./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/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 e05793781d8e05fe8376a30b6751438f3b1a9d08 .............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:58:18,608 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:58:18,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:58:18,621 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:58:18,621 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:58:18,622 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:58:18,623 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:58:18,625 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:58:18,626 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:58:18,627 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:58:18,629 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:58:18,629 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:58:18,630 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:58:18,631 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:58:18,632 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:58:18,633 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:58:18,634 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:58:18,635 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:58:18,637 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:58:18,638 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:58:18,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:58:18,641 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:58:18,643 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:58:18,643 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:58:18,644 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:58:18,645 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:58:18,646 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:58:18,646 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:58:18,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:58:18,648 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:58:18,648 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:58:18,649 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:58:18,649 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:58:18,649 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:58:18,650 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:58:18,650 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:58:18,651 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-27 00:58:18,664 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:58:18,664 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:58:18,665 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:58:18,665 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 00:58:18,666 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 00:58:18,666 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 00:58:18,666 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:58:18,666 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:58:18,667 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:58:18,667 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:58:18,667 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:58:18,667 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:58:18,667 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:58:18,669 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:58:18,669 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:58:18,669 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:58:18,669 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:58:18,669 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-27 00:58:18,670 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-27 00:58:18,670 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:58:18,670 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:58:18,670 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 00:58:18,670 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:58:18,670 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:58:18,671 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:58:18,671 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-27 00:58:18,671 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:58:18,671 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:58:18,673 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_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/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 -> e05793781d8e05fe8376a30b6751438f3b1a9d08 [2018-10-27 00:58:18,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:58:18,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:58:18,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:58:18,724 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:58:18,724 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:58:18,725 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c [2018-10-27 00:58:18,786 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/data/45da47186/b46803024ccd4d71b652b4b5b460f34f/FLAGcd7017c34 [2018-10-27 00:58:19,152 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:58:19,153 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/sv-benchmarks/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c [2018-10-27 00:58:19,159 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/data/45da47186/b46803024ccd4d71b652b4b5b460f34f/FLAGcd7017c34 [2018-10-27 00:58:19,172 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/data/45da47186/b46803024ccd4d71b652b4b5b460f34f [2018-10-27 00:58:19,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:58:19,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:58:19,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:58:19,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:58:19,181 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:58:19,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b088054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19, skipping insertion in model container [2018-10-27 00:58:19,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:58:19,212 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:58:19,339 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:58:19,342 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:58:19,353 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:58:19,363 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:58:19,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19 WrapperNode [2018-10-27 00:58:19,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:58:19,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:58:19,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:58:19,365 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:58:19,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:58:19,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:58:19,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:58:19,396 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:58:19,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:58:19,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:58:19,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:58:19,414 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:58:19,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/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 [2018-10-27 00:58:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:58:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:58:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-10-27 00:58:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-10-27 00:58:19,885 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:58:19,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:58:19 BoogieIcfgContainer [2018-10-27 00:58:19,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:58:19,886 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-27 00:58:19,886 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-27 00:58:19,906 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-27 00:58:19,907 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:58:19" (1/1) ... [2018-10-27 00:58:19,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:58:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:58:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-10-27 00:58:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-10-27 00:58:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 00:58:19,979 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:58:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:58:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:58:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2018-10-27 00:58:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-10-27 00:58:20,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 00:58:20,311 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:58:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 00:58:20,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:58:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2018-10-27 00:58:20,752 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-10-27 00:58:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 00:58:20,753 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:58:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:20,811 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-27 00:58:21,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:58:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2018-10-27 00:58:21,037 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-10-27 00:58:21,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-27 00:58:21,038 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:58:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:21,119 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-27 00:58:21,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:58:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2018-10-27 00:58:21,610 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2018-10-27 00:58:21,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 00:58:21,611 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:58:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:21,681 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-27 00:58:21,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:58:21,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 28 states and 44 transitions. [2018-10-27 00:58:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2018-10-27 00:58:21,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-27 00:58:21,873 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:58:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:22,398 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-10-27 00:58:24,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:58:24,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 47 states and 94 transitions. [2018-10-27 00:58:24,783 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 94 transitions. [2018-10-27 00:58:24,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-27 00:58:24,785 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:58:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:25,487 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-10-27 00:58:27,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:58:27,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 29 states and 31 transitions. [2018-10-27 00:58:27,783 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-10-27 00:58:27,783 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:58:27,784 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2018-10-27 00:58:27,796 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-10-27 00:58:28,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 27.10 12:58:28 ImpRootNode [2018-10-27 00:58:28,006 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-27 00:58:28,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:58:28,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:58:28,007 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:58:28,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:58:19" (3/4) ... [2018-10-27 00:58:28,011 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:58:28,018 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-10-27 00:58:28,023 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-27 00:58:28,024 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 00:58:28,024 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 00:58:28,063 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6dfc4d75-cf7f-490f-8788-ff8b150bb5e6/bin-2019/ukojak/witness.graphml [2018-10-27 00:58:28,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:58:28,064 INFO L168 Benchmark]: Toolchain (without parser) took 8887.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -107.7 MB). Peak memory consumption was 74.2 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:28,065 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:58:28,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.97 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:28,066 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.91 ms. Allocated memory is still 1.0 GB. Free memory is still 951.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:58:28,067 INFO L168 Benchmark]: Boogie Preprocessor took 17.90 ms. Allocated memory is still 1.0 GB. Free memory was 951.6 MB in the beginning and 946.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:28,067 INFO L168 Benchmark]: RCFGBuilder took 471.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:28,068 INFO L168 Benchmark]: CodeCheck took 8120.32 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 36.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 59.7 MB). Peak memory consumption was 96.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:28,069 INFO L168 Benchmark]: Witness Printer took 56.03 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:28,072 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 2 procedures, 16 locations, 1 error locations. SAFE Result, 7.8s OverallTime, 8 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 904 SDtfs, 860 SDslu, 1392 SDs, 0 SdLazy, 4792 SolverSat, 1160 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2101 GetRequests, 1909 SyntacticMatches, 72 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5044 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 16464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 204/294 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: 13]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.97 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.91 ms. Allocated memory is still 1.0 GB. Free memory is still 951.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.90 ms. Allocated memory is still 1.0 GB. Free memory was 951.6 MB in the beginning and 946.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 471.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * CodeCheck took 8120.32 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 36.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 59.7 MB). Peak memory consumption was 96.4 MB. Max. memory is 11.5 GB. * Witness Printer took 56.03 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...