./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/gcd01-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/gcd01-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ceea5216a7b51ee21eab36f0e9b129c25f18193871fb4ca0aa52ef8740fc0ce8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:15:26,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:15:26,193 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-25 05:15:26,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 05:15:26,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 05:15:26,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:15:26,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:15:26,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:15:26,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:15:26,223 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:15:26,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:15:26,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 05:15:26,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:15:26,225 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:15:26,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:15:26,225 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:15:26,225 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:15:26,225 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:15:26,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:15:26,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:15:26,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:15:26,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:15:26,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:15:26,226 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 05:15:26,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 05:15:26,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 ! overflow) ) 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 -> ceea5216a7b51ee21eab36f0e9b129c25f18193871fb4ca0aa52ef8740fc0ce8 [2024-11-25 05:15:26,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:15:26,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:15:26,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:15:26,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:15:26,509 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:15:26,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/recursive/gcd01-1.c [2024-11-25 05:15:29,544 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/data/4ae7c654b/e5992f7ee2ec4bda83e8ec783c37e295/FLAG41f253fcf [2024-11-25 05:15:29,796 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:15:29,796 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/sv-benchmarks/c/recursive/gcd01-1.c [2024-11-25 05:15:29,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/data/4ae7c654b/e5992f7ee2ec4bda83e8ec783c37e295/FLAG41f253fcf [2024-11-25 05:15:29,834 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/data/4ae7c654b/e5992f7ee2ec4bda83e8ec783c37e295 [2024-11-25 05:15:29,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:15:29,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:15:29,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:15:29,843 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:15:29,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:15:29,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:29" (1/1) ... [2024-11-25 05:15:29,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ea6862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:29, skipping insertion in model container [2024-11-25 05:15:29,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:29" (1/1) ... [2024-11-25 05:15:29,869 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:15:30,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:15:30,044 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:15:30,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:15:30,071 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:15:30,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30 WrapperNode [2024-11-25 05:15:30,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:15:30,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:15:30,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:15:30,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:15:30,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,114 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-11-25 05:15:30,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:15:30,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:15:30,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:15:30,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:15:30,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,128 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,128 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,135 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:15:30,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:15:30,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:15:30,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:15:30,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:15:30,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:15:30,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:15:30,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:15:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:15:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2024-11-25 05:15:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2024-11-25 05:15:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:15:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:15:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 05:15:30,302 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:15:30,304 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:15:30,486 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-25 05:15:30,486 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:15:30,518 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:15:30,518 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 05:15:30,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:30 BoogieIcfgContainer [2024-11-25 05:15:30,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:15:30,520 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:15:30,520 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:15:30,534 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:15:30,534 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:30" (1/1) ... [2024-11-25 05:15:30,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:15:30,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:15:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2024-11-25 05:15:30,602 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-11-25 05:15:30,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 05:15:30,607 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:15:30,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:15:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:15:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:15:30,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:15:30,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 30 transitions. [2024-11-25 05:15:30,844 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-11-25 05:15:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 05:15:30,844 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:15:30,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:15:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:15:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:15:30,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:15:30,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2024-11-25 05:15:30,919 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-11-25 05:15:30,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 05:15:30,920 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:15:30,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:15:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:15:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:15:31,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:15:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 39 transitions. [2024-11-25 05:15:31,325 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2024-11-25 05:15:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 05:15:31,326 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:15:31,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:15:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:15:31,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:15:32,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:15:32,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 35 states and 50 transitions. [2024-11-25 05:15:32,275 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2024-11-25 05:15:32,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-25 05:15:32,278 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:15:32,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:15:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:15:32,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:15:33,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:15:33,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 40 states and 60 transitions. [2024-11-25 05:15:33,029 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 60 transitions. [2024-11-25 05:15:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-25 05:15:33,030 