./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_2_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/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_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b --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 71c49c4d50bf5964bc64c132ffffad0ac21b09eceea3ddcffdb7bfa5d4628635 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:04:29,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:04:29,849 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 23:04:29,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:04:29,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:04:29,872 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:04:29,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:04:29,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:04:29,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:04:29,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:04:29,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:04:29,873 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:04:29,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:04:29,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:04:29,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:04:29,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:04:29,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:04:29,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:04:29,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:04:29,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:04:29,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:04:29,874 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:04:29,874 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:04:29,875 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:04:29,875 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:04:29,875 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:04:29,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:04:29,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:04:29,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:04:29,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:04:29,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:04:29,876 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:04:29,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:04:29,876 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_1cc02502-e472-4eaa-b506-a0c96699d084/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 ! 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 -> 71c49c4d50bf5964bc64c132ffffad0ac21b09eceea3ddcffdb7bfa5d4628635 [2024-12-05 23:04:30,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:04:30,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:04:30,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:04:30,091 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:04:30,092 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:04:30,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/combinations/gcd_4+newton_2_2.i [2024-12-05 23:04:32,704 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/data/1ec111e9b/b95480543873438b83876b1689193c15/FLAG5984f7db8 [2024-12-05 23:04:32,918 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:04:32,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/sv-benchmarks/c/combinations/gcd_4+newton_2_2.i [2024-12-05 23:04:32,925 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/data/1ec111e9b/b95480543873438b83876b1689193c15/FLAG5984f7db8 [2024-12-05 23:04:33,291 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/data/1ec111e9b/b95480543873438b83876b1689193c15 [2024-12-05 23:04:33,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:04:33,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:04:33,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:04:33,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:04:33,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:04:33,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9c153c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33, skipping insertion in model container [2024-12-05 23:04:33,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:04:33,435 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_1cc02502-e472-4eaa-b506-a0c96699d084/sv-benchmarks/c/combinations/gcd_4+newton_2_2.i[1224,1237] [2024-12-05 23:04:33,459 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_1cc02502-e472-4eaa-b506-a0c96699d084/sv-benchmarks/c/combinations/gcd_4+newton_2_2.i[2827,2840] [2024-12-05 23:04:33,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:04:33,469 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:04:33,479 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_1cc02502-e472-4eaa-b506-a0c96699d084/sv-benchmarks/c/combinations/gcd_4+newton_2_2.i[1224,1237] [2024-12-05 23:04:33,489 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_1cc02502-e472-4eaa-b506-a0c96699d084/sv-benchmarks/c/combinations/gcd_4+newton_2_2.i[2827,2840] [2024-12-05 23:04:33,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:04:33,503 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:04:33,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33 WrapperNode [2024-12-05 23:04:33,503 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:04:33,504 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:04:33,504 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:04:33,504 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:04:33,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,532 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 78 [2024-12-05 23:04:33,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:04:33,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:04:33,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:04:33,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:04:33,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,546 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:04:33,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:04:33,554 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:04:33,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:04:33,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:04:33,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:04:33,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:04:33,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:04:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:04:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-05 23:04:33,609 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-05 23:04:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-05 23:04:33,609 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-05 23:04:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:04:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:04:33,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:04:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 23:04:33,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 23:04:33,662 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:04:33,664 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:04:33,807 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-05 23:04:33,807 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:04:33,853 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:04:33,854 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:04:33,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:04:33 BoogieIcfgContainer [2024-12-05 23:04:33,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:04:33,855 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:04:33,855 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:04:33,864 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:04:33,864 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:04:33" (1/1) ... [2024-12-05 23:04:33,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:04:33,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:33,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 39 transitions. [2024-12-05 23:04:33,917 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2024-12-05 23:04:33,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:04:33,921 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:33,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:04:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:04:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2024-12-05 23:04:34,168 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-12-05 23:04:34,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 23:04:34,169 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:34,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:04:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:04:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2024-12-05 23:04:34,345 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-12-05 23:04:34,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 23:04:34,346 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:34,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:04:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:04:34,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-12-05 23:04:34,640 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-12-05 23:04:34,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:04:34,641 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:34,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:04:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:04:35,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 35 states and 49 transitions. [2024-12-05 23:04:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2024-12-05 23:04:35,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 23:04:35,014 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:35,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:04:35,215 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:04:35,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:35,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 38 states and 58 transitions. [2024-12-05 23:04:35,625 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2024-12-05 23:04:35,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:04:35,625 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:35,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:04:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:04:36,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:36,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 43 states and 77 transitions. [2024-12-05 23:04:36,558 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 77 transitions. [2024-12-05 23:04:36,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:04:36,558 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:36,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:04:36,700 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:04:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:36,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 44 states and 79 transitions. [2024-12-05 23:04:36,879 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2024-12-05 23:04:36,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:04:36,879 