./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i10_o10-2.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_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/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_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i10_o10-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/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_e60c8174-cb3d-4941-a76c-d01cb46d90c5/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 3f8ee4f5181b3404c1367dbf131683f1e761cea6b176154f687b628466c991fe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:47:27,361 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:47:27,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:47:27,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:47:27,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:47:27,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:47:27,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:47:27,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:47:27,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:47:27,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:47:27,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:47:27,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:47:27,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:47:27,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:47:27,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:47:27,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:47:27,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:47:27,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:47:27,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:47:27,445 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:47:27,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:47:27,445 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:47:27,445 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:47:27,445 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:47:27,445 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:47:27,445 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:47:27,445 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:47:27,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:47:27,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:47:27,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:47:27,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:47:27,446 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:47:27,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:47:27,446 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_e60c8174-cb3d-4941-a76c-d01cb46d90c5/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 -> 3f8ee4f5181b3404c1367dbf131683f1e761cea6b176154f687b628466c991fe [2024-12-06 03:47:27,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:47:27,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:47:27,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:47:27,708 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:47:27,708 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:47:27,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive-simple/id_i10_o10-2.c [2024-12-06 03:47:30,319 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/data/2a7d171cc/f1baf06a8192492b81fd9a3f2c9308a2/FLAG9f2bec512 [2024-12-06 03:47:30,537 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:47:30,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/sv-benchmarks/c/recursive-simple/id_i10_o10-2.c [2024-12-06 03:47:30,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/data/2a7d171cc/f1baf06a8192492b81fd9a3f2c9308a2/FLAG9f2bec512 [2024-12-06 03:47:30,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/data/2a7d171cc/f1baf06a8192492b81fd9a3f2c9308a2 [2024-12-06 03:47:30,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:47:30,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:47:30,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:47:30,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:47:30,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:47:30,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:47:30" (1/1) ... [2024-12-06 03:47:30,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1868c42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:30, skipping insertion in model container [2024-12-06 03:47:30,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:47:30" (1/1) ... [2024-12-06 03:47:30,913 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:47:31,001 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_e60c8174-cb3d-4941-a76c-d01cb46d90c5/sv-benchmarks/c/recursive-simple/id_i10_o10-2.c[454,467] [2024-12-06 03:47:31,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:47:31,010 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:47:31,018 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/sv-benchmarks/c/recursive-simple/id_i10_o10-2.c[454,467] [2024-12-06 03:47:31,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:47:31,028 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:47:31,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31 WrapperNode [2024-12-06 03:47:31,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:47:31,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:47:31,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:47:31,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:47:31,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,048 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-12-06 03:47:31,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:47:31,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:47:31,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:47:31,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:47:31,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,056 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:47:31,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:47:31,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:47:31,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:47:31,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:47:31,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:47:31,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:47:31,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:47:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:47:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:47:31,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:47:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:47:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-12-06 03:47:31,105 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-12-06 03:47:31,148 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:47:31,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:47:31,213 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-06 03:47:31,213 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:47:31,227 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:47:31,227 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:47:31,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:47:31 BoogieIcfgContainer [2024-12-06 03:47:31,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:47:31,228 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:47:31,228 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:47:31,237 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:47:31,237 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:47:31" (1/1) ... [2024-12-06 03:47:31,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:47:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-06 03:47:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-06 03:47:31,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 03:47:31,295 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:31,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:31,464 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 03:47:31,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:31,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2024-12-06 03:47:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-12-06 03:47:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 03:47:31,542 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:31,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:31,646 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 03:47:31,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:31,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2024-12-06 03:47:31,763 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-12-06 03:47:31,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 03:47:31,764 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:31,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:31,874 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-06 03:47:31,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2024-12-06 03:47:31,982 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-12-06 03:47:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 03:47:31,982 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:31,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:32,112 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-06 03:47:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2024-12-06 03:47:32,222 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2024-12-06 03:47:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-06 03:47:32,223 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:32,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:32,338 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-06 03:47:32,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 28 states and 44 transitions. [2024-12-06 03:47:32,454 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2024-12-06 03:47:32,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-06 03:47:32,455 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:32,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:32,595 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-06 03:47:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 53 transitions. [2024-12-06 03:47:32,735 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2024-12-06 03:47:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-06 03:47:32,736 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:32,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:32,874 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-06 03:47:33,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:33,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 34 states and 63 transitions. [2024-12-06 03:47:33,012 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2024-12-06 03:47:33,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-06 03:47:33,013 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:33,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:33,193 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-12-06 03:47:33,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:33,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 37 states and 74 transitions. [2024-12-06 03:47:33,348 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2024-12-06 03:47:33,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-06 03:47:33,349 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:33,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-12-06 03:47:33,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 40 states and 86 transitions. [2024-12-06 03:47:33,710 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 86 transitions. [2024-12-06 03:47:33,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-06 03:47:33,711 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:33,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-12-06 03:47:34,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:34,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 43 states and 99 transitions. [2024-12-06 03:47:34,140 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 99 transitions. [2024-12-06 03:47:34,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-06 03:47:34,141 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:34,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:35,204 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-12-06 03:47:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 77 states and 244 transitions. [2024-12-06 03:47:40,078 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 244 transitions. [2024-12-06 03:47:40,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-06 03:47:40,080 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:40,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-12-06 03:47:42,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:42,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 44 states and 46 transitions. [2024-12-06 03:47:42,498 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2024-12-06 03:47:42,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 03:47:42,498 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2024-12-06 03:47:42,508 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 03:47:42,647 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 03:47:42,647 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) the Hoare annotation is: true [2024-12-06 03:47:42,647 INFO L77 FloydHoareUtils]: At program point L15(line 15) the Hoare annotation is: true [2024-12-06 03:47:42,647 INFO L77 FloydHoareUtils]: At program point L14(lines 14 16) the Hoare annotation is: true [2024-12-06 03:47:42,647 INFO L77 FloydHoareUtils]: At program point L13(line 13) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~input~0#1| 10) (<= 10 |ULTIMATE.start_main_~input~0#1|)) [2024-12-06 03:47:42,647 INFO L77 FloydHoareUtils]: At program point L13-1(line 13) the Hoare annotation is: true [2024-12-06 03:47:42,647 INFO L77 FloydHoareUtils]: At program point L11(lines 11 17) the Hoare annotation is: true [2024-12-06 03:47:42,647 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 03:47:42,648 INFO L77 FloydHoareUtils]: At program point idFINAL(lines 6 9) the Hoare annotation is: true [2024-12-06 03:47:42,648 INFO L77 FloydHoareUtils]: At program point idEXIT(lines 6 9) the Hoare annotation is: true [2024-12-06 03:47:42,648 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 6 9) the Hoare annotation is: true [2024-12-06 03:47:42,648 INFO L77 FloydHoareUtils]: At program point L8(line 8) the Hoare annotation is: (and (<= id_~x |id_#in~x|) (<= |id_#in~x| id_~x)) [2024-12-06 03:47:42,648 INFO L77 FloydHoareUtils]: At program point L7(line 7) the Hoare annotation is: (and (<= id_~x |id_#in~x|) (<= |id_#in~x| id_~x)) [2024-12-06 03:47:42,648 INFO L77 FloydHoareUtils]: At program point L8-1(line 8) the Hoare annotation is: true [2024-12-06 03:47:42,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:47:42 ImpRootNode [2024-12-06 03:47:42,656 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:47:42,657 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:47:42,657 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:47:42,657 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:47:42,657 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:47:31" (3/4) ... [2024-12-06 03:47:42,659 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 03:47:42,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-12-06 03:47:42,666 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-06 03:47:42,666 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-06 03:47:42,666 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 03:47:42,666 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 03:47:42,727 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:47:42,727 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:47:42,728 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:47:42,728 INFO L158 Benchmark]: Toolchain (without parser) took 11829.28ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 118.4MB in the beginning and 126.3MB in the end (delta: -7.9MB). Peak memory consumption was 167.9MB. Max. memory is 16.1GB. [2024-12-06 03:47:42,728 INFO L158 Benchmark]: CDTParser took 0.27ms. 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 03:47:42,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 128.70ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 107.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:47:42,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.62ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 106.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:47:42,729 INFO L158 Benchmark]: Boogie Preprocessor took 10.66ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 106.0MB in the end (delta: 615.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:47:42,729 INFO L158 Benchmark]: RCFGBuilder took 167.17ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 96.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:47:42,729 INFO L158 Benchmark]: CodeCheck took 11428.48ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 96.4MB in the beginning and 131.2MB in the end (delta: -34.8MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. [2024-12-06 03:47:42,730 INFO L158 Benchmark]: Witness Printer took 70.95ms. Allocated memory is still 318.8MB. Free memory was 131.2MB in the beginning and 126.3MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:47:42,732 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: 11.2s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 686 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 359 mSDsluCounter, 829 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 659 mSDsCounter, 852 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3710 IncrementalHoareTripleChecker+Invalid, 4562 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 852 mSolverCounterUnsat, 170 mSDtfsCounter, 3710 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6846 GetRequests, 6374 SyntacticMatches, 272 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15264 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 504 NumberOfCodeBlocks, 504 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 492 ConstructedInterpolants, 0 QuantifiedInterpolants, 1208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 979/1584 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 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 128.70ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 107.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.62ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 106.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.66ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 106.0MB in the end (delta: 615.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 167.17ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 96.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 11428.48ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 96.4MB in the beginning and 131.2MB in the end (delta: -34.8MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. * Witness Printer took 70.95ms. Allocated memory is still 318.8MB. Free memory was 131.2MB in the beginning and 126.3MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 03:47:42,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60c8174-cb3d-4941-a76c-d01cb46d90c5/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