./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product44.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_spec2_product44.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 1e304dec1a19556a559249c7b1ef76290bc8b678 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:59:49,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:59:49,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:59:49,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:59:49,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:59:49,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:59:49,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:59:49,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:59:49,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:59:49,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:59:49,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:59:49,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:59:49,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:59:49,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:59:49,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:59:49,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:59:49,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:59:49,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:59:49,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:59:49,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:59:49,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:59:49,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:59:49,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:59:49,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:59:49,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:59:49,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:59:49,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:59:49,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:59:49,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:59:49,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:59:49,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:59:49,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:59:49,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:59:49,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:59:49,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:59:49,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:59:49,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:59:49,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:59:49,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:59:49,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:59:49,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:59:49,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:59:50,003 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:59:50,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:59:50,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:59:50,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:59:50,005 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:59:50,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:59:50,005 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:59:50,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:59:50,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:59:50,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:59:50,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:59:50,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:59:50,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:59:50,007 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:59:50,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:59:50,007 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:59:50,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:59:50,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:59:50,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:59:50,008 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:59:50,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:59:50,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:59:50,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:59:50,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:59:50,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:59:50,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:59:50,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:59:50,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:59:50,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:59:50,010 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 -> 1e304dec1a19556a559249c7b1ef76290bc8b678 [2020-07-28 18:59:50,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:59:50,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:59:50,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:59:50,367 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:59:50,367 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:59:50,368 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-07-28 18:59:50,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c47f1b8e/56641d3fe812423488689ed299735341/FLAG344d3d9a7 [2020-07-28 18:59:50,913 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:59:50,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-07-28 18:59:50,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c47f1b8e/56641d3fe812423488689ed299735341/FLAG344d3d9a7 [2020-07-28 18:59:51,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c47f1b8e/56641d3fe812423488689ed299735341 [2020-07-28 18:59:51,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:59:51,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:59:51,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:59:51,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:59:51,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:59:51,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:59:51" (1/1) ... [2020-07-28 18:59:51,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698f9d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:51, skipping insertion in model container [2020-07-28 18:59:51,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:59:51" (1/1) ... [2020-07-28 18:59:51,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:59:51,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:59:51,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:59:51,864 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:59:52,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:59:52,056 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:59:52,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52 WrapperNode [2020-07-28 18:59:52,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:59:52,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:59:52,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:59:52,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:59:52,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (1/1) ... [2020-07-28 18:59:52,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (1/1) ... [2020-07-28 18:59:52,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:59:52,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:59:52,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:59:52,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:59:52,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (1/1) ... [2020-07-28 18:59:52,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (1/1) ... [2020-07-28 18:59:52,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (1/1) ... [2020-07-28 18:59:52,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (1/1) ... [2020-07-28 18:59:52,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (1/1) ... [2020-07-28 18:59:52,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (1/1) ... [2020-07-28 18:59:52,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (1/1) ... [2020-07-28 18:59:52,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:59:52,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:59:52,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:59:52,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:59:52,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:59:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 18:59:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 18:59:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:59:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:59:53,811 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:59:53,812 INFO L295 CfgBuilder]: Removed 122 assume(true) statements. [2020-07-28 18:59:53,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:59:53 BoogieIcfgContainer [2020-07-28 18:59:53,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:59:53,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:59:53,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:59:53,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:59:53,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:59:51" (1/3) ... [2020-07-28 18:59:53,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b79148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:59:53, skipping insertion in model container [2020-07-28 18:59:53,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:59:52" (2/3) ... [2020-07-28 18:59:53,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b79148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:59:53, skipping insertion in model container [2020-07-28 18:59:53,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:59:53" (3/3) ... [2020-07-28 18:59:53,828 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-07-28 18:59:53,840 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:59:53,849 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 18:59:53,867 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 18:59:53,898 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:59:53,899 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:59:53,899 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:59:53,901 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:59:53,905 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:59:53,905 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:59:53,906 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:59:53,906 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:59:53,928 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2020-07-28 18:59:53,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 18:59:53,936 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:53,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:53,938 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:53,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:53,947 INFO L82 PathProgramCache]: Analyzing trace with hash -732978716, now seen corresponding path program 1 times [2020-07-28 18:59:53,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:53,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317120142] [2020-07-28 18:59:53,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:54,287 INFO L280 TraceCheckUtils]: 0: Hoare triple {96#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {96#true} is VALID [2020-07-28 18:59:54,288 INFO L280 TraceCheckUtils]: 1: Hoare triple {96#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {96#true} is VALID [2020-07-28 18:59:54,289 INFO L280 TraceCheckUtils]: 2: Hoare triple {96#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {96#true} is VALID [2020-07-28 18:59:54,290 INFO L280 TraceCheckUtils]: 3: Hoare triple {96#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; {96#true} is VALID [2020-07-28 18:59:54,290 INFO L280 TraceCheckUtils]: 4: Hoare triple {96#true} assume 0 != main_~tmp~4; {96#true} is VALID [2020-07-28 18:59:54,291 INFO L280 TraceCheckUtils]: 5: Hoare triple {96#true} ~methAndRunningLastTime~0 := 0; {96#true} is VALID [2020-07-28 18:59:54,291 INFO L280 TraceCheckUtils]: 6: Hoare triple {96#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {96#true} is VALID [2020-07-28 18:59:54,292 INFO L280 TraceCheckUtils]: 7: Hoare triple {96#true} assume false; {97#false} is VALID [2020-07-28 18:59:54,293 INFO L280 TraceCheckUtils]: 8: Hoare triple {97#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {97#false} is VALID [2020-07-28 18:59:54,293 INFO L280 TraceCheckUtils]: 9: Hoare triple {97#false} assume !(0 != ~pumpRunning~0); {97#false} is VALID [2020-07-28 18:59:54,294 INFO L280 TraceCheckUtils]: 10: Hoare triple {97#false} assume !(0 != ~systemActive~0); {97#false} is VALID [2020-07-28 18:59:54,294 INFO L280 TraceCheckUtils]: 11: Hoare triple {97#false} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {97#false} is VALID [2020-07-28 18:59:54,294 INFO L280 TraceCheckUtils]: 12: Hoare triple {97#false} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {97#false} is VALID [2020-07-28 18:59:54,295 INFO L280 TraceCheckUtils]: 13: Hoare triple {97#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {97#false} is VALID [2020-07-28 18:59:54,295 INFO L280 TraceCheckUtils]: 14: Hoare triple {97#false} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {97#false} is VALID [2020-07-28 18:59:54,295 INFO L280 TraceCheckUtils]: 15: Hoare triple {97#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {97#false} is VALID [2020-07-28 18:59:54,296 INFO L280 TraceCheckUtils]: 16: Hoare triple {97#false} assume 0 != ~methAndRunningLastTime~0; {97#false} is VALID [2020-07-28 18:59:54,296 INFO L280 TraceCheckUtils]: 17: Hoare triple {97#false} assume !false; {97#false} is VALID [2020-07-28 18:59:54,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:54,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317120142] [2020-07-28 18:59:54,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:54,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:59:54,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228193751] [2020-07-28 18:59:54,309 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 18:59:54,311 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:54,315 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 18:59:54,359 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:54,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 18:59:54,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:54,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 18:59:54,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:59:54,372 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 2 states. [2020-07-28 18:59:54,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:54,615 INFO L93 Difference]: Finished difference Result 179 states and 270 transitions. [2020-07-28 18:59:54,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 18:59:54,616 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 18:59:54,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:54,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:59:54,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 270 transitions. [2020-07-28 18:59:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:59:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 270 transitions. [2020-07-28 18:59:54,633 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 270 transitions. [2020-07-28 18:59:55,026 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 270 edges. 270 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:55,049 INFO L225 Difference]: With dead ends: 179 [2020-07-28 18:59:55,050 INFO L226 Difference]: Without dead ends: 89 [2020-07-28 18:59:55,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:59:55,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-07-28 18:59:55,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-07-28 18:59:55,134 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:55,135 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand 89 states. [2020-07-28 18:59:55,136 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 89 states. [2020-07-28 18:59:55,136 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 89 states. [2020-07-28 18:59:55,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:55,148 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-07-28 18:59:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2020-07-28 18:59:55,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:55,150 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:55,151 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 89 states. [2020-07-28 18:59:55,151 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 89 states. [2020-07-28 18:59:55,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:55,166 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-07-28 18:59:55,167 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2020-07-28 18:59:55,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:55,168 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:55,169 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:55,169 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:55,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-07-28 18:59:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2020-07-28 18:59:55,179 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2020-07-28 18:59:55,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:55,179 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2020-07-28 18:59:55,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 18:59:55,180 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2020-07-28 18:59:55,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-28 18:59:55,188 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:55,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:55,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:59:55,189 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:55,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:55,191 INFO L82 PathProgramCache]: Analyzing trace with hash -951814685, now seen corresponding path program 1 times [2020-07-28 18:59:55,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:55,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062487214] [2020-07-28 18:59:55,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:55,389 INFO L280 TraceCheckUtils]: 0: Hoare triple {657#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {657#true} is VALID [2020-07-28 18:59:55,390 INFO L280 TraceCheckUtils]: 1: Hoare triple {657#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {657#true} is VALID [2020-07-28 18:59:55,390 INFO L280 TraceCheckUtils]: 2: Hoare triple {657#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {657#true} is VALID [2020-07-28 18:59:55,390 INFO L280 TraceCheckUtils]: 3: Hoare triple {657#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; {657#true} is VALID [2020-07-28 18:59:55,391 INFO L280 TraceCheckUtils]: 4: Hoare triple {657#true} assume 0 != main_~tmp~4; {657#true} is VALID [2020-07-28 18:59:55,391 INFO L280 TraceCheckUtils]: 5: Hoare triple {657#true} ~methAndRunningLastTime~0 := 0; {657#true} is VALID [2020-07-28 18:59:55,392 INFO L280 TraceCheckUtils]: 6: Hoare triple {657#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {659#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 18:59:55,393 INFO L280 TraceCheckUtils]: 7: Hoare triple {659#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !false; {659#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 18:59:55,394 INFO L280 TraceCheckUtils]: 8: Hoare triple {659#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !(test_~splverifierCounter~0 < 4); {658#false} is VALID [2020-07-28 18:59:55,394 INFO L280 TraceCheckUtils]: 9: Hoare triple {658#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {658#false} is VALID [2020-07-28 18:59:55,395 INFO L280 TraceCheckUtils]: 10: Hoare triple {658#false} assume !(0 != ~pumpRunning~0); {658#false} is VALID [2020-07-28 18:59:55,395 INFO L280 TraceCheckUtils]: 11: Hoare triple {658#false} assume !(0 != ~systemActive~0); {658#false} is VALID [2020-07-28 18:59:55,395 INFO L280 TraceCheckUtils]: 12: Hoare triple {658#false} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {658#false} is VALID [2020-07-28 18:59:55,396 INFO L280 TraceCheckUtils]: 13: Hoare triple {658#false} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {658#false} is VALID [2020-07-28 18:59:55,396 INFO L280 TraceCheckUtils]: 14: Hoare triple {658#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {658#false} is VALID [2020-07-28 18:59:55,396 INFO L280 TraceCheckUtils]: 15: Hoare triple {658#false} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {658#false} is VALID [2020-07-28 18:59:55,397 INFO L280 TraceCheckUtils]: 16: Hoare triple {658#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {658#false} is VALID [2020-07-28 18:59:55,397 INFO L280 TraceCheckUtils]: 17: Hoare triple {658#false} assume 0 != ~methAndRunningLastTime~0; {658#false} is VALID [2020-07-28 18:59:55,398 INFO L280 TraceCheckUtils]: 18: Hoare triple {658#false} assume !false; {658#false} is VALID [2020-07-28 18:59:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:55,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062487214] [2020-07-28 18:59:55,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:55,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 18:59:55,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982381778] [2020-07-28 18:59:55,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-28 18:59:55,405 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:55,406 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:59:55,437 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:55,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:59:55,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:55,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:59:55,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:55,438 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 3 states. [2020-07-28 18:59:55,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:55,704 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-07-28 18:59:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:59:55,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-28 18:59:55,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:55,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:55,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 127 transitions. [2020-07-28 18:59:55,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 127 transitions. [2020-07-28 18:59:55,711 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 127 transitions. [2020-07-28 18:59:55,858 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 127 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:55,860 INFO L225 Difference]: With dead ends: 89 [2020-07-28 18:59:55,860 INFO L226 Difference]: Without dead ends: 41 [2020-07-28 18:59:55,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:55,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-07-28 18:59:55,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-07-28 18:59:55,885 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:55,885 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand 41 states. [2020-07-28 18:59:55,885 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 41 states. [2020-07-28 18:59:55,885 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 41 states. [2020-07-28 18:59:55,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:55,888 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2020-07-28 18:59:55,888 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-07-28 18:59:55,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:55,889 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:55,889 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 41 states. [2020-07-28 18:59:55,889 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 41 states. [2020-07-28 18:59:55,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:55,892 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2020-07-28 18:59:55,892 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-07-28 18:59:55,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:55,892 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:55,892 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:55,893 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:55,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-28 18:59:55,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2020-07-28 18:59:55,895 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2020-07-28 18:59:55,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:55,895 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2020-07-28 18:59:55,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:59:55,895 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-07-28 18:59:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 18:59:55,896 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:55,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:55,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:59:55,897 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:55,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:55,897 INFO L82 PathProgramCache]: Analyzing trace with hash -2025304256, now seen corresponding path program 1 times [2020-07-28 18:59:55,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:55,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440991342] [2020-07-28 18:59:55,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:55,977 INFO L280 TraceCheckUtils]: 0: Hoare triple {928#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {928#true} is VALID [2020-07-28 18:59:55,977 INFO L280 TraceCheckUtils]: 1: Hoare triple {928#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {928#true} is VALID [2020-07-28 18:59:55,977 INFO L280 TraceCheckUtils]: 2: Hoare triple {928#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {928#true} is VALID [2020-07-28 18:59:55,978 INFO L280 TraceCheckUtils]: 3: Hoare triple {928#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; {928#true} is VALID [2020-07-28 18:59:55,978 INFO L280 TraceCheckUtils]: 4: Hoare triple {928#true} assume 0 != main_~tmp~4; {928#true} is VALID [2020-07-28 18:59:55,978 INFO L280 TraceCheckUtils]: 5: Hoare triple {928#true} ~methAndRunningLastTime~0 := 0; {928#true} is VALID [2020-07-28 18:59:55,978 INFO L280 TraceCheckUtils]: 6: Hoare triple {928#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {928#true} is VALID [2020-07-28 18:59:55,979 INFO L280 TraceCheckUtils]: 7: Hoare triple {928#true} assume !false; {928#true} is VALID [2020-07-28 18:59:55,979 INFO L280 TraceCheckUtils]: 8: Hoare triple {928#true} assume test_~splverifierCounter~0 < 4; {928#true} is VALID [2020-07-28 18:59:55,979 INFO L280 TraceCheckUtils]: 9: Hoare triple {928#true} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {928#true} is VALID [2020-07-28 18:59:55,980 INFO L280 TraceCheckUtils]: 10: Hoare triple {928#true} assume !(0 != test_~tmp~0); {928#true} is VALID [2020-07-28 18:59:55,980 INFO L280 TraceCheckUtils]: 11: Hoare triple {928#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {928#true} is VALID [2020-07-28 18:59:55,980 INFO L280 TraceCheckUtils]: 12: Hoare triple {928#true} assume !(0 != test_~tmp___0~0); {928#true} is VALID [2020-07-28 18:59:55,980 INFO L280 TraceCheckUtils]: 13: Hoare triple {928#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {928#true} is VALID [2020-07-28 18:59:55,981 INFO L280 TraceCheckUtils]: 14: Hoare triple {928#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {930#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:59:55,982 INFO L280 TraceCheckUtils]: 15: Hoare triple {930#(= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {930#(= 1 ~systemActive~0)} is VALID [2020-07-28 18:59:55,983 INFO L280 TraceCheckUtils]: 16: Hoare triple {930#(= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {929#false} is VALID [2020-07-28 18:59:55,983 INFO L280 TraceCheckUtils]: 17: Hoare triple {929#false} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {929#false} is VALID [2020-07-28 18:59:55,984 INFO L280 TraceCheckUtils]: 18: Hoare triple {929#false} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {929#false} is VALID [2020-07-28 18:59:55,984 INFO L280 TraceCheckUtils]: 19: Hoare triple {929#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {929#false} is VALID [2020-07-28 18:59:55,984 INFO L280 TraceCheckUtils]: 20: Hoare triple {929#false} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {929#false} is VALID [2020-07-28 18:59:55,985 INFO L280 TraceCheckUtils]: 21: Hoare triple {929#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {929#false} is VALID [2020-07-28 18:59:55,985 INFO L280 TraceCheckUtils]: 22: Hoare triple {929#false} assume 0 != ~methAndRunningLastTime~0; {929#false} is VALID [2020-07-28 18:59:55,985 INFO L280 TraceCheckUtils]: 23: Hoare triple {929#false} assume !false; {929#false} is VALID [2020-07-28 18:59:55,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:55,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440991342] [2020-07-28 18:59:55,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:55,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 18:59:55,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79184003] [2020-07-28 18:59:55,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 18:59:55,988 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:55,988 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:59:56,025 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:56,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:59:56,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:56,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:59:56,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:56,026 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 3 states. [2020-07-28 18:59:56,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:56,305 INFO L93 Difference]: Finished difference Result 109 states and 160 transitions. [2020-07-28 18:59:56,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:59:56,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 18:59:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:56,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:56,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2020-07-28 18:59:56,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:56,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2020-07-28 18:59:56,311 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 160 transitions. [2020-07-28 18:59:56,518 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 160 edges. 160 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:56,521 INFO L225 Difference]: With dead ends: 109 [2020-07-28 18:59:56,521 INFO L226 Difference]: Without dead ends: 75 [2020-07-28 18:59:56,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:56,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-28 18:59:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2020-07-28 18:59:56,573 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:56,573 INFO L82 GeneralOperation]: Start isEquivalent. First operand 75 states. Second operand 71 states. [2020-07-28 18:59:56,573 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 71 states. [2020-07-28 18:59:56,573 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 71 states. [2020-07-28 18:59:56,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:56,580 INFO L93 Difference]: Finished difference Result 75 states and 108 transitions. [2020-07-28 18:59:56,580 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 108 transitions. [2020-07-28 18:59:56,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:56,583 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:56,583 INFO L74 IsIncluded]: Start isIncluded. First operand 71 states. Second operand 75 states. [2020-07-28 18:59:56,583 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 75 states. [2020-07-28 18:59:56,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:56,591 INFO L93 Difference]: Finished difference Result 75 states and 108 transitions. [2020-07-28 18:59:56,593 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 108 transitions. [2020-07-28 18:59:56,593 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:56,594 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:56,594 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:56,594 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:56,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-07-28 18:59:56,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2020-07-28 18:59:56,600 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 24 [2020-07-28 18:59:56,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:56,600 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2020-07-28 18:59:56,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:59:56,600 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2020-07-28 18:59:56,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 18:59:56,601 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:56,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:59:56,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 18:59:56,602 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:56,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:56,602 INFO L82 PathProgramCache]: Analyzing trace with hash 193545241, now seen corresponding path program 1 times [2020-07-28 18:59:56,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:56,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277686924] [2020-07-28 18:59:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:56,748 INFO L280 TraceCheckUtils]: 0: Hoare triple {1335#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,749 INFO L280 TraceCheckUtils]: 1: Hoare triple {1337#(= 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; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,750 INFO L280 TraceCheckUtils]: 2: Hoare triple {1337#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,750 INFO L280 TraceCheckUtils]: 3: Hoare triple {1337#(= 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; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,751 INFO L280 TraceCheckUtils]: 4: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~4; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,752 INFO L280 TraceCheckUtils]: 5: Hoare triple {1337#(= 0 ~pumpRunning~0)} ~methAndRunningLastTime~0 := 0; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,752 INFO L280 TraceCheckUtils]: 6: Hoare triple {1337#(= 0 ~pumpRunning~0)} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,753 INFO L280 TraceCheckUtils]: 7: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume !false; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,754 INFO L280 TraceCheckUtils]: 8: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,755 INFO L280 TraceCheckUtils]: 9: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,755 INFO L280 TraceCheckUtils]: 10: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~0); {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,756 INFO L280 TraceCheckUtils]: 11: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,757 INFO L280 TraceCheckUtils]: 12: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___0~0); {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,757 INFO L280 TraceCheckUtils]: 13: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,758 INFO L280 TraceCheckUtils]: 14: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,759 INFO L280 TraceCheckUtils]: 15: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,760 INFO L280 TraceCheckUtils]: 16: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {1337#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:56,760 INFO L280 TraceCheckUtils]: 17: Hoare triple {1337#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1336#false} is VALID [2020-07-28 18:59:56,761 INFO L280 TraceCheckUtils]: 18: Hoare triple {1336#false} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {1336#false} is VALID [2020-07-28 18:59:56,761 INFO L280 TraceCheckUtils]: 19: Hoare triple {1336#false} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {1336#false} is VALID [2020-07-28 18:59:56,761 INFO L280 TraceCheckUtils]: 20: Hoare triple {1336#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {1336#false} is VALID [2020-07-28 18:59:56,761 INFO L280 TraceCheckUtils]: 21: Hoare triple {1336#false} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {1336#false} is VALID [2020-07-28 18:59:56,762 INFO L280 TraceCheckUtils]: 22: Hoare triple {1336#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {1336#false} is VALID [2020-07-28 18:59:56,762 INFO L280 TraceCheckUtils]: 23: Hoare triple {1336#false} assume 0 != ~methAndRunningLastTime~0; {1336#false} is VALID [2020-07-28 18:59:56,762 INFO L280 TraceCheckUtils]: 24: Hoare triple {1336#false} assume !false; {1336#false} is VALID [2020-07-28 18:59:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:56,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277686924] [2020-07-28 18:59:56,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:56,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:59:56,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414435671] [2020-07-28 18:59:56,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-28 18:59:56,765 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:56,765 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 18:59:56,806 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:56,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 18:59:56,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:56,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 18:59:56,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:56,807 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2020-07-28 18:59:57,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:57,065 INFO L93 Difference]: Finished difference Result 178 states and 267 transitions. [2020-07-28 18:59:57,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 18:59:57,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-28 18:59:57,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2020-07-28 18:59:57,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 18:59:57,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2020-07-28 18:59:57,074 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 144 transitions. [2020-07-28 18:59:57,229 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 144 edges. 144 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:57,234 INFO L225 Difference]: With dead ends: 178 [2020-07-28 18:59:57,235 INFO L226 Difference]: Without dead ends: 114 [2020-07-28 18:59:57,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 18:59:57,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-28 18:59:57,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2020-07-28 18:59:57,324 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:57,324 INFO L82 GeneralOperation]: Start isEquivalent. First operand 114 states. Second operand 112 states. [2020-07-28 18:59:57,324 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 112 states. [2020-07-28 18:59:57,324 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 112 states. [2020-07-28 18:59:57,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:57,331 INFO L93 Difference]: Finished difference Result 114 states and 165 transitions. [2020-07-28 18:59:57,331 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 165 transitions. [2020-07-28 18:59:57,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:57,332 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:57,332 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 114 states. [2020-07-28 18:59:57,332 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 114 states. [2020-07-28 18:59:57,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:57,338 INFO L93 Difference]: Finished difference Result 114 states and 165 transitions. [2020-07-28 18:59:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 165 transitions. [2020-07-28 18:59:57,339 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:57,339 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:57,339 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:57,339 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:57,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-07-28 18:59:57,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 164 transitions. [2020-07-28 18:59:57,345 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 164 transitions. Word has length 25 [2020-07-28 18:59:57,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:57,346 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 164 transitions. [2020-07-28 18:59:57,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 18:59:57,346 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 164 transitions. [2020-07-28 18:59:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-28 18:59:57,347 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:57,347 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] [2020-07-28 18:59:57,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 18:59:57,349 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:57,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:57,350 INFO L82 PathProgramCache]: Analyzing trace with hash 433385865, now seen corresponding path program 1 times [2020-07-28 18:59:57,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:57,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484104761] [2020-07-28 18:59:57,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:57,455 INFO L280 TraceCheckUtils]: 0: Hoare triple {1973#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,456 INFO L280 TraceCheckUtils]: 1: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,456 INFO L280 TraceCheckUtils]: 2: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,457 INFO L280 TraceCheckUtils]: 3: Hoare triple {1975#(= 0 ~methaneLevelCritical~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; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,458 INFO L280 TraceCheckUtils]: 4: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume 0 != main_~tmp~4; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,460 INFO L280 TraceCheckUtils]: 5: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} ~methAndRunningLastTime~0 := 0; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,461 INFO L280 TraceCheckUtils]: 6: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,462 INFO L280 TraceCheckUtils]: 7: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume !false; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,462 INFO L280 TraceCheckUtils]: 8: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume test_~splverifierCounter~0 < 4; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,463 INFO L280 TraceCheckUtils]: 9: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,463 INFO L280 TraceCheckUtils]: 10: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp~0); {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,463 INFO L280 TraceCheckUtils]: 11: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,464 INFO L280 TraceCheckUtils]: 12: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp___0~0); {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,465 INFO L280 TraceCheckUtils]: 13: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,465 INFO L280 TraceCheckUtils]: 14: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume !(0 != test_~tmp___2~0);assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___1~0 := test_#t~nondet3;havoc test_#t~nondet3; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,466 INFO L280 TraceCheckUtils]: 15: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume 0 != test_~tmp___1~0; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,466 INFO L280 TraceCheckUtils]: 16: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,466 INFO L280 TraceCheckUtils]: 17: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} ~systemActive~0 := 0; {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,467 INFO L280 TraceCheckUtils]: 18: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~pumpRunning~0); {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,468 INFO L280 TraceCheckUtils]: 19: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} assume !(0 != ~systemActive~0); {1975#(= 0 ~methaneLevelCritical~0)} is VALID [2020-07-28 18:59:57,471 INFO L280 TraceCheckUtils]: 20: Hoare triple {1975#(= 0 ~methaneLevelCritical~0)} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {1976#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} is VALID [2020-07-28 18:59:57,472 INFO L280 TraceCheckUtils]: 21: Hoare triple {1976#(= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {1977#(= 0 ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~5)} is VALID [2020-07-28 18:59:57,474 INFO L280 TraceCheckUtils]: 22: Hoare triple {1977#(= 0 ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~5)} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {1974#false} is VALID [2020-07-28 18:59:57,475 INFO L280 TraceCheckUtils]: 23: Hoare triple {1974#false} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {1974#false} is VALID [2020-07-28 18:59:57,475 INFO L280 TraceCheckUtils]: 24: Hoare triple {1974#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {1974#false} is VALID [2020-07-28 18:59:57,475 INFO L280 TraceCheckUtils]: 25: Hoare triple {1974#false} assume 0 != ~methAndRunningLastTime~0; {1974#false} is VALID [2020-07-28 18:59:57,476 INFO L280 TraceCheckUtils]: 26: Hoare triple {1974#false} assume !false; {1974#false} is VALID [2020-07-28 18:59:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:57,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484104761] [2020-07-28 18:59:57,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:57,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:59:57,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508925129] [2020-07-28 18:59:57,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-28 18:59:57,479 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:57,479 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:59:57,516 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:57,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:59:57,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:57,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:59:57,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:59:57,517 INFO L87 Difference]: Start difference. First operand 112 states and 164 transitions. Second operand 5 states. [2020-07-28 18:59:58,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:58,605 INFO L93 Difference]: Finished difference Result 544 states and 809 transitions. [2020-07-28 18:59:58,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 18:59:58,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-28 18:59:58,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:59:58,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:59:58,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 291 transitions. [2020-07-28 18:59:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:59:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 291 transitions. [2020-07-28 18:59:58,619 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 291 transitions. [2020-07-28 18:59:59,003 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 291 edges. 291 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:59,023 INFO L225 Difference]: With dead ends: 544 [2020-07-28 18:59:59,023 INFO L226 Difference]: Without dead ends: 439 [2020-07-28 18:59:59,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:59:59,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-07-28 18:59:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 203. [2020-07-28 18:59:59,249 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:59:59,249 INFO L82 GeneralOperation]: Start isEquivalent. First operand 439 states. Second operand 203 states. [2020-07-28 18:59:59,250 INFO L74 IsIncluded]: Start isIncluded. First operand 439 states. Second operand 203 states. [2020-07-28 18:59:59,250 INFO L87 Difference]: Start difference. First operand 439 states. Second operand 203 states. [2020-07-28 18:59:59,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:59,273 INFO L93 Difference]: Finished difference Result 439 states and 643 transitions. [2020-07-28 18:59:59,275 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 643 transitions. [2020-07-28 18:59:59,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:59,277 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:59,277 INFO L74 IsIncluded]: Start isIncluded. First operand 203 states. Second operand 439 states. [2020-07-28 18:59:59,277 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 439 states. [2020-07-28 18:59:59,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:59:59,300 INFO L93 Difference]: Finished difference Result 439 states and 643 transitions. [2020-07-28 18:59:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 643 transitions. [2020-07-28 18:59:59,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:59:59,302 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:59:59,302 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:59:59,303 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:59:59,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-28 18:59:59,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 292 transitions. [2020-07-28 18:59:59,311 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 292 transitions. Word has length 27 [2020-07-28 18:59:59,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:59:59,312 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 292 transitions. [2020-07-28 18:59:59,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:59:59,312 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 292 transitions. [2020-07-28 18:59:59,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-28 18:59:59,313 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:59:59,314 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] [2020-07-28 18:59:59,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 18:59:59,314 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:59:59,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:59:59,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1000759295, now seen corresponding path program 1 times [2020-07-28 18:59:59,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:59:59,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552859463] [2020-07-28 18:59:59,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:59:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:59:59,393 INFO L280 TraceCheckUtils]: 0: Hoare triple {3924#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,394 INFO L280 TraceCheckUtils]: 1: Hoare triple {3926#(= 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; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,394 INFO L280 TraceCheckUtils]: 2: Hoare triple {3926#(= 0 ~pumpRunning~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,395 INFO L280 TraceCheckUtils]: 3: Hoare triple {3926#(= 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; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,396 INFO L280 TraceCheckUtils]: 4: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume 0 != main_~tmp~4; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,396 INFO L280 TraceCheckUtils]: 5: Hoare triple {3926#(= 0 ~pumpRunning~0)} ~methAndRunningLastTime~0 := 0; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,397 INFO L280 TraceCheckUtils]: 6: Hoare triple {3926#(= 0 ~pumpRunning~0)} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,400 INFO L280 TraceCheckUtils]: 7: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume !false; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,401 INFO L280 TraceCheckUtils]: 8: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume test_~splverifierCounter~0 < 4; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,407 INFO L280 TraceCheckUtils]: 9: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,411 INFO L280 TraceCheckUtils]: 10: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp~0); {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,417 INFO L280 TraceCheckUtils]: 11: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,419 INFO L280 TraceCheckUtils]: 12: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___0~0; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,420 INFO L280 TraceCheckUtils]: 13: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,420 INFO L280 TraceCheckUtils]: 14: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,421 INFO L280 TraceCheckUtils]: 15: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume !(0 != test_~tmp___2~0);assume -2147483648 <= test_#t~nondet3 && test_#t~nondet3 <= 2147483647;test_~tmp___1~0 := test_#t~nondet3;havoc test_#t~nondet3; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,423 INFO L280 TraceCheckUtils]: 16: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume 0 != test_~tmp___1~0; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,424 INFO L280 TraceCheckUtils]: 17: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,425 INFO L280 TraceCheckUtils]: 18: Hoare triple {3926#(= 0 ~pumpRunning~0)} ~systemActive~0 := 0; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,425 INFO L280 TraceCheckUtils]: 19: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0); {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,426 INFO L280 TraceCheckUtils]: 20: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume !(0 != ~systemActive~0); {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,426 INFO L280 TraceCheckUtils]: 21: Hoare triple {3926#(= 0 ~pumpRunning~0)} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,427 INFO L280 TraceCheckUtils]: 22: Hoare triple {3926#(= 0 ~pumpRunning~0)} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {3926#(= 0 ~pumpRunning~0)} is VALID [2020-07-28 18:59:59,427 INFO L280 TraceCheckUtils]: 23: Hoare triple {3926#(= 0 ~pumpRunning~0)} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {3927#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} is VALID [2020-07-28 18:59:59,428 INFO L280 TraceCheckUtils]: 24: Hoare triple {3927#(= 0 |ULTIMATE.start_isPumpRunning_#res|)} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {3928#(= 0 ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~2)} is VALID [2020-07-28 18:59:59,428 INFO L280 TraceCheckUtils]: 25: Hoare triple {3928#(= 0 ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~2)} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {3925#false} is VALID [2020-07-28 18:59:59,429 INFO L280 TraceCheckUtils]: 26: Hoare triple {3925#false} assume 0 != ~methAndRunningLastTime~0; {3925#false} is VALID [2020-07-28 18:59:59,429 INFO L280 TraceCheckUtils]: 27: Hoare triple {3925#false} assume !false; {3925#false} is VALID [2020-07-28 18:59:59,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:59:59,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552859463] [2020-07-28 18:59:59,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:59:59,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:59:59,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053689507] [2020-07-28 18:59:59,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-07-28 18:59:59,432 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:59:59,432 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:59:59,477 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:59:59,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:59:59,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:59:59,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:59:59,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 18:59:59,478 INFO L87 Difference]: Start difference. First operand 203 states and 292 transitions. Second operand 5 states. [2020-07-28 19:00:00,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:00,951 INFO L93 Difference]: Finished difference Result 769 states and 1111 transitions. [2020-07-28 19:00:00,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 19:00:00,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-07-28 19:00:00,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:00:00,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:00:00,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 294 transitions. [2020-07-28 19:00:00,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:00:00,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 294 transitions. [2020-07-28 19:00:00,967 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 294 transitions. [2020-07-28 19:00:01,286 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 294 edges. 294 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:01,314 INFO L225 Difference]: With dead ends: 769 [2020-07-28 19:00:01,314 INFO L226 Difference]: Without dead ends: 573 [2020-07-28 19:00:01,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 19:00:01,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-07-28 19:00:01,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 201. [2020-07-28 19:00:01,686 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:00:01,687 INFO L82 GeneralOperation]: Start isEquivalent. First operand 573 states. Second operand 201 states. [2020-07-28 19:00:01,687 INFO L74 IsIncluded]: Start isIncluded. First operand 573 states. Second operand 201 states. [2020-07-28 19:00:01,687 INFO L87 Difference]: Start difference. First operand 573 states. Second operand 201 states. [2020-07-28 19:00:01,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:01,733 INFO L93 Difference]: Finished difference Result 573 states and 824 transitions. [2020-07-28 19:00:01,733 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 824 transitions. [2020-07-28 19:00:01,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:01,735 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:01,735 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 573 states. [2020-07-28 19:00:01,736 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 573 states. [2020-07-28 19:00:01,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:01,778 INFO L93 Difference]: Finished difference Result 573 states and 824 transitions. [2020-07-28 19:00:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 824 transitions. [2020-07-28 19:00:01,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:01,780 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:01,780 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:00:01,781 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:00:01,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-28 19:00:01,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 286 transitions. [2020-07-28 19:00:01,788 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 286 transitions. Word has length 28 [2020-07-28 19:00:01,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:00:01,788 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 286 transitions. [2020-07-28 19:00:01,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:00:01,789 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 286 transitions. [2020-07-28 19:00:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-28 19:00:01,793 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:00:01,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:00:01,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 19:00:01,794 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:00:01,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:00:01,794 INFO L82 PathProgramCache]: Analyzing trace with hash 341285158, now seen corresponding path program 1 times [2020-07-28 19:00:01,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:00:01,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528308944] [2020-07-28 19:00:01,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:00:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:00:01,925 INFO L280 TraceCheckUtils]: 0: Hoare triple {6461#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {6461#true} is VALID [2020-07-28 19:00:01,925 INFO L280 TraceCheckUtils]: 1: Hoare triple {6461#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {6461#true} is VALID [2020-07-28 19:00:01,925 INFO L280 TraceCheckUtils]: 2: Hoare triple {6461#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {6461#true} is VALID [2020-07-28 19:00:01,926 INFO L280 TraceCheckUtils]: 3: Hoare triple {6461#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; {6461#true} is VALID [2020-07-28 19:00:01,926 INFO L280 TraceCheckUtils]: 4: Hoare triple {6461#true} assume 0 != main_~tmp~4; {6461#true} is VALID [2020-07-28 19:00:01,926 INFO L280 TraceCheckUtils]: 5: Hoare triple {6461#true} ~methAndRunningLastTime~0 := 0; {6461#true} is VALID [2020-07-28 19:00:01,926 INFO L280 TraceCheckUtils]: 6: Hoare triple {6461#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {6461#true} is VALID [2020-07-28 19:00:01,927 INFO L280 TraceCheckUtils]: 7: Hoare triple {6461#true} assume !false; {6461#true} is VALID [2020-07-28 19:00:01,927 INFO L280 TraceCheckUtils]: 8: Hoare triple {6461#true} assume test_~splverifierCounter~0 < 4; {6461#true} is VALID [2020-07-28 19:00:01,927 INFO L280 TraceCheckUtils]: 9: Hoare triple {6461#true} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {6461#true} is VALID [2020-07-28 19:00:01,928 INFO L280 TraceCheckUtils]: 10: Hoare triple {6461#true} assume !(0 != test_~tmp~0); {6461#true} is VALID [2020-07-28 19:00:01,928 INFO L280 TraceCheckUtils]: 11: Hoare triple {6461#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {6461#true} is VALID [2020-07-28 19:00:01,929 INFO L280 TraceCheckUtils]: 12: Hoare triple {6461#true} assume 0 != test_~tmp___0~0; {6461#true} is VALID [2020-07-28 19:00:01,929 INFO L280 TraceCheckUtils]: 13: Hoare triple {6461#true} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {6461#true} is VALID [2020-07-28 19:00:01,929 INFO L280 TraceCheckUtils]: 14: Hoare triple {6461#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {6461#true} is VALID [2020-07-28 19:00:01,930 INFO L280 TraceCheckUtils]: 15: Hoare triple {6461#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {6461#true} is VALID [2020-07-28 19:00:01,930 INFO L280 TraceCheckUtils]: 16: Hoare triple {6461#true} assume !(0 != ~pumpRunning~0); {6461#true} is VALID [2020-07-28 19:00:01,931 INFO L280 TraceCheckUtils]: 17: Hoare triple {6461#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {6461#true} is VALID [2020-07-28 19:00:01,931 INFO L280 TraceCheckUtils]: 18: Hoare triple {6461#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {6461#true} is VALID [2020-07-28 19:00:01,931 INFO L280 TraceCheckUtils]: 19: Hoare triple {6461#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {6461#true} is VALID [2020-07-28 19:00:01,932 INFO L280 TraceCheckUtils]: 20: Hoare triple {6461#true} isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret23 && isHighWaterLevel_#t~ret23 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; {6461#true} is VALID [2020-07-28 19:00:01,933 INFO L280 TraceCheckUtils]: 21: Hoare triple {6461#true} assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; {6463#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1)} is VALID [2020-07-28 19:00:01,934 INFO L280 TraceCheckUtils]: 22: Hoare triple {6463#(= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~1)} isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; {6464#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} is VALID [2020-07-28 19:00:01,935 INFO L280 TraceCheckUtils]: 23: Hoare triple {6464#(= 0 |ULTIMATE.start_isHighWaterLevel_#res|)} processEnvironment_#t~ret4 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret4 && processEnvironment_#t~ret4 <= 2147483647;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; {6465#(= 0 ULTIMATE.start_processEnvironment_~tmp~1)} is VALID [2020-07-28 19:00:01,936 INFO L280 TraceCheckUtils]: 24: Hoare triple {6465#(= 0 ULTIMATE.start_processEnvironment_~tmp~1)} assume 0 != processEnvironment_~tmp~1;havoc activatePump_#t~ret5, activatePump_~tmp~2;havoc activatePump_~tmp~2;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret6, isMethaneAlarm_~retValue_acc~0;havoc isMethaneAlarm_~retValue_acc~0;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; {6462#false} is VALID [2020-07-28 19:00:01,936 INFO L280 TraceCheckUtils]: 25: Hoare triple {6462#false} isMethaneAlarm_#t~ret6 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret6 && isMethaneAlarm_#t~ret6 <= 2147483647;isMethaneAlarm_~retValue_acc~0 := isMethaneAlarm_#t~ret6;havoc isMethaneAlarm_#t~ret6;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~0; {6462#false} is VALID [2020-07-28 19:00:01,937 INFO L280 TraceCheckUtils]: 26: Hoare triple {6462#false} activatePump_#t~ret5 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret5 && activatePump_#t~ret5 <= 2147483647;activatePump_~tmp~2 := activatePump_#t~ret5;havoc activatePump_#t~ret5; {6462#false} is VALID [2020-07-28 19:00:01,937 INFO L280 TraceCheckUtils]: 27: Hoare triple {6462#false} assume !(0 != activatePump_~tmp~2);~pumpRunning~0 := 1; {6462#false} is VALID [2020-07-28 19:00:01,939 INFO L280 TraceCheckUtils]: 28: Hoare triple {6462#false} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {6462#false} is VALID [2020-07-28 19:00:01,939 INFO L280 TraceCheckUtils]: 29: Hoare triple {6462#false} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {6462#false} is VALID [2020-07-28 19:00:01,939 INFO L280 TraceCheckUtils]: 30: Hoare triple {6462#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {6462#false} is VALID [2020-07-28 19:00:01,940 INFO L280 TraceCheckUtils]: 31: Hoare triple {6462#false} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {6462#false} is VALID [2020-07-28 19:00:01,940 INFO L280 TraceCheckUtils]: 32: Hoare triple {6462#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {6462#false} is VALID [2020-07-28 19:00:01,940 INFO L280 TraceCheckUtils]: 33: Hoare triple {6462#false} assume 0 != ~methAndRunningLastTime~0; {6462#false} is VALID [2020-07-28 19:00:01,940 INFO L280 TraceCheckUtils]: 34: Hoare triple {6462#false} assume !false; {6462#false} is VALID [2020-07-28 19:00:01,944 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 19:00:01,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528308944] [2020-07-28 19:00:01,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:00:01,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 19:00:01,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417984305] [2020-07-28 19:00:01,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-07-28 19:00:01,948 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:00:01,949 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:00:02,012 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:02,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:00:02,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:00:02,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:00:02,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:00:02,013 INFO L87 Difference]: Start difference. First operand 201 states and 286 transitions. Second operand 5 states. [2020-07-28 19:00:03,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:03,062 INFO L93 Difference]: Finished difference Result 555 states and 781 transitions. [2020-07-28 19:00:03,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 19:00:03,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-07-28 19:00:03,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:00:03,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:00:03,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2020-07-28 19:00:03,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:00:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2020-07-28 19:00:03,067 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 170 transitions. [2020-07-28 19:00:03,248 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 170 edges. 170 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:03,261 INFO L225 Difference]: With dead ends: 555 [2020-07-28 19:00:03,261 INFO L226 Difference]: Without dead ends: 361 [2020-07-28 19:00:03,263 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 19:00:03,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-07-28 19:00:03,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 213. [2020-07-28 19:00:03,574 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:00:03,574 INFO L82 GeneralOperation]: Start isEquivalent. First operand 361 states. Second operand 213 states. [2020-07-28 19:00:03,574 INFO L74 IsIncluded]: Start isIncluded. First operand 361 states. Second operand 213 states. [2020-07-28 19:00:03,574 INFO L87 Difference]: Start difference. First operand 361 states. Second operand 213 states. [2020-07-28 19:00:03,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:03,586 INFO L93 Difference]: Finished difference Result 361 states and 498 transitions. [2020-07-28 19:00:03,587 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 498 transitions. [2020-07-28 19:00:03,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:03,588 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:03,588 INFO L74 IsIncluded]: Start isIncluded. First operand 213 states. Second operand 361 states. [2020-07-28 19:00:03,588 INFO L87 Difference]: Start difference. First operand 213 states. Second operand 361 states. [2020-07-28 19:00:03,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:03,601 INFO L93 Difference]: Finished difference Result 361 states and 498 transitions. [2020-07-28 19:00:03,602 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 498 transitions. [2020-07-28 19:00:03,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:03,603 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:03,603 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:00:03,603 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:00:03,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-07-28 19:00:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 298 transitions. [2020-07-28 19:00:03,609 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 298 transitions. Word has length 35 [2020-07-28 19:00:03,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:00:03,610 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 298 transitions. [2020-07-28 19:00:03,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:00:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 298 transitions. [2020-07-28 19:00:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-28 19:00:03,611 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:00:03,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:00:03,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 19:00:03,612 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:00:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:00:03,612 INFO L82 PathProgramCache]: Analyzing trace with hash -669832092, now seen corresponding path program 1 times [2020-07-28 19:00:03,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:00:03,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082658533] [2020-07-28 19:00:03,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:00:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:00:03,718 INFO L280 TraceCheckUtils]: 0: Hoare triple {8278#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {8278#true} is VALID [2020-07-28 19:00:03,719 INFO L280 TraceCheckUtils]: 1: Hoare triple {8278#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {8278#true} is VALID [2020-07-28 19:00:03,719 INFO L280 TraceCheckUtils]: 2: Hoare triple {8278#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {8278#true} is VALID [2020-07-28 19:00:03,719 INFO L280 TraceCheckUtils]: 3: Hoare triple {8278#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; {8278#true} is VALID [2020-07-28 19:00:03,720 INFO L280 TraceCheckUtils]: 4: Hoare triple {8278#true} assume 0 != main_~tmp~4; {8278#true} is VALID [2020-07-28 19:00:03,720 INFO L280 TraceCheckUtils]: 5: Hoare triple {8278#true} ~methAndRunningLastTime~0 := 0; {8278#true} is VALID [2020-07-28 19:00:03,720 INFO L280 TraceCheckUtils]: 6: Hoare triple {8278#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {8278#true} is VALID [2020-07-28 19:00:03,720 INFO L280 TraceCheckUtils]: 7: Hoare triple {8278#true} assume !false; {8278#true} is VALID [2020-07-28 19:00:03,721 INFO L280 TraceCheckUtils]: 8: Hoare triple {8278#true} assume test_~splverifierCounter~0 < 4; {8278#true} is VALID [2020-07-28 19:00:03,721 INFO L280 TraceCheckUtils]: 9: Hoare triple {8278#true} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {8278#true} is VALID [2020-07-28 19:00:03,721 INFO L280 TraceCheckUtils]: 10: Hoare triple {8278#true} assume !(0 != test_~tmp~0); {8278#true} is VALID [2020-07-28 19:00:03,722 INFO L280 TraceCheckUtils]: 11: Hoare triple {8278#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {8278#true} is VALID [2020-07-28 19:00:03,722 INFO L280 TraceCheckUtils]: 12: Hoare triple {8278#true} assume 0 != test_~tmp___0~0; {8278#true} is VALID [2020-07-28 19:00:03,722 INFO L280 TraceCheckUtils]: 13: Hoare triple {8278#true} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {8278#true} is VALID [2020-07-28 19:00:03,722 INFO L280 TraceCheckUtils]: 14: Hoare triple {8278#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {8278#true} is VALID [2020-07-28 19:00:03,723 INFO L280 TraceCheckUtils]: 15: Hoare triple {8278#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {8278#true} is VALID [2020-07-28 19:00:03,723 INFO L280 TraceCheckUtils]: 16: Hoare triple {8278#true} assume !(0 != ~pumpRunning~0); {8278#true} is VALID [2020-07-28 19:00:03,723 INFO L280 TraceCheckUtils]: 17: Hoare triple {8278#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {8278#true} is VALID [2020-07-28 19:00:03,723 INFO L280 TraceCheckUtils]: 18: Hoare triple {8278#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {8278#true} is VALID [2020-07-28 19:00:03,727 INFO L280 TraceCheckUtils]: 19: Hoare triple {8278#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {8280#(= 1 |ULTIMATE.start_isHighWaterSensorDry_#res|)} is VALID [2020-07-28 19:00:03,729 INFO L280 TraceCheckUtils]: 20: Hoare triple {8280#(= 1 |ULTIMATE.start_isHighWaterSensorDry_#res|)} isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret23 && isHighWaterLevel_#t~ret23 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; {8281#(= 1 ULTIMATE.start_isHighWaterLevel_~tmp~3)} is VALID [2020-07-28 19:00:03,729 INFO L280 TraceCheckUtils]: 21: Hoare triple {8281#(= 1 ULTIMATE.start_isHighWaterLevel_~tmp~3)} assume !(0 != isHighWaterLevel_~tmp~3);isHighWaterLevel_~tmp___0~1 := 1; {8279#false} is VALID [2020-07-28 19:00:03,730 INFO L280 TraceCheckUtils]: 22: Hoare triple {8279#false} isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; {8279#false} is VALID [2020-07-28 19:00:03,730 INFO L280 TraceCheckUtils]: 23: Hoare triple {8279#false} processEnvironment_#t~ret4 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret4 && processEnvironment_#t~ret4 <= 2147483647;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; {8279#false} is VALID [2020-07-28 19:00:03,730 INFO L280 TraceCheckUtils]: 24: Hoare triple {8279#false} assume 0 != processEnvironment_~tmp~1;havoc activatePump_#t~ret5, activatePump_~tmp~2;havoc activatePump_~tmp~2;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret6, isMethaneAlarm_~retValue_acc~0;havoc isMethaneAlarm_~retValue_acc~0;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; {8279#false} is VALID [2020-07-28 19:00:03,730 INFO L280 TraceCheckUtils]: 25: Hoare triple {8279#false} isMethaneAlarm_#t~ret6 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret6 && isMethaneAlarm_#t~ret6 <= 2147483647;isMethaneAlarm_~retValue_acc~0 := isMethaneAlarm_#t~ret6;havoc isMethaneAlarm_#t~ret6;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~0; {8279#false} is VALID [2020-07-28 19:00:03,731 INFO L280 TraceCheckUtils]: 26: Hoare triple {8279#false} activatePump_#t~ret5 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret5 && activatePump_#t~ret5 <= 2147483647;activatePump_~tmp~2 := activatePump_#t~ret5;havoc activatePump_#t~ret5; {8279#false} is VALID [2020-07-28 19:00:03,731 INFO L280 TraceCheckUtils]: 27: Hoare triple {8279#false} assume !(0 != activatePump_~tmp~2);~pumpRunning~0 := 1; {8279#false} is VALID [2020-07-28 19:00:03,731 INFO L280 TraceCheckUtils]: 28: Hoare triple {8279#false} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {8279#false} is VALID [2020-07-28 19:00:03,731 INFO L280 TraceCheckUtils]: 29: Hoare triple {8279#false} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {8279#false} is VALID [2020-07-28 19:00:03,732 INFO L280 TraceCheckUtils]: 30: Hoare triple {8279#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {8279#false} is VALID [2020-07-28 19:00:03,732 INFO L280 TraceCheckUtils]: 31: Hoare triple {8279#false} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {8279#false} is VALID [2020-07-28 19:00:03,732 INFO L280 TraceCheckUtils]: 32: Hoare triple {8279#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {8279#false} is VALID [2020-07-28 19:00:03,738 INFO L280 TraceCheckUtils]: 33: Hoare triple {8279#false} assume 0 != ~methAndRunningLastTime~0; {8279#false} is VALID [2020-07-28 19:00:03,738 INFO L280 TraceCheckUtils]: 34: Hoare triple {8279#false} assume !false; {8279#false} is VALID [2020-07-28 19:00:03,740 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 19:00:03,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082658533] [2020-07-28 19:00:03,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:00:03,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 19:00:03,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204513493] [2020-07-28 19:00:03,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-28 19:00:03,742 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:00:03,742 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 19:00:03,789 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:03,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 19:00:03,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:00:03,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 19:00:03,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 19:00:03,790 INFO L87 Difference]: Start difference. First operand 213 states and 298 transitions. Second operand 4 states. [2020-07-28 19:00:04,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:04,909 INFO L93 Difference]: Finished difference Result 515 states and 715 transitions. [2020-07-28 19:00:04,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 19:00:04,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-28 19:00:04,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:00:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:00:04,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 144 transitions. [2020-07-28 19:00:04,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 19:00:04,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 144 transitions. [2020-07-28 19:00:04,913 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 144 transitions. [2020-07-28 19:00:05,058 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 144 edges. 144 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:05,067 INFO L225 Difference]: With dead ends: 515 [2020-07-28 19:00:05,068 INFO L226 Difference]: Without dead ends: 309 [2020-07-28 19:00:05,069 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 19:00:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-07-28 19:00:05,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 221. [2020-07-28 19:00:05,457 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:00:05,457 INFO L82 GeneralOperation]: Start isEquivalent. First operand 309 states. Second operand 221 states. [2020-07-28 19:00:05,458 INFO L74 IsIncluded]: Start isIncluded. First operand 309 states. Second operand 221 states. [2020-07-28 19:00:05,458 INFO L87 Difference]: Start difference. First operand 309 states. Second operand 221 states. [2020-07-28 19:00:05,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:05,471 INFO L93 Difference]: Finished difference Result 309 states and 420 transitions. [2020-07-28 19:00:05,471 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 420 transitions. [2020-07-28 19:00:05,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:05,472 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:05,473 INFO L74 IsIncluded]: Start isIncluded. First operand 221 states. Second operand 309 states. [2020-07-28 19:00:05,473 INFO L87 Difference]: Start difference. First operand 221 states. Second operand 309 states. [2020-07-28 19:00:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:05,484 INFO L93 Difference]: Finished difference Result 309 states and 420 transitions. [2020-07-28 19:00:05,485 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 420 transitions. [2020-07-28 19:00:05,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:05,486 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:05,486 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:00:05,486 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:00:05,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-07-28 19:00:05,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 306 transitions. [2020-07-28 19:00:05,494 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 306 transitions. Word has length 35 [2020-07-28 19:00:05,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:00:05,495 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 306 transitions. [2020-07-28 19:00:05,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 19:00:05,496 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 306 transitions. [2020-07-28 19:00:05,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-28 19:00:05,497 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:00:05,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:00:05,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 19:00:05,498 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:00:05,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:00:05,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1690900446, now seen corresponding path program 1 times [2020-07-28 19:00:05,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:00:05,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504922242] [2020-07-28 19:00:05,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:00:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:00:05,570 INFO L280 TraceCheckUtils]: 0: Hoare triple {9939#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,571 INFO L280 TraceCheckUtils]: 1: Hoare triple {9941#(= 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; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,572 INFO L280 TraceCheckUtils]: 2: Hoare triple {9941#(= 1 ~waterLevel~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,573 INFO L280 TraceCheckUtils]: 3: Hoare triple {9941#(= 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; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,574 INFO L280 TraceCheckUtils]: 4: Hoare triple {9941#(= 1 ~waterLevel~0)} assume 0 != main_~tmp~4; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,574 INFO L280 TraceCheckUtils]: 5: Hoare triple {9941#(= 1 ~waterLevel~0)} ~methAndRunningLastTime~0 := 0; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,575 INFO L280 TraceCheckUtils]: 6: Hoare triple {9941#(= 1 ~waterLevel~0)} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,576 INFO L280 TraceCheckUtils]: 7: Hoare triple {9941#(= 1 ~waterLevel~0)} assume !false; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,578 INFO L280 TraceCheckUtils]: 8: Hoare triple {9941#(= 1 ~waterLevel~0)} assume test_~splverifierCounter~0 < 4; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,579 INFO L280 TraceCheckUtils]: 9: Hoare triple {9941#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,579 INFO L280 TraceCheckUtils]: 10: Hoare triple {9941#(= 1 ~waterLevel~0)} assume !(0 != test_~tmp~0); {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,580 INFO L280 TraceCheckUtils]: 11: Hoare triple {9941#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,581 INFO L280 TraceCheckUtils]: 12: Hoare triple {9941#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___0~0; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,582 INFO L280 TraceCheckUtils]: 13: Hoare triple {9941#(= 1 ~waterLevel~0)} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,583 INFO L280 TraceCheckUtils]: 14: Hoare triple {9941#(= 1 ~waterLevel~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,583 INFO L280 TraceCheckUtils]: 15: Hoare triple {9941#(= 1 ~waterLevel~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,584 INFO L280 TraceCheckUtils]: 16: Hoare triple {9941#(= 1 ~waterLevel~0)} assume !(0 != ~pumpRunning~0); {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,585 INFO L280 TraceCheckUtils]: 17: Hoare triple {9941#(= 1 ~waterLevel~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,585 INFO L280 TraceCheckUtils]: 18: Hoare triple {9941#(= 1 ~waterLevel~0)} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {9941#(= 1 ~waterLevel~0)} is VALID [2020-07-28 19:00:05,586 INFO L280 TraceCheckUtils]: 19: Hoare triple {9941#(= 1 ~waterLevel~0)} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {9940#false} is VALID [2020-07-28 19:00:05,587 INFO L280 TraceCheckUtils]: 20: Hoare triple {9940#false} isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret23 && isHighWaterLevel_#t~ret23 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; {9940#false} is VALID [2020-07-28 19:00:05,587 INFO L280 TraceCheckUtils]: 21: Hoare triple {9940#false} assume !(0 != isHighWaterLevel_~tmp~3);isHighWaterLevel_~tmp___0~1 := 1; {9940#false} is VALID [2020-07-28 19:00:05,587 INFO L280 TraceCheckUtils]: 22: Hoare triple {9940#false} isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; {9940#false} is VALID [2020-07-28 19:00:05,587 INFO L280 TraceCheckUtils]: 23: Hoare triple {9940#false} processEnvironment_#t~ret4 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret4 && processEnvironment_#t~ret4 <= 2147483647;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; {9940#false} is VALID [2020-07-28 19:00:05,588 INFO L280 TraceCheckUtils]: 24: Hoare triple {9940#false} assume 0 != processEnvironment_~tmp~1;havoc activatePump_#t~ret5, activatePump_~tmp~2;havoc activatePump_~tmp~2;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret6, isMethaneAlarm_~retValue_acc~0;havoc isMethaneAlarm_~retValue_acc~0;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; {9940#false} is VALID [2020-07-28 19:00:05,588 INFO L280 TraceCheckUtils]: 25: Hoare triple {9940#false} isMethaneAlarm_#t~ret6 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret6 && isMethaneAlarm_#t~ret6 <= 2147483647;isMethaneAlarm_~retValue_acc~0 := isMethaneAlarm_#t~ret6;havoc isMethaneAlarm_#t~ret6;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~0; {9940#false} is VALID [2020-07-28 19:00:05,588 INFO L280 TraceCheckUtils]: 26: Hoare triple {9940#false} activatePump_#t~ret5 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret5 && activatePump_#t~ret5 <= 2147483647;activatePump_~tmp~2 := activatePump_#t~ret5;havoc activatePump_#t~ret5; {9940#false} is VALID [2020-07-28 19:00:05,588 INFO L280 TraceCheckUtils]: 27: Hoare triple {9940#false} assume !(0 != activatePump_~tmp~2);~pumpRunning~0 := 1; {9940#false} is VALID [2020-07-28 19:00:05,589 INFO L280 TraceCheckUtils]: 28: Hoare triple {9940#false} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {9940#false} is VALID [2020-07-28 19:00:05,589 INFO L280 TraceCheckUtils]: 29: Hoare triple {9940#false} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {9940#false} is VALID [2020-07-28 19:00:05,589 INFO L280 TraceCheckUtils]: 30: Hoare triple {9940#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {9940#false} is VALID [2020-07-28 19:00:05,589 INFO L280 TraceCheckUtils]: 31: Hoare triple {9940#false} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {9940#false} is VALID [2020-07-28 19:00:05,589 INFO L280 TraceCheckUtils]: 32: Hoare triple {9940#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {9940#false} is VALID [2020-07-28 19:00:05,590 INFO L280 TraceCheckUtils]: 33: Hoare triple {9940#false} assume 0 != ~methAndRunningLastTime~0; {9940#false} is VALID [2020-07-28 19:00:05,590 INFO L280 TraceCheckUtils]: 34: Hoare triple {9940#false} assume !false; {9940#false} is VALID [2020-07-28 19:00:05,593 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 19:00:05,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504922242] [2020-07-28 19:00:05,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:00:05,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:00:05,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630025657] [2020-07-28 19:00:05,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-07-28 19:00:05,596 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:00:05,596 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:00:05,640 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:05,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:00:05,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:00:05,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:00:05,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:00:05,641 INFO L87 Difference]: Start difference. First operand 221 states and 306 transitions. Second operand 3 states. [2020-07-28 19:00:06,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:06,438 INFO L93 Difference]: Finished difference Result 535 states and 735 transitions. [2020-07-28 19:00:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:00:06,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-07-28 19:00:06,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:00:06,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:00:06,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2020-07-28 19:00:06,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:00:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2020-07-28 19:00:06,446 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 145 transitions. [2020-07-28 19:00:06,616 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:06,627 INFO L225 Difference]: With dead ends: 535 [2020-07-28 19:00:06,627 INFO L226 Difference]: Without dead ends: 321 [2020-07-28 19:00:06,628 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 19:00:06,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-28 19:00:07,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2020-07-28 19:00:07,265 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:00:07,266 INFO L82 GeneralOperation]: Start isEquivalent. First operand 321 states. Second operand 321 states. [2020-07-28 19:00:07,266 INFO L74 IsIncluded]: Start isIncluded. First operand 321 states. Second operand 321 states. [2020-07-28 19:00:07,266 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 321 states. [2020-07-28 19:00:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:07,277 INFO L93 Difference]: Finished difference Result 321 states and 428 transitions. [2020-07-28 19:00:07,277 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 428 transitions. [2020-07-28 19:00:07,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:07,278 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:07,279 INFO L74 IsIncluded]: Start isIncluded. First operand 321 states. Second operand 321 states. [2020-07-28 19:00:07,279 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 321 states. [2020-07-28 19:00:07,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:07,288 INFO L93 Difference]: Finished difference Result 321 states and 428 transitions. [2020-07-28 19:00:07,288 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 428 transitions. [2020-07-28 19:00:07,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:07,289 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:07,290 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:00:07,290 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:00:07,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-28 19:00:07,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 428 transitions. [2020-07-28 19:00:07,300 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 428 transitions. Word has length 35 [2020-07-28 19:00:07,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:00:07,301 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 428 transitions. [2020-07-28 19:00:07,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:00:07,301 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 428 transitions. [2020-07-28 19:00:07,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-07-28 19:00:07,304 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:00:07,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:00:07,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 19:00:07,305 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:00:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:00:07,306 INFO L82 PathProgramCache]: Analyzing trace with hash -2015558942, now seen corresponding path program 1 times [2020-07-28 19:00:07,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:00:07,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017760573] [2020-07-28 19:00:07,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:00:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:00:07,455 INFO L280 TraceCheckUtils]: 0: Hoare triple {11788#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {11788#true} is VALID [2020-07-28 19:00:07,455 INFO L280 TraceCheckUtils]: 1: Hoare triple {11788#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {11788#true} is VALID [2020-07-28 19:00:07,456 INFO L280 TraceCheckUtils]: 2: Hoare triple {11788#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {11788#true} is VALID [2020-07-28 19:00:07,456 INFO L280 TraceCheckUtils]: 3: Hoare triple {11788#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; {11788#true} is VALID [2020-07-28 19:00:07,456 INFO L280 TraceCheckUtils]: 4: Hoare triple {11788#true} assume 0 != main_~tmp~4; {11788#true} is VALID [2020-07-28 19:00:07,456 INFO L280 TraceCheckUtils]: 5: Hoare triple {11788#true} ~methAndRunningLastTime~0 := 0; {11788#true} is VALID [2020-07-28 19:00:07,457 INFO L280 TraceCheckUtils]: 6: Hoare triple {11788#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {11788#true} is VALID [2020-07-28 19:00:07,457 INFO L280 TraceCheckUtils]: 7: Hoare triple {11788#true} assume !false; {11788#true} is VALID [2020-07-28 19:00:07,457 INFO L280 TraceCheckUtils]: 8: Hoare triple {11788#true} assume test_~splverifierCounter~0 < 4; {11788#true} is VALID [2020-07-28 19:00:07,457 INFO L280 TraceCheckUtils]: 9: Hoare triple {11788#true} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {11788#true} is VALID [2020-07-28 19:00:07,458 INFO L280 TraceCheckUtils]: 10: Hoare triple {11788#true} assume 0 != test_~tmp~0; {11788#true} is VALID [2020-07-28 19:00:07,458 INFO L280 TraceCheckUtils]: 11: Hoare triple {11788#true} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {11788#true} is VALID [2020-07-28 19:00:07,460 INFO L280 TraceCheckUtils]: 12: Hoare triple {11788#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {11788#true} is VALID [2020-07-28 19:00:07,460 INFO L280 TraceCheckUtils]: 13: Hoare triple {11788#true} assume 0 != test_~tmp___0~0; {11788#true} is VALID [2020-07-28 19:00:07,461 INFO L280 TraceCheckUtils]: 14: Hoare triple {11788#true} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {11790#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:00:07,462 INFO L280 TraceCheckUtils]: 15: Hoare triple {11790#(= 1 ~methaneLevelCritical~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {11790#(= 1 ~methaneLevelCritical~0)} is VALID [2020-07-28 19:00:07,463 INFO L280 TraceCheckUtils]: 16: Hoare triple {11790#(= 1 ~methaneLevelCritical~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {11791#(= ~methaneLevelCritical~0 ~systemActive~0)} is VALID [2020-07-28 19:00:07,463 INFO L280 TraceCheckUtils]: 17: Hoare triple {11791#(= ~methaneLevelCritical~0 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {11791#(= ~methaneLevelCritical~0 ~systemActive~0)} is VALID [2020-07-28 19:00:07,466 INFO L280 TraceCheckUtils]: 18: Hoare triple {11791#(= ~methaneLevelCritical~0 ~systemActive~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {11792#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 19:00:07,468 INFO L280 TraceCheckUtils]: 19: Hoare triple {11792#(not (= 0 ~methaneLevelCritical~0))} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {11792#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 19:00:07,468 INFO L280 TraceCheckUtils]: 20: Hoare triple {11792#(not (= 0 ~methaneLevelCritical~0))} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {11792#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 19:00:07,469 INFO L280 TraceCheckUtils]: 21: Hoare triple {11792#(not (= 0 ~methaneLevelCritical~0))} isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret23 && isHighWaterLevel_#t~ret23 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; {11792#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 19:00:07,470 INFO L280 TraceCheckUtils]: 22: Hoare triple {11792#(not (= 0 ~methaneLevelCritical~0))} assume !(0 != isHighWaterLevel_~tmp~3);isHighWaterLevel_~tmp___0~1 := 1; {11792#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 19:00:07,471 INFO L280 TraceCheckUtils]: 23: Hoare triple {11792#(not (= 0 ~methaneLevelCritical~0))} isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; {11792#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 19:00:07,472 INFO L280 TraceCheckUtils]: 24: Hoare triple {11792#(not (= 0 ~methaneLevelCritical~0))} processEnvironment_#t~ret4 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret4 && processEnvironment_#t~ret4 <= 2147483647;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; {11792#(not (= 0 ~methaneLevelCritical~0))} is VALID [2020-07-28 19:00:07,479 INFO L280 TraceCheckUtils]: 25: Hoare triple {11792#(not (= 0 ~methaneLevelCritical~0))} assume 0 != processEnvironment_~tmp~1;havoc activatePump_#t~ret5, activatePump_~tmp~2;havoc activatePump_~tmp~2;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret6, isMethaneAlarm_~retValue_acc~0;havoc isMethaneAlarm_~retValue_acc~0;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; {11793#(not (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|))} is VALID [2020-07-28 19:00:07,480 INFO L280 TraceCheckUtils]: 26: Hoare triple {11793#(not (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|))} isMethaneAlarm_#t~ret6 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret6 && isMethaneAlarm_#t~ret6 <= 2147483647;isMethaneAlarm_~retValue_acc~0 := isMethaneAlarm_#t~ret6;havoc isMethaneAlarm_#t~ret6;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~0; {11794#(not (= 0 |ULTIMATE.start_isMethaneAlarm_#res|))} is VALID [2020-07-28 19:00:07,481 INFO L280 TraceCheckUtils]: 27: Hoare triple {11794#(not (= 0 |ULTIMATE.start_isMethaneAlarm_#res|))} activatePump_#t~ret5 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret5 && activatePump_#t~ret5 <= 2147483647;activatePump_~tmp~2 := activatePump_#t~ret5;havoc activatePump_#t~ret5; {11795#(not (= 0 ULTIMATE.start_activatePump_~tmp~2))} is VALID [2020-07-28 19:00:07,482 INFO L280 TraceCheckUtils]: 28: Hoare triple {11795#(not (= 0 ULTIMATE.start_activatePump_~tmp~2))} assume !(0 != activatePump_~tmp~2);~pumpRunning~0 := 1; {11789#false} is VALID [2020-07-28 19:00:07,482 INFO L280 TraceCheckUtils]: 29: Hoare triple {11789#false} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {11789#false} is VALID [2020-07-28 19:00:07,482 INFO L280 TraceCheckUtils]: 30: Hoare triple {11789#false} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {11789#false} is VALID [2020-07-28 19:00:07,482 INFO L280 TraceCheckUtils]: 31: Hoare triple {11789#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {11789#false} is VALID [2020-07-28 19:00:07,482 INFO L280 TraceCheckUtils]: 32: Hoare triple {11789#false} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {11789#false} is VALID [2020-07-28 19:00:07,483 INFO L280 TraceCheckUtils]: 33: Hoare triple {11789#false} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {11789#false} is VALID [2020-07-28 19:00:07,483 INFO L280 TraceCheckUtils]: 34: Hoare triple {11789#false} assume 0 != ~methAndRunningLastTime~0; {11789#false} is VALID [2020-07-28 19:00:07,483 INFO L280 TraceCheckUtils]: 35: Hoare triple {11789#false} assume !false; {11789#false} is VALID [2020-07-28 19:00:07,484 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 19:00:07,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017760573] [2020-07-28 19:00:07,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:00:07,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-28 19:00:07,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271867044] [2020-07-28 19:00:07,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-07-28 19:00:07,485 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:00:07,485 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 19:00:07,528 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:07,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 19:00:07,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:00:07,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 19:00:07,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-28 19:00:07,529 INFO L87 Difference]: Start difference. First operand 321 states and 428 transitions. Second operand 8 states. [2020-07-28 19:00:12,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:12,150 INFO L93 Difference]: Finished difference Result 1403 states and 1854 transitions. [2020-07-28 19:00:12,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-28 19:00:12,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-07-28 19:00:12,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:00:12,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 19:00:12,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 599 transitions. [2020-07-28 19:00:12,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 19:00:12,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 599 transitions. [2020-07-28 19:00:12,159 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states and 599 transitions. [2020-07-28 19:00:12,885 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 599 edges. 599 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:12,952 INFO L225 Difference]: With dead ends: 1403 [2020-07-28 19:00:12,953 INFO L226 Difference]: Without dead ends: 1089 [2020-07-28 19:00:12,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2020-07-28 19:00:12,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-07-28 19:00:13,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 321. [2020-07-28 19:00:13,634 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:00:13,634 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1089 states. Second operand 321 states. [2020-07-28 19:00:13,635 INFO L74 IsIncluded]: Start isIncluded. First operand 1089 states. Second operand 321 states. [2020-07-28 19:00:13,635 INFO L87 Difference]: Start difference. First operand 1089 states. Second operand 321 states. [2020-07-28 19:00:13,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:13,681 INFO L93 Difference]: Finished difference Result 1089 states and 1415 transitions. [2020-07-28 19:00:13,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1415 transitions. [2020-07-28 19:00:13,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:13,684 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:13,684 INFO L74 IsIncluded]: Start isIncluded. First operand 321 states. Second operand 1089 states. [2020-07-28 19:00:13,684 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 1089 states. [2020-07-28 19:00:13,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:13,741 INFO L93 Difference]: Finished difference Result 1089 states and 1415 transitions. [2020-07-28 19:00:13,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1415 transitions. [2020-07-28 19:00:13,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:13,744 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:13,745 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:00:13,745 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:00:13,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-28 19:00:13,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 420 transitions. [2020-07-28 19:00:13,753 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 420 transitions. Word has length 36 [2020-07-28 19:00:13,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:00:13,754 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 420 transitions. [2020-07-28 19:00:13,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 19:00:13,754 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 420 transitions. [2020-07-28 19:00:13,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-28 19:00:13,756 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:00:13,756 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-07-28 19:00:13,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 19:00:13,757 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:00:13,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:00:13,757 INFO L82 PathProgramCache]: Analyzing trace with hash -59965040, now seen corresponding path program 1 times [2020-07-28 19:00:13,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:00:13,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986930739] [2020-07-28 19:00:13,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:00:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:00:13,815 INFO L280 TraceCheckUtils]: 0: Hoare triple {16454#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {16454#true} is VALID [2020-07-28 19:00:13,816 INFO L280 TraceCheckUtils]: 1: Hoare triple {16454#true} havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; {16454#true} is VALID [2020-07-28 19:00:13,816 INFO L280 TraceCheckUtils]: 2: Hoare triple {16454#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {16454#true} is VALID [2020-07-28 19:00:13,817 INFO L280 TraceCheckUtils]: 3: Hoare triple {16454#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; {16454#true} is VALID [2020-07-28 19:00:13,817 INFO L280 TraceCheckUtils]: 4: Hoare triple {16454#true} assume 0 != main_~tmp~4; {16454#true} is VALID [2020-07-28 19:00:13,817 INFO L280 TraceCheckUtils]: 5: Hoare triple {16454#true} ~methAndRunningLastTime~0 := 0; {16454#true} is VALID [2020-07-28 19:00:13,817 INFO L280 TraceCheckUtils]: 6: Hoare triple {16454#true} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {16454#true} is VALID [2020-07-28 19:00:13,817 INFO L280 TraceCheckUtils]: 7: Hoare triple {16454#true} assume !false; {16454#true} is VALID [2020-07-28 19:00:13,818 INFO L280 TraceCheckUtils]: 8: Hoare triple {16454#true} assume test_~splverifierCounter~0 < 4; {16454#true} is VALID [2020-07-28 19:00:13,818 INFO L280 TraceCheckUtils]: 9: Hoare triple {16454#true} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {16454#true} is VALID [2020-07-28 19:00:13,818 INFO L280 TraceCheckUtils]: 10: Hoare triple {16454#true} assume 0 != test_~tmp~0; {16454#true} is VALID [2020-07-28 19:00:13,818 INFO L280 TraceCheckUtils]: 11: Hoare triple {16454#true} assume ~waterLevel~0 < 2;~waterLevel~0 := 1 + ~waterLevel~0; {16454#true} is VALID [2020-07-28 19:00:13,818 INFO L280 TraceCheckUtils]: 12: Hoare triple {16454#true} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {16454#true} is VALID [2020-07-28 19:00:13,819 INFO L280 TraceCheckUtils]: 13: Hoare triple {16454#true} assume !(0 != test_~tmp___0~0); {16454#true} is VALID [2020-07-28 19:00:13,819 INFO L280 TraceCheckUtils]: 14: Hoare triple {16454#true} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {16454#true} is VALID [2020-07-28 19:00:13,819 INFO L280 TraceCheckUtils]: 15: Hoare triple {16454#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {16454#true} is VALID [2020-07-28 19:00:13,820 INFO L280 TraceCheckUtils]: 16: Hoare triple {16454#true} assume !(0 != ~pumpRunning~0); {16454#true} is VALID [2020-07-28 19:00:13,820 INFO L280 TraceCheckUtils]: 17: Hoare triple {16454#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {16454#true} is VALID [2020-07-28 19:00:13,820 INFO L280 TraceCheckUtils]: 18: Hoare triple {16454#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; {16454#true} is VALID [2020-07-28 19:00:13,820 INFO L280 TraceCheckUtils]: 19: Hoare triple {16454#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; {16454#true} is VALID [2020-07-28 19:00:13,821 INFO L280 TraceCheckUtils]: 20: Hoare triple {16454#true} isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;assume -2147483648 <= isHighWaterLevel_#t~ret23 && isHighWaterLevel_#t~ret23 <= 2147483647;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; {16454#true} is VALID [2020-07-28 19:00:13,821 INFO L280 TraceCheckUtils]: 21: Hoare triple {16454#true} assume !(0 != isHighWaterLevel_~tmp~3);isHighWaterLevel_~tmp___0~1 := 1; {16454#true} is VALID [2020-07-28 19:00:13,821 INFO L280 TraceCheckUtils]: 22: Hoare triple {16454#true} isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; {16454#true} is VALID [2020-07-28 19:00:13,822 INFO L280 TraceCheckUtils]: 23: Hoare triple {16454#true} processEnvironment_#t~ret4 := isHighWaterLevel_#res;assume -2147483648 <= processEnvironment_#t~ret4 && processEnvironment_#t~ret4 <= 2147483647;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; {16454#true} is VALID [2020-07-28 19:00:13,822 INFO L280 TraceCheckUtils]: 24: Hoare triple {16454#true} assume 0 != processEnvironment_~tmp~1;havoc activatePump_#t~ret5, activatePump_~tmp~2;havoc activatePump_~tmp~2;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret6, isMethaneAlarm_~retValue_acc~0;havoc isMethaneAlarm_~retValue_acc~0;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; {16454#true} is VALID [2020-07-28 19:00:13,822 INFO L280 TraceCheckUtils]: 25: Hoare triple {16454#true} isMethaneAlarm_#t~ret6 := isMethaneLevelCritical_#res;assume -2147483648 <= isMethaneAlarm_#t~ret6 && isMethaneAlarm_#t~ret6 <= 2147483647;isMethaneAlarm_~retValue_acc~0 := isMethaneAlarm_#t~ret6;havoc isMethaneAlarm_#t~ret6;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~0; {16454#true} is VALID [2020-07-28 19:00:13,823 INFO L280 TraceCheckUtils]: 26: Hoare triple {16454#true} activatePump_#t~ret5 := isMethaneAlarm_#res;assume -2147483648 <= activatePump_#t~ret5 && activatePump_#t~ret5 <= 2147483647;activatePump_~tmp~2 := activatePump_#t~ret5;havoc activatePump_#t~ret5; {16454#true} is VALID [2020-07-28 19:00:13,823 INFO L280 TraceCheckUtils]: 27: Hoare triple {16454#true} assume !(0 != activatePump_~tmp~2);~pumpRunning~0 := 1; {16454#true} is VALID [2020-07-28 19:00:13,823 INFO L280 TraceCheckUtils]: 28: Hoare triple {16454#true} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {16454#true} is VALID [2020-07-28 19:00:13,823 INFO L280 TraceCheckUtils]: 29: Hoare triple {16454#true} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {16454#true} is VALID [2020-07-28 19:00:13,825 INFO L280 TraceCheckUtils]: 30: Hoare triple {16454#true} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,826 INFO L280 TraceCheckUtils]: 31: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume !false; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,827 INFO L280 TraceCheckUtils]: 32: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume test_~splverifierCounter~0 < 4; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,827 INFO L280 TraceCheckUtils]: 33: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume -2147483648 <= test_#t~nondet0 && test_#t~nondet0 <= 2147483647;test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,828 INFO L280 TraceCheckUtils]: 34: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume !(0 != test_~tmp~0); {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,829 INFO L280 TraceCheckUtils]: 35: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume -2147483648 <= test_#t~nondet1 && test_#t~nondet1 <= 2147483647;test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,830 INFO L280 TraceCheckUtils]: 36: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume 0 != test_~tmp___0~0; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,830 INFO L280 TraceCheckUtils]: 37: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume !(0 != ~methaneLevelCritical~0);~methaneLevelCritical~0 := 1; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,831 INFO L280 TraceCheckUtils]: 38: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume -2147483648 <= test_#t~nondet2 && test_#t~nondet2 <= 2147483647;test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,831 INFO L280 TraceCheckUtils]: 39: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,832 INFO L280 TraceCheckUtils]: 40: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume 0 != ~pumpRunning~0; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,833 INFO L280 TraceCheckUtils]: 41: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume ~waterLevel~0 > 0;~waterLevel~0 := ~waterLevel~0 - 1; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,834 INFO L280 TraceCheckUtils]: 42: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,834 INFO L280 TraceCheckUtils]: 43: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume !(0 == ~pumpRunning~0); {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,835 INFO L280 TraceCheckUtils]: 44: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,836 INFO L280 TraceCheckUtils]: 45: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret26 && __utac_acc__Specification2_spec__2_#t~ret26 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,837 INFO L280 TraceCheckUtils]: 46: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume 0 != __utac_acc__Specification2_spec__2_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,838 INFO L280 TraceCheckUtils]: 47: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} __utac_acc__Specification2_spec__2_#t~ret27 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification2_spec__2_#t~ret27 && __utac_acc__Specification2_spec__2_#t~ret27 <= 2147483647;__utac_acc__Specification2_spec__2_~tmp___0~2 := __utac_acc__Specification2_spec__2_#t~ret27;havoc __utac_acc__Specification2_spec__2_#t~ret27; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,838 INFO L280 TraceCheckUtils]: 48: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume 0 != __utac_acc__Specification2_spec__2_~tmp___0~2; {16456#(= 0 ~methAndRunningLastTime~0)} is VALID [2020-07-28 19:00:13,839 INFO L280 TraceCheckUtils]: 49: Hoare triple {16456#(= 0 ~methAndRunningLastTime~0)} assume 0 != ~methAndRunningLastTime~0; {16455#false} is VALID [2020-07-28 19:00:13,839 INFO L280 TraceCheckUtils]: 50: Hoare triple {16455#false} assume !false; {16455#false} is VALID [2020-07-28 19:00:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 19:00:13,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986930739] [2020-07-28 19:00:13,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:00:13,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:00:13,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528496776] [2020-07-28 19:00:13,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-28 19:00:13,844 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:00:13,844 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:00:13,904 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:13,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:00:13,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:00:13,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:00:13,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:00:13,905 INFO L87 Difference]: Start difference. First operand 321 states and 420 transitions. Second operand 3 states. [2020-07-28 19:00:15,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:15,266 INFO L93 Difference]: Finished difference Result 471 states and 623 transitions. [2020-07-28 19:00:15,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:00:15,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-28 19:00:15,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:00:15,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:00:15,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2020-07-28 19:00:15,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:00:15,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2020-07-28 19:00:15,288 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 108 transitions. [2020-07-28 19:00:15,412 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:00:15,425 INFO L225 Difference]: With dead ends: 471 [2020-07-28 19:00:15,425 INFO L226 Difference]: Without dead ends: 469 [2020-07-28 19:00:15,425 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 19:00:15,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-28 19:00:16,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 361. [2020-07-28 19:00:16,216 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:00:16,216 INFO L82 GeneralOperation]: Start isEquivalent. First operand 469 states. Second operand 361 states. [2020-07-28 19:00:16,216 INFO L74 IsIncluded]: Start isIncluded. First operand 469 states. Second operand 361 states. [2020-07-28 19:00:16,216 INFO L87 Difference]: Start difference. First operand 469 states. Second operand 361 states. [2020-07-28 19:00:16,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:16,230 INFO L93 Difference]: Finished difference Result 469 states and 620 transitions. [2020-07-28 19:00:16,230 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 620 transitions. [2020-07-28 19:00:16,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:16,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:16,231 INFO L74 IsIncluded]: Start isIncluded. First operand 361 states. Second operand 469 states. [2020-07-28 19:00:16,231 INFO L87 Difference]: Start difference. First operand 361 states. Second operand 469 states. [2020-07-28 19:00:16,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:00:16,245 INFO L93 Difference]: Finished difference Result 469 states and 620 transitions. [2020-07-28 19:00:16,245 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 620 transitions. [2020-07-28 19:00:16,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:00:16,245 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:00:16,246 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:00:16,246 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:00:16,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-07-28 19:00:16,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2020-07-28 19:00:16,253 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 481 transitions. Word has length 51 [2020-07-28 19:00:16,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:00:16,253 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 481 transitions. [2020-07-28 19:00:16,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:00:16,253 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 481 transitions. [2020-07-28 19:00:16,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-28 19:00:16,254 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:00:16,255 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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 19:00:16,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-28 19:00:16,255 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:00:16,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:00:16,256 INFO L82 PathProgramCache]: Analyzing trace with hash -376855367, now seen corresponding path program 1 times [2020-07-28 19:00:16,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:00:16,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097390490] [2020-07-28 19:00:16,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:00:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:00:16,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:00:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:00:16,361 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:00:16,448 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 19:00:16,449 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 19:00:16,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-28 19:00:16,757 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 19:00:16,757 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 19:00:16,758 WARN L170 areAnnotationChecker]: L351 has no Hoare annotation [2020-07-28 19:00:16,758 WARN L170 areAnnotationChecker]: L359 has no Hoare annotation [2020-07-28 19:00:16,758 WARN L170 areAnnotationChecker]: L448 has no Hoare annotation [2020-07-28 19:00:16,758 WARN L170 areAnnotationChecker]: L448 has no Hoare annotation [2020-07-28 19:00:16,758 WARN L170 areAnnotationChecker]: L423 has no Hoare annotation [2020-07-28 19:00:16,759 WARN L170 areAnnotationChecker]: L448-1 has no Hoare annotation [2020-07-28 19:00:16,759 WARN L170 areAnnotationChecker]: L468 has no Hoare annotation [2020-07-28 19:00:16,759 WARN L170 areAnnotationChecker]: L457 has no Hoare annotation [2020-07-28 19:00:16,759 WARN L170 areAnnotationChecker]: L479-1 has no Hoare annotation [2020-07-28 19:00:16,759 WARN L170 areAnnotationChecker]: L479-1 has no Hoare annotation [2020-07-28 19:00:16,759 WARN L170 areAnnotationChecker]: L479-1 has no Hoare annotation [2020-07-28 19:00:16,760 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 19:00:16,760 WARN L170 areAnnotationChecker]: L115 has no Hoare annotation [2020-07-28 19:00:16,760 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 19:00:16,760 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 19:00:16,760 WARN L170 areAnnotationChecker]: L140-1 has no Hoare annotation [2020-07-28 19:00:16,760 WARN L170 areAnnotationChecker]: L140-1 has no Hoare annotation [2020-07-28 19:00:16,761 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-28 19:00:16,761 WARN L170 areAnnotationChecker]: L508-3 has no Hoare annotation [2020-07-28 19:00:16,761 WARN L170 areAnnotationChecker]: L508-3 has no Hoare annotation [2020-07-28 19:00:16,761 WARN L170 areAnnotationChecker]: L140-2 has no Hoare annotation [2020-07-28 19:00:16,761 WARN L170 areAnnotationChecker]: L140-2 has no Hoare annotation [2020-07-28 19:00:16,761 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-28 19:00:16,761 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-28 19:00:16,762 WARN L170 areAnnotationChecker]: L172-1 has no Hoare annotation [2020-07-28 19:00:16,762 WARN L170 areAnnotationChecker]: L172-1 has no Hoare annotation [2020-07-28 19:00:16,762 WARN L170 areAnnotationChecker]: L147-1 has no Hoare annotation [2020-07-28 19:00:16,762 WARN L170 areAnnotationChecker]: L520 has no Hoare annotation [2020-07-28 19:00:16,762 WARN L170 areAnnotationChecker]: L520 has no Hoare annotation [2020-07-28 19:00:16,762 WARN L170 areAnnotationChecker]: L75-1 has no Hoare annotation [2020-07-28 19:00:16,763 WARN L170 areAnnotationChecker]: L585-1 has no Hoare annotation [2020-07-28 19:00:16,763 WARN L170 areAnnotationChecker]: L585-1 has no Hoare annotation [2020-07-28 19:00:16,763 WARN L170 areAnnotationChecker]: L545-3 has no Hoare annotation [2020-07-28 19:00:16,763 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2020-07-28 19:00:16,763 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2020-07-28 19:00:16,763 WARN L170 areAnnotationChecker]: L590-1 has no Hoare annotation [2020-07-28 19:00:16,763 WARN L170 areAnnotationChecker]: L479-2 has no Hoare annotation [2020-07-28 19:00:16,764 WARN L170 areAnnotationChecker]: L479-2 has no Hoare annotation [2020-07-28 19:00:16,764 WARN L170 areAnnotationChecker]: L532 has no Hoare annotation [2020-07-28 19:00:16,764 WARN L170 areAnnotationChecker]: L532 has no Hoare annotation [2020-07-28 19:00:16,764 WARN L170 areAnnotationChecker]: L85-1 has no Hoare annotation [2020-07-28 19:00:16,764 WARN L170 areAnnotationChecker]: L292-3 has no Hoare annotation [2020-07-28 19:00:16,764 WARN L170 areAnnotationChecker]: L292-3 has no Hoare annotation [2020-07-28 19:00:16,765 WARN L170 areAnnotationChecker]: L243-1 has no Hoare annotation [2020-07-28 19:00:16,765 WARN L170 areAnnotationChecker]: L479-3 has no Hoare annotation [2020-07-28 19:00:16,765 WARN L170 areAnnotationChecker]: L95 has no Hoare annotation [2020-07-28 19:00:16,765 WARN L170 areAnnotationChecker]: L95 has no Hoare annotation [2020-07-28 19:00:16,765 WARN L170 areAnnotationChecker]: L292-5 has no Hoare annotation [2020-07-28 19:00:16,765 WARN L170 areAnnotationChecker]: L483-2 has no Hoare annotation [2020-07-28 19:00:16,766 WARN L170 areAnnotationChecker]: L483-2 has no Hoare annotation [2020-07-28 19:00:16,766 WARN L170 areAnnotationChecker]: L375-2 has no Hoare annotation [2020-07-28 19:00:16,766 WARN L170 areAnnotationChecker]: L375-2 has no Hoare annotation [2020-07-28 19:00:16,766 WARN L170 areAnnotationChecker]: L375-2 has no Hoare annotation [2020-07-28 19:00:16,766 WARN L170 areAnnotationChecker]: L103-1 has no Hoare annotation [2020-07-28 19:00:16,766 WARN L170 areAnnotationChecker]: L103-1 has no Hoare annotation [2020-07-28 19:00:16,766 WARN L170 areAnnotationChecker]: L103 has no Hoare annotation [2020-07-28 19:00:16,767 WARN L170 areAnnotationChecker]: L103 has no Hoare annotation [2020-07-28 19:00:16,767 WARN L170 areAnnotationChecker]: L298-1 has no Hoare annotation [2020-07-28 19:00:16,767 WARN L170 areAnnotationChecker]: L484-2 has no Hoare annotation [2020-07-28 19:00:16,767 WARN L170 areAnnotationChecker]: L484-2 has no Hoare annotation [2020-07-28 19:00:16,767 WARN L170 areAnnotationChecker]: L376 has no Hoare annotation [2020-07-28 19:00:16,767 WARN L170 areAnnotationChecker]: L508 has no Hoare annotation [2020-07-28 19:00:16,768 WARN L170 areAnnotationChecker]: L508 has no Hoare annotation [2020-07-28 19:00:16,768 WARN L170 areAnnotationChecker]: L140 has no Hoare annotation [2020-07-28 19:00:16,768 WARN L170 areAnnotationChecker]: L140 has no Hoare annotation [2020-07-28 19:00:16,768 WARN L170 areAnnotationChecker]: L306 has no Hoare annotation [2020-07-28 19:00:16,768 WARN L170 areAnnotationChecker]: L306 has no Hoare annotation [2020-07-28 19:00:16,768 WARN L170 areAnnotationChecker]: L176-1 has no Hoare annotation [2020-07-28 19:00:16,769 WARN L170 areAnnotationChecker]: L176-1 has no Hoare annotation [2020-07-28 19:00:16,769 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2020-07-28 19:00:16,769 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2020-07-28 19:00:16,769 WARN L170 areAnnotationChecker]: L379 has no Hoare annotation [2020-07-28 19:00:16,769 WARN L170 areAnnotationChecker]: L379 has no Hoare annotation [2020-07-28 19:00:16,769 WARN L170 areAnnotationChecker]: L172 has no Hoare annotation [2020-07-28 19:00:16,770 WARN L170 areAnnotationChecker]: L172 has no Hoare annotation [2020-07-28 19:00:16,770 WARN L170 areAnnotationChecker]: L147 has no Hoare annotation [2020-07-28 19:00:16,770 WARN L170 areAnnotationChecker]: L306-1 has no Hoare annotation [2020-07-28 19:00:16,770 WARN L170 areAnnotationChecker]: L545-2 has no Hoare annotation [2020-07-28 19:00:16,770 WARN L170 areAnnotationChecker]: L379-1 has no Hoare annotation [2020-07-28 19:00:16,770 WARN L170 areAnnotationChecker]: L379-1 has no Hoare annotation [2020-07-28 19:00:16,770 WARN L170 areAnnotationChecker]: L585 has no Hoare annotation [2020-07-28 19:00:16,771 WARN L170 areAnnotationChecker]: L585 has no Hoare annotation [2020-07-28 19:00:16,771 WARN L170 areAnnotationChecker]: L545-1 has no Hoare annotation [2020-07-28 19:00:16,771 WARN L170 areAnnotationChecker]: L234-1 has no Hoare annotation [2020-07-28 19:00:16,771 WARN L170 areAnnotationChecker]: L508-6 has no Hoare annotation [2020-07-28 19:00:16,771 WARN L170 areAnnotationChecker]: L508-6 has no Hoare annotation [2020-07-28 19:00:16,772 WARN L170 areAnnotationChecker]: L140-3 has no Hoare annotation [2020-07-28 19:00:16,772 WARN L170 areAnnotationChecker]: L140-3 has no Hoare annotation [2020-07-28 19:00:16,772 WARN L170 areAnnotationChecker]: L590 has no Hoare annotation [2020-07-28 19:00:16,772 WARN L170 areAnnotationChecker]: L479 has no Hoare annotation [2020-07-28 19:00:16,772 WARN L170 areAnnotationChecker]: L479 has no Hoare annotation [2020-07-28 19:00:16,772 WARN L170 areAnnotationChecker]: L209-2 has no Hoare annotation [2020-07-28 19:00:16,773 WARN L170 areAnnotationChecker]: L209-2 has no Hoare annotation [2020-07-28 19:00:16,773 WARN L170 areAnnotationChecker]: L172-2 has no Hoare annotation [2020-07-28 19:00:16,773 WARN L170 areAnnotationChecker]: L172-2 has no Hoare annotation [2020-07-28 19:00:16,773 WARN L170 areAnnotationChecker]: L147-2 has no Hoare annotation [2020-07-28 19:00:16,773 WARN L170 areAnnotationChecker]: L292 has no Hoare annotation [2020-07-28 19:00:16,773 WARN L170 areAnnotationChecker]: L292 has no Hoare annotation [2020-07-28 19:00:16,773 WARN L170 areAnnotationChecker]: L243 has no Hoare annotation [2020-07-28 19:00:16,774 WARN L170 areAnnotationChecker]: L585-2 has no Hoare annotation [2020-07-28 19:00:16,774 WARN L170 areAnnotationChecker]: L585-2 has no Hoare annotation [2020-07-28 19:00:16,774 WARN L170 areAnnotationChecker]: L545-5 has no Hoare annotation [2020-07-28 19:00:16,774 WARN L170 areAnnotationChecker]: L292-2 has no Hoare annotation [2020-07-28 19:00:16,774 WARN L170 areAnnotationChecker]: L483 has no Hoare annotation [2020-07-28 19:00:16,774 WARN L170 areAnnotationChecker]: L483 has no Hoare annotation [2020-07-28 19:00:16,775 WARN L170 areAnnotationChecker]: L590-2 has no Hoare annotation [2020-07-28 19:00:16,775 WARN L170 areAnnotationChecker]: L479-4 has no Hoare annotation [2020-07-28 19:00:16,775 WARN L170 areAnnotationChecker]: L479-4 has no Hoare annotation [2020-07-28 19:00:16,775 WARN L170 areAnnotationChecker]: L298 has no Hoare annotation [2020-07-28 19:00:16,775 WARN L170 areAnnotationChecker]: L484 has no Hoare annotation [2020-07-28 19:00:16,775 WARN L170 areAnnotationChecker]: L484 has no Hoare annotation [2020-07-28 19:00:16,776 WARN L170 areAnnotationChecker]: L292-6 has no Hoare annotation [2020-07-28 19:00:16,776 WARN L170 areAnnotationChecker]: L292-6 has no Hoare annotation [2020-07-28 19:00:16,776 WARN L170 areAnnotationChecker]: L243-2 has no Hoare annotation [2020-07-28 19:00:16,776 WARN L170 areAnnotationChecker]: L479-5 has no Hoare annotation [2020-07-28 19:00:16,776 WARN L170 areAnnotationChecker]: L176 has no Hoare annotation [2020-07-28 19:00:16,776 WARN L170 areAnnotationChecker]: L176 has no Hoare annotation [2020-07-28 19:00:16,777 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-28 19:00:16,777 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-28 19:00:16,777 WARN L170 areAnnotationChecker]: L292-8 has no Hoare annotation [2020-07-28 19:00:16,777 WARN L170 areAnnotationChecker]: L483-4 has no Hoare annotation [2020-07-28 19:00:16,777 WARN L170 areAnnotationChecker]: L483-4 has no Hoare annotation [2020-07-28 19:00:16,778 WARN L170 areAnnotationChecker]: L545 has no Hoare annotation [2020-07-28 19:00:16,778 WARN L170 areAnnotationChecker]: L298-2 has no Hoare annotation [2020-07-28 19:00:16,778 WARN L170 areAnnotationChecker]: L484-4 has no Hoare annotation [2020-07-28 19:00:16,778 WARN L170 areAnnotationChecker]: L484-4 has no Hoare annotation [2020-07-28 19:00:16,778 WARN L170 areAnnotationChecker]: L234 has no Hoare annotation [2020-07-28 19:00:16,778 WARN L170 areAnnotationChecker]: L176-2 has no Hoare annotation [2020-07-28 19:00:16,779 WARN L170 areAnnotationChecker]: L176-2 has no Hoare annotation [2020-07-28 19:00:16,779 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2020-07-28 19:00:16,779 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2020-07-28 19:00:16,779 WARN L170 areAnnotationChecker]: L209 has no Hoare annotation [2020-07-28 19:00:16,779 WARN L170 areAnnotationChecker]: L209 has no Hoare annotation [2020-07-28 19:00:16,779 WARN L170 areAnnotationChecker]: L545-4 has no Hoare annotation [2020-07-28 19:00:16,780 WARN L170 areAnnotationChecker]: L234-2 has no Hoare annotation [2020-07-28 19:00:16,780 WARN L170 areAnnotationChecker]: L209-4 has no Hoare annotation [2020-07-28 19:00:16,780 WARN L170 areAnnotationChecker]: L209-4 has no Hoare annotation [2020-07-28 19:00:16,780 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 19:00:16,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 07:00:16 BoogieIcfgContainer [2020-07-28 19:00:16,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 19:00:16,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 19:00:16,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 19:00:16,787 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 19:00:16,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:59:53" (3/4) ... [2020-07-28 19:00:16,790 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 19:00:17,042 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 19:00:17,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 19:00:17,045 INFO L168 Benchmark]: Toolchain (without parser) took 25754.49 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 483.9 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). Peak memory consumption was 343.3 MB. Max. memory is 11.5 GB. [2020-07-28 19:00:17,046 INFO L168 Benchmark]: CDTParser took 0.34 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 19:00:17,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 19:00:17,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 19:00:17,047 INFO L168 Benchmark]: Boogie Preprocessor took 68.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 19:00:17,047 INFO L168 Benchmark]: RCFGBuilder took 1602.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 932.0 MB in the end (delta: 154.1 MB). Peak memory consumption was 154.1 MB. Max. memory is 11.5 GB. [2020-07-28 19:00:17,048 INFO L168 Benchmark]: TraceAbstraction took 22967.00 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 360.2 MB). Free memory was 932.0 MB in the beginning and 1.2 GB in the end (delta: -233.5 MB). Peak memory consumption was 126.7 MB. Max. memory is 11.5 GB. [2020-07-28 19:00:17,048 INFO L168 Benchmark]: Witness Printer took 256.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2020-07-28 19:00:17,050 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 0.34 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 763.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1602.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 932.0 MB in the end (delta: 154.1 MB). Peak memory consumption was 154.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22967.00 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 360.2 MB). Free memory was 932.0 MB in the beginning and 1.2 GB in the end (delta: -233.5 MB). Peak memory consumption was 126.7 MB. Max. memory is 11.5 GB. * Witness Printer took 256.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L132] int pumpRunning = 0; [L133] int systemActive = 1; [L364] int cleanupTimeShifts = 4; [L462] int methAndRunningLastTime ; [L502] int waterLevel = 1; [L503] int methaneLevelCritical = 0; [L765] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L439] int retValue_acc ; [L440] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L355] int retValue_acc ; [L358] retValue_acc = 1 [L359] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L446] tmp = valid_product() [L448] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L467] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] COND TRUE waterLevel < 2 [L521] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L321] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] COND TRUE \read(systemActive) [L169] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND TRUE ! pumpRunning [L284] int retValue_acc ; [L285] int tmp ; [L286] int tmp___0 ; [L582] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L585] COND FALSE !(waterLevel < 2) [L589] retValue_acc = 0 [L590] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L290] tmp = isHighWaterSensorDry() [L292] COND FALSE !(\read(tmp)) [L295] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L297] retValue_acc = tmp___0 [L298] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] tmp = isHighWaterLevel() [L176] COND TRUE \read(tmp) [L203] int tmp ; [L228] int retValue_acc ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] retValue_acc = isMethaneLevelCritical() [L234] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L207] tmp = isMethaneAlarm() [L209] COND FALSE !(\read(tmp)) [L197] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L477] tmp = isMethaneLevelCritical() [L479] COND FALSE !(\read(tmp)) [L495] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L532] COND FALSE !(\read(methaneLevelCritical)) [L535] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L321] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L140] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] COND TRUE waterLevel > 0 [L509] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L147] COND TRUE \read(systemActive) [L169] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L172] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L477] tmp = isMethaneLevelCritical() [L479] COND TRUE \read(tmp) [L239] int retValue_acc ; [L242] retValue_acc = pumpRunning [L243] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L481] tmp___0 = isPumpRunning() [L483] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L484] COND FALSE !(\read(methAndRunningLastTime)) [L489] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L321] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L140] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L508] COND TRUE waterLevel > 0 [L509] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L147] COND TRUE \read(systemActive) [L169] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L172] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L477] tmp = isMethaneLevelCritical() [L479] COND TRUE \read(tmp) [L239] int retValue_acc ; [L242] retValue_acc = pumpRunning [L243] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L481] tmp___0 = isPumpRunning() [L483] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L484] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 93 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.5s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 15.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 966 SDtfs, 1176 SDslu, 1883 SDs, 0 SdLazy, 265 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=361occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 1726 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 18652 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 14/14 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...