./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_2_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_2_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24df3a04bdb7e751c4f0d163e80822f74241222ac6f56a91a0bf72df65694e1b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:18:52,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:18:52,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:18:52,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:18:52,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:18:52,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:18:52,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:18:52,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:18:52,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:18:52,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:18:52,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:18:52,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:18:52,570 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:18:52,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:18:52,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:18:52,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:18:52,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:18:52,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:18:52,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:18:52,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:18:52,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:18:52,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:18:52,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:18:52,571 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:18:52,572 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:18:52,572 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:18:52,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:18:52,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:18:52,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:18:52,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:18:52,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:18:52,573 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:18:52,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:18:52,573 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24df3a04bdb7e751c4f0d163e80822f74241222ac6f56a91a0bf72df65694e1b [2024-11-13 20:18:52,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:18:52,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:18:52,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:18:52,870 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:18:52,870 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:18:52,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/combinations/gcd_1+newton_2_8.i Unable to find full path for "g++" [2024-11-13 20:18:54,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:18:55,101 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:18:55,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i [2024-11-13 20:18:55,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/data/daf44a19b/99a7034bf68a4e2fb4202000847f6f5e/FLAGa3cb97654 [2024-11-13 20:18:55,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/data/daf44a19b/99a7034bf68a4e2fb4202000847f6f5e [2024-11-13 20:18:55,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:18:55,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:18:55,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:18:55,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:18:55,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:18:55,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55969ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55, skipping insertion in model container [2024-11-13 20:18:55,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:18:55,307 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[1226,1239] [2024-11-13 20:18:55,347 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[2807,2820] [2024-11-13 20:18:55,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:18:55,361 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:18:55,375 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[1226,1239] [2024-11-13 20:18:55,390 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[2807,2820] [2024-11-13 20:18:55,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:18:55,407 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:18:55,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55 WrapperNode [2024-11-13 20:18:55,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:18:55,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:18:55,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:18:55,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:18:55,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,423 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,442 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2024-11-13 20:18:55,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:18:55,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:18:55,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:18:55,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:18:55,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:18:55,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:18:55,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:18:55,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:18:55,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:18:55" (1/1) ... [2024-11-13 20:18:55,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:18:55,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:18:55,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:18:55,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:18:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:18:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-13 20:18:55,539 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-13 20:18:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-13 20:18:55,540 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-13 20:18:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:18:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:18:55,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:18:55,625 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:18:55,628 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:18:55,914 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-13 20:18:55,914 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:18:56,016 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:18:56,018 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 20:18:56,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:18:56 BoogieIcfgContainer [2024-11-13 20:18:56,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:18:56,019 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:18:56,020 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:18:56,032 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:18:56,032 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:18:56" (1/1) ... [2024-11-13 20:18:56,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:18:56,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:18:56,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2024-11-13 20:18:56,115 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-11-13 20:18:56,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 20:18:56,123 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:18:56,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:18:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:18:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:18:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:18:56,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2024-11-13 20:18:56,609 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-13 20:18:56,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 20:18:56,610 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:18:56,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:18:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:18:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:18:57,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:18:57,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2024-11-13 20:18:57,183 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-13 20:18:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 20:18:57,183 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:18:57,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:18:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 20:19:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:04,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 20:19:04,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:19:10,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:19:18,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 20:19:20,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:20,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-11-13 20:19:20,409 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-13 20:19:20,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 20:19:20,410 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:20,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:20,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:20,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:20,509 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-13 20:19:20,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:19:20 ImpRootNode [2024-11-13 20:19:20,533 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:19:20,534 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:19:20,534 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:19:20,534 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:19:20,535 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:18:56" (3/4) ... [2024-11-13 20:19:20,537 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 20:19:20,537 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:19:20,538 INFO L158 Benchmark]: Toolchain (without parser) took 25410.33ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 51.1MB in the end (delta: 41.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-13 20:19:20,539 INFO L158 Benchmark]: CDTParser took 1.49ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 74.2MB in the end (delta: 195.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:20,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.88ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:19:20,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.82ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:19:20,540 INFO L158 Benchmark]: Boogie Preprocessor took 22.75ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 78.5MB in the end (delta: 898.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:20,540 INFO L158 Benchmark]: RCFGBuilder took 551.89ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 61.2MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:19:20,541 INFO L158 Benchmark]: CodeCheck took 24513.86ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 51.1MB in the end (delta: 10.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-11-13 20:19:20,541 INFO L158 Benchmark]: Witness Printer took 3.68ms. Allocated memory is still 117.4MB. Free memory was 51.1MB in the beginning and 51.1MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:20,544 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: 24.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 6.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 15 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 7.5s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 1 QuantifiedInterpolants, 110 SizeOfPredicates, 1 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - 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 80, overapproximation of someBinaryArithmeticFLOAToperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 95, 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 > -2.0f && IN < 2.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [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 1.49ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 74.2MB in the end (delta: 195.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.88ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.82ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.75ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 78.5MB in the end (delta: 898.