./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_3_4.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_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/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_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_3_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/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_cccd8ccf-68ee-4284-8693-2b883c5d184f/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 605f47223f627b5d6ab9bc7372537ce49861197321d9038cf5b3c12fa8fcd03f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:02:50,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:02:50,647 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 23:02:50,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:02:50,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 23:02:50,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:02:50,683 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:02:50,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:02:50,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:02:50,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:02:50,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:02:50,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:02:50,686 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:02:50,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:02:50,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:02:50,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:02:50,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:02:50,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:02:50,687 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:02:50,687 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:02:50,687 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:02:50,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:02:50,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:02:50,688 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:02:50,688 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:02:50,688 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:02:50,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:02:50,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:02:50,688 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:02:50,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:02:50,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:02:50,688 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 23:02:50,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:02:50,689 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_cccd8ccf-68ee-4284-8693-2b883c5d184f/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 -> 605f47223f627b5d6ab9bc7372537ce49861197321d9038cf5b3c12fa8fcd03f [2024-11-13 23:02:51,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:02:51,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:02:51,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:02:51,064 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:02:51,065 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:02:51,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/combinations/gcd_1+newton_3_4.i Unable to find full path for "g++" [2024-11-13 23:02:52,981 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:02:53,227 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:02:53,228 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/sv-benchmarks/c/combinations/gcd_1+newton_3_4.i [2024-11-13 23:02:53,241 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/data/b01563fd0/259c7df2b94545f4a9a87313ef492d39/FLAGb777f2903 [2024-11-13 23:02:53,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/data/b01563fd0/259c7df2b94545f4a9a87313ef492d39 [2024-11-13 23:02:53,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:02:53,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:02:53,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:02:53,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:02:53,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:02:53,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726d9a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53, skipping insertion in model container [2024-11-13 23:02:53,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:02:53,749 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_cccd8ccf-68ee-4284-8693-2b883c5d184f/sv-benchmarks/c/combinations/gcd_1+newton_3_4.i[1226,1239] [2024-11-13 23:02:53,781 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_cccd8ccf-68ee-4284-8693-2b883c5d184f/sv-benchmarks/c/combinations/gcd_1+newton_3_4.i[2828,2841] [2024-11-13 23:02:53,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:02:53,802 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:02:53,814 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_cccd8ccf-68ee-4284-8693-2b883c5d184f/sv-benchmarks/c/combinations/gcd_1+newton_3_4.i[1226,1239] [2024-11-13 23:02:53,825 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_cccd8ccf-68ee-4284-8693-2b883c5d184f/sv-benchmarks/c/combinations/gcd_1+newton_3_4.i[2828,2841] [2024-11-13 23:02:53,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:02:53,841 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:02:53,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53 WrapperNode [2024-11-13 23:02:53,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:02:53,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:02:53,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:02:53,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:02:53,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,871 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 90 [2024-11-13 23:02:53,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:02:53,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:02:53,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:02:53,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:02:53,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,881 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:02:53,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:02:53,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:02:53,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:02:53,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:53" (1/1) ... [2024-11-13 23:02:53,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:02:53,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:02:53,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:02:53,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:02:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:02:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-13 23:02:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-13 23:02:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-13 23:02:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-13 23:02:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:02:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:02:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:02:54,038 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:02:54,040 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:02:54,257 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-13 23:02:54,257 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:02:54,333 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:02:54,333 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:02:54,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:02:54 BoogieIcfgContainer [2024-11-13 23:02:54,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:02:54,335 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:02:54,335 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:02:54,345 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:02:54,346 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:02:54" (1/1) ... [2024-11-13 23:02:54,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:02:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:02:54,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2024-11-13 23:02:54,416 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-11-13 23:02:54,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 23:02:54,421 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:02:54,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:02:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:02:54,839 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 23:02:54,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:02:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 29 states and 37 transitions. [2024-11-13 23:02:54,944 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2024-11-13 23:02:54,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 23:02:54,945 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:02:54,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:02:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:02:55,256 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 23:02:55,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:02:55,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 31 states and 40 transitions. [2024-11-13 23:02:55,447 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2024-11-13 