./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.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_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/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_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/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_b999432c-c81d-45d5-a871-9a0ca6a841e8/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 bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:02:09,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:02:09,181 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:02:09,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:02:09,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:02:09,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:02:09,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:02:09,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:02:09,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:02:09,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:02:09,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:02:09,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:02:09,208 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:02:09,208 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:02:09,208 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:02:09,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:02:09,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:02:09,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:02:09,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:02:09,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:02:09,208 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:02:09,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:02:09,208 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_b999432c-c81d-45d5-a871-9a0ca6a841e8/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 -> bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 [2024-12-06 03:02:09,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:02:09,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:02:09,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:02:09,460 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:02:09,460 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:02:09,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2024-12-06 03:02:12,135 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/data/981e63d41/c33f3344c6c14446b6aadd91a5ab9273/FLAGe3779153e [2024-12-06 03:02:12,310 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:02:12,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2024-12-06 03:02:12,316 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/data/981e63d41/c33f3344c6c14446b6aadd91a5ab9273/FLAGe3779153e [2024-12-06 03:02:12,330 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/data/981e63d41/c33f3344c6c14446b6aadd91a5ab9273 [2024-12-06 03:02:12,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:02:12,334 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:02:12,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:02:12,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:02:12,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:02:12,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a96af3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12, skipping insertion in model container [2024-12-06 03:02:12,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:02:12,484 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_b999432c-c81d-45d5-a871-9a0ca6a841e8/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2024-12-06 03:02:12,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:02:12,494 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:02:12,508 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_b999432c-c81d-45d5-a871-9a0ca6a841e8/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2024-12-06 03:02:12,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:02:12,521 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:02:12,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12 WrapperNode [2024-12-06 03:02:12,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:02:12,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:02:12,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:02:12,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:02:12,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,549 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-12-06 03:02:12,549 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:02:12,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:02:12,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:02:12,550 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:02:12,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,559 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:02:12,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:02:12,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:02:12,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:02:12,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:02:12,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:02:12,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:02:12,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:02:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:02:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:02:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2024-12-06 03:02:12,625 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2024-12-06 03:02:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:02:12,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:02:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-12-06 03:02:12,625 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-12-06 03:02:12,679 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:02:12,681 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:02:12,793 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-06 03:02:12,793 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:02:12,831 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:02:12,831 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:02:12,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:02:12 BoogieIcfgContainer [2024-12-06 03:02:12,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:02:12,832 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:02:12,832 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:02:12,841 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:02:12,842 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:02:12" (1/1) ... [2024-12-06 03:02:12,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:02:12,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:02:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2024-12-06 03:02:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-12-06 03:02:12,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 03:02:12,905 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:02:12,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:02:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:02:13,127 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 03:02:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:02:13,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-12-06 03:02:13,204 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-12-06 03:02:13,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 03:02:13,204 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:02:13,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:02:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:02:13,463 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 03:02:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:02:13,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2024-12-06 03:02:13,735 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-12-06 03:02:13,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 03:02:13,736 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:02:13,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:02:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:02:14,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:02:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:02:14,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 39 states and 46 transitions. [2024-12-06 03:02:14,568 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2024-12-06 03:02:14,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 03:02:14,569 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:02:14,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:02:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:02:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-06 03:02:15,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:02:15,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 47 states and 56 transitions. [2024-12-06 03:02:15,630 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2024-12-06 03:02:15,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-06 03:02:15,631 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:02:15,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:02:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:02:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-06 03:02:16,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:02:16,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 51 states and 62 transitions. [2024-12-06 03:02:16,422 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2024-12-06 03:02:16,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-06 03:02:16,422 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:02:16,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:02:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:02:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-06 03:02:17,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:02:17,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 49 states and 60 transitions. [2024-12-06 03:02:17,261 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2024-12-06 03:02:17,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 03:02:17,262 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-12-06 03:02:17,269 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 03:02:17,388 INFO L77 FloydHoareUtils]: At program point L17(line 17) the Hoare annotation is: true [2024-12-06 03:02:17,388 INFO L77 FloydHoareUtils]: At program point L18-1(line 18) the Hoare annotation is: true [2024-12-06 03:02:17,388 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 16 21) the Hoare annotation is: true [2024-12-06 03:02:17,388 INFO L77 FloydHoareUtils]: At program point id2EXIT(lines 16 21) the Hoare annotation is: true [2024-12-06 03:02:17,388 INFO L77 FloydHoareUtils]: At program point id2FINAL(lines 16 21) the Hoare annotation is: true [2024-12-06 03:02:17,388 INFO L77 FloydHoareUtils]: At program point L18(line 18) the Hoare annotation is: true [2024-12-06 03:02:17,388 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 03:02:17,388 INFO L75 FloydHoareUtils]: For program point L27(line 27) no Hoare annotation was computed. [2024-12-06 03:02:17,388 INFO L77 FloydHoareUtils]: At program point L26(lines 26 28) the Hoare annotation is: (< (mod |ULTIMATE.start_main_~result~0#1| 4294967296) 4) [2024-12-06 03:02:17,389 INFO L77 FloydHoareUtils]: At program point L25(line 25) the Hoare annotation is: true [2024-12-06 03:02:17,389 INFO L77 FloydHoareUtils]: At program point L25-1(line 25) the Hoare annotation is: (< (mod |ULTIMATE.start_main_#t~ret7#1| 4294967296) 4) [2024-12-06 03:02:17,389 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) no Hoare annotation was computed. [2024-12-06 03:02:17,389 INFO L77 FloydHoareUtils]: At program point L23(lines 23 29) the Hoare annotation is: true [2024-12-06 03:02:17,389 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 03:02:17,389 INFO L77 FloydHoareUtils]: At program point idFINAL(lines 9 14) the Hoare annotation is: (< (mod |id_#res| 4294967296) 4) [2024-12-06 03:02:17,389 INFO L77 FloydHoareUtils]: At program point L11(line 11) the Hoare annotation is: true [2024-12-06 03:02:17,389 INFO L77 FloydHoareUtils]: At program point idEXIT(lines 9 14) the Hoare annotation is: (< (mod |id_#res| 4294967296) 4) [2024-12-06 03:02:17,389 INFO L77 FloydHoareUtils]: At program point L10(line 10) the Hoare annotation is: true [2024-12-06 03:02:17,389 INFO L77 FloydHoareUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2024-12-06 03:02:17,389 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 9 14) the Hoare annotation is: true [2024-12-06 03:02:17,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:02:17 ImpRootNode [2024-12-06 03:02:17,401 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:02:17,402 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:02:17,402 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:02:17,402 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:02:17,403 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:02:12" (3/4) ... [2024-12-06 03:02:17,404 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 03:02:17,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2024-12-06 03:02:17,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-12-06 03:02:17,409 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-06 03:02:17,409 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-06 03:02:17,409 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 03:02:17,409 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 03:02:17,470 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:02:17,470 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:02:17,470 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:02:17,471 INFO L158 Benchmark]: Toolchain (without parser) took 5137.15ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 92.4MB in the beginning and 133.7MB in the end (delta: -41.2MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-12-06 03:02:17,471 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:02:17,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.87ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.4MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:02:17,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.93ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.4MB in the end (delta: 992.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:02:17,472 INFO L158 Benchmark]: Boogie Preprocessor took 14.65ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.8MB in the end (delta: 662.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:02:17,472 INFO L158 Benchmark]: RCFGBuilder took 266.77ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 68.6MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:02:17,473 INFO L158 Benchmark]: CodeCheck took 4569.49ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 68.6MB in the beginning and 138.4MB in the end (delta: -69.8MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-12-06 03:02:17,473 INFO L158 Benchmark]: Witness Printer took 68.02ms. Allocated memory is still 192.9MB. Free memory was 138.4MB in the beginning and 133.7MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:02:17,475 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 243 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 222 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 446 IncrementalHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 222 mSolverCounterUnsat, 133 mSDtfsCounter, 446 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 974 GetRequests, 881 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2589 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 286 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 49/66 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 - ProcedureContractResult [Line: 9]: Procedure Contract for id Derived contract for procedure id. Ensures: (\result < 4) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.87ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.4MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.93ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.4MB in the end (delta: 992.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.65ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.8MB in the end (delta: 662.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 266.77ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 68.6MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 4569.49ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 68.6MB in the beginning and 138.4MB in the end (delta: -69.8MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Witness Printer took 68.02ms. Allocated memory is still 192.9MB. Free memory was 138.4MB in the beginning and 133.7MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 03:02:17,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b999432c-c81d-45d5-a871-9a0ca6a841e8/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