./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_loop-invariants/recursified_eq1.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_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/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_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_loop-invariants/recursified_eq1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/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_be80d6c4-ac6a-4030-b0fe-9349c202179c/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 ccc7a7f0e01a15625c463b7f9ff86edec643fb5abfd6d827cfe7837ab94b8fae --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:21:39,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:21:39,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 01:21:39,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:21:39,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:21:39,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:21:39,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:21:39,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:21:39,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:21:39,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:21:39,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:21:39,133 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:21:39,134 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:21:39,134 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:21:39,134 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:21:39,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:21:39,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:21:39,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:21:39,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:21:39,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:21:39,134 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:21:39,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:21:39,134 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_be80d6c4-ac6a-4030-b0fe-9349c202179c/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 -> ccc7a7f0e01a15625c463b7f9ff86edec643fb5abfd6d827cfe7837ab94b8fae [2024-12-06 01:21:39,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:21:39,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:21:39,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:21:39,379 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:21:39,379 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:21:39,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursified_loop-invariants/recursified_eq1.c [2024-12-06 01:21:41,951 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/data/e09b3ff8b/baf535e9d43c4bb09a55d9919cc92e52/FLAG1b5aa054f [2024-12-06 01:21:42,133 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:21:42,133 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/sv-benchmarks/c/recursified_loop-invariants/recursified_eq1.c [2024-12-06 01:21:42,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/data/e09b3ff8b/baf535e9d43c4bb09a55d9919cc92e52/FLAG1b5aa054f [2024-12-06 01:21:42,520 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/data/e09b3ff8b/baf535e9d43c4bb09a55d9919cc92e52 [2024-12-06 01:21:42,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:21:42,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:21:42,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:21:42,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:21:42,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:21:42,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f9b456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42, skipping insertion in model container [2024-12-06 01:21:42,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:21:42,645 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_be80d6c4-ac6a-4030-b0fe-9349c202179c/sv-benchmarks/c/recursified_loop-invariants/recursified_eq1.c[973,986] [2024-12-06 01:21:42,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:21:42,667 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:21:42,677 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_be80d6c4-ac6a-4030-b0fe-9349c202179c/sv-benchmarks/c/recursified_loop-invariants/recursified_eq1.c[973,986] [2024-12-06 01:21:42,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:21:42,697 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:21:42,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42 WrapperNode [2024-12-06 01:21:42,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:21:42,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:21:42,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:21:42,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:21:42,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,711 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,727 INFO L138 Inliner]: procedures = 15, calls = 46, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-12-06 01:21:42,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:21:42,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:21:42,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:21:42,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:21:42,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,741 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:21:42,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:21:42,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:21:42,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:21:42,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:21:42" (1/1) ... [2024-12-06 01:21:42,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:21:42,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:21:42,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:21:42,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:21:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:21:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:21:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 01:21:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_16_to_20_0 [2024-12-06 01:21:42,807 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_16_to_20_0 [2024-12-06 01:21:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 01:21:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:21:42,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:21:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 01:21:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 01:21:42,867 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:21:42,868 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:21:42,992 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-06 01:21:42,992 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:21:43,047 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:21:43,047 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:21:43,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:21:43 BoogieIcfgContainer [2024-12-06 01:21:43,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:21:43,048 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:21:43,048 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:21:43,055 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:21:43,055 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:21:43" (1/1) ... [2024-12-06 01:21:43,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:21:43,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:21:43,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2024-12-06 01:21:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2024-12-06 01:21:43,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:21:43,111 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:21:43,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:21:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:21:43,690 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 01:21:43,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:21:43,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 22 transitions. [2024-12-06 01:21:43,813 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2024-12-06 01:21:43,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 01:21:43,813 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:21:43,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:21:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:21:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:21:48,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:21:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 20 states and 30 transitions. [2024-12-06 01:21:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2024-12-06 01:21:48,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 01:21:48,840 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:21:48,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:21:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:21:53,412 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 01:21:58,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:21:58,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 17 states and 32 transitions. [2024-12-06 01:21:58,905 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 32 transitions. [2024-12-06 01:21:58,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 01:21:58,905 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2024-12-06 01:21:58,914 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 01:21:59,223 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 01:21:59,223 INFO L77 FloydHoareUtils]: At program point L25(lines 25 29) the Hoare annotation is: true [2024-12-06 01:21:59,223 INFO L77 FloydHoareUtils]: At program point L23(lines 23 34) the Hoare annotation is: true [2024-12-06 01:21:59,223 INFO L77 FloydHoareUtils]: At program point L23-2(lines 21 36) the Hoare annotation is: true [2024-12-06 01:21:59,223 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 01:21:59,224 INFO L77 FloydHoareUtils]: At program point L67(line 67) the Hoare annotation is: (and (not (= |ULTIMATE.start_main_~#x~0#1.base| |ULTIMATE.start_main_~#w~0#1.base|)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#w~0#1.base|) |ULTIMATE.start_main_~#w~0#1.offset|) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) |ULTIMATE.start_main_~#x~0#1.offset|)) (not (= |ULTIMATE.start_main_~#y~0#1.base| |ULTIMATE.start_main_~#x~0#1.base|)) (not (= |ULTIMATE.start_main_~#z~0#1.base| |ULTIMATE.start_main_~#w~0#1.base|)) (= |ULTIMATE.start_main_~#w~0#1.offset| |ULTIMATE.start_main_~#z~0#1.offset|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#z~0#1.base|) |ULTIMATE.start_main_~#z~0#1.offset|) (select (select |#memory_int| |ULTIMATE.start_main_~#y~0#1.base|) |ULTIMATE.start_main_~#y~0#1.offset|)) (not (= |ULTIMATE.start_main_~#y~0#1.base| |ULTIMATE.start_main_~#w~0#1.base|)) (not (= |ULTIMATE.start_main_~#z~0#1.base| |ULTIMATE.start_main_~#x~0#1.base|)) (not (= |ULTIMATE.start_main_~#z~0#1.base| |ULTIMATE.start_main_~#y~0#1.base|))) [2024-12-06 01:21:59,224 INFO L77 FloydHoareUtils]: At program point L67-1(line 67) the Hoare annotation is: true [2024-12-06 01:21:59,224 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) the Hoare annotation is: true [2024-12-06 01:21:59,224 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 38 59) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2024-12-06 01:21:59,225 INFO L77 FloydHoareUtils]: At program point L43-2(lines 43 52) the Hoare annotation is: (let ((.cse8 (select |old(#memory_int)| func_to_recursive_line_16_to_20_0_~w.base))) (let ((.cse6 (= |func_to_recursive_line_16_to_20_0_#in~w.base| func_to_recursive_line_16_to_20_0_~w.base)) (.cse4 (= |func_to_recursive_line_16_to_20_0_#in~x.offset| func_to_recursive_line_16_to_20_0_~x.offset)) (.cse17 (select .cse8 func_to_recursive_line_16_to_20_0_~w.offset)) (.cse18 (select |old(#memory_int)| func_to_recursive_line_16_to_20_0_~x.base)) (.cse13 (= func_to_recursive_line_16_to_20_0_~w.offset |func_to_recursive_line_16_to_20_0_#in~w.offset|)) (.cse26 (select |old(#memory_int)| func_to_recursive_line_16_to_20_0_~z.base)) (.cse25 (select |#memory_int| func_to_recursive_line_16_to_20_0_~z.base)) (.cse24 (select (select |#memory_int| func_to_recursive_line_16_to_20_0_~y.base) func_to_recursive_line_16_to_20_0_~y.offset)) (.cse22 (select (select |old(#memory_int)| func_to_recursive_line_16_to_20_0_~y.base) func_to_recursive_line_16_to_20_0_~y.offset)) (.cse7 (select |#memory_int| func_to_recursive_line_16_to_20_0_~w.base))) (let ((.cse1 (= func_to_recursive_line_16_to_20_0_~y.base func_to_recursive_line_16_to_20_0_~z.base)) (.cse19 (= func_to_recursive_line_16_to_20_0_~w.base func_to_recursive_line_16_to_20_0_~x.base)) (.cse2 (= func_to_recursive_line_16_to_20_0_~x.base func_to_recursive_line_16_to_20_0_~z.base)) (.cse12 (select .cse7 func_to_recursive_line_16_to_20_0_~w.offset)) (.cse5 (= .cse24 .cse22)) (.cse9 (= .cse26 .cse25)) (.cse16 (and .cse6 .cse4 (not (= .cse17 (select .cse18 func_to_recursive_line_16_to_20_0_~x.offset))) .cse13)) (.cse3 (= func_to_recursive_line_16_to_20_0_~w.base func_to_recursive_line_16_to_20_0_~z.base)) (.cse15 (= func_to_recursive_line_16_to_20_0_~w.base func_to_recursive_line_16_to_20_0_~y.base)) (.cse0 (= |func_to_recursive_line_16_to_20_0_#in~x.base| func_to_recursive_line_16_to_20_0_~x.base)) (.cse14 (= func_to_recursive_line_16_to_20_0_~x.base func_to_recursive_line_16_to_20_0_~y.base))) (and (or (and .cse0 (let ((.cse11 (select |#memory_int| func_to_recursive_line_16_to_20_0_~x.base))) (let ((.cse10 (= .cse18 .cse11))) (or .cse1 .cse2 .cse3 (and .cse4 (or (and .cse5 .cse6 (= .cse7 .cse8) .cse9 .cse10) (and .cse5 (= (select .cse11 func_to_recursive_line_16_to_20_0_~x.offset) .cse12) .cse6 .cse13 .cse9))) .cse14 .cse15 .cse16 (and (= .cse17 .cse12) .cse6 .cse13 .cse10))))) .cse19) (or (= |func_to_recursive_line_16_to_20_0_#in~w.base| |func_to_recursive_line_16_to_20_0_#in~x.base|) (not .cse19)) (or .cse1 (and (or (= |func_to_recursive_line_16_to_20_0_#in~x.base| |func_to_recursive_line_16_to_20_0_#in~y.base|) (not .cse14)) (or (and (or .cse19 .cse2 (and (or (and (let ((.cse20 (= |func_to_recursive_line_16_to_20_0_#in~z.offset| func_to_recursive_line_16_to_20_0_~z.offset)) (.cse21 (= func_to_recursive_line_16_to_20_0_~y.offset |func_to_recursive_line_16_to_20_0_#in~y.offset|))) (or (let ((.cse23 (select .cse25 func_to_recursive_line_16_to_20_0_~z.offset))) (and .cse20 .cse4 .cse21 .cse13 (or (not (= .cse17 .cse22)) (< .cse23 .cse12)) (= .cse24 .cse23))) (and (not (= (select .cse26 func_to_recursive_line_16_to_20_0_~z.offset) .cse22)) .cse20 .cse21) (and .cse5 .cse20 .cse4 .cse21 .cse13 .cse9) .cse3 .cse16)) (or (not .cse3) (= |func_to_recursive_line_16_to_20_0_#in~w.base| |func_to_recursive_line_16_to_20_0_#in~z.base|))) .cse15) (or (= |func_to_recursive_line_16_to_20_0_#in~w.base| |func_to_recursive_line_16_to_20_0_#in~y.base|) (not .cse15)))) .cse0) .cse14))) (= |func_to_recursive_line_16_to_20_0_#in~y.base| func_to_recursive_line_16_to_20_0_~y.base) (= |func_to_recursive_line_16_to_20_0_#in~z.base| func_to_recursive_line_16_to_20_0_~z.base))))) [2024-12-06 01:21:59,225 INFO L77 FloydHoareUtils]: At program point L40(lines 40 58) the Hoare annotation is: (let ((.cse0 (= func_to_recursive_line_16_to_20_0_~x.base func_to_recursive_line_16_to_20_0_~y.base)) (.cse2 (= func_to_recursive_line_16_to_20_0_~w.base func_to_recursive_line_16_to_20_0_~x.base)) (.cse5 (= func_to_recursive_line_16_to_20_0_~x.base func_to_recursive_line_16_to_20_0_~z.base)) (.cse8 (= |func_to_recursive_line_16_to_20_0_#in~w.base| |func_to_recursive_line_16_to_20_0_#in~x.base|)) (.cse1 (= func_to_recursive_line_16_to_20_0_~y.base func_to_recursive_line_16_to_20_0_~z.base)) (.cse3 (= |func_to_recursive_line_16_to_20_0_#in~x.offset| func_to_recursive_line_16_to_20_0_~x.offset)) (.cse4 (= func_to_recursive_line_16_to_20_0_~w.offset |func_to_recursive_line_16_to_20_0_#in~w.offset|))) (and (or (= |func_to_recursive_line_16_to_20_0_#in~x.base| |func_to_recursive_line_16_to_20_0_#in~y.base|) (not .cse0)) (= |#memory_int| |old(#memory_int)|) (or .cse1 .cse2 (and .cse3 .cse4) .cse5 .cse0 (let ((.cse6 (select |#memory_int| func_to_recursive_line_16_to_20_0_~w.base))) (let ((.cse7 (select .cse6 func_to_recursive_line_16_to_20_0_~w.offset))) (= (select (select (store |#memory_int| func_to_recursive_line_16_to_20_0_~w.base (store .cse6 func_to_recursive_line_16_to_20_0_~w.offset (+ 1 .cse7))) func_to_recursive_line_16_to_20_0_~x.base) func_to_recursive_line_16_to_20_0_~x.offset) .cse7)))) (or .cse8 (not .cse2)) (= |func_to_recursive_line_16_to_20_0_#in~y.base| func_to_recursive_line_16_to_20_0_~y.base) (= |func_to_recursive_line_16_to_20_0_#in~z.base| func_to_recursive_line_16_to_20_0_~z.base) (or .cse0 (and (or .cse2 .cse5 (let ((.cse10 (= func_to_recursive_line_16_to_20_0_~w.base func_to_recursive_line_16_to_20_0_~y.base))) (and (not .cse8) (or (let ((.cse9 (= func_to_recursive_line_16_to_20_0_~w.base func_to_recursive_line_16_to_20_0_~z.base))) (and (or .cse1 .cse9 (and (= |func_to_recursive_line_16_to_20_0_#in~w.base| func_to_recursive_line_16_to_20_0_~w.base) (= |func_to_recursive_line_16_to_20_0_#in~z.offset| func_to_recursive_line_16_to_20_0_~z.offset) .cse3 (= func_to_recursive_line_16_to_20_0_~y.offset |func_to_recursive_line_16_to_20_0_#in~y.offset|) .cse4)) (or (not .cse9) (= |func_to_recursive_line_16_to_20_0_#in~w.base| |func_to_recursive_line_16_to_20_0_#in~z.base|)))) .cse10) (or (= |func_to_recursive_line_16_to_20_0_#in~w.base| |func_to_recursive_line_16_to_20_0_#in~y.base|) (not .cse10))))) (= |func_to_recursive_line_16_to_20_0_#in~x.base| func_to_recursive_line_16_to_20_0_~x.base))))) [2024-12-06 01:21:59,225 INFO L77 FloydHoareUtils]: At program point L40-1(lines 38 59) the Hoare annotation is: true [2024-12-06 01:21:59,226 INFO L77 FloydHoareUtils]: At program point func_to_recursive_line_16_to_20_0EXIT(lines 38 59) the Hoare annotation is: true [2024-12-06 01:21:59,240 WARN L162 FloydHoareUtils]: Requires clause for func_to_recursive_line_16_to_20_0 contained old-variable. Original clause: (= |#memory_int| |old(#memory_int)|) Eliminated clause: true [2024-12-06 01:21:59,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:21:59 ImpRootNode [2024-12-06 01:21:59,244 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:21:59,245 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:21:59,245 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:21:59,245 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:21:59,246 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:21:43" (3/4) ... [2024-12-06 01:21:59,248 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 01:21:59,251 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_16_to_20_0 [2024-12-06 01:21:59,254 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-12-06 01:21:59,255 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-12-06 01:21:59,255 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-06 01:21:59,255 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 01:21:59,255 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 01:21:59,307 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:21:59,308 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:21:59,308 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:21:59,308 INFO L158 Benchmark]: Toolchain (without parser) took 16785.79ms. Allocated memory was 142.6MB in the beginning and 469.8MB in the end (delta: 327.2MB). Free memory was 116.5MB in the beginning and 177.2MB in the end (delta: -60.7MB). Peak memory consumption was 266.0MB. Max. memory is 16.1GB. [2024-12-06 01:21:59,309 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:21:59,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.53ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 105.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:21:59,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.02ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:21:59,309 INFO L158 Benchmark]: Boogie Preprocessor took 19.71ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 103.2MB in the end (delta: 859.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:21:59,310 INFO L158 Benchmark]: RCFGBuilder took 299.03ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 87.2MB in the end (delta: 16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:21:59,310 INFO L158 Benchmark]: CodeCheck took 16196.46ms. Allocated memory was 142.6MB in the beginning and 469.8MB in the end (delta: 327.2MB). Free memory was 87.2MB in the beginning and 181.4MB in the end (delta: -94.3MB). Peak memory consumption was 232.4MB. Max. memory is 16.1GB. [2024-12-06 01:21:59,310 INFO L158 Benchmark]: Witness Printer took 62.68ms. Allocated memory is still 469.8MB. Free memory was 181.4MB in the beginning and 177.2MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:21:59,312 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 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 33 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 581 GetRequests, 518 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1267 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 1973 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 4/17 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: 27]: 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 0.25ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.53ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 105.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.02ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.71ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 103.2MB in the end (delta: 859.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 299.03ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 87.2MB in the end (delta: 16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 16196.46ms. Allocated memory was 142.6MB in the beginning and 469.8MB in the end (delta: 327.2MB). Free memory was 87.2MB in the beginning and 181.4MB in the end (delta: -94.3MB). Peak memory consumption was 232.4MB. Max. memory is 16.1GB. * Witness Printer took 62.68ms. Allocated memory is still 469.8MB. Free memory was 181.4MB in the beginning and 177.2MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 01:21:59,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be80d6c4-ac6a-4030-b0fe-9349c202179c/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