./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o2_false-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_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o2_false-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/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 a033d09eab07f8bc6e49bb4301ebd6c89110f535 ................................................................................................................................................................................................................................................. 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 [2018-12-01 12:47:37,574 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 12:47:37,575 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 12:47:37,583 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 12:47:37,583 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 12:47:37,583 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 12:47:37,584 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 12:47:37,585 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 12:47:37,586 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 12:47:37,587 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 12:47:37,587 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 12:47:37,588 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 12:47:37,588 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 12:47:37,589 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 12:47:37,590 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 12:47:37,590 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 12:47:37,591 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 12:47:37,592 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 12:47:37,593 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 12:47:37,594 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 12:47:37,595 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 12:47:37,596 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 12:47:37,597 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 12:47:37,598 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 12:47:37,598 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 12:47:37,598 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 12:47:37,599 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 12:47:37,600 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 12:47:37,600 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 12:47:37,601 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 12:47:37,601 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 12:47:37,602 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 12:47:37,602 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 12:47:37,602 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 12:47:37,602 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 12:47:37,603 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 12:47:37,603 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-01 12:47:37,613 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 12:47:37,613 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 12:47:37,614 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 12:47:37,614 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-01 12:47:37,614 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 12:47:37,614 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 12:47:37,614 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 12:47:37,615 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 12:47:37,615 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 12:47:37,615 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 12:47:37,615 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 12:47:37,615 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 12:47:37,615 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 12:47:37,615 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 12:47:37,615 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 12:47:37,615 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 12:47:37,615 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 12:47:37,616 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 12:47:37,616 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 12:47:37,616 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 12:47:37,616 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 12:47:37,616 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 12:47:37,616 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 12:47:37,616 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 12:47:37,616 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 12:47:37,616 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 12:47:37,617 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 12:47:37,617 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 12:47:37,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 12:47:37,617 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_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/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 -> a033d09eab07f8bc6e49bb4301ebd6c89110f535 [2018-12-01 12:47:37,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 12:47:37,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 12:47:37,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 12:47:37,652 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 12:47:37,652 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 12:47:37,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id2_b3_o2_false-unreach-call_true-termination_true-no-overflow.c [2018-12-01 12:47:37,689 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/data/fe86429c4/bb5bb2ed4a4d4d5d88b61365d59dbd56/FLAGd0796ace6 [2018-12-01 12:47:38,058 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 12:47:38,059 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/sv-benchmarks/c/recursive-simple/id2_b3_o2_false-unreach-call_true-termination_true-no-overflow.c [2018-12-01 12:47:38,062 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/data/fe86429c4/bb5bb2ed4a4d4d5d88b61365d59dbd56/FLAGd0796ace6 [2018-12-01 12:47:38,070 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/data/fe86429c4/bb5bb2ed4a4d4d5d88b61365d59dbd56 [2018-12-01 12:47:38,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 12:47:38,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 12:47:38,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 12:47:38,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 12:47:38,075 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 12:47:38,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7084b22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38, skipping insertion in model container [2018-12-01 12:47:38,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 12:47:38,089 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 12:47:38,171 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 12:47:38,173 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 12:47:38,182 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 12:47:38,190 INFO L195 MainTranslator]: Completed translation [2018-12-01 12:47:38,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38 WrapperNode [2018-12-01 12:47:38,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 12:47:38,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 12:47:38,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 12:47:38,191 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 12:47:38,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 12:47:38,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 12:47:38,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 12:47:38,209 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 12:47:38,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 12:47:38,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 12:47:38,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 12:47:38,247 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 12:47:38,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:47:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/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 [2018-12-01 12:47:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2018-12-01 12:47:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2018-12-01 12:47:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 12:47:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 12:47:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-12-01 12:47:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-12-01 12:47:38,384 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 12:47:38,384 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-01 12:47:38,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 12:47:38 BoogieIcfgContainer [2018-12-01 12:47:38,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 12:47:38,385 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 12:47:38,385 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 12:47:38,392 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 12:47:38,392 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 12:47:38" (1/1) ... [2018-12-01 12:47:38,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:47:38,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 12:47:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2018-12-01 12:47:38,424 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-12-01 12:47:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 12:47:38,427 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 12:47:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 12:47:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 12:47:38,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 12:47:38,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2018-12-01 12:47:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-12-01 12:47:38,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-01 12:47:38,602 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 12:47:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 12:47:38,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 12:47:38,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 12:47:38,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2018-12-01 12:47:38,901 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2018-12-01 12:47:38,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-01 12:47:38,902 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 12:47:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:47:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:47:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:47:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:47:38,966 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2018-12-01 12:47:38,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 12:47:38 ImpRootNode [2018-12-01 12:47:38,986 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 12:47:38,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 12:47:38,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 12:47:38,986 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 12:47:38,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 12:47:38" (3/4) ... [2018-12-01 12:47:38,988 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 12:47:39,018 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5f4c9250-0d66-4ec6-87e3-20ff9f31f600/bin-2019/ukojak/witness.graphml [2018-12-01 12:47:39,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 12:47:39,019 INFO L168 Benchmark]: Toolchain (without parser) took 947.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 952.2 MB in the beginning and 976.2 MB in the end (delta: -23.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. [2018-12-01 12:47:39,020 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 12:47:39,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 117.70 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-01 12:47:39,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.81 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 12:47:39,021 INFO L168 Benchmark]: Boogie Preprocessor took 37.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-01 12:47:39,022 INFO L168 Benchmark]: RCFGBuilder took 137.97 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: 17.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-01 12:47:39,022 INFO L168 Benchmark]: CodeCheck took 600.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 978.8 MB in the end (delta: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. [2018-12-01 12:47:39,023 INFO L168 Benchmark]: Witness Printer took 32.64 ms. Allocated memory is still 1.1 GB. Free memory was 978.8 MB in the beginning and 976.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 12:47:39,026 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. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 SDtfs, 12 SDslu, 16 SDs, 0 SdLazy, 68 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 25]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] unsigned int input = __VERIFIER_nondet_uint(); [L23] CALL, EXPR id(input) VAL [\old(x)=2] [L8] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L9] CALL, EXPR id2(x-1) VAL [\old(x)=1] [L15] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L16] CALL, EXPR id(x-1) VAL [\old(x)=0] [L8] COND TRUE x==0 [L8] return 0; VAL [\old(x)=0, \result=0, x=0] [L16] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L16] unsigned int ret = id(x-1) + 1; [L17] COND FALSE !(ret > 3) [L18] return ret; VAL [\old(x)=1, \result=1, ret=1, x=1] [L9] RET, EXPR id2(x-1) VAL [\old(x)=2, id2(x-1)=1, x=2] [L9] unsigned int ret = id2(x-1) + 1; [L10] COND FALSE !(ret > 3) [L11] return ret; VAL [\old(x)=2, \result=2, ret=2, x=2] [L23] RET, EXPR id(input) [L23] unsigned int result = id(input); [L24] COND TRUE result == 2 [L25] __VERIFIER_error() * 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 117.70 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.81 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 137.97 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: 17.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * CodeCheck took 600.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 978.8 MB in the end (delta: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. * Witness Printer took 32.64 ms. Allocated memory is still 1.1 GB. Free memory was 978.8 MB in the beginning and 976.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...