./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_o3_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_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o3_false-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/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 9b6c190b845f4496788acb9553cb85e1e7dace14 .................................................................................................................................................................................................................................................... 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 10:13:23,399 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:13:23,400 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:13:23,405 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:13:23,406 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:13:23,406 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:13:23,407 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:13:23,407 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:13:23,408 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:13:23,409 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:13:23,409 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:13:23,409 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:13:23,410 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:13:23,410 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:13:23,411 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:13:23,411 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:13:23,411 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:13:23,412 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:13:23,413 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:13:23,414 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:13:23,414 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:13:23,415 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:13:23,416 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:13:23,416 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:13:23,416 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:13:23,417 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:13:23,417 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:13:23,418 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:13:23,418 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:13:23,418 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:13:23,419 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:13:23,419 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:13:23,419 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:13:23,419 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:13:23,420 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:13:23,420 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:13:23,420 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-09 10:13:23,427 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:13:23,427 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:13:23,427 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:13:23,428 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 10:13:23,428 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 10:13:23,428 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 10:13:23,428 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:13:23,428 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:13:23,428 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:13:23,428 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:13:23,428 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:13:23,429 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:13:23,429 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:13:23,429 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:13:23,429 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:13:23,429 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:13:23,429 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:13:23,429 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:13:23,429 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 10:13:23,429 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 10:13:23,429 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:13:23,429 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:13:23,429 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 10:13:23,430 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:13:23,430 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:13:23,430 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:13:23,430 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 10:13:23,430 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:13:23,430 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:13:23,430 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_edd285b4-af93-46f0-b4ec-5d38d72e14f9/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 -> 9b6c190b845f4496788acb9553cb85e1e7dace14 [2018-12-09 10:13:23,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:13:23,453 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:13:23,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:13:23,456 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:13:23,456 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:13:23,457 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_o3_false-unreach-call_true-termination_true-no-overflow.c [2018-12-09 10:13:23,489 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/data/3b1ce07c5/b60dd4ad863c42a3bf90e940b16b72ed/FLAGfc862a63a [2018-12-09 10:13:23,893 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:13:23,893 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/sv-benchmarks/c/recursive-simple/id_o3_false-unreach-call_true-termination_true-no-overflow.c [2018-12-09 10:13:23,896 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/data/3b1ce07c5/b60dd4ad863c42a3bf90e940b16b72ed/FLAGfc862a63a [2018-12-09 10:13:23,904 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/data/3b1ce07c5/b60dd4ad863c42a3bf90e940b16b72ed [2018-12-09 10:13:23,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:13:23,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:13:23,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:13:23,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:13:23,910 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:13:23,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:13:23" (1/1) ... [2018-12-09 10:13:23,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65074ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:23, skipping insertion in model container [2018-12-09 10:13:23,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:13:23" (1/1) ... [2018-12-09 10:13:23,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:13:23,925 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:13:24,006 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:13:24,008 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:13:24,016 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:13:24,023 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:13:24,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24 WrapperNode [2018-12-09 10:13:24,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:13:24,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:13:24,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:13:24,024 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:13:24,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24" (1/1) ... [2018-12-09 10:13:24,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24" (1/1) ... [2018-12-09 10:13:24,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:13:24,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:13:24,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:13:24,041 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:13:24,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24" (1/1) ... [2018-12-09 10:13:24,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24" (1/1) ... [2018-12-09 10:13:24,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24" (1/1) ... [2018-12-09 10:13:24,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24" (1/1) ... [2018-12-09 10:13:24,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24" (1/1) ... [2018-12-09 10:13:24,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24" (1/1) ... [2018-12-09 10:13:24,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24" (1/1) ... [2018-12-09 10:13:24,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:13:24,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:13:24,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:13:24,050 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:13:24,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:13:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/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 10:13:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:13:24,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:13:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-12-09 10:13:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-12-09 10:13:24,191 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:13:24,192 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 10:13:24,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:13:24 BoogieIcfgContainer [2018-12-09 10:13:24,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:13:24,192 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 10:13:24,192 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 10:13:24,198 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 10:13:24,199 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:13:24" (1/1) ... [2018-12-09 10:13:24,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:13:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:13:24,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-12-09 10:13:24,229 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-09 10:13:24,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 10:13:24,233 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:13:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:24,363 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 10:13:24,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:13:24,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2018-12-09 10:13:24,419 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-12-09 10:13:24,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 10:13:24,419 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:13:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:24,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 10:13:24,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:13:24,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2018-12-09 10:13:24,683 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-12-09 10:13:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 10:13:24,684 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:13:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:13:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 10:13:25,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:13:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2018-12-09 10:13:25,035 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2018-12-09 10:13:25,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:13:25,036 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:13:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:13:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:13:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:13:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:13:25,090 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2018-12-09 10:13:25,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 10:13:25 ImpRootNode [2018-12-09 10:13:25,109 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 10:13:25,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:13:25,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:13:25,110 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:13:25,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:13:24" (3/4) ... [2018-12-09 10:13:25,112 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 10:13:25,141 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_edd285b4-af93-46f0-b4ec-5d38d72e14f9/bin-2019/ukojak/witness.graphml [2018-12-09 10:13:25,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:13:25,142 INFO L168 Benchmark]: Toolchain (without parser) took 1235.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 957.1 MB in the beginning and 946.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 153.0 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:25,143 INFO L168 Benchmark]: CDTParser took 0.11 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 10:13:25,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.27 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 10:13:25,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.86 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 10:13:25,144 INFO L168 Benchmark]: Boogie Preprocessor took 8.54 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 10:13:25,145 INFO L168 Benchmark]: RCFGBuilder took 142.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:25,145 INFO L168 Benchmark]: CodeCheck took 917.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.0 MB in the end (delta: 169.4 MB). Peak memory consumption was 169.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:25,146 INFO L168 Benchmark]: Witness Printer took 31.79 ms. Allocated memory is still 1.2 GB. Free memory was 953.0 MB in the beginning and 946.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:13:25,149 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 2 procedures, 15 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 20 SDslu, 32 SDs, 0 SdLazy, 168 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 266 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 2776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 9/18 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: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] unsigned int input = __VERIFIER_nondet_uint(); [L11] CALL, EXPR id(input) VAL [\old(x)=3] [L5] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L6] CALL, EXPR id(x-1) VAL [\old(x)=2] [L5] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L6] CALL, EXPR id(x-1) VAL [\old(x)=1] [L5] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L6] CALL, EXPR id(x-1) VAL [\old(x)=0] [L5] COND TRUE x==0 [L5] return 0; VAL [\old(x)=0, \result=0, x=0] [L6] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] unsigned int result = id(input); [L12] COND TRUE result == 3 [L13] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 116.27 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 16.86 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 8.54 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 142.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * CodeCheck took 917.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.0 MB in the end (delta: 169.4 MB). Peak memory consumption was 169.4 MB. Max. memory is 11.5 GB. * Witness Printer took 31.79 ms. Allocated memory is still 1.2 GB. Free memory was 953.0 MB in the beginning and 946.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...