./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/gcd_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 739715c3f9b6cd78741b6d155210624f17d4bf167a3be4c6127f06707080edde --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:46:46,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:46:46,604 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:46:46,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:46:46,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:46:46,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:46:46,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:46:46,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:46:46,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:46:46,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:46:46,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:46:46,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:46:46,643 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:46:46,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:46:46,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:46:46,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:46:46,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:46:46,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:46:46,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:46:46,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:46:46,645 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:46:46,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:46:46,645 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:46:46,645 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:46:46,645 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:46:46,645 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:46:46,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:46:46,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:46:46,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:46:46,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:46:46,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:46:46,646 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:46:46,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:46:46,647 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_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm 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 ! call(reach_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 -> 739715c3f9b6cd78741b6d155210624f17d4bf167a3be4c6127f06707080edde [2024-11-13 20:46:47,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:46:47,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:46:47,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:46:47,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:46:47,020 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:46:47,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/bitvector/gcd_1.c Unable to find full path for "g++" [2024-11-13 20:46:49,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:46:49,349 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:46:49,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/sv-benchmarks/c/bitvector/gcd_1.c [2024-11-13 20:46:49,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/data/153339768/cb6d2659325347f3a739cf596a45733a/FLAGd780c64a4 [2024-11-13 20:46:49,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/data/153339768/cb6d2659325347f3a739cf596a45733a [2024-11-13 20:46:49,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:46:49,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:46:49,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:46:49,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:46:49,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:46:49,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214087ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49, skipping insertion in model container [2024-11-13 20:46:49,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:46:49,869 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/sv-benchmarks/c/bitvector/gcd_1.c[664,677] [2024-11-13 20:46:49,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:46:49,908 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:46:49,920 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/sv-benchmarks/c/bitvector/gcd_1.c[664,677] [2024-11-13 20:46:49,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:46:49,940 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:46:49,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49 WrapperNode [2024-11-13 20:46:49,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:46:49,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:46:49,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:46:49,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:46:49,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,970 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-11-13 20:46:49,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:46:49,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:46:49,972 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:46:49,972 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:46:49,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,988 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:49,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:46:49,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:46:49,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:46:49,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:46:49,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:46:49" (1/1) ... [2024-11-13 20:46:50,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:46:50,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:46:50,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:46:50,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:46:50,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:46:50,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:46:50,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:46:50,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:46:50,146 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:46:50,148 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:46:50,345 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-13 20:46:50,345 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:46:50,443 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:46:50,443 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 20:46:50,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:46:50 BoogieIcfgContainer [2024-11-13 20:46:50,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:46:50,444 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:46:50,445 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:46:50,456 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:46:50,456 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:46:50" (1/1) ... [2024-11-13 20:46:50,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:46:50,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:46:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-11-13 20:46:50,527 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-11-13 20:46:50,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 20:46:50,529 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:46:50,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:46:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:46:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:46:50,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:46:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2024-11-13 20:46:50,968 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2024-11-13 20:46:50,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 20:46:50,969 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:46:50,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:46:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:46:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:46:51,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:46:51,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2024-11-13 20:46:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2024-11-13 20:46:51,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 20:46:51,499 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:46:51,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:46:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 20:46:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:46:57,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 20:46:57,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:47:05,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:47:17,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.20s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 20:47:17,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:47:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-11-13 20:47:17,990 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-11-13 20:47:17,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 20:47:17,991 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2024-11-13 20:47:17,998 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-13 20:47:19,042 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 20:47:19,042 INFO L77 FloydHoareUtils]: At program point L27-1(lines 27 31) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~y~0#1| 127))) (or (and .cse0 (= |ULTIMATE.start_gcd_test_~b#1| |ULTIMATE.start_main_~y~0#1|) .cse1 (or (and (<= 0 |ULTIMATE.start_gcd_test_~a#1|) (= (mod |ULTIMATE.start_gcd_test_~a#1| |ULTIMATE.start_main_~y~0#1|) 0)) (and (<= 0 (+ |ULTIMATE.start_gcd_test_~a#1| 128)) (exists ((v_y_3 Int)) (let ((.cse2 (* |ULTIMATE.start_gcd_test_~a#1| 255)) (.cse3 (* 256 v_y_3))) (and (<= 0 (+ 65408 .cse2 .cse3)) (<= (+ 65281 .cse2 .cse3) 0) (= (mod (+ 65280 .cse2 .cse3) |ULTIMATE.start_main_~y~0#1|) 0)))) (<= (+ |ULTIMATE.start_gcd_test_~a#1| 1) 0)))) (and (= |ULTIMATE.start_gcd_test_~b#1| 0) .cse0 .cse1 (= |ULTIMATE.start_gcd_test_~a#1| |ULTIMATE.start_main_~y~0#1|)))) [2024-11-13 20:47:19,042 INFO L77 FloydHoareUtils]: At program point L15(lines 15 17) the Hoare annotation is: (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) [2024-11-13 20:47:19,042 INFO L77 FloydHoareUtils]: At program point L15-2(lines 14 19) the Hoare annotation is: true [2024-11-13 20:47:19,042 INFO L77 FloydHoareUtils]: At program point L42(lines 42 46) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~y~0#1| 127) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 128))) [2024-11-13 20:47:19,043 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 20:47:19,043 INFO L77 FloydHoareUtils]: At program point L42-2(lines 42 46) the Hoare annotation is: true [2024-11-13 20:47:19,043 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2024-11-13 20:47:19,046 INFO L75 FloydHoareUtils]: For program point L16(line 16) no Hoare annotation was computed. [2024-11-13 20:47:19,053 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-13 20:47:19,055 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-13 20:47:19,055 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-13 20:47:19,055 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-13 20:47:19,056 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 20:47:19,056 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-13 20:47:19,056 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-13 20:47:19,056 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-13 20:47:19,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:47:19 ImpRootNode [2024-11-13 20:47:19,058 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:47:19,059 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:47:19,059 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:47:19,059 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:47:19,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:46:50" (3/4) ... [2024-11-13 20:47:19,062 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 20:47:19,067 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-13 20:47:19,068 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-13 20:47:19,068 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 20:47:19,068 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 20:47:19,068 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 20:47:19,133 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:47:19,133 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 20:47:19,133 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:47:19,134 INFO L158 Benchmark]: Toolchain (without parser) took 29473.12ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 39.1MB in the end (delta: 53.4MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2024-11-13 20:47:19,135 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:47:19,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.04ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:47:19,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.08ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:47:19,136 INFO L158 Benchmark]: Boogie Preprocessor took 19.34ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.5MB in the end (delta: 588.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:47:19,136 INFO L158 Benchmark]: RCFGBuilder took 452.26ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 65.9MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:47:19,137 INFO L158 Benchmark]: CodeCheck took 28613.89ms. Allocated memory is still 117.4MB. Free memory was 65.9MB in the beginning and 43.8MB in the end (delta: 22.2MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-11-13 20:47:19,137 INFO L158 Benchmark]: Witness Printer took 74.31ms. Allocated memory is still 117.4MB. Free memory was 43.8MB in the beginning and 39.1MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:47:19,139 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 12 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 5.8s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 1 QuantifiedInterpolants, 113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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 - PositiveResult [Line: 16]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((0 <= a) || ((0 <= (a + 128)) && ((a + 1) <= 0))) || (b == 0)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.04ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.08ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.34ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.5MB in the end (delta: 588.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 452.26ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 65.9MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 28613.89ms. Allocated memory is still 117.4MB. Free memory was 65.9MB in the beginning and 43.8MB in the end (delta: 22.2MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Witness Printer took 74.31ms. Allocated memory is still 117.4MB. Free memory was 43.8MB in the beginning and 39.1MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 RESULT: Ultimate proved your program to be correct! [2024-11-13 20:47:19,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b11797-07c1-4521-850e-e2db6754c0d5/bin/ukojak-verify-EEHR8qb7sm/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