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 551.89ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 61.2MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 24513.86ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 51.1MB in the end (delta: 10.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Witness Printer took 3.68ms. Allocated memory is still 117.4MB. Free memory was 51.1MB in the beginning and 51.1MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 20:19:20,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_2_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24df3a04bdb7e751c4f0d163e80822f74241222ac6f56a91a0bf72df65694e1b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:19:23,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:19:23,320 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-13 20:19:23,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:19:23,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:19:23,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:19:23,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:19:23,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:19:23,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:19:23,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:19:23,370 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:19:23,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:19:23,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:19:23,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:19:23,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:19:23,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:19:23,370 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 20:19:23,370 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 20:19:23,371 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:19:23,371 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 20:19:23,371 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:19:23,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:19:23,371 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:19:23,371 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:19:23,371 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:19:23,371 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:19:23,371 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:23,371 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 20:19:23,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:19:23,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:23,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:19:23,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:19:23,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:19:23,372 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 20:19:23,372 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:23,372 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 20:19:23,372 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24df3a04bdb7e751c4f0d163e80822f74241222ac6f56a91a0bf72df65694e1b [2024-11-13 20:19:23,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:19:23,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:19:23,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:19:23,736 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:19:23,737 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:19:23,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/combinations/gcd_1+newton_2_8.i Unable to find full path for "g++" [2024-11-13 20:19:25,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:19:25,891 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:19:25,891 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i [2024-11-13 20:19:25,900 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/data/4239b653f/819741d390c8487881ed379d9cdb5709/FLAG1e5063a3f [2024-11-13 20:19:26,253 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/data/4239b653f/819741d390c8487881ed379d9cdb5709 [2024-11-13 20:19:26,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:19:26,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:19:26,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:26,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:19:26,262 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:19:26,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4411fc6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26, skipping insertion in model container [2024-11-13 20:19:26,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,278 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:19:26,467 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[1226,1239] [2024-11-13 20:19:26,513 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[2807,2820] [2024-11-13 20:19:26,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:26,539 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:19:26,551 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[1226,1239] [2024-11-13 20:19:26,568 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_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[2807,2820] [2024-11-13 20:19:26,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:26,586 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:19:26,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26 WrapperNode [2024-11-13 20:19:26,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:26,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:26,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:19:26,588 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:19:26,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,622 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 80 [2024-11-13 20:19:26,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:26,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:19:26,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:19:26,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:19:26,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:19:26,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:19:26,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:19:26,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:19:26,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:26" (1/1) ... [2024-11-13 20:19:26,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:26,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:19:26,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:19:26,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:19:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:19:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 20:19:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-13 20:19:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-13 20:19:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-13 20:19:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-13 20:19:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:19:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:19:26,835 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:19:26,837 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:19:47,964 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 20:19:47,964 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:19:48,035 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:19:48,035 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 20:19:48,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:48 BoogieIcfgContainer [2024-11-13 20:19:48,036 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:19:48,036 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:19:48,037 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:19:48,048 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:19:48,048 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:48" (1/1) ... [2024-11-13 20:19:48,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:19:48,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:48,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2024-11-13 20:19:48,128 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-11-13 20:19:48,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 20:19:48,133 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:48,134 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:48,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:19:48,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:19:48,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 20:19:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:48,364 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:19:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:48,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 20:19:48,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:19:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:19:48,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 20:19:48,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:48,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2024-11-13 20:19:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-13 20:19:48,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 20:19:48,917 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:48,918 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:48,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:19:48,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:19:48,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 20:19:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:49,278 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:19:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:49,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 20:19:49,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:19:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:19:49,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-13 20:19:51,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:51,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2024-11-13 20:19:51,881 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2024-11-13 20:19:51,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 20:19:51,882 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:51,883 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:51,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:19:51,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:19:51,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-13 20:19:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:52,788 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:19:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:55,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 20:19:55,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:20:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:20:03,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-13 20:20:21,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 20:20:22,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 20:20:23,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:20:23,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2024-11-13 20:20:23,071 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2024-11-13 20:20:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 20:20:23,072 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:20:23,072 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:20:23,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:20:23,078 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:20:23,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-13 20:20:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:20:24,035 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:20:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:20:28,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 20:20:28,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:20:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:20:37,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-13 20:20:39,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:20:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-11-13 20:20:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-13 20:20:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 20:20:39,714 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:20:39,714 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:20:39,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:20:39,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:20:39,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0f98be-3217-4bba-93d6-2e9d7a1844b7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process