./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label53_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label53_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/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 197209881b4fe70c7fe468e7084aa1de2f7c6240 .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:39:34,444 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:39:34,446 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:39:34,452 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:39:34,452 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:39:34,453 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:39:34,454 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:39:34,455 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:39:34,456 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:39:34,456 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:39:34,457 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:39:34,457 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:39:34,458 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:39:34,458 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:39:34,459 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:39:34,460 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:39:34,460 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:39:34,461 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:39:34,463 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:39:34,464 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:39:34,464 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:39:34,465 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:39:34,467 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:39:34,467 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:39:34,468 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:39:34,468 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:39:34,469 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:39:34,469 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:39:34,471 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:39:34,471 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:39:34,472 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:39:34,472 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:39:34,472 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:39:34,472 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:39:34,473 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:39:34,473 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:39:34,473 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 09:39:34,482 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:39:34,482 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:39:34,482 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:39:34,483 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 09:39:34,483 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:39:34,483 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:39:34,483 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:39:34,483 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:39:34,483 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:39:34,483 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:39:34,484 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:39:34,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:39:34,484 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:39:34,484 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:39:34,484 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:39:34,484 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:39:34,484 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:39:34,484 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:39:34,485 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 09:39:34,485 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 09:39:34,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:39:34,485 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:39:34,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 09:39:34,485 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:39:34,485 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:39:34,485 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:39:34,486 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 09:39:34,486 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:39:34,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:39:34,486 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_c8e962b4-4d92-4bf4-81b3-25f84511c8af/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 -> 197209881b4fe70c7fe468e7084aa1de2f7c6240 [2018-11-18 09:39:34,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:39:34,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:39:34,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:39:34,518 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:39:34,518 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:39:34,519 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem14_label53_true-unreach-call_false-termination.c [2018-11-18 09:39:34,551 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/data/d1e890553/376c54e8ff484d20bd8da17d48a737b8/FLAGcea04e669 [2018-11-18 09:39:34,997 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:39:34,998 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/sv-benchmarks/c/eca-rers2012/Problem14_label53_true-unreach-call_false-termination.c [2018-11-18 09:39:35,007 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/data/d1e890553/376c54e8ff484d20bd8da17d48a737b8/FLAGcea04e669 [2018-11-18 09:39:35,018 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/data/d1e890553/376c54e8ff484d20bd8da17d48a737b8 [2018-11-18 09:39:35,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:39:35,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:39:35,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:39:35,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:39:35,024 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:39:35,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f427c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35, skipping insertion in model container [2018-11-18 09:39:35,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:39:35,071 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:39:35,328 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:39:35,331 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:39:35,414 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:39:35,424 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:39:35,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35 WrapperNode [2018-11-18 09:39:35,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:39:35,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:39:35,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:39:35,425 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:39:35,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:39:35,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:39:35,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:39:35,542 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:39:35,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35" (1/1) ... [2018-11-18 