./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec.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_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/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_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/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_249ac292-1300-4a5c-bd37-7fce2cea2644/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 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:31:22,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:31:22,466 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 01:31:22,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:31:22,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:31:22,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:31:22,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:31:22,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:31:22,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:31:22,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:31:22,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:31:22,490 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:31:22,491 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:31:22,491 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:31:22,491 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:31:22,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:31:22,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:31:22,491 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:31:22,491 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:31:22,491 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:31:22,491 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:31:22,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:31:22,491 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_249ac292-1300-4a5c-bd37-7fce2cea2644/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 -> 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a [2024-12-06 01:31:22,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:31:22,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:31:22,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:31:22,708 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:31:22,709 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:31:22,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/verifythis/elimination_max_rec.c [2024-12-06 01:31:25,283 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/data/ed52a6401/cef63dbbb762475b980547699e88b350/FLAGe0a8f0719 [2024-12-06 01:31:25,474 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:31:25,475 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/sv-benchmarks/c/verifythis/elimination_max_rec.c [2024-12-06 01:31:25,482 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/data/ed52a6401/cef63dbbb762475b980547699e88b350/FLAGe0a8f0719 [2024-12-06 01:31:25,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/data/ed52a6401/cef63dbbb762475b980547699e88b350 [2024-12-06 01:31:25,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:31:25,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:31:25,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:31:25,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:31:25,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:31:25,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:31:25" (1/1) ... [2024-12-06 01:31:25,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf02aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:25, skipping insertion in model container [2024-12-06 01:31:25,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:31:25" (1/1) ... [2024-12-06 01:31:25,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:31:25,982 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_249ac292-1300-4a5c-bd37-7fce2cea2644/sv-benchmarks/c/verifythis/elimination_max_rec.c[493,506] [2024-12-06 01:31:25,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:31:26,008 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:31:26,018 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_249ac292-1300-4a5c-bd37-7fce2cea2644/sv-benchmarks/c/verifythis/elimination_max_rec.c[493,506] [2024-12-06 01:31:26,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:31:26,036 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:31:26,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26 WrapperNode [2024-12-06 01:31:26,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:31:26,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:31:26,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:31:26,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:31:26,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,057 INFO L138 Inliner]: procedures = 19, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2024-12-06 01:31:26,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:31:26,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:31:26,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:31:26,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:31:26,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,070 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,071 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:31:26,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:31:26,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:31:26,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:31:26,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:31:26,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:31:26,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:31:26,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:31:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:31:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 01:31:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 01:31:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:31:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure check [2024-12-06 01:31:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2024-12-06 01:31:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 01:31:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:31:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:31:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 01:31:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 01:31:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 01:31:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 01:31:26,175 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:31:26,176 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:31:26,307 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-06 01:31:26,307 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:31:26,350 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:31:26,351 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:31:26,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:31:26 BoogieIcfgContainer [2024-12-06 01:31:26,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:31:26,352 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:31:26,352 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:31:26,362 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:31:26,362 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:31:26" (1/1) ... [2024-12-06 01:31:26,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:31:26,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:31:26,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2024-12-06 01:31:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-12-06 01:31:26,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 01:31:26,429 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:31:26,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:31:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:31:26,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:31:26,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:31:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2024-12-06 01:31:26,926 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-12-06 01:31:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 01:31:26,927 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:31:26,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:31:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:31:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:31:27,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:31:27,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 39 states and 52 transitions. [2024-12-06 01:31:27,875 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2024-12-06 01:31:27,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 01:31:27,876 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:31:27,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:31:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:31:28,141 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 01:31:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:31:28,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 47 states and 68 transitions. [2024-12-06 01:31:28,587 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-12-06 01:31:28,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 01:31:28,588 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:31:28,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:31:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:31:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 01:31:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:31:29,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 51 states and 75 transitions. [2024-12-06 01:31:29,634 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2024-12-06 01:31:29,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-06 01:31:29,635 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:31:29,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:31:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:31:29,796 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-06 01:31:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:31:29,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 28 states and 33 transitions. [2024-12-06 01:31:29,982 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-12-06 01:31:29,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 01:31:29,983 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-12-06 01:31:29,990 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 01:31:30,046 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 01:31:30,046 INFO L77 FloydHoareUtils]: At program point L46(line 46) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) [2024-12-06 01:31:30,046 INFO L77 FloydHoareUtils]: At program point L46-1(line 46) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point L44(line 44) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point L44-1(line 44) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 7 9) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point L33(line 33) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point L33-1(line 33) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point L28(line 28) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point L25-2(lines 25 26) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point L20(line 20) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point L20-1(line 20) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point checkEXIT(lines 16 39) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point L17(line 17) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 16 39) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point checkFINAL(lines 16 39) the Hoare annotation is: true [2024-12-06 01:31:30,047 INFO L77 FloydHoareUtils]: At program point L36(line 36) the Hoare annotation is: true [2024-12-06 01:31:30,048 INFO L77 FloydHoareUtils]: At program point L36-1(line 36) the Hoare annotation is: true [2024-12-06 01:31:30,048 INFO L77 FloydHoareUtils]: At program point L11(line 11) the Hoare annotation is: true [2024-12-06 01:31:30,048 INFO L77 FloydHoareUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2024-12-06 01:31:30,048 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 10 12) the Hoare annotation is: true [2024-12-06 01:31:30,048 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2024-12-06 01:31:30,048 INFO L77 FloydHoareUtils]: At program point L11-3(lines 10 12) the Hoare annotation is: true [2024-12-06 01:31:30,048 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: true [2024-12-06 01:31:30,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:31:30 ImpRootNode [2024-12-06 01:31:30,061 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:31:30,061 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:31:30,061 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:31:30,061 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:31:30,062 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:31:26" (3/4) ... [2024-12-06 01:31:30,064 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 01:31:30,068 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-06 01:31:30,068 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2024-12-06 01:31:30,068 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-06 01:31:30,071 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-12-06 01:31:30,071 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-06 01:31:30,072 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-06 01:31:30,072 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 01:31:30,141 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:31:30,141 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:31:30,141 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:31:30,142 INFO L158 Benchmark]: Toolchain (without parser) took 4277.26ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 41.3MB in the end (delta: 75.3MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. [2024-12-06 01:31:30,142 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:31:30,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.13ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 105.3MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:31:30,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.48ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:31:30,143 INFO L158 Benchmark]: Boogie Preprocessor took 17.07ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 103.1MB in the end (delta: 705.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:31:30,143 INFO L158 Benchmark]: RCFGBuilder took 275.73ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 88.1MB in the end (delta: 15.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:31:30,144 INFO L158 Benchmark]: CodeCheck took 3708.63ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 46.8MB in the end (delta: 41.4MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2024-12-06 01:31:30,144 INFO L158 Benchmark]: Witness Printer took 80.07ms. Allocated memory is still 142.6MB. Free memory was 46.8MB in the beginning and 41.3MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:31:30,146 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 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 129 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 157 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 501 IncrementalHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 157 mSolverCounterUnsat, 123 mSDtfsCounter, 501 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1020 GetRequests, 947 SyntacticMatches, 15 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 712 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 29/49 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 - PositiveResult [Line: 11]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.13ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 105.3MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.48ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.07ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 103.1MB in the end (delta: 705.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 275.73ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 88.1MB in the end (delta: 15.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 3708.63ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 46.8MB in the end (delta: 41.4MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * Witness Printer took 80.07ms. Allocated memory is still 142.6MB. Free memory was 46.8MB in the beginning and 41.3MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 01:31:30,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_249ac292-1300-4a5c-bd37-7fce2cea2644/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 Result: TRUE