./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product08.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_spec3_product08.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 7ed6f6fcca911d6d9d1e7f48bc21f435c586726c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 19:01:09,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 19:01:09,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 19:01:09,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 19:01:09,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 19:01:09,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 19:01:09,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 19:01:09,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 19:01:09,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 19:01:09,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 19:01:09,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 19:01:09,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 19:01:09,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 19:01:09,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 19:01:09,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 19:01:09,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 19:01:09,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 19:01:09,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 19:01:09,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 19:01:09,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 19:01:09,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 19:01:09,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 19:01:09,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 19:01:09,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 19:01:09,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 19:01:09,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 19:01:09,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 19:01:09,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 19:01:09,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 19:01:09,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 19:01:09,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 19:01:09,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 19:01:09,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 19:01:09,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 19:01:09,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 19:01:09,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 19:01:09,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 19:01:09,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 19:01:09,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 19:01:09,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 19:01:09,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 19:01:09,257 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 19:01:09,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 19:01:09,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 19:01:09,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 19:01:09,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 19:01:09,276 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 19:01:09,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 19:01:09,277 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 19:01:09,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 19:01:09,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 19:01:09,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 19:01:09,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 19:01:09,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 19:01:09,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 19:01:09,279 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 19:01:09,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 19:01:09,280 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 19:01:09,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 19:01:09,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 19:01:09,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 19:01:09,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 19:01:09,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 19:01:09,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 19:01:09,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 19:01:09,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 19:01:09,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 19:01:09,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 19:01:09,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 19:01:09,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 19:01:09,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 19:01:09,283 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 -> 7ed6f6fcca911d6d9d1e7f48bc21f435c586726c [2020-07-28 19:01:09,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 19:01:09,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 19:01:09,606 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 19:01:09,608 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 19:01:09,608 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 19:01:09,609 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2020-07-28 19:01:09,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2fd7202/1877b61e48274973bfa2c1d0c108296d/FLAGddfe0866c [2020-07-28 19:01:10,176 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 19:01:10,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2020-07-28 19:01:10,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2fd7202/1877b61e48274973bfa2c1d0c108296d/FLAGddfe0866c [2020-07-28 19:01:10,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2fd7202/1877b61e48274973bfa2c1d0c108296d [2020-07-28 19:01:10,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 19:01:10,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 19:01:10,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 19:01:10,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 19:01:10,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 19:01:10,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:01:10" (1/1) ... [2020-07-28 19:01:10,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4959e794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:10, skipping insertion in model container [2020-07-28 19:01:10,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:01:10" (1/1) ... [2020-07-28 19:01:10,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 19:01:10,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 19:01:10,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:01:11,004 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 19:01:11,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:01:11,140 INFO L208 MainTranslator]: Completed translation [2020-07-28 19:01:11,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11 WrapperNode [2020-07-28 19:01:11,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 19:01:11,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 19:01:11,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 19:01:11,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 19:01:11,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (1/1) ... [2020-07-28 19:01:11,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (1/1) ... [2020-07-28 19:01:11,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 19:01:11,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 19:01:11,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 19:01:11,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 