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:36,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:04:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:04:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:37,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 45 states and 81 transitions. [2024-12-05 23:04:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 81 transitions. [2024-12-05 23:04:37,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:04:37,162 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:37,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:04:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:04:37,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-05 23:04:37,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:04:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:04:38,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:38,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 54 states and 100 transitions. [2024-12-05 23:04:38,607 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2024-12-05 23:04:38,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:04:38,608 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:38,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:04:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:04:38,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-05 23:04:38,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:04:38,844 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:04:39,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:04:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 38 states and 45 transitions. [2024-12-05 23:04:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2024-12-05 23:04:39,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-05 23:04:39,309 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:04:39,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:04:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:04:39,316 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:04:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:04:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:04:39,353 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:04:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:04:39,376 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2024-12-05 23:04:39,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:04:39 ImpRootNode [2024-12-05 23:04:39,400 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:04:39,400 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:04:39,400 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:04:39,400 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:04:39,401 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:04:33" (3/4) ... [2024-12-05 23:04:39,403 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:04:39,404 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:04:39,405 INFO L158 Benchmark]: Toolchain (without parser) took 6111.35ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 116.3MB in the beginning and 160.2MB in the end (delta: -43.9MB). Peak memory consumption was 122.0MB. Max. memory is 16.1GB. [2024-12-05 23:04:39,405 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:04:39,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.37ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 104.2MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:04:39,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.94ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 102.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:04:39,406 INFO L158 Benchmark]: Boogie Preprocessor took 20.26ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 101.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:04:39,406 INFO L158 Benchmark]: RCFGBuilder took 300.51ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 84.8MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:04:39,407 INFO L158 Benchmark]: CodeCheck took 5545.09ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 84.8MB in the beginning and 160.2MB in the end (delta: -75.4MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. [2024-12-05 23:04:39,407 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 310.4MB. Free memory was 160.2MB in the beginning and 160.2MB in the end (delta: 17.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:04:39,409 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 4 procedures, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 310 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 485 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1391 IncrementalHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 485 mSolverCounterUnsat, 98 mSDtfsCounter, 1391 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1301 GetRequests, 1165 SyntacticMatches, 22 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6297 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 579 SizeOfPredicates, 4 NumberOfNonLiveVariables, 148 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 0/70 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 - UnprovableResult [Line: 109]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 102, overapproximation of someBinaryArithmeticFLOAToperation at line 100, overapproximation of someBinaryArithmeticFLOAToperation at line 92, overapproximation of someBinaryArithmeticFLOAToperation at line 87. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L100] CALL, EXPR f(IN) VAL [\old(x)=2] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L100] RET, EXPR f(IN) VAL [IN=2] [L100] CALL, EXPR fp(IN) VAL [\old(x)=2] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L100] RET, EXPR fp(IN) VAL [IN=2] [L100] float x = IN - f(IN)/fp(IN); [L102] CALL, EXPR f(x) VAL [\old(x)=3] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L102] RET, EXPR f(x) VAL [IN=2, x=3] [L102] CALL, EXPR fp(x) VAL [\old(x)=3] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L102] RET, EXPR fp(x) VAL [IN=2, x=3] [L102] x = x - f(x)/fp(x) [L108] COND TRUE !(x < 0.1) VAL [IN=2] [L109] reach_error() VAL [IN=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.37ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 104.2MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.94ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 102.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.26ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 101.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 300.51ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 84.8MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 5545.09ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 84.8MB in the beginning and 160.2MB in the end (delta: -75.4MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 310.4MB. Free memory was 160.2MB in the beginning and 160.2MB in the end (delta: 17.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 23:04:39,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/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_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b --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 71c49c4d50bf5964bc64c132ffffad0ac21b09eceea3ddcffdb7bfa5d4628635 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:04:41,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:04:41,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-12-05 23:04:41,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:04:41,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:04:41,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:04:41,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:04:41,485 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:04:41,486 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:04:41,486 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:04:41,486 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:04:41,486 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:04:41,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:04:41,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:04:41,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:04:41,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:04:41,486 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:04:41,487 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:04:41,487 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:04:41,487 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:04:41,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:04:41,487 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:04:41,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:04:41,487 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:04:41,487 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:04:41,487 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:04:41,487 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:04:41,488 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:04:41,488 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:04:41,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:04:41,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:04:41,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:04:41,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:04:41,488 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:04:41,488 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:04:41,488 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:04:41,488 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_1cc02502-e472-4eaa-b506-a0c96699d084/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 ! 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 -> 71c49c4d50bf5964bc64c132ffffad0ac21b09eceea3ddcffdb7bfa5d4628635 [2024-12-05 23:04:41,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:04:41,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:04:41,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:04:41,747 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:04:41,747 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:04:41,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/combinations/gcd_4+newton_2_2.i [2024-12-05 23:04:44,420 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/data/782c2e84f/561c008327824299bba3066662cfea98/FLAGf269fbde7 [2024-12-05 23:04:44,595 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:04:44,596 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/sv-benchmarks/c/combinations/gcd_4+newton_2_2.i [2024-12-05 23:04:44,604 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/data/782c2e84f/561c008327824299bba3066662cfea98/FLAGf269fbde7 [2024-12-05 23:04:44,619 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/data/782c2e84f/561c008327824299bba3066662cfea98 [2024-12-05 23:04:44,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:04:44,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:04:44,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:04:44,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:04:44,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:04:44,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef45dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44, skipping insertion in model container [2024-12-05 23:04:44,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:04:44,774 