./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.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_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/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 7757e3f263599cd02799bfad01adb3bcaa895e82 ............................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:50:35,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:50:35,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:50:35,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:50:35,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:50:35,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:50:35,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:50:35,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:50:35,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:50:35,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:50:35,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:50:35,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:50:35,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:50:35,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:50:35,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:50:35,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:50:35,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:50:35,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:50:35,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:50:35,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:50:35,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:50:35,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:50:35,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:50:35,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:50:35,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:50:35,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:50:35,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:50:35,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:50:35,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:50:35,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:50:35,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:50:35,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:50:35,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:50:35,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:50:35,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:50:35,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:50:35,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:50:35,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:50:35,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:50:35,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:50:35,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:50:35,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:50:35,949 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:50:35,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:50:35,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:50:35,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:50:35,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:50:35,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:50:35,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:50:35,951 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:50:35,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:50:35,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:50:35,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:50:35,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:50:35,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:50:35,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:50:35,953 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:50:35,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:50:35,953 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:50:35,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:50:35,954 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:50:35,954 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:50:35,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:50:35,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:50:35,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:50:35,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:50:35,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:50:35,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:50:35,956 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:50:35,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:50:35,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:50:35,956 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_c6c8564e-311c-4927-921d-50c82849edb9/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 -> 7757e3f263599cd02799bfad01adb3bcaa895e82 [2019-11-26 02:50:36,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:50:36,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:50:36,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:50:36,109 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:50:36,110 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:50:36,110 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2019-11-26 02:50:36,161 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/data/e2ea2cf3a/a0bfe073ef354694a70186b92aa141ef/FLAGc354455a9 [2019-11-26 02:50:36,563 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:50:36,564 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2019-11-26 02:50:36,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/data/e2ea2cf3a/a0bfe073ef354694a70186b92aa141ef/FLAGc354455a9 [2019-11-26 02:50:36,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/data/e2ea2cf3a/a0bfe073ef354694a70186b92aa141ef [2019-11-26 02:50:36,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:50:36,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:50:36,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:36,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:50:36,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:50:36,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f83bd33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36, skipping insertion in model container [2019-11-26 02:50:36,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:50:36,620 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:50:36,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:36,776 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:50:36,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:36,863 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:50:36,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36 WrapperNode [2019-11-26 02:50:36,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:36,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:36,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:50:36,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:50:36,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:36,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:50:36,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:50:36,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:50:36,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36" (1/1) ... [2019-11-26 02:50:36,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:50:36,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:50:36,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:50:36,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:50:36,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/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 02:50:36,961 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-26 02:50:36,962 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-26 02:50:36,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:50:36,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:50:36,963 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2019-11-26 02:50:36,963 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2019-11-26 02:50:37,101 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:50:37,101 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:50:37,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:37 BoogieIcfgContainer [2019-11-26 02:50:37,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:50:37,103 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:50:37,103 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:50:37,112 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:50:37,113 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:37" (1/1) ... [2019-11-26 02:50:37,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:37,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:50:37,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2019-11-26 02:50:37,158 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-11-26 02:50:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:50:37,164 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:50:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:37,367 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 02:50:37,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:50:37,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 20 transitions. [2019-11-26 02:50:37,546 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-11-26 02:50:37,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:50:37,548 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:50:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:50:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:50:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:50:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:50:37,631 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-11-26 02:50:37,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:50:37 ImpRootNode [2019-11-26 02:50:37,667 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:50:37,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:50:37,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:50:37,668 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:50:37,668 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:37" (3/4) ... [2019-11-26 02:50:37,670 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:50:37,704 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c6c8564e-311c-4927-921d-50c82849edb9/bin/ukojak/witness.graphml [2019-11-26 02:50:37,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:50:37,707 INFO L168 Benchmark]: Toolchain (without parser) took 1117.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -108.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:37,707 INFO L168 Benchmark]: CDTParser took 0.29 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 02:50:37,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -167.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:37,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:50:37,709 INFO L168 Benchmark]: Boogie Preprocessor took 15.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:50:37,710 INFO L168 Benchmark]: RCFGBuilder took 196.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:37,711 INFO L168 Benchmark]: CodeCheck took 564.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:37,711 INFO L168 Benchmark]: Witness Printer took 37.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:50:37,714 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 3 procedures, 18 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 2 SDslu, 2 SDs, 0 SdLazy, 22 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - CounterExampleResult [Line: 17]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] CALL f(4) VAL [\old(n)=4] [L7] COND FALSE !(n<3) [L8] n-- VAL [\old(n)=4, n=3] [L9] CALL f2(n) VAL [\old(n)=3] [L14] COND FALSE !(n<3) [L15] n-- VAL [\old(n)=3, n=2] [L16] CALL f(n) VAL [\old(n)=2] [L7] COND TRUE n<3 VAL [\old(n)=2, n=2] [L16] RET f(n) VAL [\old(n)=3, n=2] [L17] __VERIFIER_error() VAL [\old(n)=3, n=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 275.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -167.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 196.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * CodeCheck took 564.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. * Witness Printer took 37.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...