./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound2.c --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_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/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_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/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_242141ea-c972-4317-80aa-74a68596b772/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 f9a59972454f7ae078581bb1592875955e31a3bd05f52cbebd7b164f55fa53bc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:46:16,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:46:16,524 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 22:46:16,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 22:46:16,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 22:46:16,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:46:16,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:46:16,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:46:16,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:46:16,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:46:16,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:46:16,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:46:16,549 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 22:46:16,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 22:46:16,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 22:46:16,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:46:16,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:46:16,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:46:16,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:46:16,549 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 22:46:16,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:46:16,550 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:46:16,550 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:46:16,550 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:46:16,550 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:46:16,550 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:46:16,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:46:16,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:46:16,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:46:16,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:46:16,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:46:16,551 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 22:46:16,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 22:46:16,551 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_242141ea-c972-4317-80aa-74a68596b772/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 -> f9a59972454f7ae078581bb1592875955e31a3bd05f52cbebd7b164f55fa53bc [2024-12-05 22:46:16,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:46:16,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:46:16,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:46:16,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:46:16,770 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:46:16,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound2.c [2024-12-05 22:46:19,484 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/data/453faf1c5/f492385e7e2a484bbf7f9099f983c7c9/FLAG5b1394613 [2024-12-05 22:46:19,675 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:46:19,676 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound2.c [2024-12-05 22:46:19,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/data/453faf1c5/f492385e7e2a484bbf7f9099f983c7c9/FLAG5b1394613 [2024-12-05 22:46:19,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/data/453faf1c5/f492385e7e2a484bbf7f9099f983c7c9 [2024-12-05 22:46:19,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:46:19,700 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:46:19,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:46:19,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:46:19,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:46:19,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fe01b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19, skipping insertion in model container [2024-12-05 22:46:19,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:46:19,824 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_242141ea-c972-4317-80aa-74a68596b772/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound2.c[573,586] [2024-12-05 22:46:19,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:46:19,844 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:46:19,852 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_242141ea-c972-4317-80aa-74a68596b772/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound2.c[573,586] [2024-12-05 22:46:19,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:46:19,867 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:46:19,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19 WrapperNode [2024-12-05 22:46:19,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:46:19,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:46:19,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:46:19,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:46:19,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,889 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2024-12-05 22:46:19,889 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:46:19,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:46:19,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:46:19,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:46:19,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,899 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:46:19,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:46:19,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:46:19,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:46:19,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:46:19" (1/1) ... [2024-12-05 22:46:19,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:46:19,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:46:19,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:46:19,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:46:19,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:46:19,956 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-05 22:46:19,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-05 22:46:19,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 22:46:19,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:46:19,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:46:19,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 22:46:19,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 22:46:19,999 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:46:20,000 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:46:20,107 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-12-05 22:46:20,107 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:46:20,142 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:46:20,142 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 22:46:20,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:46:20 BoogieIcfgContainer [2024-12-05 22:46:20,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:46:20,143 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:46:20,144 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:46:20,151 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:46:20,151 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:46:20" (1/1) ... [2024-12-05 22:46:20,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:46:20,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:46:20,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-12-05 22:46:20,200 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-12-05 22:46:20,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 22:46:20,204 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:46:20,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:46:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:46:20,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 22:46:20,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:46:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-12-05 22:46:20,334 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-12-05 22:46:20,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 22:46:20,334 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:46:20,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:46:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 22:46:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:46:20,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 22:46:20,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 22:46:20,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 22:46:20,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:46:20,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-12-05 22:46:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-12-05 22:46:20,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 22:46:20,564 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:46:20,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:46:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:46:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 22:46:20,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:46:20,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-12-05 22:46:20,911 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-12-05 22:46:20,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 22:46:20,912 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:46:20,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:46:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:46:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 22:46:21,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:46:21,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-12-05 22:46:21,576 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-12-05 22:46:21,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-05 22:46:21,576 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:46:21,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:46:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:46:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 22:46:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:46:22,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 44 transitions. [2024-12-05 22:46:22,485 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2024-12-05 22:46:22,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-05 22:46:22,485 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:46:22,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:46:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 22:46:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:46:22,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-05 22:46:22,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 22:46:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 22:46:23,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:46:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 35 states and 55 transitions. [2024-12-05 22:46:23,182 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 55 transitions. [2024-12-05 22:46:23,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-05 22:46:23,183 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:46:23,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:46:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:46:23,239 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 22:46:23,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:46:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 56 transitions. [2024-12-05 22:46:23,689 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 56 transitions. [2024-12-05 22:46:23,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 22:46:23,690 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:46:23,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:46:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:46:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 22:46:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:46:25,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 32 states and 40 transitions. [2024-12-05 22:46:25,224 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-12-05 22:46:25,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 22:46:25,225 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:46:25,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:46:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 22:46:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:46:25,265 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:46:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:46:25,305 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2024-12-05 22:46:25,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:46:25 ImpRootNode [2024-12-05 22:46:25,333 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:46:25,333 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:46:25,333 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:46:25,334 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:46:25,334 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:46:20" (3/4) ... [2024-12-05 22:46:25,335 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 22:46:25,377 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 22. [2024-12-05 22:46:25,433 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 22:46:25,433 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 22:46:25,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:46:25,435 INFO L158 Benchmark]: Toolchain (without parser) took 5734.66ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 83.3MB in the end (delta: 33.0MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2024-12-05 22:46:25,435 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:46:25,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.63ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 105.2MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 22:46:25,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.45ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 103.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:46:25,436 INFO L158 Benchmark]: Boogie Preprocessor took 15.21ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 103.3MB in the end (delta: 521.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:46:25,436 INFO L158 Benchmark]: RCFGBuilder took 237.10ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 91.2MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:46:25,437 INFO L158 Benchmark]: CodeCheck took 5189.47ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 88.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-12-05 22:46:25,437 INFO L158 Benchmark]: Witness Printer took 100.34ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 83.3MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:46:25,439 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 386 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 332 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 262 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 720 IncrementalHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 262 mSolverCounterUnsat, 248 mSDtfsCounter, 720 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1271 GetRequests, 1156 SyntacticMatches, 13 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3913 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 455 SizeOfPredicates, 2 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 36/49 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 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] int x1, x2; [L25] int y1, y2, y3; [L26] x1 = __VERIFIER_nondet_int() [L27] x2 = __VERIFIER_nondet_int() [L29] CALL assume_abort_if_not(x1 >= 0) VAL [\old(cond)=1, counter=0] [L13] COND FALSE !(!cond) [L29] RET assume_abort_if_not(x1 >= 0) VAL [counter=0, x1=3, x2=1] [L30] CALL assume_abort_if_not(x2 != 0) VAL [\old(cond)=1, counter=0] [L13] COND FALSE !(!cond) [L30] RET assume_abort_if_not(x2 != 0) VAL [counter=0, x1=3, x2=1] [L32] y1 = 0 [L33] y2 = 0 [L34] y3 = x1 VAL [counter=0, x1=3, x2=1, y1=0, y2=0, y3=3] [L36] EXPR counter++ VAL [counter=1, x1=3, x2=1, y1=0, y2=0, y3=3] [L36] COND TRUE counter++<2 [L37] CALL __VERIFIER_assert(y1*x2 + y2 + y3 == x1) VAL [\old(cond)=1, counter=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L37] RET __VERIFIER_assert(y1*x2 + y2 + y3 == x1) VAL [counter=1, x1=3, x2=1, y1=0, y2=0, y3=3] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=1, x1=3, x2=1, y1=1, y2=0, y3=2] [L36] EXPR counter++ VAL [counter=2, x1=3, x2=1, y1=1, y2=0, y3=2] [L36] COND TRUE counter++<2 [L37] CALL __VERIFIER_assert(y1*x2 + y2 + y3 == x1) VAL [\old(cond)=1, counter=2] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L37] RET __VERIFIER_assert(y1*x2 + y2 + y3 == x1) VAL [counter=2, x1=3, x2=1, y1=1, y2=0, y3=2] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=2, x1=3, x2=1, y1=2, y2=0, y3=1] [L36] EXPR counter++ VAL [counter=3, x1=3, x2=1, y1=2, y2=0, y3=1] [L36] COND FALSE !(counter++<2) [L50] CALL __VERIFIER_assert(y1*x2 + y2 == x1) VAL [\old(cond)=0, counter=3] [L16] COND TRUE !(cond) VAL [\old(cond)=0, counter=3] [L18] reach_error() VAL [\old(cond)=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.63ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 105.2MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.45ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 103.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.21ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 103.3MB in the end (delta: 521.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 237.10ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 91.2MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 5189.47ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 88.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Witness Printer took 100.34ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 83.3MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-05 22:46:25,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242141ea-c972-4317-80aa-74a68596b772/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE