./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/modulus-2.i --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_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/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_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/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_a59774e2-2f0c-47db-8182-516124c9bf62/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 573a31c00e41ae75ac0c33bb566a9b1a0edc6ad80bfad98caf671cb01963ec0c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:57:55,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:57:55,612 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 05:57:55,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:57:55,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:57:55,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:57:55,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:57:55,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:57:55,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:57:55,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:57:55,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:57:55,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:57:55,641 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:57:55,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:57:55,641 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:57:55,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:57:55,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:57:55,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:57:55,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:57:55,642 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:57:55,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:57:55,642 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:57:55,642 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:57:55,642 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:57:55,642 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:57:55,642 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:57:55,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:57:55,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:57:55,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:57:55,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:57:55,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:57:55,643 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:57:55,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:57:55,643 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_a59774e2-2f0c-47db-8182-516124c9bf62/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 -> 573a31c00e41ae75ac0c33bb566a9b1a0edc6ad80bfad98caf671cb01963ec0c [2024-12-06 05:57:55,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:57:55,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:57:55,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:57:55,907 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:57:55,908 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:57:55,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/bitvector/modulus-2.i [2024-12-06 05:57:58,511 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/data/55c240b18/e499b2fc6c904d81a910b6f0ccc4d020/FLAGa51a4f112 [2024-12-06 05:57:58,703 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:57:58,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/sv-benchmarks/c/bitvector/modulus-2.i [2024-12-06 05:57:58,711 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/data/55c240b18/e499b2fc6c904d81a910b6f0ccc4d020/FLAGa51a4f112 [2024-12-06 05:57:59,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/data/55c240b18/e499b2fc6c904d81a910b6f0ccc4d020 [2024-12-06 05:57:59,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:57:59,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:57:59,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:57:59,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:57:59,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:57:59,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@468eed26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59, skipping insertion in model container [2024-12-06 05:57:59,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:57:59,220 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_a59774e2-2f0c-47db-8182-516124c9bf62/sv-benchmarks/c/bitvector/modulus-2.i[1252,1265] [2024-12-06 05:57:59,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:57:59,245 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:57:59,254 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_a59774e2-2f0c-47db-8182-516124c9bf62/sv-benchmarks/c/bitvector/modulus-2.i[1252,1265] [2024-12-06 05:57:59,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:57:59,272 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:57:59,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59 WrapperNode [2024-12-06 05:57:59,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:57:59,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:57:59,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:57:59,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:57:59,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,296 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-12-06 05:57:59,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:57:59,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:57:59,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:57:59,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:57:59,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,307 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,312 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:57:59,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:57:59,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:57:59,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:57:59,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:57:59,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:57:59,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:57:59,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:57:59,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:57:59,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:57:59,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:57:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:57:59,418 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:57:59,419 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:57:59,554 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-06 05:57:59,554 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:57:59,638 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:57:59,638 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 05:57:59,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:57:59 BoogieIcfgContainer [2024-12-06 05:57:59,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:57:59,640 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:57:59,640 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:57:59,649 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:57:59,649 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:57:59" (1/1) ... [2024-12-06 05:57:59,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:57:59,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:57:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2024-12-06 05:57:59,703 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2024-12-06 05:57:59,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 05:57:59,705 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:57:59,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:57:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:57:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:57:59,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 05:57:59,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:58:00,069 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 05:58:00,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:58:00,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2024-12-06 05:58:00,150 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2024-12-06 05:58:00,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 05:58:00,150 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:58:00,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:58:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:58:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:58:00,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:58:00,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 13 states and 21 transitions. [2024-12-06 05:58:00,328 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 21 transitions. [2024-12-06 05:58:00,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:58:00,330 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:58:00,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:58:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:58:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:58:00,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-06 05:58:00,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:58:00,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:58:00,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:58:00,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2024-12-06 05:58:00,966 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2024-12-06 05:58:00,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 05:58:00,966 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:58:00,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:58:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:58:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:58:01,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-06 05:58:01,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:58:01,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 05:58:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:58:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 11 states and 25 transitions. [2024-12-06 05:58:01,725 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 25 transitions. [2024-12-06 05:58:01,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 05:58:01,725 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2024-12-06 05:58:01,731 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 05:58:01,783 INFO L77 FloydHoareUtils]: At program point L56-3(lines 56 59) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~d~0#1| 4294967296))) (and (<= 1 .cse0) (<= .cse0 4294967294))) [2024-12-06 05:58:01,783 INFO L77 FloydHoareUtils]: At program point L52(lines 52 66) the Hoare annotation is: true [2024-12-06 05:58:01,783 INFO L77 FloydHoareUtils]: At program point L52-2(lines 52 66) the Hoare annotation is: true [2024-12-06 05:58:01,783 INFO L77 FloydHoareUtils]: At program point L28(lines 28 30) the Hoare annotation is: (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) [2024-12-06 05:58:01,783 INFO L77 FloydHoareUtils]: At program point L28-2(lines 27 32) the Hoare annotation is: true [2024-12-06 05:58:01,784 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 29) no Hoare annotation was computed. [2024-12-06 05:58:01,784 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 05:58:01,784 INFO L75 FloydHoareUtils]: For program point L29(line 29) no Hoare annotation was computed. [2024-12-06 05:58:01,784 INFO L77 FloydHoareUtils]: At program point L54-3(lines 54 61) the Hoare annotation is: (and (<= 1 (mod |ULTIMATE.start_main_~d~0#1| 4294967296)) (= |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|)) [2024-12-06 05:58:01,784 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 05:58:01,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:58:01 ImpRootNode [2024-12-06 05:58:01,793 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:58:01,794 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:58:01,794 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:58:01,794 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:58:01,795 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:57:59" (3/4) ... [2024-12-06 05:58:01,796 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 05:58:01,801 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-12-06 05:58:01,802 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-12-06 05:58:01,802 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 05:58:01,802 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 05:58:01,860 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 05:58:01,860 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 05:58:01,860 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:58:01,861 INFO L158 Benchmark]: Toolchain (without parser) took 2763.25ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 48.8MB in the end (delta: 69.0MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2024-12-06 05:58:01,861 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:58:01,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.23ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 106.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:58:01,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.01ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:58:01,862 INFO L158 Benchmark]: Boogie Preprocessor took 17.45ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.5MB in the end (delta: 791.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:58:01,862 INFO L158 Benchmark]: RCFGBuilder took 323.60ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 86.5MB in the end (delta: 17.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-06 05:58:01,863 INFO L158 Benchmark]: CodeCheck took 2153.73ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 53.7MB in the end (delta: 32.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2024-12-06 05:58:01,863 INFO L158 Benchmark]: Witness Printer took 66.66ms. Allocated memory is still 142.6MB. Free memory was 53.7MB in the beginning and 48.8MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:58:01,865 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 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 12 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 301 GetRequests, 256 SyntacticMatches, 11 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 1 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 6/7 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: 29]: 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 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: ((1 <= d) && (d <= 4294967294)) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((1 <= d) && (m == n)) * 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 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.23ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 106.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.01ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.45ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.5MB in the end (delta: 791.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 323.60ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 86.5MB in the end (delta: 17.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 2153.73ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 53.7MB in the end (delta: 32.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Witness Printer took 66.66ms. Allocated memory is still 142.6MB. Free memory was 53.7MB in the beginning and 48.8MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 05:58:01,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59774e2-2f0c-47db-8182-516124c9bf62/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