./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/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 0449565d36be00deee168302da89fb227fc941e3 ............................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:57:35,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:57:35,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:57:35,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:57:35,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:57:35,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:57:35,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:57:35,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:57:35,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:57:35,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:57:35,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:57:35,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:57:35,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:57:35,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:57:35,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:57:35,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:57:35,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:57:35,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:57:35,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:57:35,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:57:35,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:57:35,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:57:35,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:57:35,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:57:35,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:57:35,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:57:35,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:57:35,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:57:35,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:57:35,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:57:35,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:57:35,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:57:35,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:57:35,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:57:35,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:57:35,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:57:35,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:57:35,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:57:35,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:57:35,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:57:35,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:57:35,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:57:35,943 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:57:35,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:57:35,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:57:35,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:57:35,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:57:35,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:57:35,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:57:35,945 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:57:35,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:57:35,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:57:35,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:57:35,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:57:35,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:57:35,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:57:35,947 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:57:35,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:57:35,947 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:57:35,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:57:35,947 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:57:35,947 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:57:35,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:57:35,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:57:35,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:57:35,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:57:35,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:57:35,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:57:35,949 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:57:35,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:57:35,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:57:35,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/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 -> 0449565d36be00deee168302da89fb227fc941e3 [2019-11-26 02:57:36,097 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:57:36,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:57:36,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:57:36,114 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:57:36,114 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:57:36,114 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c [2019-11-26 02:57:36,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/data/a5bf76241/e53fb84438a4490b8c5082c321a9418c/FLAG0a480da8d [2019-11-26 02:57:36,545 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:57:36,546 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/sv-benchmarks/c/recursive-simple/id_b5_o10-2.c [2019-11-26 02:57:36,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/data/a5bf76241/e53fb84438a4490b8c5082c321a9418c/FLAG0a480da8d [2019-11-26 02:57:36,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/data/a5bf76241/e53fb84438a4490b8c5082c321a9418c [2019-11-26 02:57:36,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:57:36,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:57:36,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:36,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:57:36,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:57:36,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39145468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36, skipping insertion in model container [2019-11-26 02:57:36,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:57:36,603 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:57:36,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:36,729 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:57:36,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:36,813 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:57:36,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36 WrapperNode [2019-11-26 02:57:36,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:36,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:36,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:57:36,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:57:36,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:36,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:57:36,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:57:36,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:57:36,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36" (1/1) ... [2019-11-26 02:57:36,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:57:36,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:57:36,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:57:36,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:57:36,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/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 [2019-11-26 02:57:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:57:36,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:57:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-11-26 02:57:36,939 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-11-26 02:57:37,186 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:57:37,186 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:57:37,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:37 BoogieIcfgContainer [2019-11-26 02:57:37,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:57:37,188 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:57:37,189 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:57:37,196 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:57:37,197 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:37" (1/1) ... [2019-11-26 02:57:37,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:57:37,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2019-11-26 02:57:37,240 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-26 02:57:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:57:37,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:57:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:57:37,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:57:37,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2019-11-26 02:57:37,509 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-26 02:57:37,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:57:37,510 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:57:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:57:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:57:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2019-11-26 02:57:38,175 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-11-26 02:57:38,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:57:38,175 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2019-11-26 02:57:38,183 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-26 02:57:38,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:57:38 ImpRootNode [2019-11-26 02:57:38,265 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:57:38,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:57:38,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:57:38,266 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:57:38,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:37" (3/4) ... [2019-11-26 02:57:38,269 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:57:38,275 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2019-11-26 02:57:38,282 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:57:38,283 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:57:38,348 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e4a6ab13-17c5-430d-9ff9-87623cf80699/bin/ukojak/witness.graphml [2019-11-26 02:57:38,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:57:38,352 INFO L168 Benchmark]: Toolchain (without parser) took 1780.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -85.0 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:38,353 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:38,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -204.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:38,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:38,354 INFO L168 Benchmark]: Boogie Preprocessor took 13.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:38,355 INFO L168 Benchmark]: RCFGBuilder took 332.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:38,355 INFO L168 Benchmark]: CodeCheck took 1077.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.8 MB). Peak memory consumption was 93.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:38,356 INFO L168 Benchmark]: Witness Printer took 84.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:38,362 INFO L335 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, 14 locations, 1 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 12 SDslu, 20 SDs, 0 SdLazy, 84 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 15]: 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 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -204.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 332.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * CodeCheck took 1077.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.8 MB). Peak memory consumption was 93.8 MB. Max. memory is 11.5 GB. * Witness Printer took 84.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...