19:01:11,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (1/1) ... [2020-07-28 19:01:11,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (1/1) ... [2020-07-28 19:01:11,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (1/1) ... [2020-07-28 19:01:11,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (1/1) ... [2020-07-28 19:01:11,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (1/1) ... [2020-07-28 19:01:11,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (1/1) ... [2020-07-28 19:01:11,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (1/1) ... [2020-07-28 19:01:11,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 19:01:11,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 19:01:11,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 19:01:11,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 19:01:11,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 19:01:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 19:01:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-28 19:01:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 19:01:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 19:01:12,799 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 19:01:12,799 INFO L295 CfgBuilder]: Removed 108 assume(true) statements. [2020-07-28 19:01:12,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:01:12 BoogieIcfgContainer [2020-07-28 19:01:12,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 19:01:12,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 19:01:12,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 19:01:12,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 19:01:12,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 07:01:10" (1/3) ... [2020-07-28 19:01:12,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d6bff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:01:12, skipping insertion in model container [2020-07-28 19:01:12,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:01:11" (2/3) ... [2020-07-28 19:01:12,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d6bff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:01:12, skipping insertion in model container [2020-07-28 19:01:12,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:01:12" (3/3) ... [2020-07-28 19:01:12,814 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-07-28 19:01:12,826 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 19:01:12,835 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-28 19:01:12,850 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 19:01:12,875 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 19:01:12,876 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 19:01:12,876 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 19:01:12,877 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 19:01:12,877 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 19:01:12,877 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 19:01:12,878 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 19:01:12,878 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 19:01:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-07-28 19:01:12,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 19:01:12,903 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:12,904 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 19:01:12,904 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:12,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:12,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1926736589, now seen corresponding path program 1 times [2020-07-28 19:01:12,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:12,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263084461] [2020-07-28 19:01:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:13,314 INFO L280 TraceCheckUtils]: 0: Hoare triple {80#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {80#true} is VALID [2020-07-28 19:01:13,315 INFO L280 TraceCheckUtils]: 1: Hoare triple {80#true} havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; {80#true} is VALID [2020-07-28 19:01:13,315 INFO L280 TraceCheckUtils]: 2: Hoare triple {80#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; {80#true} is VALID [2020-07-28 19:01:13,316 INFO L280 TraceCheckUtils]: 3: Hoare triple {80#true} main_#t~ret71 := valid_product_#res;assume -2147483648 <= main_#t~ret71 && main_#t~ret71 <= 2147483647;main_~tmp~6 := main_#t~ret71;havoc main_#t~ret71; {80#true} is VALID [2020-07-28 19:01:13,316 INFO L280 TraceCheckUtils]: 4: Hoare triple {80#true} assume 0 != main_~tmp~6; {80#true} is VALID [2020-07-28 19:01:13,317 INFO L280 TraceCheckUtils]: 5: Hoare triple {80#true} havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {80#true} is VALID [2020-07-28 19:01:13,318 INFO L280 TraceCheckUtils]: 6: Hoare triple {80#true} assume false; {81#false} is VALID [2020-07-28 19:01:13,319 INFO L280 TraceCheckUtils]: 7: Hoare triple {81#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {81#false} is VALID [2020-07-28 19:01:13,319 INFO L280 TraceCheckUtils]: 8: Hoare triple {81#false} assume !(0 != ~pumpRunning~0); {81#false} is VALID [2020-07-28 19:01:13,320 INFO L280 TraceCheckUtils]: 9: Hoare triple {81#false} assume !(0 != ~systemActive~0); {81#false} is VALID [2020-07-28 19:01:13,320 INFO L280 TraceCheckUtils]: 10: Hoare triple {81#false} havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; {81#false} is VALID [2020-07-28 19:01:13,321 INFO L280 TraceCheckUtils]: 11: Hoare triple {81#false} __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret0 && __utac_acc__Specification3_spec__1_#t~ret0 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; {81#false} is VALID [2020-07-28 19:01:13,322 INFO L280 TraceCheckUtils]: 12: Hoare triple {81#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; {81#false} is VALID [2020-07-28 19:01:13,322 INFO L280 TraceCheckUtils]: 13: Hoare triple {81#false} __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret1 && __utac_acc__Specification3_spec__1_#t~ret1 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; {81#false} is VALID [2020-07-28 19:01:13,323 INFO L280 TraceCheckUtils]: 14: Hoare triple {81#false} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; {81#false} is VALID [2020-07-28 19:01:13,323 INFO L280 TraceCheckUtils]: 15: Hoare triple {81#false} __utac_acc__Specification3_spec__1_#t~ret2 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret2 && __utac_acc__Specification3_spec__1_#t~ret2 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; {81#false} is VALID [2020-07-28 19:01:13,324 INFO L280 TraceCheckUtils]: 16: Hoare triple {81#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~0); {81#false} is VALID [2020-07-28 19:01:13,324 INFO L280 TraceCheckUtils]: 17: Hoare triple {81#false} assume !false; {81#false} is VALID [2020-07-28 19:01:13,331 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 19:01:13,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263084461] [2020-07-28 19:01:13,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:13,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 19:01:13,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067645529] [2020-07-28 19:01:13,342 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 19:01:13,344 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:13,349 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 19:01:13,400 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 19:01:13,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 19:01:13,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:13,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 19:01:13,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 19:01:13,414 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-07-28 19:01:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:13,650 INFO L93 Difference]: Finished difference Result 148 states and 221 transitions. [2020-07-28 19:01:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 19:01:13,650 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 19:01:13,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:13,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:01:13,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 221 transitions. [2020-07-28 19:01:13,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 19:01:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 221 transitions. [2020-07-28 19:01:13,669 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 221 transitions. [2020-07-28 19:01:13,974 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 221 edges. 221 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:13,989 INFO L225 Difference]: With dead ends: 148 [2020-07-28 19:01:13,989 INFO L226 Difference]: Without dead ends: 73 [2020-07-28 19:01:13,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 19:01:14,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-07-28 19:01:14,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-07-28 19:01:14,049 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:14,050 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand 73 states. [2020-07-28 19:01:14,051 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 73 states. [2020-07-28 19:01:14,051 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 73 states. [2020-07-28 19:01:14,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:14,057 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-07-28 19:01:14,057 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-07-28 19:01:14,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:14,059 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:14,059 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 73 states. [2020-07-28 19:01:14,059 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 73 states. [2020-07-28 19:01:14,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:14,065 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-07-28 19:01:14,065 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-07-28 19:01:14,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:14,067 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:14,067 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:14,067 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:14,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-28 19:01:14,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-07-28 19:01:14,074 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2020-07-28 19:01:14,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:14,075 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-07-28 19:01:14,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 19:01:14,075 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-07-28 19:01:14,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-28 19:01:14,077 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:14,077 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 19:01:14,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 19:01:14,078 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:14,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:14,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1015705836, now seen corresponding path program 1 times [2020-07-28 19:01:14,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:14,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564605730] [2020-07-28 19:01:14,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:14,219 INFO L280 TraceCheckUtils]: 0: Hoare triple {551#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {551#true} is VALID [2020-07-28 19:01:14,219 INFO L280 TraceCheckUtils]: 1: Hoare triple {551#true} havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; {551#true} is VALID [2020-07-28 19:01:14,220 INFO L280 TraceCheckUtils]: 2: Hoare triple {551#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; {551#true} is VALID [2020-07-28 19:01:14,220 INFO L280 TraceCheckUtils]: 3: Hoare triple {551#true} main_#t~ret71 := valid_product_#res;assume -2147483648 <= main_#t~ret71 && main_#t~ret71 <= 2147483647;main_~tmp~6 := main_#t~ret71;havoc main_#t~ret71; {551#true} is VALID [2020-07-28 19:01:14,220 INFO L280 TraceCheckUtils]: 4: Hoare triple {551#true} assume 0 != main_~tmp~6; {551#true} is VALID [2020-07-28 19:01:14,221 INFO L280 TraceCheckUtils]: 5: Hoare triple {551#true} havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {553#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:01:14,222 INFO L280 TraceCheckUtils]: 6: Hoare triple {553#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !false; {553#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} is VALID [2020-07-28 19:01:14,223 INFO L280 TraceCheckUtils]: 7: Hoare triple {553#(= 0 ULTIMATE.start_test_~splverifierCounter~0)} assume !(test_~splverifierCounter~0 < 4); {552#false} is VALID [2020-07-28 19:01:14,223 INFO L280 TraceCheckUtils]: 8: Hoare triple {552#false} havoc cleanup_~i~0, cleanup_~__cil_tmp2~0;havoc cleanup_~i~0;havoc cleanup_~__cil_tmp2~0; {552#false} is VALID [2020-07-28 19:01:14,224 INFO L280 TraceCheckUtils]: 9: Hoare triple {552#false} assume !(0 != ~pumpRunning~0); {552#false} is VALID [2020-07-28 19:01:14,224 INFO L280 TraceCheckUtils]: 10: Hoare triple {552#false} assume !(0 != ~systemActive~0); {552#false} is VALID [2020-07-28 19:01:14,224 INFO L280 TraceCheckUtils]: 11: Hoare triple {552#false} havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; {552#false} is VALID [2020-07-28 19:01:14,225 INFO L280 TraceCheckUtils]: 12: Hoare triple {552#false} __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret0 && __utac_acc__Specification3_spec__1_#t~ret0 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; {552#false} is VALID [2020-07-28 19:01:14,225 INFO L280 TraceCheckUtils]: 13: Hoare triple {552#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; {552#false} is VALID [2020-07-28 19:01:14,226 INFO L280 TraceCheckUtils]: 14: Hoare triple {552#false} __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret1 && __utac_acc__Specification3_spec__1_#t~ret1 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; {552#false} is VALID [2020-07-28 19:01:14,226 INFO L280 TraceCheckUtils]: 15: Hoare triple {552#false} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; {552#false} is VALID [2020-07-28 19:01:14,226 INFO L280 TraceCheckUtils]: 16: Hoare triple {552#false} __utac_acc__Specification3_spec__1_#t~ret2 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret2 && __utac_acc__Specification3_spec__1_#t~ret2 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; {552#false} is VALID [2020-07-28 19:01:14,227 INFO L280 TraceCheckUtils]: 17: Hoare triple {552#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~0); {552#false} is VALID [2020-07-28 19:01:14,227 INFO L280 TraceCheckUtils]: 18: Hoare triple {552#false} assume !false; {552#false} is VALID [2020-07-28 19:01:14,228 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 19:01:14,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564605730] [2020-07-28 