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_1cc02502-e472-4eaa-b506-a0c96699d084/sv-benchmarks/c/combinations/gcd_4+newton_2_2.i[1224,1237] [2024-12-05 23:04:44,797 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_1cc02502-e472-4eaa-b506-a0c96699d084/sv-benchmarks/c/combinations/gcd_4+newton_2_2.i[2827,2840] [2024-12-05 23:04:44,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:04:44,810 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:04:44,821 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_1cc02502-e472-4eaa-b506-a0c96699d084/sv-benchmarks/c/combinations/gcd_4+newton_2_2.i[1224,1237] [2024-12-05 23:04:44,830 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_1cc02502-e472-4eaa-b506-a0c96699d084/sv-benchmarks/c/combinations/gcd_4+newton_2_2.i[2827,2840] [2024-12-05 23:04:44,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:04:44,845 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:04:44,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44 WrapperNode [2024-12-05 23:04:44,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:04:44,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:04:44,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:04:44,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:04:44,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,876 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 75 [2024-12-05 23:04:44,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:04:44,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:04:44,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:04:44,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:04:44,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,893 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:04:44,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:04:44,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:04:44,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:04:44,904 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:04:44" (1/1) ... [2024-12-05 23:04:44,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:04:44,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:04:44,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:04:44,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:04:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:04:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:04:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-05 23:04:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-05 23:04:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-05 23:04:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-05 23:04:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:04:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:04:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 23:04:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 23:04:45,018 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:04:45,020 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:05:07,635 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-05 23:05:07,635 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:05:07,684 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:05:07,684 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:05:07,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:05:07 BoogieIcfgContainer [2024-12-05 23:05:07,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:05:07,685 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:05:07,685 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:05:07,692 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:05:07,692 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:05:07" (1/1) ... [2024-12-05 23:05:07,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:05:07,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 39 transitions. [2024-12-05 23:05:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2024-12-05 23:05:07,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:05:07,732 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:07,732 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:05:07,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:05:07,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:05:07,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:05:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:07,868 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:05:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:07,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 23:05:07,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:05:07,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:05:07,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-12-05 23:05:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:08,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2024-12-05 23:05:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-12-05 23:05:08,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 23:05:08,128 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:08,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:05:08,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:05:08,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:05:08,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 23:05:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:08,256 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:05:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:08,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 23:05:08,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:05:08,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:05:08,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-05 23:05:08,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:08,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2024-12-05 23:05:08,881 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-12-05 23:05:08,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 23:05:08,882 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:08,882 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:05:08,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:05:08,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:05:08,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-05 23:05:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:09,004 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:05:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:09,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-05 23:05:09,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:05:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:05:09,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-05 23:05:09,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 43 transitions. [2024-12-05 23:05:09,467 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-12-05 23:05:09,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:05:09,468 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:09,468 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:05:09,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:05:09,470 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:05:09,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-05 23:05:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:09,595 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:05:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:09,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 23:05:09,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:05:09,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:05:09,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-05 23:05:10,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-12-05 23:05:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-12-05 23:05:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 23:05:10,406 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:10,406 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:05:10,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:05:10,408 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:05:10,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-05 23:05:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:10,530 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:05:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:10,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 23:05:10,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:05:10,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:05:10,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-05 23:05:11,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:11,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 35 states and 47 transitions. [2024-12-05 23:05:11,459 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2024-12-05 23:05:11,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:05:11,459 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:11,459 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:05:11,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:05:11,461 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:05:11,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-05 23:05:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:11,588 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:05:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:11,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-05 23:05:11,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:05:12,062 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:05:12,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-05 23:05:13,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:13,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2024-12-05 23:05:13,379 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2024-12-05 23:05:13,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:05:13,379 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:13,379 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:05:13,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:05:13,381 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:05:13,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-05 23:05:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:13,517 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:05:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:05:13,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-05 23:05:13,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:05:16,232 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:05:16,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-05 23:05:23,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:05:23,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 38 states and 45 transitions. [2024-12-05 23:05:23,084 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2024-12-05 23:05:23,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-05 23:05:23,086 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:05:23,086 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:05:23,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:05:23,088 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:05:23,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc02502-e472-4eaa-b506-a0c96699d084/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process