./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec_2calls_false-unreach-call_true-termination.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_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/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 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 0.1.23-635dfa2 [2018-12-09 16:23:36,168 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:23:36,169 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:23:36,175 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:23:36,175 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:23:36,176 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:23:36,176 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:23:36,177 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:23:36,178 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:23:36,178 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:23:36,179 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:23:36,179 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:23:36,179 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:23:36,180 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:23:36,180 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:23:36,181 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:23:36,181 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:23:36,182 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:23:36,183 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:23:36,184 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:23:36,184 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:23:36,185 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:23:36,186 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:23:36,186 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:23:36,186 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:23:36,186 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:23:36,187 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:23:36,187 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:23:36,188 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:23:36,188 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:23:36,188 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:23:36,189 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:23:36,189 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:23:36,189 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:23:36,189 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:23:36,190 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:23:36,190 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-09 16:23:36,197 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:23:36,197 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:23:36,197 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:23:36,198 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 16:23:36,198 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 16:23:36,198 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 16:23:36,198 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:23:36,198 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:23:36,198 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 16:23:36,198 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:23:36,198 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:23:36,199 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:23:36,199 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:23:36,199 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:23:36,199 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:23:36,199 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:23:36,199 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 16:23:36,199 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:23:36,199 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 16:23:36,199 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 16:23:36,199 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:23:36,199 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:23:36,199 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 16:23:36,200 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:23:36,200 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:23:36,200 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:23:36,200 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 16:23:36,200 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:23:36,200 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 16:23:36,200 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_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/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 -> 7757e3f263599cd02799bfad01adb3bcaa895e82 [2018-12-09 16:23:36,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:23:36,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:23:36,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:23:36,230 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:23:36,230 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:23:36,231 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/afterrec_2calls_false-unreach-call_true-termination.c [2018-12-09 16:23:36,268 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/data/9e4b2d8e8/c0ea288101364ba4ac6cb82219c0d06b/FLAG8ee31c05f [2018-12-09 16:23:36,709 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:23:36,710 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/sv-benchmarks/c/recursive-simple/afterrec_2calls_false-unreach-call_true-termination.c [2018-12-09 16:23:36,713 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/data/9e4b2d8e8/c0ea288101364ba4ac6cb82219c0d06b/FLAG8ee31c05f [2018-12-09 16:23:36,721 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/data/9e4b2d8e8/c0ea288101364ba4ac6cb82219c0d06b [2018-12-09 16:23:36,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:23:36,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:23:36,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:23:36,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:23:36,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:23:36,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150dd7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36, skipping insertion in model container [2018-12-09 16:23:36,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:23:36,741 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:23:36,817 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:23:36,819 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:23:36,827 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:23:36,835 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:23:36,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36 WrapperNode [2018-12-09 16:23:36,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:23:36,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:23:36,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:23:36,836 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:23:36,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:23:36,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:23:36,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:23:36,853 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:23:36,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36" (1/1) ... [2018-12-09 16:23:36,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:23:36,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:23:36,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:23:36,863 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:23:36,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:23:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/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 [2018-12-09 16:23:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-12-09 16:23:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-12-09 16:23:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:23:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:23:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2018-12-09 16:23:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2018-12-09 16:23:37,011 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:23:37,012 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 16:23:37,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:23:37 BoogieIcfgContainer [2018-12-09 16:23:37,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:23:37,012 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 16:23:37,012 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 16:23:37,020 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 16:23:37,020 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:23:37" (1/1) ... [2018-12-09 16:23:37,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:23:37,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:23:37,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-12-09 16:23:37,052 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-09 16:23:37,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 16:23:37,057 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:23:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:23:37,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:23:37,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:23:37,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 20 transitions. [2018-12-09 16:23:37,262 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-12-09 16:23:37,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 16:23:37,263 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:23:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:23:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:23:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:23:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:23:37,298 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2018-12-09 16:23:37,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 04:23:37 ImpRootNode [2018-12-09 16:23:37,313 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 16:23:37,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:23:37,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:23:37,314 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:23:37,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:23:37" (3/4) ... [2018-12-09 16:23:37,316 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 16:23:37,341 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c0ae3ebe-30e7-4a89-8642-166d3f8793a9/bin-2019/ukojak/witness.graphml [2018-12-09 16:23:37,341 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:23:37,341 INFO L168 Benchmark]: Toolchain (without parser) took 617.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -101.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-09 16:23:37,342 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-12-09 16:23:37,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 110.83 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 16:23:37,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.62 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:23:37,343 INFO L168 Benchmark]: Boogie Preprocessor took 9.44 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:23:37,343 INFO L168 Benchmark]: RCFGBuilder took 148.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-09 16:23:37,343 INFO L168 Benchmark]: CodeCheck took 301.33 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: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2018-12-09 16:23:37,344 INFO L168 Benchmark]: Witness Printer took 27.01 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. [2018-12-09 16:23:37,345 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, 19 locations, 2 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s 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 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 - 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 0.14 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 110.83 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 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 17.62 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.44 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 148.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * CodeCheck took 301.33 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: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. * Witness Printer took 27.01 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...