19:01:14,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:14,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:01:14,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962267342] [2020-07-28 19:01:14,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-28 19:01:14,231 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:14,231 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:01:14,270 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 19:01:14,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:01:14,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:14,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:01:14,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:01:14,272 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 3 states. [2020-07-28 19:01:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:14,537 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-07-28 19:01:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:01:14,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-28 19:01:14,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:14,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:01:14,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2020-07-28 19:01:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:01:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2020-07-28 19:01:14,544 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 102 transitions. [2020-07-28 19:01:14,712 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:14,713 INFO L225 Difference]: With dead ends: 73 [2020-07-28 19:01:14,713 INFO L226 Difference]: Without dead ends: 35 [2020-07-28 19:01:14,719 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 19:01:14,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-28 19:01:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-28 19:01:14,740 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:14,740 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 35 states. [2020-07-28 19:01:14,740 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-28 19:01:14,740 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-28 19:01:14,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:14,743 INFO L93 Difference]: Finished difference Result 35 states and 49 transitions. [2020-07-28 19:01:14,743 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-07-28 19:01:14,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:14,744 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:14,744 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-28 19:01:14,745 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-28 19:01:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:14,747 INFO L93 Difference]: Finished difference Result 35 states and 49 transitions. [2020-07-28 19:01:14,747 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-07-28 19:01:14,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:14,748 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:14,748 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:14,749 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:14,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-28 19:01:14,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-07-28 19:01:14,751 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-07-28 19:01:14,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:14,752 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-07-28 19:01:14,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:01:14,752 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-07-28 19:01:14,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 19:01:14,753 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:14,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:01:14,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 19:01:14,754 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:14,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:14,754 INFO L82 PathProgramCache]: Analyzing trace with hash 428358184, now seen corresponding path program 1 times [2020-07-28 19:01:14,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:14,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703518415] [2020-07-28 19:01:14,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:14,838 INFO L280 TraceCheckUtils]: 0: Hoare triple {782#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {782#true} is VALID [2020-07-28 19:01:14,838 INFO L280 TraceCheckUtils]: 1: Hoare triple {782#true} havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; {782#true} is VALID [2020-07-28 19:01:14,839 INFO L280 TraceCheckUtils]: 2: Hoare triple {782#true} havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; {782#true} is VALID [2020-07-28 19:01:14,839 INFO L280 TraceCheckUtils]: 3: Hoare triple {782#true} main_#t~ret71 := valid_product_#res;assume -2147483648 <= main_#t~ret71 && main_#t~ret71 <= 2147483647;main_~tmp~6 := main_#t~ret71;havoc main_#t~ret71; {782#true} is VALID [2020-07-28 19:01:14,839 INFO L280 TraceCheckUtils]: 4: Hoare triple {782#true} assume 0 != main_~tmp~6; {782#true} is VALID [2020-07-28 19:01:14,839 INFO L280 TraceCheckUtils]: 5: Hoare triple {782#true} havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {782#true} is VALID [2020-07-28 19:01:14,840 INFO L280 TraceCheckUtils]: 6: Hoare triple {782#true} assume !false; {782#true} is VALID [2020-07-28 19:01:14,840 INFO L280 TraceCheckUtils]: 7: Hoare triple {782#true} assume test_~splverifierCounter~0 < 4; {782#true} is VALID [2020-07-28 19:01:14,841 INFO L280 TraceCheckUtils]: 8: Hoare triple {782#true} assume -2147483648 <= test_#t~nondet48 && test_#t~nondet48 <= 2147483647;test_~tmp~4 := test_#t~nondet48;havoc test_#t~nondet48; {782#true} is VALID [2020-07-28 19:01:14,841 INFO L280 TraceCheckUtils]: 9: Hoare triple {782#true} assume !(0 != test_~tmp~4); {782#true} is VALID [2020-07-28 19:01:14,841 INFO L280 TraceCheckUtils]: 10: Hoare triple {782#true} assume -2147483648 <= test_#t~nondet49 && test_#t~nondet49 <= 2147483647;test_~tmp___0~1 := test_#t~nondet49;havoc test_#t~nondet49; {782#true} is VALID [2020-07-28 19:01:14,842 INFO L280 TraceCheckUtils]: 11: Hoare triple {782#true} assume !(0 != test_~tmp___0~1); {782#true} is VALID [2020-07-28 19:01:14,842 INFO L280 TraceCheckUtils]: 12: Hoare triple {782#true} assume -2147483648 <= test_#t~nondet50 && test_#t~nondet50 <= 2147483647;test_~tmp___2~0 := test_#t~nondet50;havoc test_#t~nondet50; {782#true} is VALID [2020-07-28 19:01:14,844 INFO L280 TraceCheckUtils]: 13: Hoare triple {782#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {784#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:01:14,845 INFO L280 TraceCheckUtils]: 14: Hoare triple {784#(= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {784#(= 1 ~systemActive~0)} is VALID [2020-07-28 19:01:14,846 INFO L280 TraceCheckUtils]: 15: Hoare triple {784#(= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {783#false} is VALID [2020-07-28 19:01:14,846 INFO L280 TraceCheckUtils]: 16: Hoare triple {783#false} havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; {783#false} is VALID [2020-07-28 19:01:14,846 INFO L280 TraceCheckUtils]: 17: Hoare triple {783#false} __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret0 && __utac_acc__Specification3_spec__1_#t~ret0 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; {783#false} is VALID [2020-07-28 19:01:14,847 INFO L280 TraceCheckUtils]: 18: Hoare triple {783#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; {783#false} is VALID [2020-07-28 19:01:14,847 INFO L280 TraceCheckUtils]: 19: Hoare triple {783#false} __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret1 && __utac_acc__Specification3_spec__1_#t~ret1 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; {783#false} is VALID [2020-07-28 19:01:14,847 INFO L280 TraceCheckUtils]: 20: Hoare triple {783#false} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; {783#false} is VALID [2020-07-28 19:01:14,848 INFO L280 TraceCheckUtils]: 21: Hoare triple {783#false} __utac_acc__Specification3_spec__1_#t~ret2 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret2 && __utac_acc__Specification3_spec__1_#t~ret2 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; {783#false} is VALID [2020-07-28 19:01:14,848 INFO L280 TraceCheckUtils]: 22: Hoare triple {783#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~0); {783#false} is VALID [2020-07-28 19:01:14,849 INFO L280 TraceCheckUtils]: 23: Hoare triple {783#false} assume !false; {783#false} is VALID [2020-07-28 19:01:14,850 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 19:01:14,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703518415] [2020-07-28 19:01:14,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:14,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 19:01:14,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632437178] [2020-07-28 19:01:14,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 19:01:14,851 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:14,852 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 19:01:14,890 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:14,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 19:01:14,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:14,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 19:01:14,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 19:01:14,891 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 3 states. [2020-07-28 19:01:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:15,093 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2020-07-28 19:01:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 19:01:15,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 19:01:15,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:15,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:01:15,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2020-07-28 19:01:15,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 19:01:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2020-07-28 19:01:15,099 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 135 transitions. [2020-07-28 19:01:15,264 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 135 edges. 135 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:15,265 INFO L225 Difference]: With dead ends: 93 [2020-07-28 19:01:15,266 INFO L226 Difference]: Without dead ends: 64 [2020-07-28 19:01:15,268 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 19:01:15,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-28 19:01:15,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2020-07-28 19:01:15,318 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:15,318 INFO L82 GeneralOperation]: Start isEquivalent. First operand 64 states. Second operand 60 states. [2020-07-28 19:01:15,318 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 60 states. [2020-07-28 19:01:15,318 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 60 states. [2020-07-28 19:01:15,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:15,322 INFO L93 Difference]: Finished difference Result 64 states and 91 transitions. [2020-07-28 19:01:15,322 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2020-07-28 19:01:15,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:15,328 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:15,328 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 64 states. [2020-07-28 19:01:15,328 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 64 states. [2020-07-28 19:01:15,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:15,336 INFO L93 Difference]: Finished difference Result 64 states and 91 transitions. [2020-07-28 19:01:15,336 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2020-07-28 19:01:15,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:15,337 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:15,337 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:15,337 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:15,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-07-28 19:01:15,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 87 transitions. [2020-07-28 19:01:15,341 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 87 transitions. Word has length 24 [2020-07-28 19:01:15,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:15,342 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 87 transitions. [2020-07-28 19:01:15,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 19:01:15,342 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2020-07-28 19:01:15,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 19:01:15,343 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:15,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:01:15,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 19:01:15,349 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:15,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:15,350 INFO L82 PathProgramCache]: Analyzing trace with hash 796513325, now seen corresponding path program 1 times [2020-07-28 19:01:15,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:15,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609658274] [2020-07-28 19:01:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:01:15,482 INFO L280 TraceCheckUtils]: 0: Hoare triple {1133#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(30);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(9);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(13);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string41.base, #t~string41.offset, 1);call write~init~int(77, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(101, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(116, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(104, #t~string41.base, 4 + #t~string41.offset, 1);call write~init~int(58, #t~string41.base, 5 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 6 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string43.base, #t~string43.offset, 1);call write~init~int(82, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(73, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(84, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 4 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(75, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string47.base, #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 1 + #t~string47.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,483 INFO L280 TraceCheckUtils]: 1: Hoare triple {1135#(<= ~waterLevel~0 1)} havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,484 INFO L280 TraceCheckUtils]: 2: Hoare triple {1135#(<= ~waterLevel~0 1)} havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,485 INFO L280 TraceCheckUtils]: 3: Hoare triple {1135#(<= ~waterLevel~0 1)} main_#t~ret71 := valid_product_#res;assume -2147483648 <= main_#t~ret71 && main_#t~ret71 <= 2147483647;main_~tmp~6 := main_#t~ret71;havoc main_#t~ret71; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,486 INFO L280 TraceCheckUtils]: 4: Hoare triple {1135#(<= ~waterLevel~0 1)} assume 0 != main_~tmp~6; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,487 INFO L280 TraceCheckUtils]: 5: Hoare triple {1135#(<= ~waterLevel~0 1)} havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,487 INFO L280 TraceCheckUtils]: 6: Hoare triple {1135#(<= ~waterLevel~0 1)} assume !false; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,488 INFO L280 TraceCheckUtils]: 7: Hoare triple {1135#(<= ~waterLevel~0 1)} assume test_~splverifierCounter~0 < 4; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,489 INFO L280 TraceCheckUtils]: 8: Hoare triple {1135#(<= ~waterLevel~0 1)} assume -2147483648 <= test_#t~nondet48 && test_#t~nondet48 <= 2147483647;test_~tmp~4 := test_#t~nondet48;havoc test_#t~nondet48; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,490 INFO L280 TraceCheckUtils]: 9: Hoare triple {1135#(<= ~waterLevel~0 1)} assume !(0 != test_~tmp~4); {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,490 INFO L280 TraceCheckUtils]: 10: Hoare triple {1135#(<= ~waterLevel~0 1)} assume -2147483648 <= test_#t~nondet49 && test_#t~nondet49 <= 2147483647;test_~tmp___0~1 := test_#t~nondet49;havoc test_#t~nondet49; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,491 INFO L280 TraceCheckUtils]: 11: Hoare triple {1135#(<= ~waterLevel~0 1)} assume !(0 != test_~tmp___0~1); {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,492 INFO L280 TraceCheckUtils]: 12: Hoare triple {1135#(<= ~waterLevel~0 1)} assume -2147483648 <= test_#t~nondet50 && test_#t~nondet50 <= 2147483647;test_~tmp___2~0 := test_#t~nondet50;havoc test_#t~nondet50; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,493 INFO L280 TraceCheckUtils]: 13: Hoare triple {1135#(<= ~waterLevel~0 1)} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,493 INFO L280 TraceCheckUtils]: 14: Hoare triple {1135#(<= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,494 INFO L280 TraceCheckUtils]: 15: Hoare triple {1135#(<= ~waterLevel~0 1)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,495 INFO L280 TraceCheckUtils]: 16: Hoare triple {1135#(<= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,495 INFO L280 TraceCheckUtils]: 17: Hoare triple {1135#(<= ~waterLevel~0 1)} havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,496 INFO L280 TraceCheckUtils]: 18: Hoare triple {1135#(<= ~waterLevel~0 1)} __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret0 && __utac_acc__Specification3_spec__1_#t~ret0 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; {1135#(<= ~waterLevel~0 1)} is VALID [2020-07-28 19:01:15,497 INFO L280 TraceCheckUtils]: 19: Hoare triple {1135#(<= ~waterLevel~0 1)} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; {1136#(<= |ULTIMATE.start_getWaterLevel_#res| 1)} is VALID [2020-07-28 19:01:15,498 INFO L280 TraceCheckUtils]: 20: Hoare triple {1136#(<= |ULTIMATE.start_getWaterLevel_#res| 1)} __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret1 && __utac_acc__Specification3_spec__1_#t~ret1 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; {1137#(<= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~0 1)} is VALID [2020-07-28 19:01:15,499 INFO L280 TraceCheckUtils]: 21: Hoare triple {1137#(<= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~0 1)} assume 2 == __utac_acc__Specification3_spec__1_~tmp___0~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; {1134#false} is VALID [2020-07-28 19:01:15,499 INFO L280 TraceCheckUtils]: 22: Hoare triple {1134#false} __utac_acc__Specification3_spec__1_#t~ret2 := isPumpRunning_#res;assume -2147483648 <= __utac_acc__Specification3_spec__1_#t~ret2 && __utac_acc__Specification3_spec__1_#t~ret2 <= 2147483647;__utac_acc__Specification3_spec__1_~tmp___1~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; {1134#false} is VALID [2020-07-28 19:01:15,500 INFO L280 TraceCheckUtils]: 23: Hoare triple {1134#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp___1~0); {1134#false} is VALID [2020-07-28 19:01:15,500 INFO L280 TraceCheckUtils]: 24: Hoare triple {1134#false} assume !false; {1134#false} is VALID [2020-07-28 19:01:15,501 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 19:01:15,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609658274] [2020-07-28 19:01:15,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:01:15,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 19:01:15,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439346148] [2020-07-28 19:01:15,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 19:01:15,503 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:01:15,503 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 19:01:15,538 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:15,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 19:01:15,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 19:01:15,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 19:01:15,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 19:01:15,539 INFO L87 Difference]: Start difference. First operand 60 states and 87 transitions. Second operand 5 states. [2020-07-28 19:01:16,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:16,362 INFO L93 Difference]: Finished difference Result 320 states and 488 transitions. [2020-07-28 19:01:16,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 19:01:16,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-28 19:01:16,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:01:16,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:01:16,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 262 transitions. [2020-07-28 19:01:16,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 19:01:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 262 transitions. [2020-07-28 19:01:16,371 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 262 transitions. [2020-07-28 19:01:16,689 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 262 edges. 262 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:01:16,703 INFO L225 Difference]: With dead ends: 320 [2020-07-28 19:01:16,703 INFO L226 Difference]: Without dead ends: 266 [2020-07-28 19:01:16,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 19:01:16,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-07-28 19:01:16,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 108. [2020-07-28 19:01:16,847 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:01:16,847 INFO L82 GeneralOperation]: Start isEquivalent. First operand 266 states. Second operand 108 states. [2020-07-28 19:01:16,847 INFO L74 IsIncluded]: Start isIncluded. First operand 266 states. Second operand 108 states. [2020-07-28 19:01:16,847 INFO L87 Difference]: Start difference. First operand 266 states. Second operand 108 states. [2020-07-28 19:01:16,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:16,871 INFO L93 Difference]: Finished difference Result 266 states and 399 transitions. [2020-07-28 19:01:16,871 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 399 transitions. [2020-07-28 19:01:16,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:16,873 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:16,873 INFO L74 IsIncluded]: Start isIncluded. First operand 108 states. Second operand 266 states. [2020-07-28 19:01:16,873 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 266 states. [2020-07-28 19:01:16,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:01:16,896 INFO L93 Difference]: Finished difference Result 266 states and 399 transitions. [2020-07-28 19:01:16,896 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 399 transitions. [2020-07-28 19:01:16,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:01:16,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:01:16,898 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:01:16,898 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:01:16,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-07-28 19:01:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2020-07-28 19:01:16,905 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 25 [2020-07-28 19:01:16,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:01:16,905 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2020-07-28 19:01:16,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 19:01:16,906 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2020-07-28 19:01:16,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-28 19:01:16,907 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:01:16,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:01:16,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 19:01:16,908 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:01:16,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:01:16,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1162795665, now seen corresponding path program 1 times [2020-07-28 19:01:16,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:01:16,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693462471] [2020-07-28 19:01:16,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:01:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:01:16,971 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:01:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 19:01:17,039 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 19:01:17,102 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 19:01:17,104 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 19:01:17,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 19:01:17,263 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 19:01:17,263 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 19:01:17,264 WARN L170 areAnnotationChecker]: L794 has no Hoare annotation [2020-07-28 19:01:17,264 WARN L170 areAnnotationChecker]: L802 has no Hoare annotation [2020-07-28 19:01:17,264 WARN L170 areAnnotationChecker]: L889 has no Hoare annotation [2020-07-28 19:01:17,264 WARN L170 areAnnotationChecker]: L889 has no Hoare annotation [2020-07-28 19:01:17,264 WARN L170 areAnnotationChecker]: L866 has no Hoare annotation [2020-07-28 19:01:17,265 WARN L170 areAnnotationChecker]: L889-1 has no Hoare annotation [2020-07-28 19:01:17,265 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-28 19:01:17,265 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-28 19:01:17,265 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-28 19:01:17,265 WARN L170 areAnnotationChecker]: L898 has no Hoare annotation [2020-07-28 19:01:17,266 WARN L170 areAnnotationChecker]: L601 has no Hoare annotation [2020-07-28 19:01:17,266 WARN L170 areAnnotationChecker]: L552 has no Hoare annotation [2020-07-28 19:01:17,266 WARN L170 areAnnotationChecker]: L552 has no Hoare annotation [2020-07-28 19:01:17,266 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 19:01:17,266 WARN L170 areAnnotationChecker]: L620-1 has no Hoare annotation [2020-07-28 19:01:17,266 WARN L170 areAnnotationChecker]: L620-1 has no Hoare annotation [2020-07-28 19:01:17,266 WARN L170 areAnnotationChecker]: L553 has no Hoare annotation [2020-07-28 19:01:17,266 WARN L170 areAnnotationChecker]: L454-3 has no Hoare annotation [2020-07-28 19:01:17,267 WARN L170 areAnnotationChecker]: L454-3 has no Hoare annotation [2020-07-28 19:01:17,267 WARN L170 areAnnotationChecker]: L620-2 has no Hoare annotation [2020-07-28 19:01:17,267 WARN L170 areAnnotationChecker]: L620-2 has no Hoare annotation [2020-07-28 19:01:17,267 WARN L170 areAnnotationChecker]: L561 has no Hoare annotation [2020-07-28 19:01:17,267 WARN L170 areAnnotationChecker]: L561 has no Hoare annotation [2020-07-28 19:01:17,267 WARN L170 areAnnotationChecker]: L652-1 has no Hoare annotation [2020-07-28 19:01:17,267 WARN L170 areAnnotationChecker]: L652-1 has no Hoare annotation [2020-07-28 19:01:17,268 WARN L170 areAnnotationChecker]: L627-1 has no Hoare annotation [2020-07-28 19:01:17,268 WARN L170 areAnnotationChecker]: L466 has no Hoare annotation [2020-07-28 19:01:17,268 WARN L170 areAnnotationChecker]: L466 has no Hoare annotation [2020-07-28 19:01:17,268 WARN L170 areAnnotationChecker]: L561-1 has no Hoare annotation [2020-07-28 19:01:17,269 WARN L170 areAnnotationChecker]: L491-2 has no Hoare annotation [2020-07-28 19:01:17,269 WARN L170 areAnnotationChecker]: L491-3 has no Hoare annotation [2020-07-28 19:01:17,269 WARN L170 areAnnotationChecker]: L571 has no Hoare annotation [2020-07-28 19:01:17,269 WARN L170 areAnnotationChecker]: L571 has no Hoare annotation [2020-07-28 19:01:17,269 WARN L170 areAnnotationChecker]: L696-1 has no Hoare annotation [2020-07-28 19:01:17,269 WARN L170 areAnnotationChecker]: L53-2 has no Hoare annotation [2020-07-28 19:01:17,270 WARN L170 areAnnotationChecker]: L53-2 has no Hoare annotation [2020-07-28 19:01:17,270 WARN L170 areAnnotationChecker]: L478 has no Hoare annotation [2020-07-28 19:01:17,270 WARN L170 areAnnotationChecker]: L478 has no Hoare annotation [2020-07-28 19:01:17,270 WARN L170 areAnnotationChecker]: L571-1 has no Hoare annotation [2020-07-28 19:01:17,270 WARN L170 areAnnotationChecker]: L656-1 has no Hoare annotation [2020-07-28 19:01:17,270 WARN L170 areAnnotationChecker]: L656-1 has no Hoare annotation [2020-07-28 19:01:17,270 WARN L170 areAnnotationChecker]: L59-3 has no Hoare annotation [2020-07-28 19:01:17,270 WARN L170 areAnnotationChecker]: L523-1 has no Hoare annotation [2020-07-28 19:01:17,271 WARN L170 areAnnotationChecker]: L581 has no Hoare annotation [2020-07-28 19:01:17,271 WARN L170 areAnnotationChecker]: L581 has no Hoare annotation [2020-07-28 19:01:17,271 WARN L170 areAnnotationChecker]: L818-2 has no Hoare annotation [2020-07-28 19:01:17,271 WARN L170 areAnnotationChecker]: L818-2 has no Hoare annotation [2020-07-28 19:01:17,271 WARN L170 areAnnotationChecker]: L818-2 has no Hoare annotation [2020-07-28 19:01:17,271 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-28 19:01:17,271 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-28 19:01:17,271 WARN L170 areAnnotationChecker]: L589-1 has no Hoare annotation [2020-07-28 19:01:17,272 WARN L170 areAnnotationChecker]: L589-1 has no Hoare annotation [2020-07-28 19:01:17,272 WARN L170 areAnnotationChecker]: L589 has no Hoare annotation [2020-07-28 19:01:17,272 WARN L170 areAnnotationChecker]: L589 has no Hoare annotation [2020-07-28 19:01:17,272 WARN L170 areAnnotationChecker]: L819 has no Hoare annotation [2020-07-28 19:01:17,272 WARN L170 areAnnotationChecker]: L705-1 has no Hoare annotation [2020-07-28 19:01:17,272 WARN L170 areAnnotationChecker]: L454 has no Hoare annotation [2020-07-28 19:01:17,272 WARN L170 areAnnotationChecker]: L454 has no Hoare annotation [2020-07-28 19:01:17,273 WARN L170 areAnnotationChecker]: L620 has no Hoare annotation [2020-07-28 19:01:17,273 WARN L170 areAnnotationChecker]: L620 has no Hoare annotation [2020-07-28 19:01:17,273 WARN L170 areAnnotationChecker]: L749 has no Hoare annotation [2020-07-28 19:01:17,273 WARN L170 areAnnotationChecker]: L749 has no Hoare annotation [2020-07-28 19:01:17,273 WARN L170 areAnnotationChecker]: L822 has no Hoare annotation [2020-07-28 19:01:17,273 WARN L170 areAnnotationChecker]: L822 has no Hoare annotation [2020-07-28 19:01:17,273 WARN L170 areAnnotationChecker]: L63-2 has no Hoare annotation [2020-07-28 19:01:17,273 WARN L170 areAnnotationChecker]: L63-2 has no Hoare annotation [2020-07-28 19:01:17,274 WARN L170 areAnnotationChecker]: L652 has no Hoare annotation [2020-07-28 19:01:17,274 WARN L170 areAnnotationChecker]: L652 has no Hoare annotation [2020-07-28 19:01:17,274 WARN L170 areAnnotationChecker]: L627 has no Hoare annotation [2020-07-28 19:01:17,274 WARN L170 areAnnotationChecker]: L749-1 has no Hoare annotation [2020-07-28 19:01:17,274 WARN L170 areAnnotationChecker]: L822-1 has no Hoare annotation [2020-07-28 19:01:17,274 WARN L170 areAnnotationChecker]: L822-1 has no Hoare annotation [2020-07-28 19:01:17,274 WARN L170 areAnnotationChecker]: L532-1 has no Hoare annotation [2020-07-28 19:01:17,274 WARN L170 areAnnotationChecker]: L532-1 has no Hoare annotation [2020-07-28 19:01:17,275 WARN L170 areAnnotationChecker]: L491 has no Hoare annotation [2020-07-28 19:01:17,275 WARN L170 areAnnotationChecker]: L491-1 has no Hoare annotation [2020-07-28 19:01:17,275 WARN L170 areAnnotationChecker]: L454-6 has no Hoare annotation [2020-07-28 19:01:17,275 WARN L170 areAnnotationChecker]: L454-6 has no Hoare annotation [2020-07-28 19:01:17,275 WARN L170 areAnnotationChecker]: L620-3 has no Hoare annotation [2020-07-28 19:01:17,275 WARN L170 areAnnotationChecker]: L620-3 has no Hoare annotation [2020-07-28 19:01:17,275 WARN L170 areAnnotationChecker]: L696 has no Hoare annotation [2020-07-28 19:01:17,276 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-28 19:01:17,276 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-28 19:01:17,276 WARN L170 areAnnotationChecker]: L652-2 has no Hoare annotation [2020-07-28 19:01:17,276 WARN L170 areAnnotationChecker]: L652-2 has no Hoare annotation [2020-07-28 19:01:17,276 WARN L170 areAnnotationChecker]: L627-2 has no Hoare annotation [2020-07-28 19:01:17,276 WARN L170 areAnnotationChecker]: L656 has no Hoare annotation [2020-07-28 19:01:17,276 WARN L170 areAnnotationChecker]: L656 has no Hoare annotation [2020-07-28 19:01:17,276 WARN L170 areAnnotationChecker]: L523 has no Hoare annotation [2020-07-28 19:01:17,277 WARN L170 areAnnotationChecker]: L491-4 has no Hoare annotation [2020-07-28 19:01:17,277 WARN L170 areAnnotationChecker]: L491-5 has no Hoare annotation [2020-07-28 19:01:17,277 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-28 19:01:17,277 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-28 19:01:17,277 WARN L170 areAnnotationChecker]: L696-2 has no Hoare annotation [2020-07-28 19:01:17,277 WARN L170 areAnnotationChecker]: L53-4 has no Hoare annotation [2020-07-28 19:01:17,278 WARN L170 areAnnotationChecker]: L53-4 has no Hoare annotation [2020-07-28 19:01:17,278 WARN L170 areAnnotationChecker]: L705 has no Hoare annotation [2020-07-28 19:01:17,278 WARN L170 areAnnotationChecker]: L656-2 has no Hoare annotation [2020-07-28 19:01:17,278 WARN L170 areAnnotationChecker]: L656-2 has no Hoare annotation [2020-07-28 19:01:17,278 WARN L170 areAnnotationChecker]: L59-5 has no Hoare annotation [2020-07-28 19:01:17,279 WARN L170 areAnnotationChecker]: L523-2 has no Hoare annotation [2020-07-28 19:01:17,279 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-28 19:01:17,279 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-28 19:01:17,279 WARN L170 areAnnotationChecker]: L59-4 has no Hoare annotation [2020-07-28 19:01:17,279 WARN L170 areAnnotationChecker]: L59-4 has no Hoare annotation [2020-07-28 19:01:17,280 WARN L170 areAnnotationChecker]: L532 has no Hoare annotation [2020-07-28 19:01:17,280 WARN L170 areAnnotationChecker]: L532 has no Hoare annotation [2020-07-28 19:01:17,280 WARN L170 areAnnotationChecker]: L705-2 has no Hoare annotation [2020-07-28 19:01:17,280 WARN L170 areAnnotationChecker]: L63-4 has no Hoare annotation [2020-07-28 19:01:17,280 WARN L170 areAnnotationChecker]: L63-4 has no Hoare annotation [2020-07-28 19:01:17,281 WARN L170 areAnnotationChecker]: L532-2 has no Hoare annotation [2020-07-28 19:01:17,281 WARN L170 areAnnotationChecker]: L532-2 has no Hoare annotation [2020-07-28 19:01:17,281 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 19:01:17,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 07:01:17 BoogieIcfgContainer [2020-07-28 19:01:17,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 19:01:17,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 19:01:17,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 19:01:17,288 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 19:01:17,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:01:12" (3/4) ... [2020-07-28 19:01:17,291 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 19:01:17,438 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 19:01:17,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 19:01:17,442 INFO L168 Benchmark]: Toolchain (without parser) took 6916.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.9 MB). Free memory was 961.6 MB in the beginning and 827.1 MB in the end (delta: 134.4 MB). Peak memory consumption was 337.3 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:17,443 INFO L168 Benchmark]: CDTParser took 0.30 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 19:01:17,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:17,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.05 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 19:01:17,445 INFO L168 Benchmark]: Boogie Preprocessor took 48.49 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 19:01:17,445 INFO L168 Benchmark]: RCFGBuilder took 1505.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.8 MB in the end (delta: 146.6 MB). Peak memory consumption was 146.6 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:17,446 INFO L168 Benchmark]: TraceAbstraction took 4480.35 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 947.8 MB in the beginning and 850.4 MB in the end (delta: 97.4 MB). Peak memory consumption was 173.9 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:17,447 INFO L168 Benchmark]: Witness Printer took 151.83 ms. Allocated memory is still 1.2 GB. Free memory was 850.4 MB in the beginning and 827.1 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2020-07-28 19:01:17,450 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 0.30 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 611.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 109.05 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 48.49 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 1505.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.8 MB in the end (delta: 146.6 MB). Peak memory consumption was 146.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4480.35 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 947.8 MB in the beginning and 850.4 MB in the end (delta: 97.4 MB). Peak memory consumption was 173.9 MB. Max. memory is 11.5 GB. * Witness Printer took 151.83 ms. Allocated memory is still 1.2 GB. Free memory was 850.4 MB in the beginning and 827.1 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] int retValue_acc ; [L881] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L551] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L553] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND TRUE \read(tmp___2) [L764] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L627] COND TRUE \read(systemActive) [L649] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L652] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L532] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 278 SDtfs, 288 SDslu, 229 SDs, 0 SdLazy, 42 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 162 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...