./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5aa79e967971f371d7b4e44dc64a6773e8ce908a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 16:15:26,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 16:15:26,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 16:15:26,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 16:15:26,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 16:15:26,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 16:15:26,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 16:15:26,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 16:15:26,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 16:15:26,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 16:15:26,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 16:15:26,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 16:15:26,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 16:15:26,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 16:15:26,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 16:15:26,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 16:15:26,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 16:15:26,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 16:15:26,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 16:15:26,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 16:15:26,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 16:15:26,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 16:15:26,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 16:15:26,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 16:15:26,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 16:15:26,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 16:15:26,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 16:15:26,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 16:15:26,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 16:15:26,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 16:15:26,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 16:15:26,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 16:15:26,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 16:15:26,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 16:15:26,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 16:15:26,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 16:15:26,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 16:15:26,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 16:15:26,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 16:15:26,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 16:15:26,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 16:15:26,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 16:15:26,303 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 16:15:26,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 16:15:26,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 16:15:26,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 16:15:26,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 16:15:26,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 16:15:26,318 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 16:15:26,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 16:15:26,318 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 16:15:26,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 16:15:26,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 16:15:26,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 16:15:26,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 16:15:26,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 16:15:26,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 16:15:26,320 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 16:15:26,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 16:15:26,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 16:15:26,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 16:15:26,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 16:15:26,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 16:15:26,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 16:15:26,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:15:26,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 16:15:26,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 16:15:26,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 16:15:26,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 16:15:26,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 16:15:26,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 16:15:26,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 16:15:26,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aa79e967971f371d7b4e44dc64a6773e8ce908a [2021-08-29 16:15:26,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 16:15:26,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 16:15:26,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 16:15:26,604 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 16:15:26,606 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 16:15:26,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2021-08-29 16:15:26,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff934c6ab/1faa1799bce94428a346e7eaaf50808d/FLAG8091e9001 [2021-08-29 16:15:27,083 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 16:15:27,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2021-08-29 16:15:27,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff934c6ab/1faa1799bce94428a346e7eaaf50808d/FLAG8091e9001 [2021-08-29 16:15:27,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff934c6ab/1faa1799bce94428a346e7eaaf50808d [2021-08-29 16:15:27,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 16:15:27,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 16:15:27,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 16:15:27,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 16:15:27,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 16:15:27,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29afe2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27, skipping insertion in model container [2021-08-29 16:15:27,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 16:15:27,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 16:15:27,390 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c[12695,12708] [2021-08-29 16:15:27,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:15:27,435 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 16:15:27,488 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c[12695,12708] [2021-08-29 16:15:27,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:15:27,524 INFO L208 MainTranslator]: Completed translation [2021-08-29 16:15:27,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27 WrapperNode [2021-08-29 16:15:27,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 16:15:27,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 16:15:27,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 16:15:27,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 16:15:27,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 16:15:27,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 16:15:27,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 16:15:27,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 16:15:27,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 16:15:27,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 16:15:27,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 16:15:27,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 16:15:27,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (1/1) ... [2021-08-29 16:15:27,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:15:27,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 16:15:27,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 16:15:27,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 16:15:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 16:15:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 16:15:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 16:15:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 16:15:28,159 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 16:15:28,160 INFO L299 CfgBuilder]: Removed 108 assume(true) statements. [2021-08-29 16:15:28,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:15:28 BoogieIcfgContainer [2021-08-29 16:15:28,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 16:15:28,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 16:15:28,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 16:15:28,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 16:15:28,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:15:27" (1/3) ... [2021-08-29 16:15:28,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2e0a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:15:28, skipping insertion in model container [2021-08-29 16:15:28,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:27" (2/3) ... [2021-08-29 16:15:28,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2e0a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:15:28, skipping insertion in model container [2021-08-29 16:15:28,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:15:28" (3/3) ... [2021-08-29 16:15:28,169 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2021-08-29 16:15:28,180 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 16:15:28,180 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-29 16:15:28,238 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 16:15:28,244 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 16:15:28,246 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-29 16:15:28,263 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 73 states have (on average 1.5616438356164384) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:28,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 16:15:28,278 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:28,279 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:15:28,279 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:15:28,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:28,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1926736589, now seen corresponding path program 1 times [2021-08-29 16:15:28,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:28,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824301033] [2021-08-29 16:15:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:28,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:15:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:15:28,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:15:28,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824301033] [2021-08-29 16:15:28,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824301033] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:15:28,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:15:28,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:15:28,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604748099] [2021-08-29 16:15:28,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 16:15:28,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:15:28,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 16:15:28,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:15:28,630 INFO L87 Difference]: Start difference. First operand has 77 states, 73 states have (on average 1.5616438356164384) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:28,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:28,783 INFO L93 Difference]: Finished difference Result 148 states and 221 transitions. [2021-08-29 16:15:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 16:15:28,785 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-29 16:15:28,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:28,791 INFO L225 Difference]: With dead ends: 148 [2021-08-29 16:15:28,791 INFO L226 Difference]: Without dead ends: 73 [2021-08-29 16:15:28,793 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:15:28,795 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.09ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121.83ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:28,796 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 107 Unknown, 0 Unchecked, 1.09ms Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 121.83ms Time] [2021-08-29 16:15:28,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-08-29 16:15:28,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-08-29 16:15:28,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 70 states have (on average 1.457142857142857) internal successors, (102), 72 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2021-08-29 16:15:28,820 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2021-08-29 16:15:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:28,820 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2021-08-29 16:15:28,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:28,821 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2021-08-29 16:15:28,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-29 16:15:28,821 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:28,821 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:15:28,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 16:15:28,822 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:15:28,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:28,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1015705836, now seen corresponding path program 1 times [2021-08-29 16:15:28,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:28,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429698418] [2021-08-29 16:15:28,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:28,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:15:28,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:15:28,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:15:28,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429698418] [2021-08-29 16:15:28,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429698418] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:15:28,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:15:28,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 16:15:28,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868027846] [2021-08-29 16:15:28,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:15:28,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:15:28,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:15:28,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:15:28,873 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:28,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:28,952 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2021-08-29 16:15:28,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:15:28,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-08-29 16:15:28,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:28,953 INFO L225 Difference]: With dead ends: 73 [2021-08-29 16:15:28,953 INFO L226 Difference]: Without dead ends: 35 [2021-08-29 16:15:28,953 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:15:28,954 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.47ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:28,955 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 54 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 72.47ms Time] [2021-08-29 16:15:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-08-29 16:15:28,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-08-29 16:15:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 34 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2021-08-29 16:15:28,958 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2021-08-29 16:15:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:28,958 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2021-08-29 16:15:28,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:28,959 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2021-08-29 16:15:28,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 16:15:28,959 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:28,959 INFO L513 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] [2021-08-29 16:15:28,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 16:15:28,960 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:15:28,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:28,960 INFO L82 PathProgramCache]: Analyzing trace with hash 428358184, now seen corresponding path program 1 times [2021-08-29 16:15:28,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:28,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627851603] [2021-08-29 16:15:28,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:28,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:15:29,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:15:29,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:15:29,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627851603] [2021-08-29 16:15:29,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627851603] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:15:29,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:15:29,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 16:15:29,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881776560] [2021-08-29 16:15:29,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:15:29,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:15:29,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:15:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:15:29,017 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:29,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:29,156 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2021-08-29 16:15:29,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:15:29,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-29 16:15:29,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:29,158 INFO L225 Difference]: With dead ends: 93 [2021-08-29 16:15:29,158 INFO L226 Difference]: Without dead ends: 64 [2021-08-29 16:15:29,158 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:15:29,159 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.08ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:29,172 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 92 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 114.08ms Time] [2021-08-29 16:15:29,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-08-29 16:15:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2021-08-29 16:15:29,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.4745762711864407) internal successors, (87), 59 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 87 transitions. [2021-08-29 16:15:29,179 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 87 transitions. Word has length 24 [2021-08-29 16:15:29,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:29,179 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 87 transitions. [2021-08-29 16:15:29,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:29,180 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2021-08-29 16:15:29,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-29 16:15:29,180 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:29,181 INFO L513 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] [2021-08-29 16:15:29,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 16:15:29,181 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:15:29,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:29,182 INFO L82 PathProgramCache]: Analyzing trace with hash 796513325, now seen corresponding path program 1 times [2021-08-29 16:15:29,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:29,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723083617] [2021-08-29 16:15:29,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:29,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:15:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:15:29,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:15:29,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723083617] [2021-08-29 16:15:29,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723083617] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:15:29,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:15:29,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 16:15:29,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305141140] [2021-08-29 16:15:29,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:15:29,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:15:29,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:15:29,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:15:29,278 INFO L87 Difference]: Start difference. First operand 60 states and 87 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:29,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:29,549 INFO L93 Difference]: Finished difference Result 320 states and 488 transitions. [2021-08-29 16:15:29,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 16:15:29,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-08-29 16:15:29,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:29,551 INFO L225 Difference]: With dead ends: 320 [2021-08-29 16:15:29,551 INFO L226 Difference]: Without dead ends: 266 [2021-08-29 16:15:29,551 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.60ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:15:29,552 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 198 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 184.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.35ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 238.29ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:29,553 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 0 Invalid, 307 Unknown, 0 Unchecked, 2.35ms Time], IncrementalHoareTripleChecker [8 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 238.29ms Time] [2021-08-29 16:15:29,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-08-29 16:15:29,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 108. [2021-08-29 16:15:29,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.4485981308411215) internal successors, (155), 107 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:29,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2021-08-29 16:15:29,562 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 25 [2021-08-29 16:15:29,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:29,563 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2021-08-29 16:15:29,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:29,563 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2021-08-29 16:15:29,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-29 16:15:29,564 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:29,564 INFO L513 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] [2021-08-29 16:15:29,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 16:15:29,564 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:15:29,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:29,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1162795665, now seen corresponding path program 1 times [2021-08-29 16:15:29,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:29,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015056943] [2021-08-29 16:15:29,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:29,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 16:15:29,606 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 16:15:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 16:15:29,666 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 16:15:29,666 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 16:15:29,667 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-08-29 16:15:29,668 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-08-29 16:15:29,668 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-08-29 16:15:29,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 16:15:29,673 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 16:15:29,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:15:29 BoogieIcfgContainer [2021-08-29 16:15:29,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 16:15:29,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 16:15:29,730 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 16:15:29,730 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 16:15:29,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:15:28" (3/4) ... [2021-08-29 16:15:29,731 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 16:15:29,772 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 16:15:29,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 16:15:29,772 INFO L158 Benchmark]: Toolchain (without parser) took 2667.66ms. Allocated memory was 48.2MB in the beginning and 90.2MB in the end (delta: 41.9MB). Free memory was 23.1MB in the beginning and 55.9MB in the end (delta: -32.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-08-29 16:15:29,773 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 30.5MB in the beginning and 30.4MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 16:15:29,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.18ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 22.9MB in the beginning and 36.8MB in the end (delta: -13.8MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2021-08-29 16:15:29,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.77ms. Allocated memory is still 60.8MB. Free memory was 36.7MB in the beginning and 33.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 16:15:29,773 INFO L158 Benchmark]: Boogie Preprocessor took 51.25ms. Allocated memory is still 60.8MB. Free memory was 33.5MB in the beginning and 31.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 16:15:29,774 INFO L158 Benchmark]: RCFGBuilder took 515.16ms. Allocated memory is still 60.8MB. Free memory was 31.4MB in the beginning and 26.5MB in the end (delta: 5.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-08-29 16:15:29,774 INFO L158 Benchmark]: TraceAbstraction took 1565.63ms. Allocated memory was 60.8MB in the beginning and 90.2MB in the end (delta: 29.4MB). Free memory was 25.9MB in the beginning and 67.1MB in the end (delta: -41.2MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2021-08-29 16:15:29,774 INFO L158 Benchmark]: Witness Printer took 42.69ms. Allocated memory is still 90.2MB. Free memory was 67.1MB in the beginning and 55.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 16:15:29,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 30.5MB in the beginning and 30.4MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.18ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 22.9MB in the beginning and 36.8MB in the end (delta: -13.8MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.77ms. Allocated memory is still 60.8MB. Free memory was 36.7MB in the beginning and 33.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.25ms. Allocated memory is still 60.8MB. Free memory was 33.5MB in the beginning and 31.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 515.16ms. Allocated memory is still 60.8MB. Free memory was 31.4MB in the beginning and 26.5MB in the end (delta: 5.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1565.63ms. Allocated memory was 60.8MB in the beginning and 90.2MB in the end (delta: 29.4MB). Free memory was 25.9MB in the beginning and 67.1MB in the end (delta: -41.2MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Witness Printer took 42.69ms. Allocated memory is still 90.2MB. Free memory was 67.1MB in the beginning and 55.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 534]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L809] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] int retValue_acc ; [L883] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] int retValue_acc ; [L803] retValue_acc = 1 [L804] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] tmp = valid_product() [L891] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L544] int splverifierCounter ; [L545] int tmp ; [L546] int tmp___0 ; [L547] int tmp___1 ; [L548] int tmp___2 ; [L551] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L553] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L555] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L561] tmp = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L571] tmp___0 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L581] tmp___2 = __VERIFIER_nondet_int() [L583] COND TRUE \read(tmp___2) [L766] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L629] COND TRUE \read(systemActive) [L651] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L534] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 534]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1436.12ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 22.56ms, AutomataDifference: 716.94ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12.58ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 284 SdHoareTripleChecker+Valid, 546.68ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 284 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 429.23ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 232 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 551 IncrementalHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 551 mSolverCounterSat, 4.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.61ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 32.85ms AutomataMinimizationTime, 4 MinimizatonAttempts, 162 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.62ms SsaConstructionTime, 167.88ms SatisfiabilityAnalysisTime, 255.54ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 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! [2021-08-29 16:15:29,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...