./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/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_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24df3a04bdb7e751c4f0d163e80822f74241222ac6f56a91a0bf72df65694e1b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:29:21,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:29:21,078 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 21:29:21,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:29:21,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:29:21,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:29:21,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:29:21,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:29:21,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:29:21,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:29:21,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:29:21,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:29:21,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:29:21,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:29:21,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:29:21,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:29:21,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:29:21,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:29:21,109 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:29:21,109 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:29:21,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:29:21,109 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:29:21,109 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:29:21,109 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:29:21,109 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:29:21,110 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:29:21,110 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:29:21,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:29:21,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:29:21,110 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:29:21,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:29:21,110 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:29:21,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:29:21,111 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_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24df3a04bdb7e751c4f0d163e80822f74241222ac6f56a91a0bf72df65694e1b [2024-12-05 21:29:21,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:29:21,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:29:21,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:29:21,386 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:29:21,386 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:29:21,388 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/combinations/gcd_1+newton_2_8.i [2024-12-05 21:29:24,453 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/data/e415875b7/d5063ae685dc46e1bd7bebf1b698e11d/FLAGdc7bf183a [2024-12-05 21:29:24,662 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:29:24,662 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i [2024-12-05 21:29:24,670 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/data/e415875b7/d5063ae685dc46e1bd7bebf1b698e11d/FLAGdc7bf183a [2024-12-05 21:29:24,686 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/data/e415875b7/d5063ae685dc46e1bd7bebf1b698e11d [2024-12-05 21:29:24,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:29:24,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:29:24,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:29:24,693 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:29:24,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:29:24,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:24,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a3ba46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24, skipping insertion in model container [2024-12-05 21:29:24,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:24,717 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:29:24,884 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_f4773878-48a9-483d-8bc2-f4ee23e49675/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[1226,1239] [2024-12-05 21:29:24,917 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_f4773878-48a9-483d-8bc2-f4ee23e49675/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[2807,2820] [2024-12-05 21:29:24,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:29:24,930 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:29:24,944 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_f4773878-48a9-483d-8bc2-f4ee23e49675/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[1226,1239] [2024-12-05 21:29:24,954 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_f4773878-48a9-483d-8bc2-f4ee23e49675/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[2807,2820] [2024-12-05 21:29:24,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:29:24,970 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:29:24,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24 WrapperNode [2024-12-05 21:29:24,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:29:24,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:29:24,972 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:29:24,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:29:24,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:24,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,006 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2024-12-05 21:29:25,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:29:25,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:29:25,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:29:25,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:29:25,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,023 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,031 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:29:25,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:29:25,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:29:25,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:29:25,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:29:24" (1/1) ... [2024-12-05 21:29:25,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:29:25,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:29:25,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:29:25,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:29:25,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:29:25,102 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-05 21:29:25,102 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-05 21:29:25,102 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-05 21:29:25,102 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-05 21:29:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:29:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:29:25,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:29:25,173 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:29:25,175 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:29:25,373 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-12-05 21:29:25,373 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:29:25,436 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:29:25,437 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 21:29:25,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:29:25 BoogieIcfgContainer [2024-12-05 21:29:25,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:29:25,438 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:29:25,438 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:29:25,450 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:29:25,450 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:29:25" (1/1) ... [2024-12-05 21:29:25,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:29:25,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:29:25,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2024-12-05 21:29:25,510 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-12-05 21:29:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 21:29:25,514 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:29:25,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:29:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:29:25,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:29:25,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:29:25,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2024-12-05 21:29:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-12-05 21:29:25,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 21:29:25,811 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:29:25,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:29:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:29:26,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:29:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:29:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2024-12-05 21:29:26,293 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2024-12-05 21:29:26,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 21:29:26,294 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:29:26,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:29:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:29:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:29:33,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-05 21:29:33,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:29:39,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:29:47,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.67s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-05 21:29:48,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:29:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2024-12-05 21:29:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2024-12-05 21:29:48,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 21:29:48,023 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:29:48,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:29:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:29:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:29:57,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-05 21:29:57,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:30:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:30:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:30:03,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-12-05 21:30:03,436 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-12-05 21:30:03,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-05 21:30:03,437 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:30:03,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:30:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:30:03,445 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:30:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:30:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:30:03,473 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:30:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:30:03,488 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2024-12-05 21:30:03,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:30:03 ImpRootNode [2024-12-05 21:30:03,510 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:30:03,510 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:30:03,510 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:30:03,511 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:30:03,511 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:29:25" (3/4) ... [2024-12-05 21:30:03,513 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 21:30:03,513 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:30:03,514 INFO L158 Benchmark]: Toolchain (without parser) took 38823.39ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 116.8MB in the beginning and 167.6MB in the end (delta: -50.8MB). Peak memory consumption was 113.7MB. Max. memory is 16.1GB. [2024-12-05 21:30:03,515 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:30:03,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.15ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 104.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:30:03,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.05ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:30:03,516 INFO L158 Benchmark]: Boogie Preprocessor took 26.92ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 102.3MB in the end (delta: 973.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:30:03,516 INFO L158 Benchmark]: RCFGBuilder took 402.98ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 84.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 21:30:03,517 INFO L158 Benchmark]: CodeCheck took 38071.76ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 84.5MB in the beginning and 167.7MB in the end (delta: -83.1MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. [2024-12-05 21:30:03,517 INFO L158 Benchmark]: Witness Printer took 3.01ms. Allocated memory is still 310.4MB. Free memory was 167.7MB in the beginning and 167.6MB in the end (delta: 41.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:30:03,519 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: 38.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 15.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 15.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 20 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 274 GetRequests, 240 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 16.6s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 25 ConstructedInterpolants, 2 QuantifiedInterpolants, 208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 102]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 95, overapproximation of someBinaryArithmeticFLOAToperation at line 85, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of someBinaryArithmeticFLOAToperation at line 93. 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 0.41ms. Allocated memory is still 142.6MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.15ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 104.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.05ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.92ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 102.3MB in the end (delta: 973.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 402.98ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 84.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 38071.76ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 84.5MB in the beginning and 167.7MB in the end (delta: -83.1MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. * Witness Printer took 3.01ms. Allocated memory is still 310.4MB. Free memory was 167.7MB in the beginning and 167.6MB in the end (delta: 41.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 21:30:03,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/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_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24df3a04bdb7e751c4f0d163e80822f74241222ac6f56a91a0bf72df65694e1b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:30:05,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:30:05,554 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-12-05 21:30:05,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:30:05,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:30:05,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:30:05,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:30:05,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:30:05,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:30:05,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:30:05,581 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:30:05,581 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:30:05,582 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:30:05,583 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:30:05,583 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:30:05,583 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:30:05,583 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 21:30:05,583 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 21:30:05,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:30:05,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:30:05,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:30:05,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:30:05,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:30:05,584 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 21:30:05,584 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 21:30:05,584 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 21:30:05,584 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_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24df3a04bdb7e751c4f0d163e80822f74241222ac6f56a91a0bf72df65694e1b [2024-12-05 21:30:05,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:30:05,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:30:05,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:30:05,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:30:05,826 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:30:05,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/combinations/gcd_1+newton_2_8.i [2024-12-05 21:30:08,494 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/data/2fbc70024/5d733f47e46a4f3c8cfd379eac5b155d/FLAG7e4f683c0 [2024-12-05 21:30:08,652 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:30:08,652 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i [2024-12-05 21:30:08,660 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/data/2fbc70024/5d733f47e46a4f3c8cfd379eac5b155d/FLAG7e4f683c0 [2024-12-05 21:30:09,041 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/data/2fbc70024/5d733f47e46a4f3c8cfd379eac5b155d [2024-12-05 21:30:09,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:30:09,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:30:09,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:30:09,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:30:09,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:30:09,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef45dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09, skipping insertion in model container [2024-12-05 21:30:09,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,059 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:30:09,167 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_f4773878-48a9-483d-8bc2-f4ee23e49675/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[1226,1239] [2024-12-05 21:30:09,190 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_f4773878-48a9-483d-8bc2-f4ee23e49675/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[2807,2820] [2024-12-05 21:30:09,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:30:09,200 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:30:09,209 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_f4773878-48a9-483d-8bc2-f4ee23e49675/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[1226,1239] [2024-12-05 21:30:09,221 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_f4773878-48a9-483d-8bc2-f4ee23e49675/sv-benchmarks/c/combinations/gcd_1+newton_2_8.i[2807,2820] [2024-12-05 21:30:09,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:30:09,237 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:30:09,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09 WrapperNode [2024-12-05 21:30:09,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:30:09,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:30:09,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:30:09,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:30:09,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,269 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 80 [2024-12-05 21:30:09,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:30:09,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:30:09,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:30:09,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:30:09,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,286 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,296 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:30:09,297 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:30:09,297 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:30:09,297 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:30:09,297 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:30:09" (1/1) ... [2024-12-05 21:30:09,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:30:09,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:30:09,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:30:09,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:30:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:30:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 21:30:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-05 21:30:09,354 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-05 21:30:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-05 21:30:09,354 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-05 21:30:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:30:09,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:30:09,409 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:30:09,410 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:30:32,702 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-12-05 21:30:32,703 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:30:32,760 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:30:32,761 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 21:30:32,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:30:32 BoogieIcfgContainer [2024-12-05 21:30:32,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:30:32,762 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:30:32,762 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:30:32,769 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:30:32,770 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:30:32" (1/1) ... [2024-12-05 21:30:32,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:30:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:30:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2024-12-05 21:30:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-12-05 21:30:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 21:30:32,813 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:30:32,814 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:30:32,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:30:32,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:30:32,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 21:30:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:30:32,943 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:30:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:30:32,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 21:30:32,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:30:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:30:33,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 21:30:33,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:30:33,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2024-12-05 21:30:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-12-05 21:30:33,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 21:30:33,336 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:30:33,336 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:30:33,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:30:33,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:30:33,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 21:30:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:30:33,646 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:30:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:30:33,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-05 21:30:33,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:30:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:30:34,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-05 21:30:36,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:30:36,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2024-12-05 21:30:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2024-12-05 21:30:36,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 21:30:36,070 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:30:36,071 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:30:36,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:30:36,073 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:30:36,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-05 21:30:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:30:36,879 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:30:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:30:39,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 21:30:39,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:30:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:30:50,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-05 21:30:58,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:31:02,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:31:05,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:31:05,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2024-12-05 21:31:05,654 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2024-12-05 21:31:05,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 21:31:05,654 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:31:05,654 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:31:05,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:31:05,656 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:31:05,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-05 21:31:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:31:06,285 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:31:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:31:08,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 21:31:08,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:31:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:31:19,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-05 21:31:35,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:31:42,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.45s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:31:44,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:31:46,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:31:47,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:31:49,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:31:49,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:31:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-12-05 21:31:49,373 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-12-05 21:31:49,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-05 21:31:49,373 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:31:49,373 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:31:49,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:31:49,375 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:31:49,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4773878-48a9-483d-8bc2-f4ee23e49675/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process