./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_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_spec4_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 903a1f53bc072e1ab483040d7a35aae5e2bdf412 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 19:03:28,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 19:03:28,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 19:03:28,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 19:03:28,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 19:03:28,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 19:03:28,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 19:03:28,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 19:03:28,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 19:03:28,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 19:03:28,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 19:03:28,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 19:03:28,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 19:03:28,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 19:03:28,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 19:03:28,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 19:03:28,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 19:03:28,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 19:03:28,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 19:03:28,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 19:03:28,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 19:03:28,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 19:03:28,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 19:03:28,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 19:03:28,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 19:03:28,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 19:03:28,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 19:03:28,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 19:03:28,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 19:03:28,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 19:03:28,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 19:03:28,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 19:03:28,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 19:03:28,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 19:03:28,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 19:03:28,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 19:03:28,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 19:03:28,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 19:03:28,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 19:03:28,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 19:03:28,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 19:03:28,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 19:03:28,199 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 19:03:28,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 19:03:28,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 19:03:28,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 19:03:28,202 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 19:03:28,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 19:03:28,202 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 19:03:28,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 19:03:28,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 19:03:28,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 19:03:28,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 19:03:28,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 19:03:28,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 19:03:28,204 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 19:03:28,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 19:03:28,205 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 19:03:28,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 19:03:28,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 19:03:28,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 19:03:28,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 19:03:28,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 19:03:28,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 19:03:28,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 19:03:28,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 19:03:28,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 19:03:28,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 19:03:28,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 19:03:28,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 19:03:28,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 19:03:28,209 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 -> 903a1f53bc072e1ab483040d7a35aae5e2bdf412 [2020-07-28 19:03:28,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 19:03:28,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 19:03:28,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 19:03:28,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 19:03:28,576 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 19:03:28,576 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2020-07-28 19:03:28,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd087927/b33b1142e0ec4162981894662009ce68/FLAGb734ee3a9 [2020-07-28 19:03:29,251 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 19:03:29,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2020-07-28 19:03:29,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd087927/b33b1142e0ec4162981894662009ce68/FLAGb734ee3a9 [2020-07-28 19:03:29,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd087927/b33b1142e0ec4162981894662009ce68 [2020-07-28 19:03:29,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 19:03:29,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 19:03:29,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 19:03:29,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 19:03:29,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 19:03:29,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f2f3ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:29, skipping insertion in model container [2020-07-28 19:03:29,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:03:29" (1/1) ... [2020-07-28 19:03:29,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 19:03:29,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 19:03:29,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:03:29,976 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 19:03:30,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:03:30,126 INFO L208 MainTranslator]: Completed translation [2020-07-28 19:03:30,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30 WrapperNode [2020-07-28 19:03:30,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 19:03:30,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 19:03:30,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 19:03:30,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 19:03:30,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 19:03:30,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 19:03:30,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 19:03:30,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 19:03:30,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... [2020-07-28 19:03:30,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 19:03:30,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 19:03:30,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 19:03:30,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 19:03:30,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 19:03:30,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 19:03:30,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 19:03:30,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 19:03:30,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 19:03:31,849 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 19:03:31,849 INFO L295 CfgBuilder]: Removed 156 assume(true) statements. [2020-07-28 19:03:31,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:03:31 BoogieIcfgContainer [2020-07-28 19:03:31,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 19:03:31,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 19:03:31,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 19:03:31,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 19:03:31,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 07:03:29" (1/3) ... [2020-07-28 19:03:31,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2a502e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:03:31, skipping insertion in model container [2020-07-28 19:03:31,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:03:30" (2/3) ... [2020-07-28 19:03:31,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2a502e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:03:31, skipping insertion in model container [2020-07-28 19:03:31,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:03:31" (3/3) ... [2020-07-28 19:03:31,866 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2020-07-28 19:03:31,877 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 19:03:31,886 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 19:03:31,902 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 19:03:31,929 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 19:03:31,930 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 19:03:31,930 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 19:03:31,932 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 19:03:31,934 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 19:03:31,935 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 19:03:31,935 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 19:03:31,935 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 19:03:31,953 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-07-28 19:03:31,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 19:03:31,959 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:31,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:31,961 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:31,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:31,966 INFO L82 PathProgramCache]: Analyzing trace with hash 2109695399, now seen corresponding path program 1 times [2020-07-28 19:03:31,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:31,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139347474] [2020-07-28 19:03:31,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:32,313 INFO L280 TraceCheckUtils]: 0: Hoare triple {114#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {114#true} is VALID [2020-07-28 19:03:32,313 INFO L280 TraceCheckUtils]: 1: Hoare triple {114#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {114#true} is VALID [2020-07-28 19:03:32,314 INFO L280 TraceCheckUtils]: 2: Hoare triple {114#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {114#true} is VALID [2020-07-28 19:03:32,315 INFO L280 TraceCheckUtils]: 3: Hoare triple {114#true} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {114#true} is VALID [2020-07-28 19:03:32,315 INFO L280 TraceCheckUtils]: 4: Hoare triple {114#true} assume 0 != main_~tmp~4; {114#true} is VALID [2020-07-28 19:03:32,316 INFO L280 TraceCheckUtils]: 5: Hoare triple {114#true} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {114#true} is VALID [2020-07-28 19:03:32,317 INFO L280 TraceCheckUtils]: 6: Hoare triple {114#true} assume !true; {115#false} is VALID [2020-07-28 19:03:32,318 INFO L280 TraceCheckUtils]: 7: Hoare triple {115#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {115#false} is VALID [2020-07-28 19:03:32,318 INFO L280 TraceCheckUtils]: 8: Hoare triple {115#false} assume !(0 != ~pumpRunning~0); {115#false} is VALID [2020-07-28 19:03:32,319 INFO L280 TraceCheckUtils]: 9: Hoare triple {115#false} assume !(0 != ~systemActive~0); {115#false} is VALID [2020-07-28 19:03:32,319 INFO L280 TraceCheckUtils]: 10: Hoare triple {115#false} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {115#false} is VALID [2020-07-28 19:03:32,320 INFO L280 TraceCheckUtils]: 11: Hoare triple {115#false} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {115#false} is VALID [2020-07-28 19:03:32,320 INFO L280 TraceCheckUtils]: 12: Hoare triple {115#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {115#false} is VALID [2020-07-28 19:03:32,321 INFO L280 TraceCheckUtils]: 13: Hoare triple {115#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {115#false} is VALID [2020-07-28 19:03:32,321 INFO L280 TraceCheckUtils]: 14: Hoare triple {115#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {115#false} is VALID [2020-07-28 19:03:32,321 INFO L280 TraceCheckUtils]: 15: Hoare triple {115#false} assume !false; {115#false} is VALID [2020-07-28 19:03:32,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:32,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139347474] [2020-07-28 19:03:32,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:32,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:03:32,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238254820] [2020-07-28 19:03:32,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 19:03:32,338 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:32,342 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 19:03:32,384 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:32,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 19:03:32,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:32,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 19:03:32,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 19:03:32,398 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2020-07-28 19:03:32,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:32,681 INFO L93 Difference]: Finished difference Result 216 states and 329 transitions. [2020-07-28 19:03:32,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 19:03:32,681 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 19:03:32,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:32,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:03:32,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 329 transitions. [2020-07-28 19:03:32,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:03:32,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 329 transitions. [2020-07-28 19:03:32,708 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 329 transitions. [2020-07-28 19:03:33,166 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 329 edges. 329 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:33,190 INFO L225 Difference]: With dead ends: 216 [2020-07-28 19:03:33,194 INFO L226 Difference]: Without dead ends: 107 [2020-07-28 19:03:33,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 19:03:33,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-28 19:03:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-07-28 19:03:33,269 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:33,270 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 107 states. [2020-07-28 19:03:33,271 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 107 states. [2020-07-28 19:03:33,271 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 107 states. [2020-07-28 19:03:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,280 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-07-28 19:03:33,280 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-07-28 19:03:33,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:33,282 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:33,282 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 107 states. [2020-07-28 19:03:33,282 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 107 states. [2020-07-28 19:03:33,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,323 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-07-28 19:03:33,323 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-07-28 19:03:33,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:33,324 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:33,324 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:33,325 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:33,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-28 19:03:33,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-07-28 19:03:33,334 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 16 [2020-07-28 19:03:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:33,334 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-07-28 19:03:33,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 19:03:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-07-28 19:03:33,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 19:03:33,336 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:33,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:33,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 19:03:33,337 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:33,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:33,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1093063509, now seen corresponding path program 1 times [2020-07-28 19:03:33,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:33,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676310059] [2020-07-28 19:03:33,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:33,490 INFO L280 TraceCheckUtils]: 0: Hoare triple {776#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {776#true} is VALID [2020-07-28 19:03:33,490 INFO L280 TraceCheckUtils]: 1: Hoare triple {776#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {776#true} is VALID [2020-07-28 19:03:33,491 INFO L280 TraceCheckUtils]: 2: Hoare triple {776#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {776#true} is VALID [2020-07-28 19:03:33,491 INFO L280 TraceCheckUtils]: 3: Hoare triple {776#true} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {776#true} is VALID [2020-07-28 19:03:33,492 INFO L280 TraceCheckUtils]: 4: Hoare triple {776#true} assume 0 != main_~tmp~4; {776#true} is VALID [2020-07-28 19:03:33,493 INFO L280 TraceCheckUtils]: 5: Hoare triple {776#true} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {778#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:03:33,493 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 19:03:33,494 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 19:03:33,495 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 19:03:33,495 INFO L280 TraceCheckUtils]: 9: Hoare triple {777#false} assume !(0 != ~pumpRunning~0); {777#false} is VALID [2020-07-28 19:03:33,495 INFO L280 TraceCheckUtils]: 10: Hoare triple {777#false} assume !