./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-simple/nested_1b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_1b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de4c7bf005639409d0c5506b91694c0a93e2905c64b2cd28aafb6e9617d859e5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:52:08,376 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:52:08,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 16:52:08,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:52:08,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:52:08,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:52:08,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:52:08,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:52:08,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:52:08,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:52:08,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:52:08,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:52:08,505 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:52:08,505 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:52:08,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:52:08,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:52:08,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:52:08,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:52:08,506 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:52:08,506 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:52:08,506 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:52:08,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:52:08,507 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:52:08,507 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:52:08,507 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:52:08,507 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:52:08,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:52:08,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:52:08,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:52:08,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:52:08,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:52:08,508 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:52:08,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:52:08,508 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_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de4c7bf005639409d0c5506b91694c0a93e2905c64b2cd28aafb6e9617d859e5 [2024-11-13 16:52:08,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:52:08,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:52:08,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:52:08,848 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:52:08,849 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:52:08,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/loop-simple/nested_1b.c Unable to find full path for "g++" [2024-11-13 16:52:10,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:52:11,068 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:52:11,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/sv-benchmarks/c/loop-simple/nested_1b.c [2024-11-13 16:52:11,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/data/e7ac56fca/9c10741b1d83492a9d38ee0b44702508/FLAGf8af1c594 [2024-11-13 16:52:11,104 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/data/e7ac56fca/9c10741b1d83492a9d38ee0b44702508 [2024-11-13 16:52:11,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:52:11,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:52:11,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:52:11,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:52:11,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:52:11,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a9ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11, skipping insertion in model container [2024-11-13 16:52:11,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:52:11,277 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_54748e27-b995-4d86-a7f8-f7689773fc9b/sv-benchmarks/c/loop-simple/nested_1b.c[674,687] [2024-11-13 16:52:11,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:52:11,290 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:52:11,300 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_54748e27-b995-4d86-a7f8-f7689773fc9b/sv-benchmarks/c/loop-simple/nested_1b.c[674,687] [2024-11-13 16:52:11,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:52:11,317 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:52:11,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11 WrapperNode [2024-11-13 16:52:11,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:52:11,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:52:11,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:52:11,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:52:11,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,346 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-11-13 16:52:11,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:52:11,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:52:11,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:52:11,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:52:11,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:52:11,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:52:11,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:52:11,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:52:11,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:52:11,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:52:11,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:52:11,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:52:11,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:52:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:52:11,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:52:11,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:52:11,493 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:52:11,495 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:52:11,564 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-13 16:52:11,564 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:52:11,585 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:52:11,586 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:52:11,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:52:11 BoogieIcfgContainer [2024-11-13 16:52:11,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:52:11,587 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:52:11,587 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:52:11,597 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:52:11,597 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:52:11" (1/1) ... [2024-11-13 16:52:11,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:52:11,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-11-13 16:52:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-11-13 16:52:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 16:52:11,655 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:11,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:52:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:52:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:52:11,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:11,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-11-13 16:52:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-11-13 16:52:11,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 16:52:11,854 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:11,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:52:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:52:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:52:12,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-11-13 16:52:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-11-13 16:52:12,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 16:52:12,006 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:12,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:52:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:52:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:52:12,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:12,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2024-11-13 16:52:12,181 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2024-11-13 16:52:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 16:52:12,181 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:12,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:52:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:52:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:52:12,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2024-11-13 16:52:12,376 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2024-11-13 16:52:12,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 16:52:12,376 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:12,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:52:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:52:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:52:12,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:12,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-13 16:52:12,601 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-13 16:52:12,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:52:12,601 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:12,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:52:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:52:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:52:12,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:12,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-11-13 16:52:12,787 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-13 16:52:12,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 16:52:12,787 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:12,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:52:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:52:12,797 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:52:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:52:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:52:12,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:52:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:52:12,871 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2024-11-13 16:52:12,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:52:12 ImpRootNode [2024-11-13 16:52:12,894 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:52:12,895 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:52:12,895 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:52:12,895 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:52:12,896 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:52:11" (3/4) ... [2024-11-13 16:52:12,897 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 16:52:12,926 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 16:52:12,926 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:52:12,927 INFO L158 Benchmark]: Toolchain (without parser) took 1819.19ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 76.8MB in the end (delta: 16.4MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-11-13 16:52:12,927 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:52:12,928 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.87ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.6MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:52:12,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.13ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.5MB in the end (delta: 841.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:52:12,928 INFO L158 Benchmark]: Boogie Preprocessor took 16.83ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.9MB in the end (delta: 543.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:52:12,929 INFO L158 Benchmark]: RCFGBuilder took 222.05ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 71.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:52:12,929 INFO L158 Benchmark]: CodeCheck took 1307.39ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 78.6MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:52:12,929 INFO L158 Benchmark]: Witness Printer took 31.00ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:52:12,932 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 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 18 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 255 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 0/35 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 - CounterExampleResult [Line: 23]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int a = 6; [L19] a = 0 VAL [a=0] [L19] COND TRUE a < 6 [L19] ++a VAL [a=1] [L19] COND TRUE a < 6 [L19] ++a VAL [a=2] [L19] COND TRUE a < 6 [L19] ++a VAL [a=3] [L19] COND TRUE a < 6 [L19] ++a VAL [a=4] [L19] COND TRUE a < 6 [L19] ++a VAL [a=5] [L19] COND TRUE a < 6 [L19] ++a VAL [a=6] [L19] COND FALSE !(a < 6) VAL [a=6] [L22] COND TRUE a == 6 [L23] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.87ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.6MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.13ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.5MB in the end (delta: 841.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.83ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.9MB in the end (delta: 543.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 222.05ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 71.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1307.39ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 78.6MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 31.00ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 16:52:12,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54748e27-b995-4d86-a7f8-f7689773fc9b/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE