./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_2_4.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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_2_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/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 c4ab638d88884b11d280586d03327428928a19b8179f4a6f29c31c8f46b59f77 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:22:38,707 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:22:38,759 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:22:38,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:22:38,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:22:38,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:22:38,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:22:38,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:22:38,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:22:38,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:22:38,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:22:38,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:22:38,783 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:22:38,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:22:38,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:22:38,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:22:38,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:22:38,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:22:38,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:22:38,784 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:22:38,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:22:38,784 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:22:38,784 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:22:38,784 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:22:38,784 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:22:38,784 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:22:38,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:22:38,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:22:38,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:22:38,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:22:38,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:22:38,785 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:22:38,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:22:38,785 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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/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 -> c4ab638d88884b11d280586d03327428928a19b8179f4a6f29c31c8f46b59f77 [2024-12-06 03:22:38,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:22:38,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:22:39,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:22:39,002 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:22:39,002 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:22:39,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/combinations/gcd_1+newton_2_4.i [2024-12-06 03:22:41,680 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/data/9bebd5d7f/08f0e22ab64b4cdc884308ce1ea59ce9/FLAG56b28bdf8 [2024-12-06 03:22:41,854 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:22:41,855 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/sv-benchmarks/c/combinations/gcd_1+newton_2_4.i [2024-12-06 03:22:41,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/data/9bebd5d7f/08f0e22ab64b4cdc884308ce1ea59ce9/FLAG56b28bdf8 [2024-12-06 03:22:41,876 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/data/9bebd5d7f/08f0e22ab64b4cdc884308ce1ea59ce9 [2024-12-06 03:22:41,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:22:41,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:22:41,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:22:41,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:22:41,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:22:41,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:22:41" (1/1) ... [2024-12-06 03:22:41,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53bf41a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:41, skipping insertion in model container [2024-12-06 03:22:41,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:22:41" (1/1) ... [2024-12-06 03:22:41,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:22:42,011 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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/sv-benchmarks/c/combinations/gcd_1+newton_2_4.i[1226,1239] [2024-12-06 03:22:42,035 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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/sv-benchmarks/c/combinations/gcd_1+newton_2_4.i[2807,2820] [2024-12-06 03:22:42,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:22:42,045 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:22:42,053 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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/sv-benchmarks/c/combinations/gcd_1+newton_2_4.i[1226,1239] [2024-12-06 03:22:42,063 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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/sv-benchmarks/c/combinations/gcd_1+newton_2_4.i[2807,2820] [2024-12-06 03:22:42,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:22:42,075 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:22:42,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42 WrapperNode [2024-12-06 03:22:42,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:22:42,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:22:42,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:22:42,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:22:42,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,103 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2024-12-06 03:22:42,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:22:42,104 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:22:42,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:22:42,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:22:42,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,116 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:22:42,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:22:42,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:22:42,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:22:42,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:22:42,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:22:42,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:22:42,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:22:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:22:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-06 03:22:42,173 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-06 03:22:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-06 03:22:42,173 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-06 03:22:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:22:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:22:42,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:22:42,223 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:22:42,224 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:22:42,388 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-12-06 03:22:42,388 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:22:42,440 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:22:42,440 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 03:22:42,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:22:42 BoogieIcfgContainer [2024-12-06 03:22:42,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:22:42,441 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:22:42,442 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:22:42,451 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:22:42,451 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:22:42" (1/1) ... [2024-12-06 03:22:42,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:22:42,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:22:42,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2024-12-06 03:22:42,509 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-12-06 03:22:42,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 03:22:42,513 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:22:42,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:22:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:22:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:22:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:22:42,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2024-12-06 03:22:42,802 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-12-06 03:22:42,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:22:42,802 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:22:42,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:22:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:22:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:22:43,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:22:43,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2024-12-06 03:22:43,228 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2024-12-06 03:22:43,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:22:43,229 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:22:43,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:22:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:22:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:22:50,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-06 03:22:50,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:22:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:23:04,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.70s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 03:23:04,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:23:04,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2024-12-06 03:23:04,223 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2024-12-06 03:23:04,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:23:04,223 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:23:04,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:23:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:23:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:23:13,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-06 03:23:13,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:23:18,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:23:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:23:19,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-12-06 03:23:19,168 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-12-06 03:23:19,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-06 03:23:19,169 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:23:19,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:23:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:23:19,176 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:23:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:23:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:23:19,210 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:23:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:23:19,224 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2024-12-06 03:23:19,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:23:19 ImpRootNode [2024-12-06 03:23:19,243 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:23:19,244 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:23:19,244 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:23:19,244 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:23:19,245 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:22:42" (3/4) ... [2024-12-06 03:23:19,246 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 03:23:19,247 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:23:19,247 INFO L158 Benchmark]: Toolchain (without parser) took 37367.95ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 116.7MB in the beginning and 148.8MB in the end (delta: -32.1MB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. [2024-12-06 03:23:19,248 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:23:19,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.06ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 104.7MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:23:19,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.63ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 103.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:23:19,249 INFO L158 Benchmark]: Boogie Preprocessor took 20.30ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 102.3MB in the end (delta: 976.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:23:19,249 INFO L158 Benchmark]: RCFGBuilder took 315.92ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 84.5MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:23:19,249 INFO L158 Benchmark]: CodeCheck took 36801.87ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 84.5MB in the beginning and 150.7MB in the end (delta: -66.1MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. [2024-12-06 03:23:19,250 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 302.0MB. Free memory was 150.7MB in the beginning and 148.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:23:19,252 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 3 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 36.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 15.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 15.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 20 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 274 GetRequests, 240 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 15.9s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 25 ConstructedInterpolants, 2 QuantifiedInterpolants, 208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 4/7 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 95, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of someBinaryArithmeticFLOAToperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 85. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L93] CALL, EXPR f(IN) VAL [\old(x)=2] [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) VAL [IN=2] [L93] CALL, EXPR fp(IN) VAL [\old(x)=2] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) VAL [IN=2] [L93] float x = IN - f(IN)/fp(IN); [L95] CALL, EXPR f(x) VAL [\old(x)=3] [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L95] RET, EXPR f(x) VAL [IN=2, x=3] [L95] CALL, EXPR fp(x) VAL [\old(x)=3] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L95] RET, EXPR fp(x) VAL [IN=2, x=3] [L95] x = x - f(x)/fp(x) [L101] COND TRUE !(x < 0.1) VAL [IN=2] [L102] reach_error() VAL [IN=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.06ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 104.7MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.63ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 103.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.30ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 102.3MB in the end (delta: 976.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 315.92ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 84.5MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 36801.87ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 84.5MB in the beginning and 150.7MB in the end (delta: -66.1MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 302.0MB. Free memory was 150.7MB in the beginning and 148.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 03:23:19,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_2_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/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 c4ab638d88884b11d280586d03327428928a19b8179f4a6f29c31c8f46b59f77 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:23:21,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:23:21,216 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-12-06 03:23:21,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:23:21,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:23:21,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:23:21,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:23:21,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:23:21,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:23:21,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:23:21,243 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:23:21,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:23:21,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:23:21,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:23:21,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:23:21,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:23:21,244 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 03:23:21,244 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 03:23:21,244 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 03:23:21,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:23:21,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:23:21,244 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:23:21,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:23:21,245 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:23:21,245 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:23:21,245 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:23:21,245 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 03:23:21,245 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 03:23:21,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:23:21,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:23:21,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:23:21,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:23:21,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:23:21,246 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 03:23:21,246 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 03:23:21,246 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 03:23:21,246 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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/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 -> c4ab638d88884b11d280586d03327428928a19b8179f4a6f29c31c8f46b59f77 [2024-12-06 03:23:21,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:23:21,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:23:21,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:23:21,484 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:23:21,484 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:23:21,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/combinations/gcd_1+newton_2_4.i [2024-12-06 03:23:24,169 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/data/91745ab45/1713d7aaf4e84d99bd03abaebbcaa0e4/FLAGa9abbba8a [2024-12-06 03:23:24,327 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:23:24,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/sv-benchmarks/c/combinations/gcd_1+newton_2_4.i [2024-12-06 03:23:24,336 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/data/91745ab45/1713d7aaf4e84d99bd03abaebbcaa0e4/FLAGa9abbba8a [2024-12-06 03:23:24,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/data/91745ab45/1713d7aaf4e84d99bd03abaebbcaa0e4 [2024-12-06 03:23:24,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:23:24,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:23:24,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:23:24,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:23:24,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:23:24,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec21f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24, skipping insertion in model container [2024-12-06 03:23:24,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,370 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:23:24,479 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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/sv-benchmarks/c/combinations/gcd_1+newton_2_4.i[1226,1239] [2024-12-06 03:23:24,504 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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/sv-benchmarks/c/combinations/gcd_1+newton_2_4.i[2807,2820] [2024-12-06 03:23:24,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:23:24,515 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:23:24,525 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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/sv-benchmarks/c/combinations/gcd_1+newton_2_4.i[1226,1239] [2024-12-06 03:23:24,535 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_28485b92-d9ca-4366-91b5-4ca7a62d39fb/sv-benchmarks/c/combinations/gcd_1+newton_2_4.i[2807,2820] [2024-12-06 03:23:24,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:23:24,550 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:23:24,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24 WrapperNode [2024-12-06 03:23:24,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:23:24,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:23:24,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:23:24,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:23:24,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,582 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 80 [2024-12-06 03:23:24,582 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:23:24,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:23:24,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:23:24,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:23:24,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,599 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:23:24,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:23:24,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:23:24,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:23:24,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:23:24" (1/1) ... [2024-12-06 03:23:24,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:23:24,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:23:24,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:23:24,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:23:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:23:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 03:23:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-06 03:23:24,660 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-06 03:23:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-06 03:23:24,660 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-06 03:23:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:23:24,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:23:24,715 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:23:24,717 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:23:48,691 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-12-06 03:23:48,691 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:23:48,753 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:23:48,753 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 03:23:48,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:23:48 BoogieIcfgContainer [2024-12-06 03:23:48,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:23:48,754 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:23:48,754 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:23:48,761 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:23:48,761 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:23:48" (1/1) ... [2024-12-06 03:23:48,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:23:48,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:23:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2024-12-06 03:23:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-12-06 03:23:48,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 03:23:48,805 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:23:48,805 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 03:23:48,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 03:23:48,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 03:23:48,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 03:23:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:23:48,937 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 03:23:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:23:48,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-06 03:23:48,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:23:49,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:23:49,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 03:23:49,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:23:49,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2024-12-06 03:23:49,358 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-12-06 03:23:49,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:23:49,358 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:23:49,358 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 03:23:49,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 03:23:49,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 03:23:49,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 03:23:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:23:49,621 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 03:23:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:23:49,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-06 03:23:49,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:23:49,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:23:49,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-06 03:23:51,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:23:51,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2024-12-06 03:23:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2024-12-06 03:23:51,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:23:51,602 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:23:51,602 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 03:23:51,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 03:23:51,604 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 03:23:51,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-06 03:23:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:23:52,274 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 03:23:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:23:55,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-06 03:23:55,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:24:04,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:24:04,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-06 03:24:11,347 WARN L286 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 27 DAG size of output: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:24:14,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-06 03:24:17,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-06 03:24:21,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:24:21,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2024-12-06 03:24:21,290 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2024-12-06 03:24:21,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:24:21,290 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:24:21,291 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 03:24:21,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 03:24:21,292 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 03:24:21,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-06 03:24:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:24:22,031 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 03:24:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:24:23,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-06 03:24:23,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:24:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:24:32,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-06 03:24:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:24:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-12-06 03:24:45,212 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-12-06 03:24:45,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-06 03:24:45,213 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:24:45,213 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 03:24:45,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 03:24:45,215 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 03:24:45,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28485b92-d9ca-4366-91b5-4ca7a62d39fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process