./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_3.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_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b --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 17434adceb46f4d2d18d3a85d6d4ed55515fdf3dbd1a573601edbae0be0a7746 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:50:41,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:50:41,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-12-06 02:50:41,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:50:41,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:50:41,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:50:41,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:50:41,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:50:41,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:50:41,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:50:41,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:50:41,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:50:41,421 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 02:50:41,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:50:41,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 02:50:41,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:50:41,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:50:41,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:50:41,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:50:41,421 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 02:50:41,421 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 02:50:41,422 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 02:50:41,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:50:41,422 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:50:41,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:50:41,422 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:50:41,422 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:50:41,422 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:50:41,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:50:41,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:50:41,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:50:41,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:50:41,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:50:41,423 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:50:41,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:50:41,423 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_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b 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 -> 17434adceb46f4d2d18d3a85d6d4ed55515fdf3dbd1a573601edbae0be0a7746 [2024-12-06 02:50:41,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:50:41,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:50:41,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:50:41,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:50:41,674 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:50:41,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/bitvector/gcd_3.c [2024-12-06 02:50:44,369 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/data/ae0d07e6d/4272f51328b049e897b73ddf281807bf/FLAG0c81b5f48 [2024-12-06 02:50:44,555 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:50:44,556 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/sv-benchmarks/c/bitvector/gcd_3.c [2024-12-06 02:50:44,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/data/ae0d07e6d/4272f51328b049e897b73ddf281807bf/FLAG0c81b5f48 [2024-12-06 02:50:44,576 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/data/ae0d07e6d/4272f51328b049e897b73ddf281807bf [2024-12-06 02:50:44,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:50:44,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:50:44,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:50:44,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:50:44,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:50:44,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5154b311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44, skipping insertion in model container [2024-12-06 02:50:44,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:50:44,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:50:44,753 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:50:44,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:50:44,781 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:50:44,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44 WrapperNode [2024-12-06 02:50:44,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:50:44,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:50:44,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:50:44,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:50:44,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,812 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-12-06 02:50:44,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:50:44,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:50:44,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:50:44,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:50:44,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,824 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:50:44,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:50:44,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:50:44,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:50:44,833 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:44" (1/1) ... [2024-12-06 02:50:44,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:50:44,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:50:44,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:50:44,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:50:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:50:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:50:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:50:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:50:44,946 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:50:44,948 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:50:45,076 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-12-06 02:50:45,076 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:50:45,125 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:50:45,125 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 02:50:45,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:50:45 BoogieIcfgContainer [2024-12-06 02:50:45,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:50:45,126 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:50:45,126 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:50:45,136 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:50:45,136 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:50:45" (1/1) ... [2024-12-06 02:50:45,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:50:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:45,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2024-12-06 02:50:45,187 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2024-12-06 02:50:45,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 02:50:45,189 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:45,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:45,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:45,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:45,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-12-06 02:50:45,369 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-12-06 02:50:45,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 02:50:45,370 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:45,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:45,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:45,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:45,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2024-12-06 02:50:45,495 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2024-12-06 02:50:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 02:50:45,495 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:45,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2024-12-06 02:50:45,631 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2024-12-06 02:50:45,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 02:50:45,631 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:45,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-12-06 02:50:45,845 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-12-06 02:50:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 02:50:45,846 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:45,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:45,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:46,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:46,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2024-12-06 02:50:46,015 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2024-12-06 02:50:46,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 02:50:46,016 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-12-06 02:50:46,024 INFO L726 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2024-12-06 02:50:46,060 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2024-12-06 02:50:46,060 INFO L77 FloydHoareUtils]: At program point L27-2(lines 27 31) the Hoare annotation is: true [2024-12-06 02:50:46,060 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2024-12-06 02:50:46,061 INFO L77 FloydHoareUtils]: At program point L24(line 24) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_gcd_test_~b#1| 128)) (<= |ULTIMATE.start_gcd_test_~b#1| 127) (<= 0 (+ |ULTIMATE.start_gcd_test_~a#1| 128))) [2024-12-06 02:50:46,061 INFO L77 FloydHoareUtils]: At program point L24-1(line 24) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_gcd_test_~b#1| 128)) (<= 0 (+ |ULTIMATE.start_gcd_test_~a#1| 128)) (<= (+ |ULTIMATE.start_gcd_test_~a#1| 1) 0)) [2024-12-06 02:50:46,061 INFO L77 FloydHoareUtils]: At program point L24-2(line 24) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_gcd_test_~b#1| 128)) (<= 0 (+ |ULTIMATE.start_gcd_test_~a#1| 128))) [2024-12-06 02:50:46,061 INFO L77 FloydHoareUtils]: At program point L24-4(lines 21 33) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_gcd_test_~b#1| 128)) [2024-12-06 02:50:46,061 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2024-12-06 02:50:46,061 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 02:50:46,062 INFO L77 FloydHoareUtils]: At program point L25(line 25) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_gcd_test_~b#1| 128)) (<= |ULTIMATE.start_gcd_test_~b#1| 127)) [2024-12-06 02:50:46,062 INFO L77 FloydHoareUtils]: At program point L25-1(line 25) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_gcd_test_~b#1| 128)) [2024-12-06 02:50:46,062 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 02:50:46,062 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2024-12-06 02:50:46,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:50:46 ImpRootNode [2024-12-06 02:50:46,070 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:50:46,070 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:50:46,071 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:50:46,071 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:50:46,071 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:50:45" (3/4) ... [2024-12-06 02:50:46,073 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 02:50:46,080 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-12-06 02:50:46,080 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-12-06 02:50:46,080 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-06 02:50:46,080 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-06 02:50:46,080 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 02:50:46,134 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 02:50:46,134 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 02:50:46,134 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:50:46,135 INFO L158 Benchmark]: Toolchain (without parser) took 1556.27ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 92.0MB in the end (delta: 26.8MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-12-06 02:50:46,135 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:50:46,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.81ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 107.7MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:50:46,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.74ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 106.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:50:46,136 INFO L158 Benchmark]: Boogie Preprocessor took 18.34ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.7MB in the end (delta: 740.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:50:46,137 INFO L158 Benchmark]: RCFGBuilder took 293.91ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 91.1MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 02:50:46,137 INFO L158 Benchmark]: CodeCheck took 943.57ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 96.8MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:50:46,137 INFO L158 Benchmark]: Witness Printer took 63.98ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 92.0MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:50:46,139 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 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 10 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 145 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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: 25]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.81ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 107.7MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.74ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 106.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.34ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.7MB in the end (delta: 740.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 293.91ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 91.1MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 943.57ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 96.8MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 63.98ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 92.0MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 02:50:46,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79163944-3dcd-4311-99f5-7362d3e99b4c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE