./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i5_o5-2.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_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/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_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i5_o5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/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_7122acdf-3da3-4f5d-8705-f56b0091cccd/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 1be5a7d97aa41e02c549ddce0b54861696e25bfa9b91d41dbf151eb81f7686c7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:55:53,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:55:53,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 21:55:53,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:55:53,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:55:53,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:55:53,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:55:53,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:55:53,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:55:53,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:55:53,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:55:53,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:55:53,945 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:55:53,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:55:53,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:55:53,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:55:53,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:55:53,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:55:53,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:55:53,946 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:55:53,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:55:53,946 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:55:53,946 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:55:53,947 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:55:53,947 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:55:53,947 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:55:53,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:55:53,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:55:53,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:55:53,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:55:53,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:55:53,947 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:55:53,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:55:53,947 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_7122acdf-3da3-4f5d-8705-f56b0091cccd/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 -> 1be5a7d97aa41e02c549ddce0b54861696e25bfa9b91d41dbf151eb81f7686c7 [2024-12-05 21:55:54,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:55:54,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:55:54,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:55:54,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:55:54,204 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:55:54,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive-simple/id_i5_o5-2.c [2024-12-05 21:55:56,827 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/data/582d21aed/77d6c20f9c3d4e45ab9c5332ed4c29e8/FLAG217301662 [2024-12-05 21:55:57,011 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:55:57,012 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/sv-benchmarks/c/recursive-simple/id_i5_o5-2.c [2024-12-05 21:55:57,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/data/582d21aed/77d6c20f9c3d4e45ab9c5332ed4c29e8/FLAG217301662 [2024-12-05 21:55:57,417 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/data/582d21aed/77d6c20f9c3d4e45ab9c5332ed4c29e8 [2024-12-05 21:55:57,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:55:57,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:55:57,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:55:57,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:55:57,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:55:57,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dcc4c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57, skipping insertion in model container [2024-12-05 21:55:57,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:55:57,556 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_7122acdf-3da3-4f5d-8705-f56b0091cccd/sv-benchmarks/c/recursive-simple/id_i5_o5-2.c[450,463] [2024-12-05 21:55:57,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:55:57,569 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:55:57,579 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_7122acdf-3da3-4f5d-8705-f56b0091cccd/sv-benchmarks/c/recursive-simple/id_i5_o5-2.c[450,463] [2024-12-05 21:55:57,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:55:57,592 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:55:57,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57 WrapperNode [2024-12-05 21:55:57,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:55:57,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:55:57,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:55:57,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:55:57,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,617 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-12-05 21:55:57,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:55:57,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:55:57,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:55:57,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:55:57,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,628 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:55:57,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:55:57,633 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:55:57,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:55:57,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:55:57,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:55:57,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:55:57,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:55:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:55:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:55:57,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:55:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:55:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-12-05 21:55:57,693 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-12-05 21:55:57,745 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:55:57,746 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:55:57,832 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-05 21:55:57,833 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:55:57,854 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:55:57,854 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 21:55:57,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:55:57 BoogieIcfgContainer [2024-12-05 21:55:57,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:55:57,855 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:55:57,856 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:55:57,864 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:55:57,865 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:55:57" (1/1) ... [2024-12-05 21:55:57,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:55:57,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:57,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-05 21:55:57,921 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-05 21:55:57,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 21:55:57,925 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:57,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:55:58,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:58,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2024-12-05 21:55:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-12-05 21:55:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-05 21:55:58,223 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:58,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:58,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 21:55:58,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2024-12-05 21:55:58,471 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-12-05 21:55:58,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-05 21:55:58,472 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:58,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:58,587 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-05 21:55:58,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:58,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2024-12-05 21:55:58,690 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-12-05 21:55:58,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-05 21:55:58,691 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:58,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:58,823 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-05 21:55:58,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:58,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2024-12-05 21:55:58,942 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2024-12-05 21:55:58,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-05 21:55:58,943 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:58,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:59,068 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-05 21:55:59,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:59,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 28 states and 44 transitions. [2024-12-05 21:55:59,196 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2024-12-05 21:55:59,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-05 21:55:59,197 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:59,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-05 21:56:01,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 47 states and 94 transitions. [2024-12-05 21:56:01,579 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 94 transitions. [2024-12-05 21:56:01,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-05 21:56:01,581 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:01,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:56:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:01,914 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-05 21:56:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:03,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 29 states and 31 transitions. [2024-12-05 21:56:03,139 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2024-12-05 21:56:03,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-05 21:56:03,140 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2024-12-05 21:56:03,149 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-05 21:56:03,242 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-05 21:56:03,242 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) the Hoare annotation is: true [2024-12-05 21:56:03,242 INFO L77 FloydHoareUtils]: At program point L15(line 15) the Hoare annotation is: true [2024-12-05 21:56:03,242 INFO L77 FloydHoareUtils]: At program point L14(lines 14 16) the Hoare annotation is: true [2024-12-05 21:56:03,243 INFO L77 FloydHoareUtils]: At program point L13(line 13) the Hoare annotation is: (and (<= 5 |ULTIMATE.start_main_~input~0#1|) (<= |ULTIMATE.start_main_~input~0#1| 5)) [2024-12-05 21:56:03,243 INFO L77 FloydHoareUtils]: At program point L13-1(line 13) the Hoare annotation is: true [2024-12-05 21:56:03,243 INFO L77 FloydHoareUtils]: At program point L11(lines 11 17) the Hoare annotation is: true [2024-12-05 21:56:03,243 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-05 21:56:03,243 INFO L77 FloydHoareUtils]: At program point idFINAL(lines 6 9) the Hoare annotation is: true [2024-12-05 21:56:03,243 INFO L77 FloydHoareUtils]: At program point idEXIT(lines 6 9) the Hoare annotation is: true [2024-12-05 21:56:03,243 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 6 9) the Hoare annotation is: true [2024-12-05 21:56:03,243 INFO L77 FloydHoareUtils]: At program point L8(line 8) the Hoare annotation is: (and (<= id_~x |id_#in~x|) (<= |id_#in~x| id_~x)) [2024-12-05 21:56:03,243 INFO L77 FloydHoareUtils]: At program point L7(line 7) the Hoare annotation is: (and (<= id_~x |id_#in~x|) (<= |id_#in~x| id_~x)) [2024-12-05 21:56:03,243 INFO L77 FloydHoareUtils]: At program point L8-1(line 8) the Hoare annotation is: true [2024-12-05 21:56:03,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:56:03 ImpRootNode [2024-12-05 21:56:03,253 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:56:03,253 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:56:03,253 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:56:03,254 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:56:03,254 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:55:57" (3/4) ... [2024-12-05 21:56:03,256 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-05 21:56:03,260 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-12-05 21:56:03,263 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-05 21:56:03,263 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-05 21:56:03,263 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-05 21:56:03,263 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-05 21:56:03,330 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 21:56:03,330 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 21:56:03,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:56:03,331 INFO L158 Benchmark]: Toolchain (without parser) took 5910.12ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 45.1MB in the end (delta: 72.0MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2024-12-05 21:56:03,331 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:56:03,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.43ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 106.3MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:56:03,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.52ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:56:03,332 INFO L158 Benchmark]: Boogie Preprocessor took 14.21ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 104.7MB in the end (delta: 467.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:56:03,332 INFO L158 Benchmark]: RCFGBuilder took 221.76ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 94.9MB in the end (delta: 9.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 21:56:03,333 INFO L158 Benchmark]: CodeCheck took 5397.17ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 49.5MB in the end (delta: 45.1MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2024-12-05 21:56:03,333 INFO L158 Benchmark]: Witness Printer took 77.03ms. Allocated memory is still 142.6MB. Free memory was 49.5MB in the beginning and 45.1MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:56:03,335 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 316 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 334 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 234 mSDsCounter, 312 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1130 IncrementalHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 312 mSolverCounterUnsat, 100 mSDtfsCounter, 1130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2101 GetRequests, 1909 SyntacticMatches, 72 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5044 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 204/294 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: 15]: 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 0.33ms. Allocated memory is still 142.6MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.43ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 106.3MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.52ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.21ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 104.7MB in the end (delta: 467.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 221.76ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 94.9MB in the end (delta: 9.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 5397.17ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 49.5MB in the end (delta: 45.1MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 77.03ms. Allocated memory is still 142.6MB. Free memory was 49.5MB in the beginning and 45.1MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-05 21:56:03,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7122acdf-3da3-4f5d-8705-f56b0091cccd/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