09:39:35,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:39:35,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:39:35,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:39:35,591 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:39:35,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:39:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/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 [2018-11-18 09:39:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 09:39:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:39:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:44:27,657 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:44:27,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:44:27 BoogieIcfgContainer [2018-11-18 09:44:27,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:44:27,658 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 09:44:27,658 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 09:44:27,668 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 09:44:27,668 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:44:27" (1/1) ... [2018-11-18 09:44:27,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:44:27,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:44:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2018-11-18 09:44:27,710 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2018-11-18 09:44:27,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 09:44:27,713 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:44:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:44:27,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:44:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:44:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2018-11-18 09:44:27,985 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2018-11-18 09:44:27,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 09:44:27,985 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:44:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:44:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:44:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:44:28,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2018-11-18 09:44:28,859 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2018-11-18 09:44:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 09:44:28,860 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:44:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:44:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:45:00,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2018-11-18 09:45:00,219 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2018-11-18 09:45:00,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 09:45:00,222 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:45:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:00,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:45:00,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 35 states and 54 transitions. [2018-11-18 09:45:00,823 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2018-11-18 09:45:00,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 09:45:00,823 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:45:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:01,140 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:01,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:45:01,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 36 states and 54 transitions. [2018-11-18 09:45:01,324 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 54 transitions. [2018-11-18 09:45:01,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 09:45:01,325 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:45:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:02,024 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:33,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:45:33,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 48 states and 84 transitions. [2018-11-18 09:45:33,397 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 84 transitions. [2018-11-18 09:45:33,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 09:45:33,397 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:45:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:33,935 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:45:45,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:45:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 53 states and 92 transitions. [2018-11-18 09:45:45,171 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 92 transitions. [2018-11-18 09:45:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 09:45:45,172 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:45:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:46,503 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2018-11-18 09:45:46,672 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2018-11-18 09:45:46,850 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 43 [2018-11-18 09:45:47,083 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:46:12,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:46:12,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 68 states and 125 transitions. [2018-11-18 09:46:12,461 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 125 transitions. [2018-11-18 09:46:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 09:46:12,462 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:46:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:46:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:46:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:46:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 72 states and 129 transitions. [2018-11-18 09:46:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 129 transitions. [2018-11-18 09:46:14,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 09:46:14,453 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:46:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:46:15,121 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:46:15,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:46:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 75 states and 132 transitions. [2018-11-18 09:46:15,296 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 132 transitions. [2018-11-18 09:46:15,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 09:46:15,297 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:46:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:46:17,012 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 33 [2018-11-18 09:46:17,671 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 36 [2018-11-18 09:46:17,923 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 43 [2018-11-18 09:46:18,286 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 39 [2018-11-18 09:46:18,690 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 39 [2018-11-18 09:46:19,232 WARN L180 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 41 [2018-11-18 09:46:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:47:13,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:47:13,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 100 states and 184 transitions. [2018-11-18 09:47:13,708 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 184 transitions. [2018-11-18 09:47:13,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 09:47:13,708 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:47:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:47:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:47:50,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:47:50,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 105 states and 193 transitions. [2018-11-18 09:47:50,595 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 193 transitions. [2018-11-18 09:47:50,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 09:47:50,596 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:47:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:47:52,250 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 36 [2018-11-18 09:47:52,511 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 15 [2018-11-18 09:47:53,045 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 34 [2018-11-18 09:47:53,278 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 34 [2018-11-18 09:47:53,578 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 48 [2018-11-18 09:47:54,062 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 51 [2018-11-18 09:47:54,382 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 57 [2018-11-18 09:47:54,706 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 35 [2018-11-18 09:47:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:48:49,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:48:49,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 120 states and 223 transitions. [2018-11-18 09:48:49,611 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 223 transitions. [2018-11-18 09:48:49,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 09:48:49,612 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:48:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:52,308 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 36 [2018-11-18 09:48:52,954 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 42 [2018-11-18 09:48:53,833 WARN L180 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 40 [2018-11-18 09:48:54,407 WARN L180 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 43 [2018-11-18 09:48:55,008 WARN L180 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 43 [2018-11-18 09:48:55,662 WARN L180 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 35 [2018-11-18 09:48:56,334 WARN L180 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 40 [2018-11-18 09:48:56,999 WARN L180 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 38 [2018-11-18 09:48:57,605 WARN L180 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 20 [2018-11-18 09:48:58,536 WARN L180 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 35 [2018-11-18 09:48:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:49:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:49:12,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 132 states and 246 transitions. [2018-11-18 09:49:12,867 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 246 transitions. [2018-11-18 09:49:12,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 09:49:12,868 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:49:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:49:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:49:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:49:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 124 states and 229 transitions. [2018-11-18 09:49:16,172 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 229 transitions. [2018-11-18 09:49:16,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 09:49:16,173 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:49:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:49:18,731 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 36 [2018-11-18 09:49:19,316 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 27 [2018-11-18 09:49:19,639 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 37 [2018-11-18 09:49:20,304 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 41 [2018-11-18 09:49:21,073 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 50 [2018-11-18 09:49:21,563 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 51 [2018-11-18 09:49:22,387 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 53 [2018-11-18 09:49:23,174 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 51 [2018-11-18 09:49:23,881 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 24 [2018-11-18 09:49:24,610 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 37 [2018-11-18 09:49:24,649 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:49:28,136 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2018-11-18 09:49:41,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:49:41,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 142 states and 276 transitions. [2018-11-18 09:49:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 276 transitions. [2018-11-18 09:49:41,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 09:49:41,465 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 09:49:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:49:48,474 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 31 [2018-11-18 09:49:49,184 WARN L180 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 23 [2018-11-18 09:49:51,054 WARN L180 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 36 [2018-11-18 09:49:53,208 WARN L180 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 52 [2018-11-18 09:49:54,789 WARN L180 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 45 [2018-11-18 09:49:57,555 WARN L180 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 451 DAG size of output: 57 [2018-11-18 09:50:00,274 WARN L180 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 511 DAG size of output: 53 [2018-11-18 09:50:02,710 WARN L180 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 546 DAG size of output: 49 [2018-11-18 09:50:05,574 WARN L180 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 587 DAG size of output: 68 [2018-11-18 09:50:07,283 WARN L180 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 367 DAG size of output: 42 [2018-11-18 09:50:10,001 WARN L180 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 404 DAG size of output: 67 [2018-11-18 09:50:11,478 WARN L180 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 45 [2018-11-18 09:50:13,638 WARN L180 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 55 [2018-11-18 09:50:14,584 WARN L180 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 36 [2018-11-18 09:50:16,004 WARN L180 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 367 DAG size of output: 50 [2018-11-18 09:50:17,306 WARN L180 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 59 [2018-11-18 09:50:18,615 WARN L180 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 21 [2018-11-18 09:50:19,713 WARN L180 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 26 [2018-11-18 09:50:21,287 WARN L180 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 26 [2018-11-18 09:50:22,824 WARN L180 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 36 [2018-11-18 09:50:22,895 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:50:25,535 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2018-11-18 09:50:26,526 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2018-11-18 09:50:26,698 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2018-11-18 09:51:15,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 