./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product14_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product14_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ffb924ee3454938bf87e2a52362fa3f53467287e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:28:15,381 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:28:15,382 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:28:15,389 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:28:15,389 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:28:15,390 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:28:15,390 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:28:15,391 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:28:15,392 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:28:15,392 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:28:15,393 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:28:15,393 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:28:15,393 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:28:15,394 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:28:15,394 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:28:15,395 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:28:15,395 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:28:15,396 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:28:15,397 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:28:15,398 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:28:15,398 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:28:15,399 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:28:15,401 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:28:15,401 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:28:15,401 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:28:15,402 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:28:15,402 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:28:15,403 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:28:15,403 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:28:15,403 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:28:15,404 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:28:15,404 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:28:15,404 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:28:15,404 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:28:15,405 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:28:15,405 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:28:15,405 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-09 00:28:15,414 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:28:15,415 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:28:15,415 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:28:15,415 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 00:28:15,416 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 00:28:15,416 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 00:28:15,416 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:28:15,416 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:28:15,417 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:28:15,417 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:28:15,417 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:28:15,417 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:28:15,417 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:28:15,417 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:28:15,417 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:28:15,418 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:28:15,418 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 00:28:15,418 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:28:15,418 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 00:28:15,418 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 00:28:15,418 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:28:15,419 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:28:15,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 00:28:15,419 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:28:15,419 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:28:15,419 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:28:15,419 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 00:28:15,419 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:28:15,420 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:28:15,420 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak 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 -> Kojak 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 -> ffb924ee3454938bf87e2a52362fa3f53467287e [2018-12-09 00:28:15,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:28:15,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:28:15,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:28:15,453 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:28:15,453 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:28:15,453 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/../../sv-benchmarks/c/product-lines/minepump_spec1_product14_true-unreach-call_false-termination.cil.c [2018-12-09 00:28:15,488 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/data/c8ec88bd5/c3c9a03a1ce64e82a6ea7ef9c23d0a11/FLAG1fdc2a78f [2018-12-09 00:28:15,858 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:28:15,859 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/sv-benchmarks/c/product-lines/minepump_spec1_product14_true-unreach-call_false-termination.cil.c [2018-12-09 00:28:15,865 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/data/c8ec88bd5/c3c9a03a1ce64e82a6ea7ef9c23d0a11/FLAG1fdc2a78f [2018-12-09 00:28:16,216 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/data/c8ec88bd5/c3c9a03a1ce64e82a6ea7ef9c23d0a11 [2018-12-09 00:28:16,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:28:16,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:28:16,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:28:16,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:28:16,222 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:28:16,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11621d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16, skipping insertion in model container [2018-12-09 00:28:16,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:28:16,254 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:28:16,405 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:28:16,415 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:28:16,497 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:28:16,510 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:28:16,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16 WrapperNode [2018-12-09 00:28:16,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:28:16,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:28:16,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:28:16,511 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:28:16,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:28:16,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:28:16,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:28:16,539 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:28:16,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:28:16,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:28:16,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:28:16,556 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:28:16,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:28:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-12-09 00:28:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:28:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 00:28:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 00:28:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 00:28:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 00:28:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 00:28:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 00:28:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 00:28:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 00:28:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 00:28:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 00:28:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 00:28:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 00:28:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 