./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive/Addition02_false-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Addition02_false-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/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 4f9a38be18608b9918f157c72437435dc654871f ......................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 11:53:41,843 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:53:41,844 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:53:41,851 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:53:41,852 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:53:41,852 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:53:41,853 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:53:41,854 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:53:41,855 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:53:41,856 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:53:41,856 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:53:41,856 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:53:41,857 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:53:41,858 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:53:41,858 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:53:41,859 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:53:41,860 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:53:41,861 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:53:41,862 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:53:41,863 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:53:41,864 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:53:41,865 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:53:41,866 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:53:41,866 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:53:41,866 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:53:41,867 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:53:41,868 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:53:41,868 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:53:41,869 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:53:41,870 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:53:41,870 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:53:41,870 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:53:41,870 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:53:41,871 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:53:41,871 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:53:41,872 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:53:41,872 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 11:53:41,882 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:53:41,882 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:53:41,883 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:53:41,883 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 11:53:41,883 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:53:41,883 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:53:41,883 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:53:41,884 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:53:41,884 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:53:41,884 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:53:41,884 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:53:41,884 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:53:41,884 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:53:41,884 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:53:41,884 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:53:41,885 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:53:41,885 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:53:41,885 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:53:41,885 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 11:53:41,885 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 11:53:41,885 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:53:41,885 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:53:41,886 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 11:53:41,886 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:53:41,886 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:53:41,886 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:53:41,886 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 11:53:41,886 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:53:41,886 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:53:41,887 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_2c69d404-0cc9-4415-9396-2c13341869ec/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 -> 4f9a38be18608b9918f157c72437435dc654871f [2018-11-18 11:53:41,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:53:41,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:53:41,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:53:41,921 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:53:41,921 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:53:41,922 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/../../sv-benchmarks/c/recursive/Addition02_false-unreach-call_true-no-overflow_true-termination.c [2018-11-18 11:53:41,956 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/data/410aff608/3110a80e2b2745b38d3c8422cf16227a/FLAG02809a792 [2018-11-18 11:53:42,336 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:53:42,337 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/sv-benchmarks/c/recursive/Addition02_false-unreach-call_true-no-overflow_true-termination.c [2018-11-18 11:53:42,341 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/data/410aff608/3110a80e2b2745b38d3c8422cf16227a/FLAG02809a792 [2018-11-18 11:53:42,349 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/data/410aff608/3110a80e2b2745b38d3c8422cf16227a [2018-11-18 11:53:42,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:53:42,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:53:42,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:53:42,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:53:42,355 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:53:42,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ec56fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42, skipping insertion in model container [2018-11-18 11:53:42,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:53:42,377 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:53:42,473 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:53:42,475 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:53:42,484 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:53:42,491 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:53:42,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42 WrapperNode [2018-11-18 11:53:42,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:53:42,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:53:42,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:53:42,492 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:53:42,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:53:42,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:53:42,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:53:42,518 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:53:42,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:53:42,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:53:42,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:53:42,532 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:53:42,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:53:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/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 [2018-11-18 11:53:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:53:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:53:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2018-11-18 11:53:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2018-11-18 11:53:42,751 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:53:42,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:53:42 BoogieIcfgContainer [2018-11-18 11:53:42,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:53:42,752 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 11:53:42,752 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 11:53:42,760 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 11:53:42,760 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:53:42" (1/1) ... [2018-11-18 11:53:42,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:53:42,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:53:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2018-11-18 11:53:42,807 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2018-11-18 11:53:42,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:53:42,811 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:53:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:53:43,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:53:43,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:53:43,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 35 transitions. [2018-11-18 11:53:43,213 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-11-18 11:53:43,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 11:53:43,214 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:53:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:53:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:53:43,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:53:43,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 33 transitions. [2018-11-18 11:53:43,338 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2018-11-18 11:53:43,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 11:53:43,339 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:53:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:53:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:53:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:53:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:53:43,389 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2018-11-18 11:53:43,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 11:53:43 ImpRootNode [2018-11-18 11:53:43,413 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 11:53:43,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:53:43,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:53:43,414 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:53:43,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:53:42" (3/4) ... [2018-11-18 11:53:43,416 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 11:53:43,452 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2c69d404-0cc9-4415-9396-2c13341869ec/bin-2019/ukojak/witness.graphml [2018-11-18 11:53:43,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:53:43,453 INFO L168 Benchmark]: Toolchain (without parser) took 1101.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 958.1 MB in the beginning and 1.0 GB in the end (delta: -89.0 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:43,454 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:53:43,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.85 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:43,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.34 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:43,455 INFO L168 Benchmark]: Boogie Preprocessor took 14.00 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:53:43,455 INFO L168 Benchmark]: RCFGBuilder took 219.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:43,456 INFO L168 Benchmark]: CodeCheck took 661.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:43,456 INFO L168 Benchmark]: Witness Printer took 38.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:43,459 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, 22 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 3 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 6 SDslu, 8 SDs, 0 SdLazy, 84 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 828 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: 43]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L27] int m = __VERIFIER_nondet_int(); [L28] COND FALSE !(m < 0 || m > 1073741823) [L33] int n = __VERIFIER_nondet_int(); [L34] COND FALSE !(n < 0 || n > 1073741823) [L39] CALL, EXPR addition(m,n) VAL [\old(m)=0, \old(n)=1] [L14] COND FALSE !(n == 0) VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L17] COND TRUE n > 0 VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L18] CALL, EXPR addition(m+1, n-1) VAL [\old(m)=1, \old(n)=0] [L14] COND TRUE n == 0 [L15] RET return m; VAL [\old(m)=1, \old(n)=0, \result=1, m=1, n=0] [L18] EXPR addition(m+1, n-1) VAL [\old(m)=0, \old(n)=1, addition(m+1, n-1)=1, m=0, n=1] [L18] RET return addition(m+1, n-1); [L39] EXPR addition(m,n) [L39] int result = addition(m,n); [L40] COND FALSE !(result == m - n) [L43] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.85 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 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 25.34 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.00 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 219.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * CodeCheck took 661.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...