23:02:55,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:02:55,448 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:02:55,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:02:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:02:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:02:57,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 23:02:57,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:03:04,367 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 23:03:14,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:03:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:03:15,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2024-11-13 23:03:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2024-11-13 23:03:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 23:03:15,639 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:03:15,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:03:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:03:15,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:03:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:03:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:03:15,697 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:03:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:03:15,735 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-13 23:03:15,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:03:15 ImpRootNode [2024-11-13 23:03:15,767 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:03:15,768 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:03:15,768 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:03:15,768 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:03:15,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:02:54" (3/4) ... [2024-11-13 23:03:15,770 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:03:15,771 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:03:15,772 INFO L158 Benchmark]: Toolchain (without parser) took 22221.55ms. Allocated memory is still 142.6MB. Free memory was 119.6MB in the beginning and 90.6MB in the end (delta: 29.0MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-13 23:03:15,772 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:03:15,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.04ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 107.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:03:15,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.78ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 105.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:03:15,773 INFO L158 Benchmark]: Boogie Preprocessor took 20.88ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 105.0MB in the end (delta: 928.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:03:15,773 INFO L158 Benchmark]: RCFGBuilder took 439.90ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 87.1MB in the end (delta: 17.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 23:03:15,773 INFO L158 Benchmark]: CodeCheck took 21432.64ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 90.6MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:03:15,774 INFO L158 Benchmark]: Witness Printer took 2.95ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 90.6MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:03:15,776 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, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 21.4s, 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, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 8.5s 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, 165 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 1 QuantifiedInterpolants, 116 SizeOfPredicates, 0 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 26 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 95, overapproximation of someBinaryArithmeticFLOAToperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 97, overapproximation of someBinaryArithmeticFLOAToperation at line 80, 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) [L97] CALL, EXPR f(x) VAL [\old(x)=4] [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L97] RET, EXPR f(x) VAL [IN=2, x=4] [L97] CALL, EXPR fp(x) VAL [\old(x)=4] [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L97] RET, EXPR fp(x) VAL [IN=2, x=4] [L97] 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 0.35ms. Allocated memory is still 142.6MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.04ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 107.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.78ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 105.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.88ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 105.0MB in the end (delta: 928.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 439.90ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 87.1MB in the end (delta: 17.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 21432.64ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 90.6MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.95ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 90.6MB in the end (delta: 27.0kB). 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 23:03:15,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/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_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/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_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_3_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/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_cccd8ccf-68ee-4284-8693-2b883c5d184f/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 605f47223f627b5d6ab9bc7372537ce49861197321d9038cf5b3c12fa8fcd03f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:03:18,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:03:18,495 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-13 23:03:18,523 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:03:18,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:03:18,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:03:18,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:03:18,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:03:18,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:03:18,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:03:18,526 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:03:18,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:03:18,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:03:18,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:03:18,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:03:18,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:03:18,526 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:03:18,527 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:03:18,527 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:03:18,527 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:03:18,527 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:03:18,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:03:18,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:03:18,527 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:03:18,528 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:03:18,528 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:03:18,528 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:03:18,528 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 23:03:18,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:03:18,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:03:18,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:03:18,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:03:18,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:03:18,529 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:03:18,529 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:03:18,529 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 23:03:18,529 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_cccd8ccf-68ee-4284-8693-2b883c5d184f/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 -> 605f47223f627b5d6ab9bc7372537ce49861197321d9038cf5b3c12fa8fcd03f [2024-11-13 23:03:18,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:03:18,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:03:18,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:03:18,842 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:03:18,842 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:03:18,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/combinations/gcd_1+newton_3_4.i Unable to find full path for "g++" [2024-11-13 23:03:20,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:03:21,071 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:03:21,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/sv-benchmarks/c/combinations/gcd_1+newton_3_4.i [2024-11-13 23:03:21,084 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/data/9bbb91df4/5132da3da240465eb2e3fdb17339d37d/FLAG677b08dff [2024-11-13 23:03:21,110 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/data/9bbb91df4/5132da3da240465eb2e3fdb17339d37d [2024-11-13 23:03:21,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:03:21,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:03:21,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:03:21,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:03:21,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:03:21,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d19d561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21, skipping insertion in model container [2024-11-13 23:03:21,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,153 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:03:21,326 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_cccd8ccf-68ee-4284-8693-2b883c5d184f/sv-benchmarks/c/combinations/gcd_1+newton_3_4.i[1226,1239] [2024-11-13 23:03:21,365 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_cccd8ccf-68ee-4284-8693-2b883c5d184f/sv-benchmarks/c/combinations/gcd_1+newton_3_4.i[2828,2841] [2024-11-13 23:03:21,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:03:21,391 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:03:21,409 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_cccd8ccf-68ee-4284-8693-2b883c5d184f/sv-benchmarks/c/combinations/gcd_1+newton_3_4.i[1226,1239] [2024-11-13 23:03:21,430 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_cccd8ccf-68ee-4284-8693-2b883c5d184f/sv-benchmarks/c/combinations/gcd_1+newton_3_4.i[2828,2841] [2024-11-13 23:03:21,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:03:21,452 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:03:21,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21 WrapperNode [2024-11-13 23:03:21,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:03:21,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:03:21,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:03:21,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:03:21,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,500 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2024-11-13 23:03:21,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:03:21,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:03:21,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:03:21,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:03:21,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,529 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,548 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:03:21,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:03:21,549 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:03:21,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:03:21,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:03:21" (1/1) ... [2024-11-13 23:03:21,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:03:21,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:03:21,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:03:21,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:03:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:03:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:03:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-13 23:03:21,628 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-13 23:03:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-13 23:03:21,628 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-13 23:03:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:03:21,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:03:21,705 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:03:21,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:03:46,101 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 23:03:46,101 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:03:46,206 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:03:46,207 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:03:46,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:03:46 BoogieIcfgContainer [2024-11-13 23:03:46,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:03:46,209 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:03:46,209 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:03:46,221 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:03:46,221 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:03:46" (1/1) ... [2024-11-13 23:03:46,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:03:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:03:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2024-11-13 23:03:46,312 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-11-13 23:03:46,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 23:03:46,318 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:03:46,320 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:03:46,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:03:46,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:03:46,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 23:03:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:03:46,604 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:03:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:03:46,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:03:46,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:03:46,863 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 23:03:46,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 23:03:47,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:03:47,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 29 states and 38 transitions. [2024-11-13 23:03:47,173 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2024-11-13 23:03:47,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 23:03:47,174 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:03:47,174 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:03:47,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:03:47,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:03:47,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 23:03:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:03:47,581 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:03:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:03:47,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:03:47,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:03:48,196 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 23:03:48,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-13 23:03:50,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:03:50,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2024-11-13 23:03:50,327 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2024-11-13 23:03:50,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:03:50,329 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:03:50,329 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:03:50,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:03:50,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:03:50,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-13 23:03:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:03:51,607 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:03:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:03:54,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 23:03:54,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:04:03,998 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 23:04:04,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-13 23:04:20,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 23:04:21,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 23:04:21,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:04:21,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 33 states and 51 transitions. [2024-11-13 23:04:21,908 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2024-11-13 23:04:21,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:04:21,908 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:04:21,908 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:04:21,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:04:21,914 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:04:21,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-13 23:04:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:04:23,033 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:04:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:04:26,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 23:04:26,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:04:36,775 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 23:04:36,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-13 23:04:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:04:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2024-11-13 23:04:39,045 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2024-11-13 23:04:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 23:04:39,046 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:04:39,046 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:04:39,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:04:39,048 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:04:39,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccd8ccf-68ee-4284-8693-2b883c5d184f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process