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:15:33,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:15:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:15:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:15:33,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:15:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 41 states and 62 transitions. [2024-11-25 05:15:33,510 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 62 transitions. [2024-11-25 05:15:33,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-25 05:15:33,514 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:15:33,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:15:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:15:33,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:15:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:15:34,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 46 states and 71 transitions. [2024-11-25 05:15:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 71 transitions. [2024-11-25 05:15:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-25 05:15:34,227 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:15:34,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:15:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:15:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:15:34,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:15:34,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 27 transitions. [2024-11-25 05:15:34,667 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-11-25 05:15:34,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 05:15:34,668 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-11-25 05:15:34,684 INFO L726 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2024-11-25 05:15:34,753 INFO L77 FloydHoareUtils]: At program point gcdFINAL(lines 17 28) the Hoare annotation is: true [2024-11-25 05:15:34,754 INFO L77 FloydHoareUtils]: At program point L27(line 27) the Hoare annotation is: (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y1 gcd_~y2) (<= gcd_~y1 2147483647)) [2024-11-25 05:15:34,754 INFO L77 FloydHoareUtils]: At program point gcdEXIT(lines 17 28) the Hoare annotation is: true [2024-11-25 05:15:34,754 INFO L77 FloydHoareUtils]: At program point L27-1(line 27) the Hoare annotation is: (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y1 2147483647)) [2024-11-25 05:15:34,754 INFO L77 FloydHoareUtils]: At program point L25(line 25) the Hoare annotation is: (and (< gcd_~y2 gcd_~y1) (<= gcd_~y2 2147483646) (<= gcd_~y1 (+ gcd_~y2 2147483646))) [2024-11-25 05:15:34,754 INFO L75 FloydHoareUtils]: For program point gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2024-11-25 05:15:34,755 INFO L77 FloydHoareUtils]: At program point L27-2(line 27) the Hoare annotation is: (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y1 2147483647)) [2024-11-25 05:15:34,755 INFO L77 FloydHoareUtils]: At program point L24(lines 24 26) the Hoare annotation is: (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y1 (+ gcd_~y2 2147483646)) (<= gcd_~y2 2147483647) (<= gcd_~y1 2147483647)) [2024-11-25 05:15:34,755 INFO L77 FloydHoareUtils]: At program point L25-1(line 25) the Hoare annotation is: (and (<= gcd_~y2 2147483646) (<= gcd_~y1 (+ gcd_~y2 2147483646))) [2024-11-25 05:15:34,755 INFO L77 FloydHoareUtils]: At program point L27-3(line 27) the Hoare annotation is: true [2024-11-25 05:15:34,755 INFO L77 FloydHoareUtils]: At program point L25-2(line 25) the Hoare annotation is: (and (<= gcd_~y2 2147483646) (<= gcd_~y1 (+ gcd_~y2 2147483646))) [2024-11-25 05:15:34,755 INFO L77 FloydHoareUtils]: At program point L25-3(line 25) the Hoare annotation is: true [2024-11-25 05:15:34,755 INFO L77 FloydHoareUtils]: At program point L21(lines 21 23) the Hoare annotation is: (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y1 (+ gcd_~y2 2147483646)) (<= gcd_~y2 2147483647) (<= gcd_~y1 2147483647)) [2024-11-25 05:15:34,755 INFO L75 FloydHoareUtils]: For program point gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2024-11-25 05:15:34,755 INFO L75 FloydHoareUtils]: For program point gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2024-11-25 05:15:34,756 INFO L77 FloydHoareUtils]: At program point L18(lines 18 20) the Hoare annotation is: (and (<= gcd_~y2 2147483647) (<= gcd_~y1 2147483647)) [2024-11-25 05:15:34,756 INFO L75 FloydHoareUtils]: For program point gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2024-11-25 05:15:34,756 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 17 28) the Hoare annotation is: (and (<= |gcd_#in~y1| 2147483647) (<= |gcd_#in~y2| 2147483647)) [2024-11-25 05:15:34,756 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 05:15:34,756 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 05:15:34,756 INFO L77 FloydHoareUtils]: At program point L40-1(lines 30 45) the Hoare annotation is: true [2024-11-25 05:15:34,756 INFO L77 FloydHoareUtils]: At program point L36(lines 36 38) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647)) [2024-11-25 05:15:34,756 INFO L77 FloydHoareUtils]: At program point L32(lines 32 34) the Hoare annotation is: (<= |ULTIMATE.start_main_~m~0#1| 2147483647) [2024-11-25 05:15:34,756 INFO L77 FloydHoareUtils]: At program point L39(line 39) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647)) [2024-11-25 05:15:34,756 INFO L77 FloydHoareUtils]: At program point L39-1(line 39) the Hoare annotation is: true [2024-11-25 05:15:34,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 05:15:34 ImpRootNode [2024-11-25 05:15:34,787 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 05:15:34,787 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 05:15:34,787 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 05:15:34,788 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 05:15:34,790 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:30" (3/4) ... [2024-11-25 05:15:34,792 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 05:15:34,795 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd [2024-11-25 05:15:34,799 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-25 05:15:34,799 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-25 05:15:34,799 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-25 05:15:34,799 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 05:15:34,889 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 05:15:34,891 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 05:15:34,891 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 05:15:34,892 INFO L158 Benchmark]: Toolchain (without parser) took 5051.74ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 45.5MB in the end (delta: 47.5MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2024-11-25 05:15:34,892 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:15:34,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.32ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.6MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 05:15:34,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.51ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.5MB in the end (delta: 854.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:15:34,897 INFO L158 Benchmark]: Boogie Preprocessor took 33.60ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.7MB in the end (delta: 560.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:15:34,897 INFO L158 Benchmark]: RCFGBuilder took 369.08ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 68.7MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 05:15:34,898 INFO L158 Benchmark]: CodeCheck took 4267.03ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 49.4MB in the end (delta: 19.3MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-11-25 05:15:34,898 INFO L158 Benchmark]: Witness Printer took 103.64ms. Allocated memory is still 117.4MB. Free memory was 49.4MB in the beginning and 45.5MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:15:34,902 INFO L338 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, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 359 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 174 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 768 IncrementalHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 145 mSolverCounterUnsat, 174 mSDtfsCounter, 768 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 915 GetRequests, 788 SyntacticMatches, 51 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1893 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 12/20 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - ProcedureContractResult [Line: 17]: Procedure Contract for gcd Derived contract for procedure gcd. Requires: ((y1 <= 2147483647) && (y2 <= 2147483647)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.32ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.6MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.51ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.5MB in the end (delta: 854.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.60ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.7MB in the end (delta: 560.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 369.08ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 68.7MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 4267.03ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 49.4MB in the end (delta: 19.3MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Witness Printer took 103.64ms. Allocated memory is still 117.4MB. Free memory was 49.4MB in the beginning and 45.5MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-25 05:15:34,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f7f35-8e2c-479c-8792-b4e956085ee7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE