915-2 has no Hoare annotation [2020-07-28 18:58:23,892 WARN L170 areAnnotationChecker]: L755-11 has no Hoare annotation [2020-07-28 18:58:23,892 WARN L170 areAnnotationChecker]: L543-1 has no Hoare annotation [2020-07-28 18:58:23,893 WARN L170 areAnnotationChecker]: L543-1 has no Hoare annotation [2020-07-28 18:58:23,893 WARN L170 areAnnotationChecker]: L419 has no Hoare annotation [2020-07-28 18:58:23,893 WARN L170 areAnnotationChecker]: L838 has no Hoare annotation [2020-07-28 18:58:23,893 WARN L170 areAnnotationChecker]: L838 has no Hoare annotation [2020-07-28 18:58:23,893 WARN L170 areAnnotationChecker]: L595 has no Hoare annotation [2020-07-28 18:58:23,893 WARN L170 areAnnotationChecker]: L595 has no Hoare annotation [2020-07-28 18:58:23,893 WARN L170 areAnnotationChecker]: L920-2 has no Hoare annotation [2020-07-28 18:58:23,894 WARN L170 areAnnotationChecker]: L761-3 has no Hoare annotation [2020-07-28 18:58:23,894 WARN L170 areAnnotationChecker]: L422 has no Hoare annotation [2020-07-28 18:58:23,894 WARN L170 areAnnotationChecker]: L422 has no Hoare annotation [2020-07-28 18:58:23,894 WARN L170 areAnnotationChecker]: L653 has no Hoare annotation [2020-07-28 18:58:23,894 WARN L170 areAnnotationChecker]: L653 has no Hoare annotation [2020-07-28 18:58:23,894 WARN L170 areAnnotationChecker]: L602 has no Hoare annotation [2020-07-28 18:58:23,895 WARN L170 areAnnotationChecker]: L755-6 has no Hoare annotation [2020-07-28 18:58:23,895 WARN L170 areAnnotationChecker]: L755-6 has no Hoare annotation [2020-07-28 18:58:23,895 WARN L170 areAnnotationChecker]: L631-3 has no Hoare annotation [2020-07-28 18:58:23,895 WARN L170 areAnnotationChecker]: L631-3 has no Hoare annotation [2020-07-28 18:58:23,895 WARN L170 areAnnotationChecker]: L422-1 has no Hoare annotation [2020-07-28 18:58:23,895 WARN L170 areAnnotationChecker]: L422-1 has no Hoare annotation [2020-07-28 18:58:23,895 WARN L170 areAnnotationChecker]: L875 has no Hoare annotation [2020-07-28 18:58:23,896 WARN L170 areAnnotationChecker]: L627-1 has no Hoare annotation [2020-07-28 18:58:23,896 WARN L170 areAnnotationChecker]: L627-1 has no Hoare annotation [2020-07-28 18:58:23,896 WARN L170 areAnnotationChecker]: L875-1 has no Hoare annotation [2020-07-28 18:58:23,896 WARN L170 areAnnotationChecker]: L755-8 has no Hoare annotation [2020-07-28 18:58:23,896 WARN L170 areAnnotationChecker]: L838-6 has no Hoare annotation [2020-07-28 18:58:23,896 WARN L170 areAnnotationChecker]: L838-6 has no Hoare annotation [2020-07-28 18:58:23,896 WARN L170 areAnnotationChecker]: L595-3 has no Hoare annotation [2020-07-28 18:58:23,897 WARN L170 areAnnotationChecker]: L595-3 has no Hoare annotation [2020-07-28 18:58:23,897 WARN L170 areAnnotationChecker]: L697 has no Hoare annotation [2020-07-28 18:58:23,897 WARN L170 areAnnotationChecker]: L915-1 has no Hoare annotation [2020-07-28 18:58:23,897 WARN L170 areAnnotationChecker]: L915-1 has no Hoare annotation [2020-07-28 18:58:23,897 WARN L170 areAnnotationChecker]: L521 has no Hoare annotation [2020-07-28 18:58:23,897 WARN L170 areAnnotationChecker]: L521 has no Hoare annotation [2020-07-28 18:58:23,897 WARN L170 areAnnotationChecker]: L761-2 has no Hoare annotation [2020-07-28 18:58:23,898 WARN L170 areAnnotationChecker]: L653-2 has no Hoare annotation [2020-07-28 18:58:23,898 WARN L170 areAnnotationChecker]: L653-2 has no Hoare annotation [2020-07-28 18:58:23,898 WARN L170 areAnnotationChecker]: L602-2 has no Hoare annotation [2020-07-28 18:58:23,898 WARN L170 areAnnotationChecker]: L657 has no Hoare annotation [2020-07-28 18:58:23,898 WARN L170 areAnnotationChecker]: L657 has no Hoare annotation [2020-07-28 18:58:23,898 WARN L170 areAnnotationChecker]: L920-1 has no Hoare annotation [2020-07-28 18:58:23,899 WARN L170 areAnnotationChecker]: L706 has no Hoare annotation [2020-07-28 18:58:23,899 WARN L170 areAnnotationChecker]: L631-2 has no Hoare annotation [2020-07-28 18:58:23,899 WARN L170 areAnnotationChecker]: L631-2 has no Hoare annotation [2020-07-28 18:58:23,899 WARN L170 areAnnotationChecker]: L875-4 has no Hoare annotation [2020-07-28 18:58:23,899 WARN L170 areAnnotationChecker]: L627-5 has no Hoare annotation [2020-07-28 18:58:23,899 WARN L170 areAnnotationChecker]: L627-5 has no Hoare annotation [2020-07-28 18:58:23,899 WARN L170 areAnnotationChecker]: L875-5 has no Hoare annotation [2020-07-28 18:58:23,900 WARN L170 areAnnotationChecker]: L627 has no Hoare annotation [2020-07-28 18:58:23,900 WARN L170 areAnnotationChecker]: L627 has no Hoare annotation [2020-07-28 18:58:23,900 WARN L170 areAnnotationChecker]: L755-3 has no Hoare annotation [2020-07-28 18:58:23,900 WARN L170 areAnnotationChecker]: L755-3 has no Hoare annotation [2020-07-28 18:58:23,900 WARN L170 areAnnotationChecker]: L525 has no Hoare annotation [2020-07-28 18:58:23,900 WARN L170 areAnnotationChecker]: L525 has no Hoare annotation [2020-07-28 18:58:23,901 WARN L170 areAnnotationChecker]: L697-2 has no Hoare annotation [2020-07-28 18:58:23,901 WARN L170 areAnnotationChecker]: L915-5 has no Hoare annotation [2020-07-28 18:58:23,901 WARN L170 areAnnotationChecker]: L915-5 has no Hoare annotation [2020-07-28 18:58:23,901 WARN L170 areAnnotationChecker]: L521-4 has no Hoare annotation [2020-07-28 18:58:23,901 WARN L170 areAnnotationChecker]: L521-4 has no Hoare annotation [2020-07-28 18:58:23,901 WARN L170 areAnnotationChecker]: L915 has no Hoare annotation [2020-07-28 18:58:23,901 WARN L170 areAnnotationChecker]: L915 has no Hoare annotation [2020-07-28 18:58:23,902 WARN L170 areAnnotationChecker]: L755-5 has no Hoare annotation [2020-07-28 18:58:23,902 WARN L170 areAnnotationChecker]: L543 has no Hoare annotation [2020-07-28 18:58:23,902 WARN L170 areAnnotationChecker]: L543 has no Hoare annotation [2020-07-28 18:58:23,902 WARN L170 areAnnotationChecker]: L657-2 has no Hoare annotation [2020-07-28 18:58:23,902 WARN L170 areAnnotationChecker]: L657-2 has no Hoare annotation [2020-07-28 18:58:23,902 WARN L170 areAnnotationChecker]: L920-5 has no Hoare annotation [2020-07-28 18:58:23,903 WARN L170 areAnnotationChecker]: L706-2 has no Hoare annotation [2020-07-28 18:58:23,903 WARN L170 areAnnotationChecker]: L521-5 has no Hoare annotation [2020-07-28 18:58:23,903 WARN L170 areAnnotationChecker]: L920 has no Hoare annotation [2020-07-28 18:58:23,903 WARN L170 areAnnotationChecker]: L761-1 has no Hoare annotation [2020-07-28 18:58:23,903 WARN L170 areAnnotationChecker]: L627-4 has no Hoare annotation [2020-07-28 18:58:23,903 WARN L170 areAnnotationChecker]: L627-4 has no Hoare annotation [2020-07-28 18:58:23,903 WARN L170 areAnnotationChecker]: L755-15 has no Hoare annotation [2020-07-28 18:58:23,904 WARN L170 areAnnotationChecker]: L755-15 has no Hoare annotation [2020-07-28 18:58:23,904 WARN L170 areAnnotationChecker]: L525-4 has no Hoare annotation [2020-07-28 18:58:23,904 WARN L170 areAnnotationChecker]: L525-4 has no Hoare annotation [2020-07-28 18:58:23,904 WARN L170 areAnnotationChecker]: L755 has no Hoare annotation [2020-07-28 18:58:23,904 WARN L170 areAnnotationChecker]: L755 has no Hoare annotation [2020-07-28 18:58:23,904 WARN L170 areAnnotationChecker]: L631-1 has no Hoare annotation [2020-07-28 18:58:23,904 WARN L170 areAnnotationChecker]: L631-1 has no Hoare annotation [2020-07-28 18:58:23,905 WARN L170 areAnnotationChecker]: L915-4 has no Hoare annotation [2020-07-28 18:58:23,905 WARN L170 areAnnotationChecker]: L915-4 has no Hoare annotation [2020-07-28 18:58:23,905 WARN L170 areAnnotationChecker]: L755-17 has no Hoare annotation [2020-07-28 18:58:23,905 WARN L170 areAnnotationChecker]: L543-2 has no Hoare annotation [2020-07-28 18:58:23,905 WARN L170 areAnnotationChecker]: L543-2 has no Hoare annotation [2020-07-28 18:58:23,905 WARN L170 areAnnotationChecker]: L755-2 has no Hoare annotation [2020-07-28 18:58:23,906 WARN L170 areAnnotationChecker]: L920-4 has no Hoare annotation [2020-07-28 18:58:23,906 WARN L170 areAnnotationChecker]: L761-5 has no Hoare annotation [2020-07-28 18:58:23,906 WARN L170 areAnnotationChecker]: L761 has no Hoare annotation [2020-07-28 18:58:23,906 WARN L170 areAnnotationChecker]: L755-12 has no Hoare annotation [2020-07-28 18:58:23,906 WARN L170 areAnnotationChecker]: L755-12 has no Hoare annotation [2020-07-28 18:58:23,906 WARN L170 areAnnotationChecker]: L631-5 has no Hoare annotation [2020-07-28 18:58:23,906 WARN L170 areAnnotationChecker]: L631-5 has no Hoare annotation [2020-07-28 18:58:23,907 WARN L170 areAnnotationChecker]: L631 has no Hoare annotation [2020-07-28 18:58:23,907 WARN L170 areAnnotationChecker]: L631 has no Hoare annotation [2020-07-28 18:58:23,907 WARN L170 areAnnotationChecker]: L755-14 has no Hoare annotation [2020-07-28 18:58:23,907 WARN L170 areAnnotationChecker]: L761-4 has no Hoare annotation [2020-07-28 18:58:23,907 WARN L170 areAnnotationChecker]: L631-4 has no Hoare annotation [2020-07-28 18:58:23,907 WARN L170 areAnnotationChecker]: L631-4 has no Hoare annotation [2020-07-28 18:58:23,908 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 18:58:23,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:58:23 BoogieIcfgContainer [2020-07-28 18:58:23,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:58:23,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:58:23,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:58:23,913 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:58:23,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:58:13" (3/4) ... [2020-07-28 18:58:23,916 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 18:58:24,098 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:58:24,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:58:24,101 INFO L168 Benchmark]: Toolchain (without parser) took 13370.46 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 285.7 MB). Free memory was 960.2 MB in the beginning and 808.4 MB in the end (delta: 151.8 MB). Peak memory consumption was 437.5 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:24,102 INFO L168 Benchmark]: CDTParser took 1.00 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 18:58:24,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -108.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:24,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:24,103 INFO L168 Benchmark]: Boogie Preprocessor took 80.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:58:24,103 INFO L168 Benchmark]: RCFGBuilder took 1636.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 895.0 MB in the end (delta: 167.3 MB). Peak memory consumption was 167.3 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:24,103 INFO L168 Benchmark]: TraceAbstraction took 10713.64 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 895.0 MB in the beginning and 837.1 MB in the end (delta: 57.9 MB). Peak memory consumption was 248.2 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:24,104 INFO L168 Benchmark]: Witness Printer took 185.54 ms. Allocated memory is still 1.3 GB. Free memory was 837.1 MB in the beginning and 808.4 MB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:58:24,106 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 1.00 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 636.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -108.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 109.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1636.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 895.0 MB in the end (delta: 167.3 MB). Peak memory consumption was 167.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10713.64 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 895.0 MB in the beginning and 837.1 MB in the end (delta: 57.9 MB). Peak memory consumption was 248.2 MB. Max. memory is 11.5 GB. * Witness Printer took 185.54 ms. Allocated memory is still 1.3 GB. Free memory was 837.1 MB in the beginning and 808.4 MB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L487] int retValue_acc ; [L488] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L776] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L778] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L784] tmp = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L850] COND TRUE waterLevel < 2 [L851] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L862] COND FALSE !(\read(methaneLevelCritical)) [L865] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) [L650] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L653] COND FALSE !(\read(pumpRunning)) [L624] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L627] COND TRUE ! pumpRunning [L747] int retValue_acc ; [L748] int tmp ; [L749] int tmp___0 ; [L912] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L915] COND FALSE !(waterLevel < 2) [L919] retValue_acc = 0 [L920] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L753] tmp = isHighWaterSensorDry() [L755] COND FALSE !(\read(tmp)) [L758] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L760] retValue_acc = tmp___0 [L761] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] tmp = isHighWaterLevel() [L631] COND TRUE \read(tmp) [L678] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L514] int tmp ; [L515] int tmp___0 ; [L871] int retValue_acc ; [L874] retValue_acc = methaneLevelCritical [L875] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L519] tmp = isMethaneLevelCritical() [L521] COND TRUE \read(tmp) [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L523] tmp___0 = isPumpRunning() [L525] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L543] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 787 SDtfs, 820 SDslu, 959 SDs, 0 SdLazy, 146 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 428 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 15069 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...