(0 != ~systemActive~0); {777#false} is VALID [2020-07-28 19:03:33,496 INFO L280 TraceCheckUtils]: 11: Hoare triple {777#false} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {777#false} is VALID [2020-07-28 19:03:33,496 INFO L280 TraceCheckUtils]: 12: Hoare triple {777#false} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {777#false} is VALID [2020-07-28 19:03:33,496 INFO L280 TraceCheckUtils]: 13: Hoare triple {777#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {777#false} is VALID [2020-07-28 19:03:33,496 INFO L280 TraceCheckUtils]: 14: Hoare triple {777#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {777#false} is VALID [2020-07-28 19:03:33,497 INFO L280 TraceCheckUtils]: 15: Hoare triple {777#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {777#false} is VALID [2020-07-28 19:03:33,497 INFO L280 TraceCheckUtils]: 16: Hoare triple {777#false} assume !false; {777#false} is VALID [2020-07-28 19:03:33,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:33,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676310059] [2020-07-28 19:03:33,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:33,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:03:33,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126907001] [2020-07-28 19:03:33,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 19:03:33,501 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:33,502 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:03:33,533 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:33,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:03:33,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:33,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:03:33,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:33,535 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 3 states. [2020-07-28 19:03:33,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:33,787 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-07-28 19:03:33,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:03:33,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 19:03:33,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:33,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:33,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2020-07-28 19:03:33,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2020-07-28 19:03:33,794 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 156 transitions. [2020-07-28 19:03:33,983 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 156 edges. 156 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:33,984 INFO L225 Difference]: With dead ends: 107 [2020-07-28 19:03:33,985 INFO L226 Difference]: Without dead ends: 45 [2020-07-28 19:03:33,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:33,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-28 19:03:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-07-28 19:03:34,002 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:34,002 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,003 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,003 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,005 INFO L93 Difference]: Finished difference Result 45 states and 65 transitions. [2020-07-28 19:03:34,005 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-07-28 19:03:34,006 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:34,006 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:34,006 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,006 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,009 INFO L93 Difference]: Finished difference Result 45 states and 65 transitions. [2020-07-28 19:03:34,009 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-07-28 19:03:34,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:34,010 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:34,010 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:34,010 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:34,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-28 19:03:34,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2020-07-28 19:03:34,012 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 17 [2020-07-28 19:03:34,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:34,013 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2020-07-28 19:03:34,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:03:34,013 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-07-28 19:03:34,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 19:03:34,014 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:34,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:34,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 19:03:34,015 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:34,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:34,015 INFO L82 PathProgramCache]: Analyzing trace with hash -720159228, now seen corresponding path program 1 times [2020-07-28 19:03:34,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:34,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220239311] [2020-07-28 19:03:34,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:34,116 INFO L280 TraceCheckUtils]: 0: Hoare triple {1079#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,117 INFO L280 TraceCheckUtils]: 1: Hoare triple {1081#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,117 INFO L280 TraceCheckUtils]: 2: Hoare triple {1081#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,118 INFO L280 TraceCheckUtils]: 3: Hoare triple {1081#(= 1 ~systemActive~0)} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,119 INFO L280 TraceCheckUtils]: 4: Hoare triple {1081#(= 1 ~systemActive~0)} assume 0 != main_~tmp~4; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,119 INFO L280 TraceCheckUtils]: 5: Hoare triple {1081#(= 1 ~systemActive~0)} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,120 INFO L280 TraceCheckUtils]: 6: Hoare triple {1081#(= 1 ~systemActive~0)} assume !false; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,120 INFO L280 TraceCheckUtils]: 7: Hoare triple {1081#(= 1 ~systemActive~0)} assume test_~splverifierCounter~0 < 4; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,121 INFO L280 TraceCheckUtils]: 8: Hoare triple {1081#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,121 INFO L280 TraceCheckUtils]: 9: Hoare triple {1081#(= 1 ~systemActive~0)} assume !(0 != test_~tmp~0); {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,122 INFO L280 TraceCheckUtils]: 10: Hoare triple {1081#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,123 INFO L280 TraceCheckUtils]: 11: Hoare triple {1081#(= 1 ~systemActive~0)} assume !(0 != test_~tmp___0~0); {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,124 INFO L280 TraceCheckUtils]: 12: Hoare triple {1081#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,126 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 19:03:34,126 INFO L280 TraceCheckUtils]: 14: Hoare triple {1081#(= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {1081#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:34,127 INFO L280 TraceCheckUtils]: 15: Hoare triple {1081#(= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {1080#false} is VALID [2020-07-28 19:03:34,128 INFO L280 TraceCheckUtils]: 16: Hoare triple {1080#false} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {1080#false} is VALID [2020-07-28 19:03:34,128 INFO L280 TraceCheckUtils]: 17: Hoare triple {1080#false} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {1080#false} is VALID [2020-07-28 19:03:34,129 INFO L280 TraceCheckUtils]: 18: Hoare triple {1080#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {1080#false} is VALID [2020-07-28 19:03:34,129 INFO L280 TraceCheckUtils]: 19: Hoare triple {1080#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {1080#false} is VALID [2020-07-28 19:03:34,129 INFO L280 TraceCheckUtils]: 20: Hoare triple {1080#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {1080#false} is VALID [2020-07-28 19:03:34,130 INFO L280 TraceCheckUtils]: 21: Hoare triple {1080#false} assume !false; {1080#false} is VALID [2020-07-28 19:03:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:34,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220239311] [2020-07-28 19:03:34,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:34,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:03:34,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093260590] [2020-07-28 19:03:34,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-28 19:03:34,141 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:34,141 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:03:34,184 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:34,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:03:34,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:34,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:03:34,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:34,185 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand 3 states. [2020-07-28 19:03:34,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,323 INFO L93 Difference]: Finished difference Result 84 states and 124 transitions. [2020-07-28 19:03:34,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:03:34,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-28 19:03:34,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:34,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:34,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2020-07-28 19:03:34,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:34,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2020-07-28 19:03:34,329 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 124 transitions. [2020-07-28 19:03:34,476 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:34,479 INFO L225 Difference]: With dead ends: 84 [2020-07-28 19:03:34,480 INFO L226 Difference]: Without dead ends: 45 [2020-07-28 19:03:34,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:34,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-28 19:03:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-07-28 19:03:34,517 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:34,517 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,518 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,518 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,522 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2020-07-28 19:03:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-07-28 19:03:34,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:34,522 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:34,523 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,523 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 19:03:34,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,532 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2020-07-28 19:03:34,532 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-07-28 19:03:34,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:34,535 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:34,535 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:34,535 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:34,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-28 19:03:34,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-07-28 19:03:34,541 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 22 [2020-07-28 19:03:34,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:34,541 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-07-28 19:03:34,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:03:34,542 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-07-28 19:03:34,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 19:03:34,543 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:34,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:34,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 19:03:34,543 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:34,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:34,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2091202829, now seen corresponding path program 1 times [2020-07-28 19:03:34,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:34,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706371756] [2020-07-28 19:03:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:34,683 INFO L280 TraceCheckUtils]: 0: Hoare triple {1348#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,686 INFO L280 TraceCheckUtils]: 1: Hoare triple {1350#(= 0 ~pumpRunning~0)} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,687 INFO L280 TraceCheckUtils]: 2: Hoare triple {1350#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,688 INFO L280 TraceCheckUtils]: 3: Hoare triple {1350#(= 0 ~pumpRunning~0)} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,689 INFO L280 TraceCheckUtils]: 4: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~4; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,689 INFO L280 TraceCheckUtils]: 5: Hoare triple {1350#(= 0 ~pumpRunning~0)} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,691 INFO L280 TraceCheckUtils]: 6: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !false; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,692 INFO L280 TraceCheckUtils]: 7: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,692 INFO L280 TraceCheckUtils]: 8: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,693 INFO L280 TraceCheckUtils]: 9: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~0); {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,693 INFO L280 TraceCheckUtils]: 10: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,694 INFO L280 TraceCheckUtils]: 11: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~0); {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,694 INFO L280 TraceCheckUtils]: 12: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,695 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 19:03:34,695 INFO L280 TraceCheckUtils]: 14: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,696 INFO L280 TraceCheckUtils]: 15: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,696 INFO L280 TraceCheckUtils]: 16: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {1350#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:34,696 INFO L280 TraceCheckUtils]: 17: Hoare triple {1350#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1349#false} is VALID [2020-07-28 19:03:34,697 INFO L280 TraceCheckUtils]: 18: Hoare triple {1349#false} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {1349#false} is VALID [2020-07-28 19:03:34,697 INFO L280 TraceCheckUtils]: 19: Hoare triple {1349#false} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {1349#false} is VALID [2020-07-28 19:03:34,697 INFO L280 TraceCheckUtils]: 20: Hoare triple {1349#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {1349#false} is VALID [2020-07-28 19:03:34,697 INFO L280 TraceCheckUtils]: 21: Hoare triple {1349#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {1349#false} is VALID [2020-07-28 19:03:34,698 INFO L280 TraceCheckUtils]: 22: Hoare triple {1349#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {1349#false} is VALID [2020-07-28 19:03:34,698 INFO L280 TraceCheckUtils]: 23: Hoare triple {1349#false} assume !false; {1349#false} is VALID [2020-07-28 19:03:34,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:34,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706371756] [2020-07-28 19:03:34,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:34,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:03:34,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488184746] [2020-07-28 19:03:34,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 19:03:34,700 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:34,700 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:03:34,739 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:34,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:03:34,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:34,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:03:34,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:34,740 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2020-07-28 19:03:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:34,970 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2020-07-28 19:03:34,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:03:34,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 19:03:34,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:34,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:34,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2020-07-28 19:03:34,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:03:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2020-07-28 19:03:34,977 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 152 transitions. [2020-07-28 19:03:35,150 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 152 edges. 152 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:35,153 INFO L225 Difference]: With dead ends: 105 [2020-07-28 19:03:35,153 INFO L226 Difference]: Without dead ends: 66 [2020-07-28 19:03:35,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:03:35,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-28 19:03:35,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-07-28 19:03:35,199 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:35,199 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states. Second operand 64 states. [2020-07-28 19:03:35,200 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 64 states. [2020-07-28 19:03:35,200 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 64 states. [2020-07-28 19:03:35,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,202 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2020-07-28 19:03:35,203 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2020-07-28 19:03:35,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:35,203 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:35,203 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 66 states. [2020-07-28 19:03:35,203 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 66 states. [2020-07-28 19:03:35,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:35,206 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2020-07-28 19:03:35,206 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2020-07-28 19:03:35,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:35,207 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:35,207 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:35,207 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:35,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-28 19:03:35,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2020-07-28 19:03:35,210 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 24 [2020-07-28 19:03:35,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:35,210 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2020-07-28 19:03:35,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:03:35,210 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2020-07-28 19:03:35,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-28 19:03:35,211 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:35,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:35,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 19:03:35,212 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:35,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:35,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1013899842, now seen corresponding path program 1 times [2020-07-28 19:03:35,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:35,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689462240] [2020-07-28 19:03:35,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:35,284 INFO L280 TraceCheckUtils]: 0: Hoare triple {1713#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {1713#true} is VALID [2020-07-28 19:03:35,284 INFO L280 TraceCheckUtils]: 1: Hoare triple {1713#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {1713#true} is VALID [2020-07-28 19:03:35,284 INFO L280 TraceCheckUtils]: 2: Hoare triple {1713#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {1713#true} is VALID [2020-07-28 19:03:35,285 INFO L280 TraceCheckUtils]: 3: Hoare triple {1713#true} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {1713#true} is VALID [2020-07-28 19:03:35,285 INFO L280 TraceCheckUtils]: 4: Hoare triple {1713#true} assume 0 != main_~tmp~4; {1713#true} is VALID [2020-07-28 19:03:35,285 INFO L280 TraceCheckUtils]: 5: Hoare triple {1713#true} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1713#true} is VALID [2020-07-28 19:03:35,286 INFO L280 TraceCheckUtils]: 6: Hoare triple {1713#true} assume !false; {1713#true} is VALID [2020-07-28 19:03:35,286 INFO L280 TraceCheckUtils]: 7: Hoare triple {1713#true} assume test_~splverifierCounter~0 < 4; {1713#true} is VALID [2020-07-28 19:03:35,286 INFO L280 TraceCheckUtils]: 8: Hoare triple {1713#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {1713#true} is VALID [2020-07-28 19:03:35,286 INFO L280 TraceCheckUtils]: 9: Hoare triple {1713#true} assume !(0 != test_~tmp~0); {1713#true} is VALID [2020-07-28 19:03:35,287 INFO L280 TraceCheckUtils]: 10: Hoare triple {1713#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {1713#true} is VALID [2020-07-28 19:03:35,287 INFO L280 TraceCheckUtils]: 11: Hoare triple {1713#true} assume !(0 != test_~tmp___0~0); {1713#true} is VALID [2020-07-28 19:03:35,287 INFO L280 TraceCheckUtils]: 12: Hoare triple {1713#true} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {1713#true} is VALID [2020-07-28 19:03:35,287 INFO L280 TraceCheckUtils]: 13: Hoare triple {1713#true} assume 0 != test_~tmp___2~0; {1713#true} is VALID [2020-07-28 19:03:35,288 INFO L280 TraceCheckUtils]: 14: Hoare triple {1713#true} assume !(0 != ~pumpRunning~0); {1713#true} is VALID [2020-07-28 19:03:35,288 INFO L280 TraceCheckUtils]: 15: Hoare triple {1713#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {1713#true} is VALID [2020-07-28 19:03:35,288 INFO L280 TraceCheckUtils]: 16: Hoare triple {1713#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {1713#true} is VALID [2020-07-28 19:03:35,288 INFO L280 TraceCheckUtils]: 17: Hoare triple {1713#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {1713#true} is VALID [2020-07-28 19:03:35,289 INFO L280 TraceCheckUtils]: 18: Hoare triple {1713#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {1713#true} is VALID [2020-07-28 19:03:35,289 INFO L280 TraceCheckUtils]: 19: Hoare triple {1713#true} isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret24 && isHighWaterLevel_#t~ret24 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; {1713#true} is VALID [2020-07-28 19:03:35,290 INFO L280 TraceCheckUtils]: 20: Hoare triple {1713#true} assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; {1715#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1)} is VALID [2020-07-28 19:03:35,291 INFO L280 TraceCheckUtils]: 21: Hoare triple {1715#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1)} isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; {1716#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} is VALID [2020-07-28 19:03:35,292 INFO L280 TraceCheckUtils]: 22: Hoare triple {1716#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret5 && processEnvironment__wrappee__highWaterSensor_#t~ret5 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; {1717#(= 0 ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1)} is VALID [2020-07-28 19:03:35,293 INFO L280 TraceCheckUtils]: 23: Hoare triple {1717#(= 0 ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1)} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~1;~pumpRunning~0 := 1; {1714#false} is VALID [2020-07-28 19:03:35,293 INFO L280 TraceCheckUtils]: 24: Hoare triple {1714#false} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {1714#false} is VALID [2020-07-28 19:03:35,293 INFO L280 TraceCheckUtils]: 25: Hoare triple {1714#false} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {1714#false} is VALID [2020-07-28 19:03:35,294 INFO L280 TraceCheckUtils]: 26: Hoare triple {1714#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {1714#false} is VALID [2020-07-28 19:03:35,294 INFO L280 TraceCheckUtils]: 27: Hoare triple {1714#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {1714#false} is VALID [2020-07-28 19:03:35,294 INFO L280 TraceCheckUtils]: 28: Hoare triple {1714#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {1714#false} is VALID [2020-07-28 19:03:35,294 INFO L280 TraceCheckUtils]: 29: Hoare triple {1714#false} assume !false; {1714#false} is VALID [2020-07-28 19:03:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:35,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689462240] [2020-07-28 19:03:35,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:35,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:35,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732953303] [2020-07-28 19:03:35,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 19:03:35,297 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:35,297 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:03:35,333 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:35,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:03:35,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:35,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:03:35,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:35,334 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 5 states. [2020-07-28 19:03:36,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:36,010 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2020-07-28 19:03:36,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 19:03:36,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 19:03:36,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2020-07-28 19:03:36,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:36,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2020-07-28 19:03:36,018 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 185 transitions. [2020-07-28 19:03:36,247 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:36,251 INFO L225 Difference]: With dead ends: 171 [2020-07-28 19:03:36,251 INFO L226 Difference]: Without dead ends: 113 [2020-07-28 19:03:36,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 19:03:36,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-07-28 19:03:36,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 70. [2020-07-28 19:03:36,327 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:36,327 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 70 states. [2020-07-28 19:03:36,327 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 70 states. [2020-07-28 19:03:36,327 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 70 states. [2020-07-28 19:03:36,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:36,333 INFO L93 Difference]: Finished difference Result 113 states and 153 transitions. [2020-07-28 19:03:36,333 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 153 transitions. [2020-07-28 19:03:36,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:36,334 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:36,334 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 113 states. [2020-07-28 19:03:36,334 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 113 states. [2020-07-28 19:03:36,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:36,341 INFO L93 Difference]: Finished difference Result 113 states and 153 transitions. [2020-07-28 19:03:36,341 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 153 transitions. [2020-07-28 19:03:36,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:36,341 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:36,342 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:36,342 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-28 19:03:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2020-07-28 19:03:36,345 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 30 [2020-07-28 19:03:36,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:36,346 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2020-07-28 19:03:36,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:03:36,346 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2020-07-28 19:03:36,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-28 19:03:36,347 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:36,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:36,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 19:03:36,347 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:36,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:36,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1648611201, now seen corresponding path program 1 times [2020-07-28 19:03:36,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:36,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118228742] [2020-07-28 19:03:36,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:36,443 INFO L280 TraceCheckUtils]: 0: Hoare triple {2277#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,444 INFO L280 TraceCheckUtils]: 1: Hoare triple {2279#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,445 INFO L280 TraceCheckUtils]: 2: Hoare triple {2279#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,445 INFO L280 TraceCheckUtils]: 3: Hoare triple {2279#(= 1 ~waterLevel~0)} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,446 INFO L280 TraceCheckUtils]: 4: Hoare triple {2279#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~4; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,446 INFO L280 TraceCheckUtils]: 5: Hoare triple {2279#(= 1 ~waterLevel~0)} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,447 INFO L280 TraceCheckUtils]: 6: Hoare triple {2279#(= 1 ~waterLevel~0)} assume !false; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,448 INFO L280 TraceCheckUtils]: 7: Hoare triple {2279#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,449 INFO L280 TraceCheckUtils]: 8: Hoare triple {2279#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,449 INFO L280 TraceCheckUtils]: 9: Hoare triple {2279#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp~0); {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,450 INFO L280 TraceCheckUtils]: 10: Hoare triple {2279#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,452 INFO L280 TraceCheckUtils]: 11: Hoare triple {2279#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,454 INFO L280 TraceCheckUtils]: 12: Hoare triple {2279#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,455 INFO L280 TraceCheckUtils]: 13: Hoare triple {2279#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___2~0; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,458 INFO L280 TraceCheckUtils]: 14: Hoare triple {2279#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,460 INFO L280 TraceCheckUtils]: 15: Hoare triple {2279#(= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,461 INFO L280 TraceCheckUtils]: 16: Hoare triple {2279#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,461 INFO L280 TraceCheckUtils]: 17: Hoare triple {2279#(= 1 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,462 INFO L280 TraceCheckUtils]: 18: Hoare triple {2279#(= 1 ~waterLevel~0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,463 INFO L280 TraceCheckUtils]: 19: Hoare triple {2279#(= 1 ~waterLevel~0)} isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret24 && isHighWaterLevel_#t~ret24 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,464 INFO L280 TraceCheckUtils]: 20: Hoare triple {2279#(= 1 ~waterLevel~0)} assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,465 INFO L280 TraceCheckUtils]: 21: Hoare triple {2279#(= 1 ~waterLevel~0)} isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,465 INFO L280 TraceCheckUtils]: 22: Hoare triple {2279#(= 1 ~waterLevel~0)} processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret5 && processEnvironment__wrappee__highWaterSensor_#t~ret5 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,466 INFO L280 TraceCheckUtils]: 23: Hoare triple {2279#(= 1 ~waterLevel~0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); {2279#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:36,467 INFO L280 TraceCheckUtils]: 24: Hoare triple {2279#(= 1 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {2280#(= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:36,468 INFO L280 TraceCheckUtils]: 25: Hoare triple {2280#(= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {2281#(= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8)} is VALID [2020-07-28 19:03:36,469 INFO L280 TraceCheckUtils]: 26: Hoare triple {2281#(= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {2278#false} is VALID [2020-07-28 19:03:36,469 INFO L280 TraceCheckUtils]: 27: Hoare triple {2278#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {2278#false} is VALID [2020-07-28 19:03:36,470 INFO L280 TraceCheckUtils]: 28: Hoare triple {2278#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {2278#false} is VALID [2020-07-28 19:03:36,470 INFO L280 TraceCheckUtils]: 29: Hoare triple {2278#false} assume !false; {2278#false} is VALID [2020-07-28 19:03:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:36,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118228742] [2020-07-28 19:03:36,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:36,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 19:03:36,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523051321] [2020-07-28 19:03:36,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 19:03:36,494 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:36,494 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:03:36,536 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:36,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:03:36,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:36,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:03:36,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:36,538 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 5 states. [2020-07-28 19:03:37,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:37,229 INFO L93 Difference]: Finished difference Result 247 states and 346 transitions. [2020-07-28 19:03:37,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 19:03:37,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-28 19:03:37,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:37,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:37,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 231 transitions. [2020-07-28 19:03:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 231 transitions. [2020-07-28 19:03:37,237 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 231 transitions. [2020-07-28 19:03:37,514 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 231 edges. 231 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:37,517 INFO L225 Difference]: With dead ends: 247 [2020-07-28 19:03:37,517 INFO L226 Difference]: Without dead ends: 183 [2020-07-28 19:03:37,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 19:03:37,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-07-28 19:03:37,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 113. [2020-07-28 19:03:37,640 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:37,640 INFO L82 GeneralOperation]: Start isEquivalent. First operand 183 states. Second operand 113 states. [2020-07-28 19:03:37,640 INFO L74 IsIncluded]: Start isIncluded. First operand 183 states. Second operand 113 states. [2020-07-28 19:03:37,640 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 113 states. [2020-07-28 19:03:37,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:37,647 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2020-07-28 19:03:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 248 transitions. [2020-07-28 19:03:37,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:37,648 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:37,648 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 183 states. [2020-07-28 19:03:37,648 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 183 states. [2020-07-28 19:03:37,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:37,654 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2020-07-28 19:03:37,654 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 248 transitions. [2020-07-28 19:03:37,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:37,655 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:37,655 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:37,655 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-28 19:03:37,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 152 transitions. [2020-07-28 19:03:37,659 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 152 transitions. Word has length 30 [2020-07-28 19:03:37,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:37,659 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 152 transitions. [2020-07-28 19:03:37,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:03:37,659 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 152 transitions. [2020-07-28 19:03:37,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-28 19:03:37,663 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:37,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:37,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 19:03:37,664 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:37,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:37,664 INFO L82 PathProgramCache]: Analyzing trace with hash -359204993, now seen corresponding path program 1 times [2020-07-28 19:03:37,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:37,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790219729] [2020-07-28 19:03:37,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:37,757 INFO L280 TraceCheckUtils]: 0: Hoare triple {3141#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {3143#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,758 INFO L280 TraceCheckUtils]: 1: Hoare triple {3143#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {3143#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,759 INFO L280 TraceCheckUtils]: 2: Hoare triple {3143#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {3143#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,759 INFO L280 TraceCheckUtils]: 3: Hoare triple {3143#(= 1 ~waterLevel~0)} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {3143#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,760 INFO L280 TraceCheckUtils]: 4: Hoare triple {3143#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~4; {3143#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,761 INFO L280 TraceCheckUtils]: 5: Hoare triple {3143#(= 1 ~waterLevel~0)} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {3143#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,761 INFO L280 TraceCheckUtils]: 6: Hoare triple {3143#(= 1 ~waterLevel~0)} assume !false; {3143#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,762 INFO L280 TraceCheckUtils]: 7: Hoare triple {3143#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {3143#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,762 INFO L280 TraceCheckUtils]: 8: Hoare triple {3143#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {3143#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,763 INFO L280 TraceCheckUtils]: 9: Hoare triple {3143#(= 1 ~waterLevel~0)} assume 0 != test_~tmp~0; {3143#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,764 INFO L280 TraceCheckUtils]: 10: Hoare triple {3143#(= 1 ~waterLevel~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {3144#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,765 INFO L280 TraceCheckUtils]: 11: Hoare triple {3144#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {3144#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,765 INFO L280 TraceCheckUtils]: 12: Hoare triple {3144#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {3144#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,766 INFO L280 TraceCheckUtils]: 13: Hoare triple {3144#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {3144#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,766 INFO L280 TraceCheckUtils]: 14: Hoare triple {3144#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0; {3144#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,767 INFO L280 TraceCheckUtils]: 15: Hoare triple {3144#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {3144#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,767 INFO L280 TraceCheckUtils]: 16: Hoare triple {3144#(<= 2 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {3144#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,768 INFO L280 TraceCheckUtils]: 17: Hoare triple {3144#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {3144#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,769 INFO L280 TraceCheckUtils]: 18: Hoare triple {3144#(<= 2 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {3144#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:37,770 INFO L280 TraceCheckUtils]: 19: Hoare triple {3144#(<= 2 ~waterLevel~0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {3142#false} is VALID [2020-07-28 19:03:37,770 INFO L280 TraceCheckUtils]: 20: Hoare triple {3142#false} isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret24 && isHighWaterLevel_#t~ret24 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; {3142#false} is VALID [2020-07-28 19:03:37,770 INFO L280 TraceCheckUtils]: 21: Hoare triple {3142#false} assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; {3142#false} is VALID [2020-07-28 19:03:37,770 INFO L280 TraceCheckUtils]: 22: Hoare triple {3142#false} isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; {3142#false} is VALID [2020-07-28 19:03:37,770 INFO L280 TraceCheckUtils]: 23: Hoare triple {3142#false} processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret5 && processEnvironment__wrappee__highWaterSensor_#t~ret5 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; {3142#false} is VALID [2020-07-28 19:03:37,771 INFO L280 TraceCheckUtils]: 24: Hoare triple {3142#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); {3142#false} is VALID [2020-07-28 19:03:37,771 INFO L280 TraceCheckUtils]: 25: Hoare triple {3142#false} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {3142#false} is VALID [2020-07-28 19:03:37,771 INFO L280 TraceCheckUtils]: 26: Hoare triple {3142#false} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {3142#false} is VALID [2020-07-28 19:03:37,771 INFO L280 TraceCheckUtils]: 27: Hoare triple {3142#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {3142#false} is VALID [2020-07-28 19:03:37,772 INFO L280 TraceCheckUtils]: 28: Hoare triple {3142#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {3142#false} is VALID [2020-07-28 19:03:37,772 INFO L280 TraceCheckUtils]: 29: Hoare triple {3142#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {3142#false} is VALID [2020-07-28 19:03:37,772 INFO L280 TraceCheckUtils]: 30: Hoare triple {3142#false} assume !false; {3142#false} is VALID [2020-07-28 19:03:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:37,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790219729] [2020-07-28 19:03:37,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:37,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:03:37,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001329581] [2020-07-28 19:03:37,775 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-07-28 19:03:37,775 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:37,775 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 19:03:37,815 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:37,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 19:03:37,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:37,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 19:03:37,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 19:03:37,816 INFO L87 Difference]: Start difference. First operand 113 states and 152 transitions. Second operand 4 states. [2020-07-28 19:03:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:38,449 INFO L93 Difference]: Finished difference Result 234 states and 321 transitions. [2020-07-28 19:03:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 19:03:38,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-07-28 19:03:38,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:03:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2020-07-28 19:03:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:03:38,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2020-07-28 19:03:38,455 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 201 transitions. [2020-07-28 19:03:38,681 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:38,684 INFO L225 Difference]: With dead ends: 234 [2020-07-28 19:03:38,684 INFO L226 Difference]: Without dead ends: 170 [2020-07-28 19:03:38,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 19:03:38,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-07-28 19:03:38,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2020-07-28 19:03:38,905 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:38,905 INFO L82 GeneralOperation]: Start isEquivalent. First operand 170 states. Second operand 167 states. [2020-07-28 19:03:38,905 INFO L74 IsIncluded]: Start isIncluded. First operand 170 states. Second operand 167 states. [2020-07-28 19:03:38,905 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 167 states. [2020-07-28 19:03:38,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:38,920 INFO L93 Difference]: Finished difference Result 170 states and 227 transitions. [2020-07-28 19:03:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 227 transitions. [2020-07-28 19:03:38,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:38,921 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:38,922 INFO L74 IsIncluded]: Start isIncluded. First operand 167 states. Second operand 170 states. [2020-07-28 19:03:38,922 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 170 states. [2020-07-28 19:03:38,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:38,932 INFO L93 Difference]: Finished difference Result 170 states and 227 transitions. [2020-07-28 19:03:38,932 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 227 transitions. [2020-07-28 19:03:38,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:38,933 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:38,933 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:38,934 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:38,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-28 19:03:38,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 225 transitions. [2020-07-28 19:03:38,940 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 225 transitions. Word has length 31 [2020-07-28 19:03:38,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:38,940 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 225 transitions. [2020-07-28 19:03:38,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 19:03:38,940 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 225 transitions. [2020-07-28 19:03:38,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-28 19:03:38,941 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:38,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:38,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 19:03:38,942 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:38,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:38,942 INFO L82 PathProgramCache]: Analyzing trace with hash -101039555, now seen corresponding path program 1 times [2020-07-28 19:03:38,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:38,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479287488] [2020-07-28 19:03:38,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:39,004 INFO L280 TraceCheckUtils]: 0: Hoare triple {4026#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {4026#true} is VALID [2020-07-28 19:03:39,004 INFO L280 TraceCheckUtils]: 1: Hoare triple {4026#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {4026#true} is VALID [2020-07-28 19:03:39,005 INFO L280 TraceCheckUtils]: 2: Hoare triple {4026#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {4026#true} is VALID [2020-07-28 19:03:39,005 INFO L280 TraceCheckUtils]: 3: Hoare triple {4026#true} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {4026#true} is VALID [2020-07-28 19:03:39,005 INFO L280 TraceCheckUtils]: 4: Hoare triple {4026#true} assume 0 != main_~tmp~4; {4026#true} is VALID [2020-07-28 19:03:39,006 INFO L280 TraceCheckUtils]: 5: Hoare triple {4026#true} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {4026#true} is VALID [2020-07-28 19:03:39,006 INFO L280 TraceCheckUtils]: 6: Hoare triple {4026#true} assume !false; {4026#true} is VALID [2020-07-28 19:03:39,006 INFO L280 TraceCheckUtils]: 7: Hoare triple {4026#true} assume test_~splverifierCounter~0 < 4; {4026#true} is VALID [2020-07-28 19:03:39,006 INFO L280 TraceCheckUtils]: 8: Hoare triple {4026#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {4026#true} is VALID [2020-07-28 19:03:39,006 INFO L280 TraceCheckUtils]: 9: Hoare triple {4026#true} assume 0 != test_~tmp~0; {4026#true} is VALID [2020-07-28 19:03:39,007 INFO L280 TraceCheckUtils]: 10: Hoare triple {4026#true} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {4026#true} is VALID [2020-07-28 19:03:39,007 INFO L280 TraceCheckUtils]: 11: Hoare triple {4026#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {4026#true} is VALID [2020-07-28 19:03:39,007 INFO L280 TraceCheckUtils]: 12: Hoare triple {4026#true} assume !(0 != test_~tmp___0~0); {4026#true} is VALID [2020-07-28 19:03:39,007 INFO L280 TraceCheckUtils]: 13: Hoare triple {4026#true} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {4026#true} is VALID [2020-07-28 19:03:39,007 INFO L280 TraceCheckUtils]: 14: Hoare triple {4026#true} assume 0 != test_~tmp___2~0; {4026#true} is VALID [2020-07-28 19:03:39,008 INFO L280 TraceCheckUtils]: 15: Hoare triple {4026#true} assume !(0 != ~pumpRunning~0); {4026#true} is VALID [2020-07-28 19:03:39,008 INFO L280 TraceCheckUtils]: 16: Hoare triple {4026#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {4026#true} is VALID [2020-07-28 19:03:39,008 INFO L280 TraceCheckUtils]: 17: Hoare triple {4026#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {4026#true} is VALID [2020-07-28 19:03:39,009 INFO L280 TraceCheckUtils]: 18: Hoare triple {4026#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {4026#true} is VALID [2020-07-28 19:03:39,010 INFO L280 TraceCheckUtils]: 19: Hoare triple {4026#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {4028#(= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|)} is VALID [2020-07-28 19:03:39,011 INFO L280 TraceCheckUtils]: 20: Hoare triple {4028#(= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|)} isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret24 && isHighWaterLevel_#t~ret24 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; {4029#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp~3)} is VALID [2020-07-28 19:03:39,012 INFO L280 TraceCheckUtils]: 21: Hoare triple {4029#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp~3)} assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; {4027#false} is VALID [2020-07-28 19:03:39,012 INFO L280 TraceCheckUtils]: 22: Hoare triple {4027#false} isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; {4027#false} is VALID [2020-07-28 19:03:39,012 INFO L280 TraceCheckUtils]: 23: Hoare triple {4027#false} processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret5 && processEnvironment__wrappee__highWaterSensor_#t~ret5 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; {4027#false} is VALID [2020-07-28 19:03:39,013 INFO L280 TraceCheckUtils]: 24: Hoare triple {4027#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); {4027#false} is VALID [2020-07-28 19:03:39,013 INFO L280 TraceCheckUtils]: 25: Hoare triple {4027#false} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {4027#false} is VALID [2020-07-28 19:03:39,013 INFO L280 TraceCheckUtils]: 26: Hoare triple {4027#false} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {4027#false} is VALID [2020-07-28 19:03:39,014 INFO L280 TraceCheckUtils]: 27: Hoare triple {4027#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {4027#false} is VALID [2020-07-28 19:03:39,014 INFO L280 TraceCheckUtils]: 28: Hoare triple {4027#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {4027#false} is VALID [2020-07-28 19:03:39,014 INFO L280 TraceCheckUtils]: 29: Hoare triple {4027#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {4027#false} is VALID [2020-07-28 19:03:39,014 INFO L280 TraceCheckUtils]: 30: Hoare triple {4027#false} assume !false; {4027#false} is VALID [2020-07-28 19:03:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:39,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479287488] [2020-07-28 19:03:39,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:39,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 19:03:39,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613730334] [2020-07-28 19:03:39,017 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-07-28 19:03:39,017 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:39,017 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 19:03:39,057 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:39,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 19:03:39,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:39,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 19:03:39,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 19:03:39,058 INFO L87 Difference]: Start difference. First operand 167 states and 225 transitions. Second operand 4 states. [2020-07-28 19:03:39,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:39,987 INFO L93 Difference]: Finished difference Result 394 states and 542 transitions. [2020-07-28 19:03:39,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 19:03:39,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-07-28 19:03:39,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:03:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2020-07-28 19:03:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:03:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2020-07-28 19:03:39,991 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 208 transitions. [2020-07-28 19:03:40,231 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:40,237 INFO L225 Difference]: With dead ends: 394 [2020-07-28 19:03:40,238 INFO L226 Difference]: Without dead ends: 275 [2020-07-28 19:03:40,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:40,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-07-28 19:03:40,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 161. [2020-07-28 19:03:40,422 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:40,422 INFO L82 GeneralOperation]: Start isEquivalent. First operand 275 states. Second operand 161 states. [2020-07-28 19:03:40,422 INFO L74 IsIncluded]: Start isIncluded. First operand 275 states. Second operand 161 states. [2020-07-28 19:03:40,422 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 161 states. [2020-07-28 19:03:40,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:40,430 INFO L93 Difference]: Finished difference Result 275 states and 376 transitions. [2020-07-28 19:03:40,430 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 376 transitions. [2020-07-28 19:03:40,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:40,431 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:40,431 INFO L74 IsIncluded]: Start isIncluded. First operand 161 states. Second operand 275 states. [2020-07-28 19:03:40,431 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 275 states. [2020-07-28 19:03:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:40,438 INFO L93 Difference]: Finished difference Result 275 states and 376 transitions. [2020-07-28 19:03:40,438 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 376 transitions. [2020-07-28 19:03:40,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:40,439 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:40,439 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:40,439 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:40,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-07-28 19:03:40,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 217 transitions. [2020-07-28 19:03:40,443 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 217 transitions. Word has length 31 [2020-07-28 19:03:40,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:40,443 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 217 transitions. [2020-07-28 19:03:40,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 19:03:40,443 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 217 transitions. [2020-07-28 19:03:40,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-28 19:03:40,444 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:40,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:40,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 19:03:40,445 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:40,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:40,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1138389688, now seen corresponding path program 1 times [2020-07-28 19:03:40,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:40,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397913213] [2020-07-28 19:03:40,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:40,566 INFO L280 TraceCheckUtils]: 0: Hoare triple {5330#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {5332#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,567 INFO L280 TraceCheckUtils]: 1: Hoare triple {5332#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {5332#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,568 INFO L280 TraceCheckUtils]: 2: Hoare triple {5332#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {5332#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,568 INFO L280 TraceCheckUtils]: 3: Hoare triple {5332#(= 1 ~waterLevel~0)} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {5332#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,574 INFO L280 TraceCheckUtils]: 4: Hoare triple {5332#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~4; {5332#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,575 INFO L280 TraceCheckUtils]: 5: Hoare triple {5332#(= 1 ~waterLevel~0)} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {5332#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,575 INFO L280 TraceCheckUtils]: 6: Hoare triple {5332#(= 1 ~waterLevel~0)} assume !false; {5332#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,576 INFO L280 TraceCheckUtils]: 7: Hoare triple {5332#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {5332#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,577 INFO L280 TraceCheckUtils]: 8: Hoare triple {5332#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {5332#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,577 INFO L280 TraceCheckUtils]: 9: Hoare triple {5332#(= 1 ~waterLevel~0)} assume 0 != test_~tmp~0; {5332#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,578 INFO L280 TraceCheckUtils]: 10: Hoare triple {5332#(= 1 ~waterLevel~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,578 INFO L280 TraceCheckUtils]: 11: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,579 INFO L280 TraceCheckUtils]: 12: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,580 INFO L280 TraceCheckUtils]: 13: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,580 INFO L280 TraceCheckUtils]: 14: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,581 INFO L280 TraceCheckUtils]: 15: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,581 INFO L280 TraceCheckUtils]: 16: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,582 INFO L280 TraceCheckUtils]: 17: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,584 INFO L280 TraceCheckUtils]: 18: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,584 INFO L280 TraceCheckUtils]: 19: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,585 INFO L280 TraceCheckUtils]: 20: Hoare triple {5333#(<= 2 ~waterLevel~0)} isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret24 && isHighWaterLevel_#t~ret24 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,586 INFO L280 TraceCheckUtils]: 21: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume !(0 != isHighWaterLevel_~tmp~3);isHighWaterLevel_~tmp___0~1 := 1; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,586 INFO L280 TraceCheckUtils]: 22: Hoare triple {5333#(<= 2 ~waterLevel~0)} isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,587 INFO L280 TraceCheckUtils]: 23: Hoare triple {5333#(<= 2 ~waterLevel~0)} processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret5 && processEnvironment__wrappee__highWaterSensor_#t~ret5 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,587 INFO L280 TraceCheckUtils]: 24: Hoare triple {5333#(<= 2 ~waterLevel~0)} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~1;~pumpRunning~0 := 1; {5333#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:40,588 INFO L280 TraceCheckUtils]: 25: Hoare triple {5333#(<= 2 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {5334#(<= 2 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:40,589 INFO L280 TraceCheckUtils]: 26: Hoare triple {5334#(<= 2 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {5335#(<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8)} is VALID [2020-07-28 19:03:40,590 INFO L280 TraceCheckUtils]: 27: Hoare triple {5335#(<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {5331#false} is VALID [2020-07-28 19:03:40,590 INFO L280 TraceCheckUtils]: 28: Hoare triple {5331#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {5331#false} is VALID [2020-07-28 19:03:40,590 INFO L280 TraceCheckUtils]: 29: Hoare triple {5331#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {5331#false} is VALID [2020-07-28 19:03:40,590 INFO L280 TraceCheckUtils]: 30: Hoare triple {5331#false} assume !false; {5331#false} is VALID [2020-07-28 19:03:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:40,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397913213] [2020-07-28 19:03:40,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:40,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:40,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591672555] [2020-07-28 19:03:40,595 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-07-28 19:03:40,595 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:40,595 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 19:03:40,637 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:40,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 19:03:40,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:40,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 19:03:40,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-28 19:03:40,638 INFO L87 Difference]: Start difference. First operand 161 states and 217 transitions. Second operand 6 states. [2020-07-28 19:03:41,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:41,815 INFO L93 Difference]: Finished difference Result 329 states and 446 transitions. [2020-07-28 19:03:41,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 19:03:41,816 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-07-28 19:03:41,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:41,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 19:03:41,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 251 transitions. [2020-07-28 19:03:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 19:03:41,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 251 transitions. [2020-07-28 19:03:41,821 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 251 transitions. [2020-07-28 19:03:42,130 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 251 edges. 251 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:42,136 INFO L225 Difference]: With dead ends: 329 [2020-07-28 19:03:42,137 INFO L226 Difference]: Without dead ends: 216 [2020-07-28 19:03:42,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-07-28 19:03:42,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-07-28 19:03:42,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 157. [2020-07-28 19:03:42,356 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:42,356 INFO L82 GeneralOperation]: Start isEquivalent. First operand 216 states. Second operand 157 states. [2020-07-28 19:03:42,357 INFO L74 IsIncluded]: Start isIncluded. First operand 216 states. Second operand 157 states. [2020-07-28 19:03:42,357 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 157 states. [2020-07-28 19:03:42,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:42,362 INFO L93 Difference]: Finished difference Result 216 states and 288 transitions. [2020-07-28 19:03:42,362 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 288 transitions. [2020-07-28 19:03:42,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:42,363 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:42,363 INFO L74 IsIncluded]: Start isIncluded. First operand 157 states. Second operand 216 states. [2020-07-28 19:03:42,364 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 216 states. [2020-07-28 19:03:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:42,369 INFO L93 Difference]: Finished difference Result 216 states and 288 transitions. [2020-07-28 19:03:42,369 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 288 transitions. [2020-07-28 19:03:42,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:42,370 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:42,370 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:42,370 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-07-28 19:03:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 209 transitions. [2020-07-28 19:03:42,374 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 209 transitions. Word has length 31 [2020-07-28 19:03:42,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:42,374 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 209 transitions. [2020-07-28 19:03:42,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 19:03:42,375 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 209 transitions. [2020-07-28 19:03:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-28 19:03:42,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:42,376 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:42,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 19:03:42,376 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:42,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:42,377 INFO L82 PathProgramCache]: Analyzing trace with hash 2043138488, now seen corresponding path program 1 times [2020-07-28 19:03:42,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:42,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262669139] [2020-07-28 19:03:42,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:42,455 INFO L280 TraceCheckUtils]: 0: Hoare triple {6431#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,459 INFO L280 TraceCheckUtils]: 1: Hoare triple {6433#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,461 INFO L280 TraceCheckUtils]: 2: Hoare triple {6433#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,462 INFO L280 TraceCheckUtils]: 3: Hoare triple {6433#(= 1 ~systemActive~0)} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,463 INFO L280 TraceCheckUtils]: 4: Hoare triple {6433#(= 1 ~systemActive~0)} assume 0 != main_~tmp~4; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,464 INFO L280 TraceCheckUtils]: 5: Hoare triple {6433#(= 1 ~systemActive~0)} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,464 INFO L280 TraceCheckUtils]: 6: Hoare triple {6433#(= 1 ~systemActive~0)} assume !false; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,465 INFO L280 TraceCheckUtils]: 7: Hoare triple {6433#(= 1 ~systemActive~0)} assume test_~splverifierCounter~0 < 4; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,466 INFO L280 TraceCheckUtils]: 8: Hoare triple {6433#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,466 INFO L280 TraceCheckUtils]: 9: Hoare triple {6433#(= 1 ~systemActive~0)} assume !(0 != test_~tmp~0); {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,467 INFO L280 TraceCheckUtils]: 10: Hoare triple {6433#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,468 INFO L280 TraceCheckUtils]: 11: Hoare triple {6433#(= 1 ~systemActive~0)} assume !(0 != test_~tmp___0~0); {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,469 INFO L280 TraceCheckUtils]: 12: Hoare triple {6433#(= 1 ~systemActive~0)} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,469 INFO L280 TraceCheckUtils]: 13: Hoare triple {6433#(= 1 ~systemActive~0)} assume 0 != test_~tmp___2~0; {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,470 INFO L280 TraceCheckUtils]: 14: Hoare triple {6433#(= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {6433#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:03:42,470 INFO L280 TraceCheckUtils]: 15: Hoare triple {6433#(= 1 ~systemActive~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {6431#true} is VALID [2020-07-28 19:03:42,470 INFO L280 TraceCheckUtils]: 16: Hoare triple {6431#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {6431#true} is VALID [2020-07-28 19:03:42,471 INFO L280 TraceCheckUtils]: 17: Hoare triple {6431#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {6431#true} is VALID [2020-07-28 19:03:42,472 INFO L280 TraceCheckUtils]: 18: Hoare triple {6431#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {6434#(not (= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|))} is VALID [2020-07-28 19:03:42,473 INFO L280 TraceCheckUtils]: 19: Hoare triple {6434#(not (= 0 |ULTIMATE.start_isHighWaterSensorDry_#res|))} isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret24 && isHighWaterLevel_#t~ret24 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; {6435#(not (= 0 ULTIMATE.start_isHighWaterLevel_~tmp~3))} is VALID [2020-07-28 19:03:42,473 INFO L280 TraceCheckUtils]: 20: Hoare triple {6435#(not (= 0 ULTIMATE.start_isHighWaterLevel_~tmp~3))} assume !(0 != isHighWaterLevel_~tmp~3);isHighWaterLevel_~tmp___0~1 := 1; {6432#false} is VALID [2020-07-28 19:03:42,474 INFO L280 TraceCheckUtils]: 21: Hoare triple {6432#false} isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; {6432#false} is VALID [2020-07-28 19:03:42,474 INFO L280 TraceCheckUtils]: 22: Hoare triple {6432#false} processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret5 && processEnvironment__wrappee__highWaterSensor_#t~ret5 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; {6432#false} is VALID [2020-07-28 19:03:42,474 INFO L280 TraceCheckUtils]: 23: Hoare triple {6432#false} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~1;~pumpRunning~0 := 1; {6432#false} is VALID [2020-07-28 19:03:42,475 INFO L280 TraceCheckUtils]: 24: Hoare triple {6432#false} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {6432#false} is VALID [2020-07-28 19:03:42,475 INFO L280 TraceCheckUtils]: 25: Hoare triple {6432#false} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {6432#false} is VALID [2020-07-28 19:03:42,475 INFO L280 TraceCheckUtils]: 26: Hoare triple {6432#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); {6432#false} is VALID [2020-07-28 19:03:42,475 INFO L280 TraceCheckUtils]: 27: Hoare triple {6432#false} assume !false; {6432#false} is VALID [2020-07-28 19:03:42,475 INFO L280 TraceCheckUtils]: 28: Hoare triple {6432#false} assume test_~splverifierCounter~0 < 4; {6432#false} is VALID [2020-07-28 19:03:42,476 INFO L280 TraceCheckUtils]: 29: Hoare triple {6432#false} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {6432#false} is VALID [2020-07-28 19:03:42,476 INFO L280 TraceCheckUtils]: 30: Hoare triple {6432#false} assume !(0 != test_~tmp~0); {6432#false} is VALID [2020-07-28 19:03:42,476 INFO L280 TraceCheckUtils]: 31: Hoare triple {6432#false} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {6432#false} is VALID [2020-07-28 19:03:42,476 INFO L280 TraceCheckUtils]: 32: Hoare triple {6432#false} assume !(0 != test_~tmp___0~0); {6432#false} is VALID [2020-07-28 19:03:42,476 INFO L280 TraceCheckUtils]: 33: Hoare triple {6432#false} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {6432#false} is VALID [2020-07-28 19:03:42,477 INFO L280 TraceCheckUtils]: 34: Hoare triple {6432#false} assume 0 != test_~tmp___2~0; {6432#false} is VALID [2020-07-28 19:03:42,477 INFO L280 TraceCheckUtils]: 35: Hoare triple {6432#false} assume 0 != ~pumpRunning~0; {6432#false} is VALID [2020-07-28 19:03:42,477 INFO L280 TraceCheckUtils]: 36: Hoare triple {6432#false} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {6432#false} is VALID [2020-07-28 19:03:42,478 INFO L280 TraceCheckUtils]: 37: Hoare triple {6432#false} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {6432#false} is VALID [2020-07-28 19:03:42,478 INFO L280 TraceCheckUtils]: 38: Hoare triple {6432#false} assume 0 != ~pumpRunning~0;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret7, isMethaneAlarm_~retValue_acc~2;havoc isMethaneAlarm_~retValue_acc~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {6432#false} is VALID [2020-07-28 19:03:42,478 INFO L280 TraceCheckUtils]: 39: Hoare triple {6432#false} isMethaneAlarm_#t~ret7 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret7 && isMethaneAlarm_#t~ret7 <= 2147483647;isMethaneAlarm_~retValue_acc~2 := isMethaneAlarm_#t~ret7;havoc isMethaneAlarm_#t~ret7;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~2; {6432#false} is VALID [2020-07-28 19:03:42,479 INFO L280 TraceCheckUtils]: 40: Hoare triple {6432#false} processEnvironment_#t~ret6 := isMethaneAlarm_#res;assume -2147483648 <= processEnvironment_#t~ret6 && processEnvironment_#t~ret6 <= 2147483647;processEnvironment_~tmp~2 := processEnvironment_#t~ret6;havoc processEnvironment_#t~ret6; {6432#false} is VALID [2020-07-28 19:03:42,479 INFO L280 TraceCheckUtils]: 41: Hoare triple {6432#false} assume 0 != processEnvironment_~tmp~2;~pumpRunning~0 := 0; {6432#false} is VALID [2020-07-28 19:03:42,479 INFO L280 TraceCheckUtils]: 42: Hoare triple {6432#false} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {6432#false} is VALID [2020-07-28 19:03:42,479 INFO L280 TraceCheckUtils]: 43: Hoare triple {6432#false} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {6432#false} is VALID [2020-07-28 19:03:42,479 INFO L280 TraceCheckUtils]: 44: Hoare triple {6432#false} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {6432#false} is VALID [2020-07-28 19:03:42,480 INFO L280 TraceCheckUtils]: 45: Hoare triple {6432#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {6432#false} is VALID [2020-07-28 19:03:42,480 INFO L280 TraceCheckUtils]: 46: Hoare triple {6432#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {6432#false} is VALID [2020-07-28 19:03:42,480 INFO L280 TraceCheckUtils]: 47: Hoare triple {6432#false} assume !false; {6432#false} is VALID [2020-07-28 19:03:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-28 19:03:42,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262669139] [2020-07-28 19:03:42,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:42,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:42,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460753108] [2020-07-28 19:03:42,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-07-28 19:03:42,485 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:42,485 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:03:42,541 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:42,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:03:42,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:42,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:03:42,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:42,542 INFO L87 Difference]: Start difference. First operand 157 states and 209 transitions. Second operand 5 states. [2020-07-28 19:03:43,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:43,312 INFO L93 Difference]: Finished difference Result 331 states and 442 transitions. [2020-07-28 19:03:43,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 19:03:43,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-07-28 19:03:43,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:43,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:43,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 159 transitions. [2020-07-28 19:03:43,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:43,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 159 transitions. [2020-07-28 19:03:43,317 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 159 transitions. [2020-07-28 19:03:43,528 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 159 edges. 159 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:43,533 INFO L225 Difference]: With dead ends: 331 [2020-07-28 19:03:43,533 INFO L226 Difference]: Without dead ends: 180 [2020-07-28 19:03:43,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 19:03:43,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-07-28 19:03:43,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 133. [2020-07-28 19:03:43,725 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:43,725 INFO L82 GeneralOperation]: Start isEquivalent. First operand 180 states. Second operand 133 states. [2020-07-28 19:03:43,725 INFO L74 IsIncluded]: Start isIncluded. First operand 180 states. Second operand 133 states. [2020-07-28 19:03:43,725 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 133 states. [2020-07-28 19:03:43,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:43,730 INFO L93 Difference]: Finished difference Result 180 states and 236 transitions. [2020-07-28 19:03:43,730 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 236 transitions. [2020-07-28 19:03:43,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:43,731 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:43,731 INFO L74 IsIncluded]: Start isIncluded. First operand 133 states. Second operand 180 states. [2020-07-28 19:03:43,731 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 180 states. [2020-07-28 19:03:43,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:43,735 INFO L93 Difference]: Finished difference Result 180 states and 236 transitions. [2020-07-28 19:03:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 236 transitions. [2020-07-28 19:03:43,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:43,736 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:43,736 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:43,737 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:43,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-28 19:03:43,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 173 transitions. [2020-07-28 19:03:43,741 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 173 transitions. Word has length 48 [2020-07-28 19:03:43,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:43,741 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 173 transitions. [2020-07-28 19:03:43,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:03:43,742 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 173 transitions. [2020-07-28 19:03:43,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-28 19:03:43,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:43,743 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:43,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 19:03:43,744 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:43,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:43,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1197109900, now seen corresponding path program 1 times [2020-07-28 19:03:43,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:43,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025232280] [2020-07-28 19:03:43,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:43,866 INFO L280 TraceCheckUtils]: 0: Hoare triple {7424#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {7424#true} is VALID [2020-07-28 19:03:43,867 INFO L280 TraceCheckUtils]: 1: Hoare triple {7424#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {7424#true} is VALID [2020-07-28 19:03:43,867 INFO L280 TraceCheckUtils]: 2: Hoare triple {7424#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {7424#true} is VALID [2020-07-28 19:03:43,867 INFO L280 TraceCheckUtils]: 3: Hoare triple {7424#true} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {7424#true} is VALID [2020-07-28 19:03:43,867 INFO L280 TraceCheckUtils]: 4: Hoare triple {7424#true} assume 0 != main_~tmp~4; {7424#true} is VALID [2020-07-28 19:03:43,868 INFO L280 TraceCheckUtils]: 5: Hoare triple {7424#true} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {7424#true} is VALID [2020-07-28 19:03:43,868 INFO L280 TraceCheckUtils]: 6: Hoare triple {7424#true} assume !false; {7424#true} is VALID [2020-07-28 19:03:43,868 INFO L280 TraceCheckUtils]: 7: Hoare triple {7424#true} assume test_~splverifierCounter~0 < 4; {7424#true} is VALID [2020-07-28 19:03:43,869 INFO L280 TraceCheckUtils]: 8: Hoare triple {7424#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {7424#true} is VALID [2020-07-28 19:03:43,869 INFO L280 TraceCheckUtils]: 9: Hoare triple {7424#true} assume 0 != test_~tmp~0; {7424#true} is VALID [2020-07-28 19:03:43,869 INFO L280 TraceCheckUtils]: 10: Hoare triple {7424#true} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {7424#true} is VALID [2020-07-28 19:03:43,869 INFO L280 TraceCheckUtils]: 11: Hoare triple {7424#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {7424#true} is VALID [2020-07-28 19:03:43,869 INFO L280 TraceCheckUtils]: 12: Hoare triple {7424#true} assume !(0 != test_~tmp___0~0); {7424#true} is VALID [2020-07-28 19:03:43,870 INFO L280 TraceCheckUtils]: 13: Hoare triple {7424#true} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {7424#true} is VALID [2020-07-28 19:03:43,870 INFO L280 TraceCheckUtils]: 14: Hoare triple {7424#true} assume 0 != test_~tmp___2~0; {7424#true} is VALID [2020-07-28 19:03:43,870 INFO L280 TraceCheckUtils]: 15: Hoare triple {7424#true} assume !(0 != ~pumpRunning~0); {7424#true} is VALID [2020-07-28 19:03:43,871 INFO L280 TraceCheckUtils]: 16: Hoare triple {7424#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {7424#true} is VALID [2020-07-28 19:03:43,871 INFO L280 TraceCheckUtils]: 17: Hoare triple {7424#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {7424#true} is VALID [2020-07-28 19:03:43,871 INFO L280 TraceCheckUtils]: 18: Hoare triple {7424#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {7424#true} is VALID [2020-07-28 19:03:43,871 INFO L280 TraceCheckUtils]: 19: Hoare triple {7424#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {7424#true} is VALID [2020-07-28 19:03:43,871 INFO L280 TraceCheckUtils]: 20: Hoare triple {7424#true} isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret24 && isHighWaterLevel_#t~ret24 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; {7424#true} is VALID [2020-07-28 19:03:43,872 INFO L280 TraceCheckUtils]: 21: Hoare triple {7424#true} assume !(0 != isHighWaterLevel_~tmp~3);isHighWaterLevel_~tmp___0~1 := 1; {7424#true} is VALID [2020-07-28 19:03:43,872 INFO L280 TraceCheckUtils]: 22: Hoare triple {7424#true} isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; {7424#true} is VALID [2020-07-28 19:03:43,872 INFO L280 TraceCheckUtils]: 23: Hoare triple {7424#true} processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret5 && processEnvironment__wrappee__highWaterSensor_#t~ret5 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; {7424#true} is VALID [2020-07-28 19:03:43,872 INFO L280 TraceCheckUtils]: 24: Hoare triple {7424#true} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~1;~pumpRunning~0 := 1; {7424#true} is VALID [2020-07-28 19:03:43,873 INFO L280 TraceCheckUtils]: 25: Hoare triple {7424#true} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {7424#true} is VALID [2020-07-28 19:03:43,873 INFO L280 TraceCheckUtils]: 26: Hoare triple {7424#true} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {7424#true} is VALID [2020-07-28 19:03:43,873 INFO L280 TraceCheckUtils]: 27: Hoare triple {7424#true} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); {7424#true} is VALID [2020-07-28 19:03:43,874 INFO L280 TraceCheckUtils]: 28: Hoare triple {7424#true} assume !false; {7424#true} is VALID [2020-07-28 19:03:43,874 INFO L280 TraceCheckUtils]: 29: Hoare triple {7424#true} assume test_~splverifierCounter~0 < 4; {7424#true} is VALID [2020-07-28 19:03:43,875 INFO L280 TraceCheckUtils]: 30: Hoare triple {7424#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {7424#true} is VALID [2020-07-28 19:03:43,876 INFO L280 TraceCheckUtils]: 31: Hoare triple {7424#true} assume !(0 != test_~tmp~0); {7424#true} is VALID [2020-07-28 19:03:43,876 INFO L280 TraceCheckUtils]: 32: Hoare triple {7424#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {7424#true} is VALID [2020-07-28 19:03:43,876 INFO L280 TraceCheckUtils]: 33: Hoare triple {7424#true} assume !(0 != test_~tmp___0~0); {7424#true} is VALID [2020-07-28 19:03:43,877 INFO L280 TraceCheckUtils]: 34: Hoare triple {7424#true} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {7424#true} is VALID [2020-07-28 19:03:43,877 INFO L280 TraceCheckUtils]: 35: Hoare triple {7424#true} assume 0 != test_~tmp___2~0; {7424#true} is VALID [2020-07-28 19:03:43,877 INFO L280 TraceCheckUtils]: 36: Hoare triple {7424#true} assume 0 != ~pumpRunning~0; {7424#true} is VALID [2020-07-28 19:03:43,877 INFO L280 TraceCheckUtils]: 37: Hoare triple {7424#true} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {7424#true} is VALID [2020-07-28 19:03:43,878 INFO L280 TraceCheckUtils]: 38: Hoare triple {7424#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {7424#true} is VALID [2020-07-28 19:03:43,878 INFO L280 TraceCheckUtils]: 39: Hoare triple {7424#true} assume 0 != ~pumpRunning~0;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret7, isMethaneAlarm_~retValue_acc~2;havoc isMethaneAlarm_~retValue_acc~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {7424#true} is VALID [2020-07-28 19:03:43,878 INFO L280 TraceCheckUtils]: 40: Hoare triple {7424#true} isMethaneAlarm_#t~ret7 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret7 && isMethaneAlarm_#t~ret7 <= 2147483647;isMethaneAlarm_~retValue_acc~2 := isMethaneAlarm_#t~ret7;havoc isMethaneAlarm_#t~ret7;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~2; {7424#true} is VALID [2020-07-28 19:03:43,878 INFO L280 TraceCheckUtils]: 41: Hoare triple {7424#true} processEnvironment_#t~ret6 := isMethaneAlarm_#res;assume -2147483648 <= processEnvironment_#t~ret6 && processEnvironment_#t~ret6 <= 2147483647;processEnvironment_~tmp~2 := processEnvironment_#t~ret6;havoc processEnvironment_#t~ret6; {7424#true} is VALID [2020-07-28 19:03:43,880 INFO L280 TraceCheckUtils]: 42: Hoare triple {7424#true} assume 0 != processEnvironment_~tmp~2;~pumpRunning~0 := 0; {7426#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:43,880 INFO L280 TraceCheckUtils]: 43: Hoare triple {7426#(= 0 ~pumpRunning~0)} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {7426#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:43,881 INFO L280 TraceCheckUtils]: 44: Hoare triple {7426#(= 0 ~pumpRunning~0)} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {7426#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 19:03:43,882 INFO L280 TraceCheckUtils]: 45: Hoare triple {7426#(= 0 ~pumpRunning~0)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {7427#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} is VALID [2020-07-28 19:03:43,883 INFO L280 TraceCheckUtils]: 46: Hoare triple {7427#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {7428#(= 0 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp___0~2)} is VALID [2020-07-28 19:03:43,883 INFO L280 TraceCheckUtils]: 47: Hoare triple {7428#(= 0 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp___0~2)} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {7425#false} is VALID [2020-07-28 19:03:43,883 INFO L280 TraceCheckUtils]: 48: Hoare triple {7425#false} assume !false; {7425#false} is VALID [2020-07-28 19:03:43,886 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-28 19:03:43,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025232280] [2020-07-28 19:03:43,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:03:43,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:03:43,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398129243] [2020-07-28 19:03:43,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-07-28 19:03:43,887 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:43,888 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:03:43,939 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:43,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:03:43,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:43,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:03:43,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:03:43,940 INFO L87 Difference]: Start difference. First operand 133 states and 173 transitions. Second operand 5 states. [2020-07-28 19:03:45,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:45,177 INFO L93 Difference]: Finished difference Result 332 states and 437 transitions. [2020-07-28 19:03:45,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 19:03:45,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-07-28 19:03:45,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:45,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:45,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 253 transitions. [2020-07-28 19:03:45,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:03:45,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 253 transitions. [2020-07-28 19:03:45,180 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 253 transitions. [2020-07-28 19:03:45,502 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 19:03:45,511 INFO L225 Difference]: With dead ends: 332 [2020-07-28 19:03:45,511 INFO L226 Difference]: Without dead ends: 330 [2020-07-28 19:03:45,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 19:03:45,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-07-28 19:03:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 133. [2020-07-28 19:03:45,787 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:45,787 INFO L82 GeneralOperation]: Start isEquivalent. First operand 330 states. Second operand 133 states. [2020-07-28 19:03:45,787 INFO L74 IsIncluded]: Start isIncluded. First operand 330 states. Second operand 133 states. [2020-07-28 19:03:45,787 INFO L87 Difference]: Start difference. First operand 330 states. Second operand 133 states. [2020-07-28 19:03:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:45,797 INFO L93 Difference]: Finished difference Result 330 states and 435 transitions. [2020-07-28 19:03:45,797 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 435 transitions. [2020-07-28 19:03:45,798 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:45,798 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:45,798 INFO L74 IsIncluded]: Start isIncluded. First operand 133 states. Second operand 330 states. [2020-07-28 19:03:45,799 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 330 states. [2020-07-28 19:03:45,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:45,808 INFO L93 Difference]: Finished difference Result 330 states and 435 transitions. [2020-07-28 19:03:45,809 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 435 transitions. [2020-07-28 19:03:45,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:45,810 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:45,810 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:45,810 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:45,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-28 19:03:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 172 transitions. [2020-07-28 19:03:45,814 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 172 transitions. Word has length 49 [2020-07-28 19:03:45,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:45,814 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 172 transitions. [2020-07-28 19:03:45,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:03:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 172 transitions. [2020-07-28 19:03:45,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-28 19:03:45,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:45,816 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:45,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-28 19:03:45,816 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:45,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:45,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2022214963, now seen corresponding path program 1 times [2020-07-28 19:03:45,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:45,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36771045] [2020-07-28 19:03:45,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:45,934 INFO L280 TraceCheckUtils]: 0: Hoare triple {8728#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {8730#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,935 INFO L280 TraceCheckUtils]: 1: Hoare triple {8730#(= 1 ~waterLevel~0)} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {8730#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,936 INFO L280 TraceCheckUtils]: 2: Hoare triple {8730#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {8730#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,937 INFO L280 TraceCheckUtils]: 3: Hoare triple {8730#(= 1 ~waterLevel~0)} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {8730#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,937 INFO L280 TraceCheckUtils]: 4: Hoare triple {8730#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~4; {8730#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,938 INFO L280 TraceCheckUtils]: 5: Hoare triple {8730#(= 1 ~waterLevel~0)} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {8730#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,938 INFO L280 TraceCheckUtils]: 6: Hoare triple {8730#(= 1 ~waterLevel~0)} assume !false; {8730#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,939 INFO L280 TraceCheckUtils]: 7: Hoare triple {8730#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {8730#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,940 INFO L280 TraceCheckUtils]: 8: Hoare triple {8730#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {8730#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,940 INFO L280 TraceCheckUtils]: 9: Hoare triple {8730#(= 1 ~waterLevel~0)} assume 0 != test_~tmp~0; {8730#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,941 INFO L280 TraceCheckUtils]: 10: Hoare triple {8730#(= 1 ~waterLevel~0)} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,942 INFO L280 TraceCheckUtils]: 11: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,942 INFO L280 TraceCheckUtils]: 12: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,943 INFO L280 TraceCheckUtils]: 13: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,943 INFO L280 TraceCheckUtils]: 14: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,944 INFO L280 TraceCheckUtils]: 15: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,945 INFO L280 TraceCheckUtils]: 16: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,945 INFO L280 TraceCheckUtils]: 17: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,946 INFO L280 TraceCheckUtils]: 18: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,947 INFO L280 TraceCheckUtils]: 19: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,947 INFO L280 TraceCheckUtils]: 20: Hoare triple {8731#(<= 2 ~waterLevel~0)} isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret24 && isHighWaterLevel_#t~ret24 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,948 INFO L280 TraceCheckUtils]: 21: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 != isHighWaterLevel_~tmp~3);isHighWaterLevel_~tmp___0~1 := 1; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,949 INFO L280 TraceCheckUtils]: 22: Hoare triple {8731#(<= 2 ~waterLevel~0)} isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,949 INFO L280 TraceCheckUtils]: 23: Hoare triple {8731#(<= 2 ~waterLevel~0)} processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret5 && processEnvironment__wrappee__highWaterSensor_#t~ret5 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,950 INFO L280 TraceCheckUtils]: 24: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~1;~pumpRunning~0 := 1; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,951 INFO L280 TraceCheckUtils]: 25: Hoare triple {8731#(<= 2 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,951 INFO L280 TraceCheckUtils]: 26: Hoare triple {8731#(<= 2 ~waterLevel~0)} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,952 INFO L280 TraceCheckUtils]: 27: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,953 INFO L280 TraceCheckUtils]: 28: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !false; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,954 INFO L280 TraceCheckUtils]: 29: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,954 INFO L280 TraceCheckUtils]: 30: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,955 INFO L280 TraceCheckUtils]: 31: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp~0); {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,956 INFO L280 TraceCheckUtils]: 32: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,957 INFO L280 TraceCheckUtils]: 33: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,957 INFO L280 TraceCheckUtils]: 34: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,958 INFO L280 TraceCheckUtils]: 35: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,959 INFO L280 TraceCheckUtils]: 36: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume 0 != ~pumpRunning~0; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,960 INFO L280 TraceCheckUtils]: 37: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,961 INFO L280 TraceCheckUtils]: 38: Hoare triple {8732#(<= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,961 INFO L280 TraceCheckUtils]: 39: Hoare triple {8732#(<= 1 ~waterLevel~0)} assume 0 != ~pumpRunning~0;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret7, isMethaneAlarm_~retValue_acc~2;havoc isMethaneAlarm_~retValue_acc~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,962 INFO L280 TraceCheckUtils]: 40: Hoare triple {8732#(<= 1 ~waterLevel~0)} isMethaneAlarm_#t~ret7 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret7 && isMethaneAlarm_#t~ret7 <= 2147483647;isMethaneAlarm_~retValue_acc~2 := isMethaneAlarm_#t~ret7;havoc isMethaneAlarm_#t~ret7;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~2; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,963 INFO L280 TraceCheckUtils]: 41: Hoare triple {8732#(<= 1 ~waterLevel~0)} processEnvironment_#t~ret6 := isMethaneAlarm_#res;assume -2147483648 <= processEnvironment_#t~ret6 && processEnvironment_#t~ret6 <= 2147483647;processEnvironment_~tmp~2 := processEnvironment_#t~ret6;havoc processEnvironment_#t~ret6; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,963 INFO L280 TraceCheckUtils]: 42: Hoare triple {8732#(<= 1 ~waterLevel~0)} assume !(0 != processEnvironment_~tmp~2);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,964 INFO L280 TraceCheckUtils]: 43: Hoare triple {8732#(<= 1 ~waterLevel~0)} assume !(0 == ~pumpRunning~0); {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:45,965 INFO L280 TraceCheckUtils]: 44: Hoare triple {8732#(<= 1 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {8733#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:45,966 INFO L280 TraceCheckUtils]: 45: Hoare triple {8733#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {8734#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8)} is VALID [2020-07-28 19:03:45,967 INFO L280 TraceCheckUtils]: 46: Hoare triple {8734#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {8729#false} is VALID [2020-07-28 19:03:45,967 INFO L280 TraceCheckUtils]: 47: Hoare triple {8729#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {8729#false} is VALID [2020-07-28 19:03:45,968 INFO L280 TraceCheckUtils]: 48: Hoare triple {8729#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {8729#false} is VALID [2020-07-28 19:03:45,968 INFO L280 TraceCheckUtils]: 49: Hoare triple {8729#false} assume !false; {8729#false} is VALID [2020-07-28 19:03:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-28 19:03:45,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36771045] [2020-07-28 19:03:45,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812327151] [2020-07-28 19:03:45,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 19:03:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:46,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-28 19:03:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:03:46,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 19:03:46,391 INFO L280 TraceCheckUtils]: 0: Hoare triple {8728#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {8728#true} is VALID [2020-07-28 19:03:46,392 INFO L280 TraceCheckUtils]: 1: Hoare triple {8728#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {8728#true} is VALID [2020-07-28 19:03:46,392 INFO L280 TraceCheckUtils]: 2: Hoare triple {8728#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; {8728#true} is VALID [2020-07-28 19:03:46,392 INFO L280 TraceCheckUtils]: 3: Hoare triple {8728#true} main_#t~ret25 := valid_product_#res;assume -2147483648 <= main_#t~ret25 && main_#t~ret25 <= 2147483647;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; {8728#true} is VALID [2020-07-28 19:03:46,392 INFO L280 TraceCheckUtils]: 4: Hoare triple {8728#true} assume 0 != main_~tmp~4; {8728#true} is VALID [2020-07-28 19:03:46,393 INFO L280 TraceCheckUtils]: 5: Hoare triple {8728#true} havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {8728#true} is VALID [2020-07-28 19:03:46,393 INFO L280 TraceCheckUtils]: 6: Hoare triple {8728#true} assume !false; {8728#true} is VALID [2020-07-28 19:03:46,393 INFO L280 TraceCheckUtils]: 7: Hoare triple {8728#true} assume test_~splverifierCounter~0 < 4; {8728#true} is VALID [2020-07-28 19:03:46,393 INFO L280 TraceCheckUtils]: 8: Hoare triple {8728#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {8728#true} is VALID [2020-07-28 19:03:46,394 INFO L280 TraceCheckUtils]: 9: Hoare triple {8728#true} assume 0 != test_~tmp~0; {8728#true} is VALID [2020-07-28 19:03:46,394 INFO L280 TraceCheckUtils]: 10: Hoare triple {8728#true} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {8728#true} is VALID [2020-07-28 19:03:46,397 INFO L280 TraceCheckUtils]: 11: Hoare triple {8728#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {8728#true} is VALID [2020-07-28 19:03:46,397 INFO L280 TraceCheckUtils]: 12: Hoare triple {8728#true} assume !(0 != test_~tmp___0~0); {8728#true} is VALID [2020-07-28 19:03:46,397 INFO L280 TraceCheckUtils]: 13: Hoare triple {8728#true} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {8728#true} is VALID [2020-07-28 19:03:46,397 INFO L280 TraceCheckUtils]: 14: Hoare triple {8728#true} assume 0 != test_~tmp___2~0; {8728#true} is VALID [2020-07-28 19:03:46,397 INFO L280 TraceCheckUtils]: 15: Hoare triple {8728#true} assume !(0 != ~pumpRunning~0); {8728#true} is VALID [2020-07-28 19:03:46,398 INFO L280 TraceCheckUtils]: 16: Hoare triple {8728#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {8728#true} is VALID [2020-07-28 19:03:46,398 INFO L280 TraceCheckUtils]: 17: Hoare triple {8728#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {8728#true} is VALID [2020-07-28 19:03:46,398 INFO L280 TraceCheckUtils]: 18: Hoare triple {8728#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret24, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {8728#true} is VALID [2020-07-28 19:03:46,399 INFO L280 TraceCheckUtils]: 19: Hoare triple {8728#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,400 INFO L280 TraceCheckUtils]: 20: Hoare triple {8731#(<= 2 ~waterLevel~0)} isHighWaterLevel_#t~ret24 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret24 && isHighWaterLevel_#t~ret24 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret24;havoc isHighWaterLevel_#t~ret24; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,401 INFO L280 TraceCheckUtils]: 21: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 != isHighWaterLevel_~tmp~3);isHighWaterLevel_~tmp___0~1 := 1; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,401 INFO L280 TraceCheckUtils]: 22: Hoare triple {8731#(<= 2 ~waterLevel~0)} isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,402 INFO L280 TraceCheckUtils]: 23: Hoare triple {8731#(<= 2 ~waterLevel~0)} processEnvironment__wrappee__highWaterSensor_#t~ret5 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment__wrappee__highWaterSensor_#t~ret5 && processEnvironment__wrappee__highWaterSensor_#t~ret5 <= 2147483647;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret5;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,403 INFO L280 TraceCheckUtils]: 24: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume 0 != processEnvironment__wrappee__highWaterSensor_~tmp~1;~pumpRunning~0 := 1; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,403 INFO L280 TraceCheckUtils]: 25: Hoare triple {8731#(<= 2 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,404 INFO L280 TraceCheckUtils]: 26: Hoare triple {8731#(<= 2 ~waterLevel~0)} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,405 INFO L280 TraceCheckUtils]: 27: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,405 INFO L280 TraceCheckUtils]: 28: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !false; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,406 INFO L280 TraceCheckUtils]: 29: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,407 INFO L280 TraceCheckUtils]: 30: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp~0 := test_#t~nondet1;havoc test_#t~nondet1; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,408 INFO L280 TraceCheckUtils]: 31: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp~0); {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,408 INFO L280 TraceCheckUtils]: 32: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,409 INFO L280 TraceCheckUtils]: 33: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume !(0 != test_~tmp___0~0); {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,410 INFO L280 TraceCheckUtils]: 34: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,410 INFO L280 TraceCheckUtils]: 35: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume 0 != test_~tmp___2~0; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,411 INFO L280 TraceCheckUtils]: 36: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume 0 != ~pumpRunning~0; {8731#(<= 2 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,412 INFO L280 TraceCheckUtils]: 37: Hoare triple {8731#(<= 2 ~waterLevel~0)} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,412 INFO L280 TraceCheckUtils]: 38: Hoare triple {8732#(<= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,413 INFO L280 TraceCheckUtils]: 39: Hoare triple {8732#(<= 1 ~waterLevel~0)} assume 0 != ~pumpRunning~0;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret7, isMethaneAlarm_~retValue_acc~2;havoc isMethaneAlarm_~retValue_acc~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,413 INFO L280 TraceCheckUtils]: 40: Hoare triple {8732#(<= 1 ~waterLevel~0)} isMethaneAlarm_#t~ret7 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret7 && isMethaneAlarm_#t~ret7 <= 2147483647;isMethaneAlarm_~retValue_acc~2 := isMethaneAlarm_#t~ret7;havoc isMethaneAlarm_#t~ret7;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~2; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,414 INFO L280 TraceCheckUtils]: 41: Hoare triple {8732#(<= 1 ~waterLevel~0)} processEnvironment_#t~ret6 := isMethaneAlarm_#res;assume -2147483648 <= processEnvironment_#t~ret6 && processEnvironment_#t~ret6 <= 2147483647;processEnvironment_~tmp~2 := processEnvironment_#t~ret6;havoc processEnvironment_#t~ret6; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,414 INFO L280 TraceCheckUtils]: 42: Hoare triple {8732#(<= 1 ~waterLevel~0)} assume !(0 != processEnvironment_~tmp~2);havoc processEnvironment__wrappee__highWaterSensor_#t~ret5, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,415 INFO L280 TraceCheckUtils]: 43: Hoare triple {8732#(<= 1 ~waterLevel~0)} assume !(0 == ~pumpRunning~0); {8732#(<= 1 ~waterLevel~0)} is VALID [2020-07-28 19:03:46,416 INFO L280 TraceCheckUtils]: 44: Hoare triple {8732#(<= 1 ~waterLevel~0)} havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; {8733#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} is VALID [2020-07-28 19:03:46,416 INFO L280 TraceCheckUtils]: 45: Hoare triple {8733#(<= 1 |ULTIMATE.start_getWaterLevel_#res|)} __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret71 && __utac_acc__Specification4_spec__1_#t~ret71 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; {8734#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8)} is VALID [2020-07-28 19:03:46,417 INFO L280 TraceCheckUtils]: 46: Hoare triple {8734#(<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8)} assume 0 == __utac_acc__Specification4_spec__1_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; {8729#false} is VALID [2020-07-28 19:03:46,417 INFO L280 TraceCheckUtils]: 47: Hoare triple {8729#false} __utac_acc__Specification4_spec__1_#t~ret72 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification4_spec__1_#t~ret72 && __utac_acc__Specification4_spec__1_#t~ret72 <= 2147483647;__utac_acc__Specification4_spec__1_~tmp___0~2 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {8729#false} is VALID [2020-07-28 19:03:46,417 INFO L280 TraceCheckUtils]: 48: Hoare triple {8729#false} assume 0 != __utac_acc__Specification4_spec__1_~tmp___0~2; {8729#false} is VALID [2020-07-28 19:03:46,418 INFO L280 TraceCheckUtils]: 49: Hoare triple {8729#false} assume !false; {8729#false} is VALID [2020-07-28 19:03:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:03:46,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-28 19:03:46,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-07-28 19:03:46,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685856052] [2020-07-28 19:03:46,425 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2020-07-28 19:03:46,425 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:03:46,426 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-28 19:03:46,504 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:46,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-28 19:03:46,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:03:46,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-28 19:03:46,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-28 19:03:46,505 INFO L87 Difference]: Start difference. First operand 133 states and 172 transitions. Second operand 7 states. [2020-07-28 19:03:48,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:48,291 INFO L93 Difference]: Finished difference Result 422 states and 561 transitions. [2020-07-28 19:03:48,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-28 19:03:48,291 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2020-07-28 19:03:48,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:03:48,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 19:03:48,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 334 transitions. [2020-07-28 19:03:48,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 19:03:48,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 334 transitions. [2020-07-28 19:03:48,295 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 334 transitions. [2020-07-28 19:03:48,707 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 334 edges. 334 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:03:48,715 INFO L225 Difference]: With dead ends: 422 [2020-07-28 19:03:48,715 INFO L226 Difference]: Without dead ends: 319 [2020-07-28 19:03:48,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-07-28 19:03:48,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-07-28 19:03:49,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 180. [2020-07-28 19:03:49,155 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:03:49,155 INFO L82 GeneralOperation]: Start isEquivalent. First operand 319 states. Second operand 180 states. [2020-07-28 19:03:49,155 INFO L74 IsIncluded]: Start isIncluded. First operand 319 states. Second operand 180 states. [2020-07-28 19:03:49,155 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 180 states. [2020-07-28 19:03:49,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:49,163 INFO L93 Difference]: Finished difference Result 319 states and 416 transitions. [2020-07-28 19:03:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 416 transitions. [2020-07-28 19:03:49,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:49,164 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:49,164 INFO L74 IsIncluded]: Start isIncluded. First operand 180 states. Second operand 319 states. [2020-07-28 19:03:49,165 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 319 states. [2020-07-28 19:03:49,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:03:49,172 INFO L93 Difference]: Finished difference Result 319 states and 416 transitions. [2020-07-28 19:03:49,172 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 416 transitions. [2020-07-28 19:03:49,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:03:49,173 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:03:49,173 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:03:49,173 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:03:49,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-07-28 19:03:49,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 237 transitions. [2020-07-28 19:03:49,177 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 237 transitions. Word has length 50 [2020-07-28 19:03:49,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:03:49,177 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 237 transitions. [2020-07-28 19:03:49,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-28 19:03:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 237 transitions. [2020-07-28 19:03:49,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-28 19:03:49,179 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:03:49,179 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:03:49,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-07-28 19:03:49,381 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:03:49,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:03:49,382 INFO L82 PathProgramCache]: Analyzing trace with hash 866267864, now seen corresponding path program 2 times [2020-07-28 19:03:49,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:03:49,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386784800] [2020-07-28 19:03:49,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:03:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:03:49,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:03:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:03:49,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:03:49,653 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 19:03:49,654 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 19:03:49,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-28 19:03:49,942 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 19:03:49,942 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 19:03:49,942 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 19:03:49,942 WARN L170 areAnnotationChecker]: L73 has no Hoare annotation [2020-07-28 19:03:49,943 WARN L170 areAnnotationChecker]: L416 has no Hoare annotation [2020-07-28 19:03:49,943 WARN L170 areAnnotationChecker]: L416 has no Hoare annotation [2020-07-28 19:03:49,943 WARN L170 areAnnotationChecker]: L393 has no Hoare annotation [2020-07-28 19:03:49,943 WARN L170 areAnnotationChecker]: L416-1 has no Hoare annotation [2020-07-28 19:03:49,943 WARN L170 areAnnotationChecker]: L908-1 has no Hoare annotation [2020-07-28 19:03:49,943 WARN L170 areAnnotationChecker]: L908-1 has no Hoare annotation [2020-07-28 19:03:49,944 WARN L170 areAnnotationChecker]: L908-1 has no Hoare annotation [2020-07-28 19:03:49,944 WARN L170 areAnnotationChecker]: L425 has no Hoare annotation [2020-07-28 19:03:49,944 WARN L170 areAnnotationChecker]: L138 has no Hoare annotation [2020-07-28 19:03:49,944 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2020-07-28 19:03:49,944 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2020-07-28 19:03:49,944 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 19:03:49,945 WARN L170 areAnnotationChecker]: L163-1 has no Hoare annotation [2020-07-28 19:03:49,945 WARN L170 areAnnotationChecker]: L163-1 has no Hoare annotation [2020-07-28 19:03:49,945 WARN L170 areAnnotationChecker]: L94 has no Hoare annotation [2020-07-28 19:03:49,945 WARN L170 areAnnotationChecker]: L446-3 has no Hoare annotation [2020-07-28 19:03:49,945 WARN L170 areAnnotationChecker]: L446-3 has no Hoare annotation [2020-07-28 19:03:49,946 WARN L170 areAnnotationChecker]: L163-2 has no Hoare annotation [2020-07-28 19:03:49,946 WARN L170 areAnnotationChecker]: L163-2 has no Hoare annotation [2020-07-28 19:03:49,946 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2020-07-28 19:03:49,946 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2020-07-28 19:03:49,946 WARN L170 areAnnotationChecker]: L221-1 has no Hoare annotation [2020-07-28 19:03:49,946 WARN L170 areAnnotationChecker]: L221-1 has no Hoare annotation [2020-07-28 19:03:49,947 WARN L170 areAnnotationChecker]: L170-1 has no Hoare annotation [2020-07-28 19:03:49,947 WARN L170 areAnnotationChecker]: L458 has no Hoare annotation [2020-07-28 19:03:49,947 WARN L170 areAnnotationChecker]: L458 has no Hoare annotation [2020-07-28 19:03:49,947 WARN L170 areAnnotationChecker]: L102-1 has no Hoare annotation [2020-07-28 19:03:49,947 WARN L170 areAnnotationChecker]: L483-1 has no Hoare annotation [2020-07-28 19:03:49,947 WARN L170 areAnnotationChecker]: L195-3 has no Hoare annotation [2020-07-28 19:03:49,948 WARN L170 areAnnotationChecker]: L195-3 has no Hoare annotation [2020-07-28 19:03:49,948 WARN L170 areAnnotationChecker]: L515-1 has no Hoare annotation [2020-07-28 19:03:49,948 WARN L170 areAnnotationChecker]: L112 has no Hoare annotation [2020-07-28 19:03:49,948 WARN L170 areAnnotationChecker]: L112 has no Hoare annotation [2020-07-28 19:03:49,948 WARN L170 areAnnotationChecker]: L265-1 has no Hoare annotation [2020-07-28 19:03:49,948 WARN L170 areAnnotationChecker]: L523-3 has no Hoare annotation [2020-07-28 19:03:49,949 WARN L170 areAnnotationChecker]: L523-3 has no Hoare annotation [2020-07-28 19:03:49,949 WARN L170 areAnnotationChecker]: L908-2 has no Hoare annotation [2020-07-28 19:03:49,949 WARN L170 areAnnotationChecker]: L908-2 has no Hoare annotation [2020-07-28 19:03:49,949 WARN L170 areAnnotationChecker]: L470 has no Hoare annotation [2020-07-28 19:03:49,949 WARN L170 areAnnotationChecker]: L470 has no Hoare annotation [2020-07-28 19:03:49,949 WARN L170 areAnnotationChecker]: L112-1 has no Hoare annotation [2020-07-28 19:03:49,950 WARN L170 areAnnotationChecker]: L225-1 has no Hoare annotation [2020-07-28 19:03:49,950 WARN L170 areAnnotationChecker]: L225-1 has no Hoare annotation [2020-07-28 19:03:49,950 WARN L170 areAnnotationChecker]: L528-3 has no Hoare annotation [2020-07-28 19:03:49,950 WARN L170 areAnnotationChecker]: L274-1 has no Hoare annotation [2020-07-28 19:03:49,950 WARN L170 areAnnotationChecker]: L908-3 has no Hoare annotation [2020-07-28 19:03:49,950 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2020-07-28 19:03:49,951 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2020-07-28 19:03:49,951 WARN L170 areAnnotationChecker]: L195-2 has no Hoare annotation [2020-07-28 19:03:49,951 WARN L170 areAnnotationChecker]: L195-2 has no Hoare annotation [2020-07-28 19:03:49,951 WARN L170 areAnnotationChecker]: L323-9 has no Hoare annotation [2020-07-28 19:03:49,952 WARN L170 areAnnotationChecker]: L323-9 has no Hoare annotation [2020-07-28 19:03:49,952 WARN L170 areAnnotationChecker]: L912-2 has no Hoare annotation [2020-07-28 19:03:49,952 WARN L170 areAnnotationChecker]: L912-2 has no Hoare annotation [2020-07-28 19:03:49,952 WARN L170 areAnnotationChecker]: L345-2 has no Hoare annotation [2020-07-28 19:03:49,952 WARN L170 areAnnotationChecker]: L345-2 has no Hoare annotation [2020-07-28 19:03:49,952 WARN L170 areAnnotationChecker]: L345-2 has no Hoare annotation [2020-07-28 19:03:49,953 WARN L170 areAnnotationChecker]: L128-2 has no Hoare annotation [2020-07-28 19:03:49,953 WARN L170 areAnnotationChecker]: L128-2 has no Hoare annotation [2020-07-28 19:03:49,953 WARN L170 areAnnotationChecker]: L128 has no Hoare annotation [2020-07-28 19:03:49,953 WARN L170 areAnnotationChecker]: L128 has no Hoare annotation [2020-07-28 19:03:49,953 WARN L170 areAnnotationChecker]: L523-2 has no Hoare annotation [2020-07-28 19:03:49,953 WARN L170 areAnnotationChecker]: L523-2 has no Hoare annotation [2020-07-28 19:03:49,954 WARN L170 areAnnotationChecker]: L323-11 has no Hoare annotation [2020-07-28 19:03:49,954 WARN L170 areAnnotationChecker]: L434-1 has no Hoare annotation [2020-07-28 19:03:49,954 WARN L170 areAnnotationChecker]: L434-1 has no Hoare annotation [2020-07-28 19:03:49,954 WARN L170 areAnnotationChecker]: L346 has no Hoare annotation [2020-07-28 19:03:49,954 WARN L170 areAnnotationChecker]: L446 has no Hoare annotation [2020-07-28 19:03:49,955 WARN L170 areAnnotationChecker]: L446 has no Hoare annotation [2020-07-28 19:03:49,955 WARN L170 areAnnotationChecker]: L163 has no Hoare annotation [2020-07-28 19:03:49,955 WARN L170 areAnnotationChecker]: L163 has no Hoare annotation [2020-07-28 19:03:49,955 WARN L170 areAnnotationChecker]: L528-2 has no Hoare annotation [2020-07-28 19:03:49,955 WARN L170 areAnnotationChecker]: L329-3 has no Hoare annotation [2020-07-28 19:03:49,955 WARN L170 areAnnotationChecker]: L349 has no Hoare annotation [2020-07-28 19:03:49,956 WARN L170 areAnnotationChecker]: L349 has no Hoare annotation [2020-07-28 19:03:49,956 WARN L170 areAnnotationChecker]: L221 has no Hoare annotation [2020-07-28 19:03:49,956 WARN L170 areAnnotationChecker]: L221 has no Hoare annotation [2020-07-28 19:03:49,956 WARN L170 areAnnotationChecker]: L170 has no Hoare annotation [2020-07-28 19:03:49,956 WARN L170 areAnnotationChecker]: L323-6 has no Hoare annotation [2020-07-28 19:03:49,956 WARN L170 areAnnotationChecker]: L323-6 has no Hoare annotation [2020-07-28 19:03:49,957 WARN L170 areAnnotationChecker]: L199-3 has no Hoare annotation [2020-07-28 19:03:49,957 WARN L170 areAnnotationChecker]: L199-3 has no Hoare annotation [2020-07-28 19:03:49,957 WARN L170 areAnnotationChecker]: L349-1 has no Hoare annotation [2020-07-28 19:03:49,957 WARN L170 areAnnotationChecker]: L349-1 has no Hoare annotation [2020-07-28 19:03:49,957 WARN L170 areAnnotationChecker]: L483 has no Hoare annotation [2020-07-28 19:03:49,957 WARN L170 areAnnotationChecker]: L195-1 has no Hoare annotation [2020-07-28 19:03:49,958 WARN L170 areAnnotationChecker]: L195-1 has no Hoare annotation [2020-07-28 19:03:49,958 WARN L170 areAnnotationChecker]: L515 has no Hoare annotation [2020-07-28 19:03:49,958 WARN L170 areAnnotationChecker]: L323-8 has no Hoare annotation [2020-07-28 19:03:49,958 WARN L170 areAnnotationChecker]: L446-6 has no Hoare annotation [2020-07-28 19:03:49,958 WARN L170 areAnnotationChecker]: L446-6 has no Hoare annotation [2020-07-28 19:03:49,958 WARN L170 areAnnotationChecker]: L163-3 has no Hoare annotation [2020-07-28 19:03:49,958 WARN L170 areAnnotationChecker]: L163-3 has no Hoare annotation [2020-07-28 19:03:49,959 WARN L170 areAnnotationChecker]: L265 has no Hoare annotation [2020-07-28 19:03:49,959 WARN L170 areAnnotationChecker]: L523-1 has no Hoare annotation [2020-07-28 19:03:49,959 WARN L170 areAnnotationChecker]: L523-1 has no Hoare annotation [2020-07-28 19:03:49,959 WARN L170 areAnnotationChecker]: L908 has no Hoare annotation [2020-07-28 19:03:49,959 WARN L170 areAnnotationChecker]: L908 has no Hoare annotation [2020-07-28 19:03:49,960 WARN L170 areAnnotationChecker]: L329-2 has no Hoare annotation [2020-07-28 19:03:49,960 WARN L170 areAnnotationChecker]: L221-2 has no Hoare annotation [2020-07-28 19:03:49,960 WARN L170 areAnnotationChecker]: L221-2 has no Hoare annotation [2020-07-28 19:03:49,960 WARN L170 areAnnotationChecker]: L170-2 has no Hoare annotation [2020-07-28 19:03:49,960 WARN L170 areAnnotationChecker]: L225 has no Hoare annotation [2020-07-28 19:03:49,960 WARN L170 areAnnotationChecker]: L225 has no Hoare annotation [2020-07-28 19:03:49,961 WARN L170 areAnnotationChecker]: L528-1 has no Hoare annotation [2020-07-28 19:03:49,961 WARN L170 areAnnotationChecker]: L274 has no Hoare annotation [2020-07-28 19:03:49,961 WARN L170 areAnnotationChecker]: L199-2 has no Hoare annotation [2020-07-28 19:03:49,961 WARN L170 areAnnotationChecker]: L199-2 has no Hoare annotation [2020-07-28 19:03:49,961 WARN L170 areAnnotationChecker]: L483-2 has no Hoare annotation [2020-07-28 19:03:49,961 WARN L170 areAnnotationChecker]: L195-5 has no Hoare annotation [2020-07-28 19:03:49,961 WARN L170 areAnnotationChecker]: L195-5 has no Hoare annotation [2020-07-28 19:03:49,962 WARN L170 areAnnotationChecker]: L515-2 has no Hoare annotation [2020-07-28 19:03:49,962 WARN L170 areAnnotationChecker]: L195 has no Hoare annotation [2020-07-28 19:03:49,962 WARN L170 areAnnotationChecker]: L195 has no Hoare annotation [2020-07-28 19:03:49,962 WARN L170 areAnnotationChecker]: L323-3 has no Hoare annotation [2020-07-28 19:03:49,962 WARN L170 areAnnotationChecker]: L323-3 has no Hoare annotation [2020-07-28 19:03:49,962 WARN L170 areAnnotationChecker]: L912 has no Hoare annotation [2020-07-28 19:03:49,963 WARN L170 areAnnotationChecker]: L912 has no Hoare annotation [2020-07-28 19:03:49,963 WARN L170 areAnnotationChecker]: L265-2 has no Hoare annotation [2020-07-28 19:03:49,963 WARN L170 areAnnotationChecker]: L523-5 has no Hoare annotation [2020-07-28 19:03:49,963 WARN L170 areAnnotationChecker]: L523-5 has no Hoare annotation [2020-07-28 19:03:49,963 WARN L170 areAnnotationChecker]: L908-4 has no Hoare annotation [2020-07-28 19:03:49,963 WARN L170 areAnnotationChecker]: L908-4 has no Hoare annotation [2020-07-28 19:03:49,964 WARN L170 areAnnotationChecker]: L523 has no Hoare annotation [2020-07-28 19:03:49,964 WARN L170 areAnnotationChecker]: L523 has no Hoare annotation [2020-07-28 19:03:49,964 WARN L170 areAnnotationChecker]: L323-5 has no Hoare annotation [2020-07-28 19:03:49,964 WARN L170 areAnnotationChecker]: L434 has no Hoare annotation [2020-07-28 19:03:49,964 WARN L170 areAnnotationChecker]: L434 has no Hoare annotation [2020-07-28 19:03:49,964 WARN L170 areAnnotationChecker]: L225-2 has no Hoare annotation [2020-07-28 19:03:49,965 WARN L170 areAnnotationChecker]: L225-2 has no Hoare annotation [2020-07-28 19:03:49,965 WARN L170 areAnnotationChecker]: L528-5 has no Hoare annotation [2020-07-28 19:03:49,965 WARN L170 areAnnotationChecker]: L274-2 has no Hoare annotation [2020-07-28 19:03:49,965 WARN L170 areAnnotationChecker]: L908-5 has no Hoare annotation [2020-07-28 19:03:49,965 WARN L170 areAnnotationChecker]: L528 has no Hoare annotation [2020-07-28 19:03:49,965 WARN L170 areAnnotationChecker]: L329-1 has no Hoare annotation [2020-07-28 19:03:49,966 WARN L170 areAnnotationChecker]: L195-4 has no Hoare annotation [2020-07-28 19:03:49,966 WARN L170 areAnnotationChecker]: L195-4 has no Hoare annotation [2020-07-28 19:03:49,966 WARN L170 areAnnotationChecker]: L323-15 has no Hoare annotation [2020-07-28 19:03:49,966 WARN L170 areAnnotationChecker]: L323-15 has no Hoare annotation [2020-07-28 19:03:49,966 WARN L170 areAnnotationChecker]: L912-4 has no Hoare annotation [2020-07-28 19:03:49,966 WARN L170 areAnnotationChecker]: L912-4 has no Hoare annotation [2020-07-28 19:03:49,966 WARN L170 areAnnotationChecker]: L323 has no Hoare annotation [2020-07-28 19:03:49,967 WARN L170 areAnnotationChecker]: L323 has no Hoare annotation [2020-07-28 19:03:49,967 WARN L170 areAnnotationChecker]: L199-1 has no Hoare annotation [2020-07-28 19:03:49,967 WARN L170 areAnnotationChecker]: L199-1 has no Hoare annotation [2020-07-28 19:03:49,967 WARN L170 areAnnotationChecker]: L523-4 has no Hoare annotation [2020-07-28 19:03:49,967 WARN L170 areAnnotationChecker]: L523-4 has no Hoare annotation [2020-07-28 19:03:49,967 WARN L170 areAnnotationChecker]: L323-17 has no Hoare annotation [2020-07-28 19:03:49,968 WARN L170 areAnnotationChecker]: L434-2 has no Hoare annotation [2020-07-28 19:03:49,968 WARN L170 areAnnotationChecker]: L434-2 has no Hoare annotation [2020-07-28 19:03:49,968 WARN L170 areAnnotationChecker]: L323-2 has no Hoare annotation [2020-07-28 19:03:49,968 WARN L170 areAnnotationChecker]: L528-4 has no Hoare annotation [2020-07-28 19:03:49,968 WARN L170 areAnnotationChecker]: L329-5 has no Hoare annotation [2020-07-28 19:03:49,969 WARN L170 areAnnotationChecker]: L329 has no Hoare annotation [2020-07-28 19:03:49,969 WARN L170 areAnnotationChecker]: L323-12 has no Hoare annotation [2020-07-28 19:03:49,969 WARN L170 areAnnotationChecker]: L323-12 has no Hoare annotation [2020-07-28 19:03:49,969 WARN L170 areAnnotationChecker]: L199-5 has no Hoare annotation [2020-07-28 19:03:49,969 WARN L170 areAnnotationChecker]: L199-5 has no Hoare annotation [2020-07-28 19:03:49,969 WARN L170 areAnnotationChecker]: L199 has no Hoare annotation [2020-07-28 19:03:49,970 WARN L170 areAnnotationChecker]: L199 has no Hoare annotation [2020-07-28 19:03:49,970 WARN L170 areAnnotationChecker]: L323-14 has no Hoare annotation [2020-07-28 19:03:49,970 WARN L170 areAnnotationChecker]: L329-4 has no Hoare annotation [2020-07-28 19:03:49,970 WARN L170 areAnnotationChecker]: L199-4 has no Hoare annotation [2020-07-28 19:03:49,970 WARN L170 areAnnotationChecker]: L199-4 has no Hoare annotation [2020-07-28 19:03:49,970 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 19:03:49,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 07:03:49 BoogieIcfgContainer [2020-07-28 19:03:49,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 19:03:49,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 19:03:49,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 19:03:49,975 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 19:03:49,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:03:31" (3/4) ... [2020-07-28 19:03:49,978 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 19:03:50,173 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 19:03:50,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 19:03:50,176 INFO L168 Benchmark]: Toolchain (without parser) took 20682.27 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 484.4 MB). Free memory was 960.2 MB in the beginning and 1.4 GB in the end (delta: -443.9 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:50,177 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 19:03:50,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:50,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:50,178 INFO L168 Benchmark]: Boogie Preprocessor took 52.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:50,178 INFO L168 Benchmark]: RCFGBuilder took 1568.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 942.0 MB in the end (delta: 163.4 MB). Peak memory consumption was 163.4 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:50,179 INFO L168 Benchmark]: TraceAbstraction took 18116.82 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 340.8 MB). Free memory was 942.0 MB in the beginning and 1.5 GB in the end (delta: -527.4 MB). Peak memory consumption was 362.7 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:50,179 INFO L168 Benchmark]: Witness Printer took 198.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 65.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 11.5 GB. [2020-07-28 19:03:50,181 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 630.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 105.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1568.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 942.0 MB in the end (delta: 163.4 MB). Peak memory consumption was 163.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18116.82 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 340.8 MB). Free memory was 942.0 MB in the beginning and 1.5 GB in the end (delta: -527.4 MB). Peak memory consumption was 362.7 MB. Max. memory is 11.5 GB. * Witness Printer took 198.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 65.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 434]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L155] int pumpRunning = 0; [L156] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L440] int waterLevel = 1; [L441] int methaneLevelCritical = 0; [L703] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L407] int retValue_acc ; [L408] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] tmp = valid_product() [L416] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L83] int splverifierCounter ; [L84] int tmp ; [L85] int tmp___0 ; [L86] int tmp___1 ; [L87] int tmp___2 ; [L90] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L92] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L94] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L100] tmp = __VERIFIER_nondet_int() [L102] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L458] COND TRUE waterLevel < 2 [L459] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND TRUE \read(systemActive) [L218] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L221] COND FALSE !(\read(pumpRunning)) [L192] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L195] COND TRUE ! pumpRunning [L315] int retValue_acc ; [L316] int tmp ; [L317] int tmp___0 ; [L520] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L523] COND FALSE !(waterLevel < 2) [L527] retValue_acc = 0 [L528] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] tmp = isHighWaterSensorDry() [L323] COND FALSE !(\read(tmp)) [L326] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L328] retValue_acc = tmp___0 [L329] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] tmp = isHighWaterLevel() [L199] COND TRUE \read(tmp) [L246] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L901] int tmp ; [L902] int tmp___0 ; [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L906] tmp = getWaterLevel() [L908] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L92] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L94] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L100] tmp = __VERIFIER_nondet_int() [L102] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L163] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L446] COND TRUE waterLevel > 0 [L447] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L170] COND TRUE \read(systemActive) [L218] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L221] COND TRUE \read(pumpRunning) [L259] int retValue_acc ; [L479] int retValue_acc ; [L482] retValue_acc = methaneLevelCritical [L483] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L263] retValue_acc = isMethaneLevelCritical() [L265] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L223] tmp = isMethaneAlarm() [L225] COND FALSE !(\read(tmp)) [L192] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L195] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L901] int tmp ; [L902] int tmp___0 ; [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L906] tmp = getWaterLevel() [L908] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L92] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L94] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L100] tmp = __VERIFIER_nondet_int() [L102] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L446] COND TRUE waterLevel > 0 [L447] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L170] COND TRUE \read(systemActive) [L218] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L221] COND TRUE \read(pumpRunning) [L259] int retValue_acc ; [L479] int retValue_acc ; [L482] retValue_acc = methaneLevelCritical [L483] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L263] retValue_acc = isMethaneLevelCritical() [L265] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L223] tmp = isMethaneAlarm() [L225] COND FALSE !(\read(tmp)) [L192] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L195] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L901] int tmp ; [L902] int tmp___0 ; [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L906] tmp = getWaterLevel() [L908] COND TRUE tmp == 0 [L270] int retValue_acc ; [L273] retValue_acc = pumpRunning [L274] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L910] tmp___0 = isPumpRunning() [L912] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L434] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.7s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1213 SDtfs, 1481 SDslu, 1774 SDs, 0 SdLazy, 329 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 674 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 498 NumberOfCodeBlocks, 498 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 416 ConstructedInterpolants, 0 QuantifiedInterpolants, 30512 SizeOfPredicates, 4 NumberOfNonLiveVariables, 394 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 44/56 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...