00:28:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 00:28:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 00:28:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:28:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:28:16,953 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:28:16,954 INFO L280 CfgBuilder]: Removed 32 assue(true) statements. [2018-12-09 00:28:16,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:28:16 BoogieIcfgContainer [2018-12-09 00:28:16,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:28:16,954 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 00:28:16,954 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 00:28:16,961 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 00:28:16,961 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:28:16" (1/1) ... [2018-12-09 00:28:16,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:28:16,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:16,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 52 states and 67 transitions. [2018-12-09 00:28:16,991 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2018-12-09 00:28:16,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 00:28:16,995 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:17,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:28:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:17,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 52 states and 65 transitions. [2018-12-09 00:28:17,107 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2018-12-09 00:28:17,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 00:28:17,107 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:28:17,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 54 states and 68 transitions. [2018-12-09 00:28:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2018-12-09 00:28:17,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 00:28:17,175 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:17,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:28:17,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:17,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 63 states and 85 transitions. [2018-12-09 00:28:17,335 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2018-12-09 00:28:17,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 00:28:17,336 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:28:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 64 states and 86 transitions. [2018-12-09 00:28:17,387 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2018-12-09 00:28:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 00:28:17,388 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:28:17,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:17,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 78 states and 117 transitions. [2018-12-09 00:28:17,761 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 117 transitions. [2018-12-09 00:28:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 00:28:17,762 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:28:17,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:17,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 86 states and 131 transitions. [2018-12-09 00:28:17,818 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 131 transitions. [2018-12-09 00:28:17,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 00:28:17,819 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:28:18,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:18,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 102 states and 162 transitions. [2018-12-09 00:28:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 162 transitions. [2018-12-09 00:28:18,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 00:28:18,486 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:18,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:28:18,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:18,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 103 states and 163 transitions. [2018-12-09 00:28:18,512 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 163 transitions. [2018-12-09 00:28:18,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 00:28:18,514 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 00:28:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:18,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 108 states and 173 transitions. [2018-12-09 00:28:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 173 transitions. [2018-12-09 00:28:18,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 00:28:18,622 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 00:28:18,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:18,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 109 states and 174 transitions. [2018-12-09 00:28:18,646 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 174 transitions. [2018-12-09 00:28:18,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-09 00:28:18,647 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:18,689 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 00:28:18,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:18,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 115 states and 189 transitions. [2018-12-09 00:28:18,835 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 189 transitions. [2018-12-09 00:28:18,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-12-09 00:28:18,836 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 00:28:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:19,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 118 states and 195 transitions. [2018-12-09 00:28:19,343 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 195 transitions. [2018-12-09 00:28:19,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-12-09 00:28:19,344 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 00:28:19,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:19,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 116 states and 191 transitions. [2018-12-09 00:28:19,370 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 191 transitions. [2018-12-09 00:28:19,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-09 00:28:19,371 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:19,392 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 00:28:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:19,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 118 states and 196 transitions. [2018-12-09 00:28:19,529 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 196 transitions. [2018-12-09 00:28:19,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-09 00:28:19,530 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:19,544 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-09 00:28:19,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:19,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 121 states and 199 transitions. [2018-12-09 00:28:19,668 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 199 transitions. [2018-12-09 00:28:19,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-09 00:28:19,669 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:19,738 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 00:28:20,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:20,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 129 states and 211 transitions. [2018-12-09 00:28:20,154 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 211 transitions. [2018-12-09 00:28:20,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-09 00:28:20,155 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:20,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 00:28:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:20,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 138 states and 223 transitions. [2018-12-09 00:28:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 223 transitions. [2018-12-09 00:28:20,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 00:28:20,732 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 00:28:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:20,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 120 states and 184 transitions. [2018-12-09 00:28:20,766 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 184 transitions. [2018-12-09 00:28:20,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-09 00:28:20,767 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-09 00:28:21,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:21,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 128 states and 199 transitions. [2018-12-09 00:28:21,498 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 199 transitions. [2018-12-09 00:28:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-09 00:28:21,499 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 00:28:22,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:22,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 140 states and 221 transitions. [2018-12-09 00:28:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 221 transitions. [2018-12-09 00:28:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-09 00:28:22,373 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 00:28:22,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 142 states and 223 transitions. [2018-12-09 00:28:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 223 transitions. [2018-12-09 00:28:22,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-09 00:28:22,551 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:22,568 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 00:28:22,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:22,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 122 states and 179 transitions. [2018-12-09 00:28:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 179 transitions. [2018-12-09 00:28:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 00:28:22,578 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 00:28:22,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:22,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 124 states and 182 transitions. [2018-12-09 00:28:22,624 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 182 transitions. [2018-12-09 00:28:22,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-09 00:28:22,624 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-12-09 00:28:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 125 states and 183 transitions. [2018-12-09 00:28:22,656 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 183 transitions. [2018-12-09 00:28:22,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-09 00:28:22,657 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 00:28:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:28:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 00:28:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 00:28:22,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 53 states and 65 transitions. [2018-12-09 00:28:22,688 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2018-12-09 00:28:22,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 00:28:22,688 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2018-12-09 00:28:22,694 INFO L779 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-12-09 00:28:22,875 INFO L583 CodeCheckObserver]: Invariant with dag size 9 [2018-12-09 00:28:22,880 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 00:28:22,880 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 00:28:22,880 INFO L583 CodeCheckObserver]: Invariant with dag size 7 [2018-12-09 00:28:22,880 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 00:28:22,880 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 00:28:22,880 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 00:28:22,881 INFO L583 CodeCheckObserver]: Invariant with dag size 11 [2018-12-09 00:28:22,881 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 00:28:22,881 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 00:28:22,881 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 00:28:22,881 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 00:28:22,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 12:28:22 ImpRootNode [2018-12-09 00:28:22,882 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 00:28:22,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:28:22,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:28:22,882 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:28:22,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:28:16" (3/4) ... [2018-12-09 00:28:22,885 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 00:28:22,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-09 00:28:22,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-09 00:28:22,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-09 00:28:22,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-09 00:28:22,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-09 00:28:22,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-09 00:28:22,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-09 00:28:22,893 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2018-12-09 00:28:22,893 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-12-09 00:28:22,894 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-09 00:28:22,894 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 00:28:22,894 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 00:28:22,894 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 00:28:22,913 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == pumpRunning) || pumpRunning == \old(pumpRunning)) || systemActive == 0 [2018-12-09 00:28:22,939 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e38252e2-c600-4375-a1a9-43b2d8ab97fd/bin-2019/ukojak/witness.graphml [2018-12-09 00:28:22,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:28:22,940 INFO L168 Benchmark]: Toolchain (without parser) took 6721.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 949.5 MB in the beginning and 833.4 MB in the end (delta: 116.1 MB). Peak memory consumption was 324.8 MB. Max. memory is 11.5 GB. [2018-12-09 00:28:22,941 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:28:22,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-12-09 00:28:22,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:28:22,941 INFO L168 Benchmark]: Boogie Preprocessor took 16.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:28:22,941 INFO L168 Benchmark]: RCFGBuilder took 397.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:28:22,942 INFO L168 Benchmark]: CodeCheck took 5927.52 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 93.8 MB). Free memory was 1.0 GB in the beginning and 840.5 MB in the end (delta: 197.3 MB). Peak memory consumption was 291.2 MB. Max. memory is 11.5 GB. [2018-12-09 00:28:22,942 INFO L168 Benchmark]: Witness Printer took 57.47 ms. Allocated memory is still 1.2 GB. Free memory was 840.5 MB in the beginning and 833.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:28:22,943 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 8 procedures, 68 locations, 1 error locations. SAFE Result, 5.7s OverallTime, 26 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 724138020 SDtfs, 230287916 SDslu, 416248668 SDs, 0 SdLazy, 452581116 SolverSat, 148761300 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9514 GetRequests, 9254 SyntacticMatches, 68 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15446 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1006 NumberOfCodeBlocks, 1006 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 981 ConstructedInterpolants, 0 QuantifiedInterpolants, 84369 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 20 PerfectInterpolantSequences, 327/340 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 890]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 707]: Loop Invariant Derived loop invariant: (!(0 == pumpRunning) || pumpRunning == \old(pumpRunning)) || systemActive == 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 715]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 868]: Loop Invariant Derived loop invariant: tmp == methaneLevelCritical || !(tmp == 0) - InvariantResult [Line: 868]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: ((0 == methaneLevelCritical && tmp == systemActive) && tmp == 1) && 0 == pumpRunning - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 639]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 397.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. * CodeCheck took 5927.52 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 93.8 MB). Free memory was 1.0 GB in the beginning and 840.5 MB in the end (delta: 197.3 MB). Peak memory consumption was 291.2 MB. Max. memory is 11.5 GB. * Witness Printer took 57.47 ms. Allocated memory is still 1.2 GB. Free memory was 840.5 MB in the beginning and 833.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...