./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/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_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18afe523baca40cb7d279a05e0d0a8c37efda6f4bcc6a4be698eb3701f39ab37 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:54:12,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:54:12,368 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-12-06 04:54:12,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:54:12,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:54:12,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:54:12,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:54:12,395 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:54:12,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:54:12,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:54:12,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:54:12,396 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:54:12,396 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 04:54:12,396 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:54:12,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 04:54:12,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:54:12,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:54:12,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:54:12,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:54:12,396 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:54:12,396 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:54:12,397 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 04:54:12,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:54:12,397 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:54:12,397 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:54:12,397 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:54:12,397 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:54:12,397 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:54:12,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:54:12,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:54:12,397 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:54:12,397 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:54:12,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:54:12,398 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:54:12,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:54:12,398 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_02eb3907-2224-4e0b-8f13-715368ae1773/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 ! overflow) ) 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 -> 18afe523baca40cb7d279a05e0d0a8c37efda6f4bcc6a4be698eb3701f39ab37 [2024-12-06 04:54:12,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:54:12,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:54:12,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:54:12,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:54:12,652 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:54:12,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2024-12-06 04:54:15,373 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/data/82e10f331/ecdc910fa1fa404aaf189a4588290cab/FLAG5f34a4175 [2024-12-06 04:54:15,574 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:54:15,575 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2024-12-06 04:54:15,582 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/data/82e10f331/ecdc910fa1fa404aaf189a4588290cab/FLAG5f34a4175 [2024-12-06 04:54:15,933 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/data/82e10f331/ecdc910fa1fa404aaf189a4588290cab [2024-12-06 04:54:15,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:54:15,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:54:15,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:54:15,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:54:15,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:54:15,943 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:54:15" (1/1) ... [2024-12-06 04:54:15,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697c1313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:15, skipping insertion in model container [2024-12-06 04:54:15,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:54:15" (1/1) ... [2024-12-06 04:54:15,957 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:54:16,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:54:16,088 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:54:16,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:54:16,113 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:54:16,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16 WrapperNode [2024-12-06 04:54:16,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:54:16,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:54:16,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:54:16,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:54:16,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,140 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2024-12-06 04:54:16,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:54:16,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:54:16,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:54:16,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:54:16,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,150 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,153 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:54:16,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:54:16,156 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:54:16,156 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:54:16,157 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:54:16,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:54:16,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:54:16,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:54:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:54:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:54:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:54:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:54:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-12-06 04:54:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-12-06 04:54:16,263 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:54:16,265 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:54:16,357 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-12-06 04:54:16,358 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:54:16,381 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:54:16,381 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:54:16,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:54:16 BoogieIcfgContainer [2024-12-06 04:54:16,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:54:16,382 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:54:16,383 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:54:16,389 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:54:16,389 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:54:16" (1/1) ... [2024-12-06 04:54:16,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:54:16,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:54:16,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-12-06 04:54:16,441 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-12-06 04:54:16,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 04:54:16,445 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:54:16,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:54:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:54:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-06 04:54:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:54:16,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-12-06 04:54:16,724 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-12-06 04:54:16,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 04:54:16,724 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:54:16,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:54:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:54:16,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-06 04:54:16,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:54:16,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-12-06 04:54:16,819 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-12-06 04:54:16,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 04:54:16,820 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:54:16,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:54:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:54:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-06 04:54:16,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:54:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-12-06 04:54:16,940 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-12-06 04:54:16,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 04:54:16,940 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:54:16,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:54:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:54:17,084 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-06 04:54:17,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:54:17,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2024-12-06 04:54:17,254 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2024-12-06 04:54:17,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 04:54:17,255 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:54:17,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:54:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:54:17,393 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 04:54:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:54:17,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2024-12-06 04:54:17,525 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-12-06 04:54:17,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-06 04:54:17,526 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:54:17,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:54:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:54:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-06 04:54:17,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:54:17,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2024-12-06 04:54:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2024-12-06 04:54:17,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 04:54:17,792 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-12-06 04:54:17,800 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-12-06 04:54:17,933 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 04:54:17,933 INFO L77 FloydHoareUtils]: At program point L15(line 15) the Hoare annotation is: true [2024-12-06 04:54:17,933 INFO L77 FloydHoareUtils]: At program point L15-1(line 15) the Hoare annotation is: true [2024-12-06 04:54:17,933 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 04:54:17,933 INFO L77 FloydHoareUtils]: At program point idFINAL(lines 6 11) the Hoare annotation is: (<= |id_#res| 3) [2024-12-06 04:54:17,933 INFO L77 FloydHoareUtils]: At program point idEXIT(lines 6 11) the Hoare annotation is: (<= |id_#res| 3) [2024-12-06 04:54:17,933 INFO L75 FloydHoareUtils]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2024-12-06 04:54:17,934 INFO L75 FloydHoareUtils]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2024-12-06 04:54:17,934 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 6 11) the Hoare annotation is: true [2024-12-06 04:54:17,934 INFO L77 FloydHoareUtils]: At program point L8(line 8) the Hoare annotation is: true [2024-12-06 04:54:17,934 INFO L77 FloydHoareUtils]: At program point L7(line 7) the Hoare annotation is: true [2024-12-06 04:54:17,934 INFO L77 FloydHoareUtils]: At program point L8-1(line 8) the Hoare annotation is: (<= |id_#t~ret4| 3) [2024-12-06 04:54:17,934 INFO L77 FloydHoareUtils]: At program point L8-2(line 8) the Hoare annotation is: (or (and (<= |id_#t~ret4| 2) (< 1 |id_#t~ret4|)) (and (<= |id_#t~ret4| 3) (< 2 |id_#t~ret4|)) (and (<= |id_#t~ret4| 1) (<= 0 (+ |id_#t~ret4| 2147483648)))) [2024-12-06 04:54:17,934 INFO L77 FloydHoareUtils]: At program point L8-3(line 8) the Hoare annotation is: (<= |id_#t~ret4| 3) [2024-12-06 04:54:17,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:54:17 ImpRootNode [2024-12-06 04:54:17,949 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:54:17,950 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:54:17,950 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:54:17,950 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:54:17,950 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:54:16" (3/4) ... [2024-12-06 04:54:17,953 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 04:54:17,955 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-12-06 04:54:17,958 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-12-06 04:54:17,959 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-06 04:54:17,959 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 04:54:17,959 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 04:54:18,010 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 04:54:18,011 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 04:54:18,011 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:54:18,011 INFO L158 Benchmark]: Toolchain (without parser) took 2074.98ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 93.0MB in the end (delta: 26.0MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-12-06 04:54:18,012 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:54:18,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.87ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 108.4MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:54:18,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.73ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 107.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:54:18,012 INFO L158 Benchmark]: Boogie Preprocessor took 13.98ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.7MB in the end (delta: 764.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:54:18,012 INFO L158 Benchmark]: RCFGBuilder took 226.56ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 95.4MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:54:18,013 INFO L158 Benchmark]: CodeCheck took 1566.59ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 97.5MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:54:18,013 INFO L158 Benchmark]: Witness Printer took 61.23ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 93.0MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:54:18,015 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, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 164 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 238 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 90 mSDtfsCounter, 238 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 732 GetRequests, 693 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 119/139 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ProcedureContractResult [Line: 6]: Procedure Contract for id Derived contract for procedure id. Ensures: (\result <= 3) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.87ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 108.4MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.73ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 107.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.98ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.7MB in the end (delta: 764.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 226.56ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 95.4MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1566.59ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 97.5MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.23ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 93.0MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 04:54:18,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eb3907-2224-4e0b-8f13-715368ae1773/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