./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o5_true-unreach-call_true-termination_true-no-overflow.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_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o5_true-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/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 ceb806ae997f94b7f09b4e2dce31a0e63ff1a329 .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 16:15:41,968 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 16:15:41,969 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 16:15:41,975 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 16:15:41,975 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 16:15:41,976 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 16:15:41,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 16:15:41,977 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 16:15:41,978 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 16:15:41,979 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 16:15:41,979 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 16:15:41,979 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 16:15:41,980 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 16:15:41,980 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 16:15:41,981 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 16:15:41,981 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 16:15:41,982 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 16:15:41,983 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 16:15:41,984 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 16:15:41,984 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 16:15:41,985 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 16:15:41,986 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 16:15:41,987 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 16:15:41,987 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 16:15:41,987 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 16:15:41,988 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 16:15:41,988 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 16:15:41,989 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 16:15:41,989 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 16:15:41,990 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 16:15:41,990 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 16:15:41,990 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 16:15:41,990 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 16:15:41,991 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 16:15:41,991 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 16:15:41,992 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 16:15:41,992 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-08 16:15:41,999 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 16:15:41,999 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 16:15:42,000 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 16:15:42,000 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-08 16:15:42,000 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 16:15:42,000 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 16:15:42,000 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 16:15:42,000 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 16:15:42,001 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 16:15:42,001 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 16:15:42,001 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 16:15:42,001 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 16:15:42,001 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 16:15:42,001 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 16:15:42,001 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 16:15:42,001 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 16:15:42,002 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 16:15:42,002 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 16:15:42,002 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 16:15:42,002 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 16:15:42,002 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 16:15:42,002 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 16:15:42,002 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 16:15:42,002 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 16:15:42,003 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 16:15:42,003 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 16:15:42,003 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 16:15:42,003 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 16:15:42,003 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 16:15:42,003 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_3af91ed1-a17d-497e-8161-824a6bdee8f6/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 -> ceb806ae997f94b7f09b4e2dce31a0e63ff1a329 [2018-12-08 16:15:42,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 16:15:42,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 16:15:42,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 16:15:42,030 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 16:15:42,030 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 16:15:42,031 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id2_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-12-08 16:15:42,066 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/data/ea43a594f/6572ec2431694bddae93f6bdf5192757/FLAGf121e7a2e [2018-12-08 16:15:42,431 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 16:15:42,431 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/sv-benchmarks/c/recursive-simple/id2_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-12-08 16:15:42,436 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/data/ea43a594f/6572ec2431694bddae93f6bdf5192757/FLAGf121e7a2e [2018-12-08 16:15:42,804 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/data/ea43a594f/6572ec2431694bddae93f6bdf5192757 [2018-12-08 16:15:42,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 16:15:42,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 16:15:42,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 16:15:42,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 16:15:42,811 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 16:15:42,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709ce3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42, skipping insertion in model container [2018-12-08 16:15:42,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 16:15:42,831 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 16:15:42,914 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:15:42,916 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 16:15:42,925 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:15:42,932 INFO L195 MainTranslator]: Completed translation [2018-12-08 16:15:42,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42 WrapperNode [2018-12-08 16:15:42,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 16:15:42,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 16:15:42,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 16:15:42,933 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 16:15:42,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 16:15:42,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 16:15:42,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 16:15:42,951 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 16:15:42,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42" (1/1) ... [2018-12-08 16:15:42,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 16:15:42,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 16:15:42,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 16:15:42,961 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 16:15:42,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:15:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/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 [2018-12-08 16:15:43,020 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2018-12-08 16:15:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2018-12-08 16:15:43,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 16:15:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 16:15:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-12-08 16:15:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-12-08 16:15:43,131 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 16:15:43,131 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 16:15:43,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:15:43 BoogieIcfgContainer [2018-12-08 16:15:43,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 16:15:43,132 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 16:15:43,132 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 16:15:43,139 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 16:15:43,139 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:15:43" (1/1) ... [2018-12-08 16:15:43,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:15:43,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:15:43,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2018-12-08 16:15:43,170 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-12-08 16:15:43,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 16:15:43,173 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:15:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:15:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:15:43,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:15:43,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2018-12-08 16:15:43,349 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-12-08 16:15:43,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 16:15:43,350 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:15:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:15:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:15:43,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:15:43,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2018-12-08 16:15:43,668 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2018-12-08 16:15:43,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 16:15:43,669 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:15:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:15:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 16:15:44,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:15:44,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 39 states and 49 transitions. [2018-12-08 16:15:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2018-12-08 16:15:44,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 16:15:44,540 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:15:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:15:44,780 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-08 16:15:45,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:15:45,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 45 states and 56 transitions. [2018-12-08 16:15:45,150 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2018-12-08 16:15:45,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-08 16:15:45,151 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:15:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:15:45,402 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-08 16:15:45,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:15:45,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 49 states and 59 transitions. [2018-12-08 16:15:45,740 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2018-12-08 16:15:45,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-08 16:15:45,741 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:15:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:15:46,185 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 16:15:46,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:15:46,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 40 states and 45 transitions. [2018-12-08 16:15:46,466 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-12-08 16:15:46,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 16:15:46,467 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2018-12-08 16:15:46,473 INFO L779 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-12-08 16:15:46,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 04:15:46 ImpRootNode [2018-12-08 16:15:46,536 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 16:15:46,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 16:15:46,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 16:15:46,537 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 16:15:46,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:15:43" (3/4) ... [2018-12-08 16:15:46,539 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 16:15:46,543 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2018-12-08 16:15:46,543 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-12-08 16:15:46,545 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 16:15:46,546 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 16:15:46,570 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3af91ed1-a17d-497e-8161-824a6bdee8f6/bin-2019/ukojak/witness.graphml [2018-12-08 16:15:46,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 16:15:46,571 INFO L168 Benchmark]: Toolchain (without parser) took 3764.44 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.8 MB). Free memory was 954.9 MB in the beginning and 1.2 GB in the end (delta: -195.2 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. [2018-12-08 16:15:46,572 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:15:46,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 124.88 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:15:46,573 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.74 ms. Allocated memory is still 1.0 GB. Free memory is still 944.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:15:46,573 INFO L168 Benchmark]: Boogie Preprocessor took 9.56 ms. Allocated memory is still 1.0 GB. Free memory was 944.2 MB in the beginning and 938.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 16:15:46,573 INFO L168 Benchmark]: RCFGBuilder took 170.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-08 16:15:46,574 INFO L168 Benchmark]: CodeCheck took 3404.15 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -42.9 MB). Peak memory consumption was 136.9 MB. Max. memory is 11.5 GB. [2018-12-08 16:15:46,574 INFO L168 Benchmark]: Witness Printer took 34.43 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:15:46,575 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 3 procedures, 23 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 7 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 800 SDtfs, 304 SDslu, 480 SDs, 0 SdLazy, 1916 SolverSat, 932 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1014 GetRequests, 869 SyntacticMatches, 47 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3889 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 16720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 38/66 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: 25]: 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 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 124.88 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.2 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 17.74 ms. Allocated memory is still 1.0 GB. Free memory is still 944.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.56 ms. Allocated memory is still 1.0 GB. Free memory was 944.2 MB in the beginning and 938.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 170.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * CodeCheck took 3404.15 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -42.9 MB). Peak memory consumption was 136.9 MB. Max. memory is 11.5 GB. * Witness Printer took 34.43 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...