09:51:15,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 147 states and 293 transitions. [2018-11-18 09:51:15,644 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 293 transitions. [2018-11-18 09:51:15,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:51:15,644 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 18 iterations. [2018-11-18 09:51:15,650 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 09:51:16,187 WARN L180 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 81 [2018-11-18 09:51:16,478 WARN L180 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 75 [2018-11-18 09:51:16,892 WARN L180 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 72 [2018-11-18 09:51:17,224 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 57 [2018-11-18 09:51:17,518 WARN L180 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 75 [2018-11-18 09:51:17,518 INFO L579 CodeCheckObserver]: Invariant with dag size 81 [2018-11-18 09:51:17,530 INFO L579 CodeCheckObserver]: Invariant with dag size 75 [2018-11-18 09:51:17,532 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 09:51:17,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 09:51:17 ImpRootNode [2018-11-18 09:51:17,533 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 09:51:17,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:51:17,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:51:17,533 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:51:17,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:44:27" (3/4) ... [2018-11-18 09:51:17,538 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:51:17,555 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 218 nodes and edges [2018-11-18 09:51:17,557 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-18 09:51:17,558 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 09:51:17,559 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 09:51:17,644 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c8e962b4-4d92-4bf4-81b3-25f84511c8af/bin-2019/ukojak/witness.graphml [2018-11-18 09:51:17,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:51:17,645 INFO L168 Benchmark]: Toolchain (without parser) took 702624.52 ms. Allocated memory was 1.0 GB in the beginning and 2.9 GB in the end (delta: 1.8 GB). Free memory was 956.6 MB in the beginning and 2.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 388.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:51:17,645 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:51:17,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.92 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 912.5 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:51:17,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 912.5 MB in the beginning and 1.1 GB in the end (delta: -215.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:51:17,646 INFO L168 Benchmark]: Boogie Preprocessor took 48.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:51:17,646 INFO L168 Benchmark]: RCFGBuilder took 292066.67 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.3 MB). Free memory was 1.1 GB in the beginning and 890.8 MB in the end (delta: 231.2 MB). Peak memory consumption was 394.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:51:17,647 INFO L168 Benchmark]: CodeCheck took 409874.81 ms. Allocated memory was 1.2 GB in the beginning and 2.9 GB in the end (delta: 1.6 GB). Free memory was 890.8 MB in the beginning and 2.4 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.9 GB. Max. memory is 11.5 GB. [2018-11-18 09:51:17,647 INFO L168 Benchmark]: Witness Printer took 111.64 ms. Allocated memory is still 2.9 GB. Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 3.8 kB). Peak memory consumption was 3.8 kB. Max. memory is 11.5 GB. [2018-11-18 09:51:17,648 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 1 procedures, 246 locations, 1 error locations. SAFE Result, 407.9s OverallTime, 18 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 985664 SDtfs, 2438602 SDslu, 2377208 SDs, 0 SdLazy, 4676526 SolverSat, 792984 SolverUnsat, 115708 SolverUnknown, 0 SolverNotchecked, 2102.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4991 GetRequests, 4143 SyntacticMatches, 298 SemanticMatches, 550 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212086 ImplicationChecksByTransitivity, 91.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 6.0s SatisfiabilityAnalysisTime, 72.0s InterpolantComputationTime, 467 NumberOfCodeBlocks, 467 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 595780 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1177 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: 151]: 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: 20]: Loop Invariant Derived loop invariant: (((((((((((a24 == 2 && a15 == 8) && !(a12 + 49 <= 0)) || ((!(a15 == 9) && !(a12 <= 145)) && !(a15 == 8))) || (!(a12 <= 80) && a12 <= 599997)) || (!(a24 == 1) && !(a15 == 9) && !(a15 == 8))) || ((!(a12 <= 11) && (80 < a12 || !(a21 == 10))) && (a12 <= 80 || a21 == 10))) || ((a12 + 49 <= 0 || (!(a15 == 9) && a21 == 7)) && !(0 <= a12 + 49 && a12 + 49 <= 0))) || ((!(a12 + 49 <= 0) && !(7 == a15)) && !(a15 == 9) && ((a21 == 6 || a21 == 10) || a12 <= 11))) || ((((((((2 == input || 4 == input) || 3 == input) || 6 == input) || 1 == input) || 5 == input) && a24 == 1) && a21 == 7) && a12 + 49 <= 0)) || (((((((((2 == input || 4 == input) || 3 == input) || 6 == input) || 1 == input) || 5 == input) && a21 == 10) && 1 <= a24) && a24 <= 1) && a12 + 49 <= 0)) || (a12 <= 11 && !(a15 == 8))) || ((a12 <= 2209061 || 2809112 <= a12) && a15 == 9) - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((((((((!(a24 == 1) || !(a15 == 7)) && !(!(a15 == 9) && (165879 <= a12 || a12 + 1 <= 0))) && (!(a15 == 9) || a21 == 10)) || ((0 < a12 + 49 && a24 == 2) && a15 == 8)) || ((!(a15 == 9) && (!(a24 == 1) || !(a15 == 7))) && !(a15 == 8))) || !(0 <= a12 + 49)) || ((!(a15 == 9) && 0 < a12 + 49) && a21 == 7)) || (a12 <= 599997 && 586307 < a12)) || (!(a12 <= 73282) && a12 <= 586307)) || ((a12 <= 2209061 || 2809112 <= a12) && a15 == 9)) || (!(a12 + 49 <= 0) && a12 <= 11)) || (((!(a15 == 9) && 0 < a12 + 49) && !(7 == a15)) && (6 == a21 || a21 == 10))) || ((81 <= a12 || !(a21 == 10)) && a15 == 7)) || ((a24 == 1 && a21 == 10) && a12 + 49 <= 0)) || ((a24 == 1 && a21 == 7) && a12 + 49 <= 0) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 402.92 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 912.5 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 116.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 912.5 MB in the beginning and 1.1 GB in the end (delta: -215.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 292066.67 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.3 MB). Free memory was 1.1 GB in the beginning and 890.8 MB in the end (delta: 231.2 MB). Peak memory consumption was 394.6 MB. Max. memory is 11.5 GB. * CodeCheck took 409874.81 ms. Allocated memory was 1.2 GB in the beginning and 2.9 GB in the end (delta: 1.6 GB). Free memory was 890.8 MB in the beginning and 2.4 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.9 GB. Max. memory is 11.5 GB. * Witness Printer took 111.64 ms. Allocated memory is still 2.9 GB. Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 3.8 kB). Peak memory consumption was 3.8 kB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...