./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i --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_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/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_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/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_9d4d92a6-b306-4516-ae87-a7f0d6c05719/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 269192e0ce62778fb1c3069e295f5d66462d8f75d0940ae7775ba43047923000 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:19:53,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:19:53,617 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-12-06 01:19:53,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:19:53,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:19:53,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:19:53,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:19:53,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:19:53,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:19:53,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:19:53,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:19:53,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:19:53,643 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:19:53,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:19:53,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:19:53,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:19:53,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:19:53,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:19:53,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:19:53,644 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:19:53,644 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:19:53,644 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:19:53,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:19:53,644 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:19:53,644 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:19:53,644 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:19:53,644 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:19:53,645 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:19:53,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:19:53,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:19:53,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:19:53,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:19:53,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:19:53,645 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:19:53,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:19:53,645 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_9d4d92a6-b306-4516-ae87-a7f0d6c05719/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 -> 269192e0ce62778fb1c3069e295f5d66462d8f75d0940ae7775ba43047923000 [2024-12-06 01:19:53,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:19:53,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:19:53,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:19:53,878 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:19:53,878 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:19:53,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i [2024-12-06 01:19:56,512 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/data/b08ecc04a/a11916fe7f9f4657a6aba22ea9f08118/FLAG273bc5d34 [2024-12-06 01:19:56,731 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:19:56,734 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation.i [2024-12-06 01:19:56,744 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/data/b08ecc04a/a11916fe7f9f4657a6aba22ea9f08118/FLAG273bc5d34 [2024-12-06 01:19:57,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/data/b08ecc04a/a11916fe7f9f4657a6aba22ea9f08118 [2024-12-06 01:19:57,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:19:57,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:19:57,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:19:57,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:19:57,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:19:57,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440f1847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57, skipping insertion in model container [2024-12-06 01:19:57,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:19:57,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:19:57,220 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:19:57,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:19:57,243 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:19:57,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57 WrapperNode [2024-12-06 01:19:57,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:19:57,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:19:57,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:19:57,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:19:57,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,269 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43 [2024-12-06 01:19:57,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:19:57,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:19:57,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:19:57,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:19:57,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,279 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:19:57,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:19:57,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:19:57,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:19:57,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:19:57,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:19:57,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:19:57,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:19:57,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:19:57,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:19:57,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:19:57,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:19:57,387 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:19:57,389 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:19:57,554 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-06 01:19:57,554 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:19:57,600 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:19:57,600 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:19:57,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:19:57 BoogieIcfgContainer [2024-12-06 01:19:57,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:19:57,601 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:19:57,601 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:19:57,607 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:19:57,607 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:19:57" (1/1) ... [2024-12-06 01:19:57,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:19:57,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:19:57,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 6 states and 5 transitions. [2024-12-06 01:19:57,658 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2024-12-06 01:19:57,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-12-06 01:19:57,660 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:19:57,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:19:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 01:19:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:19:57,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 01:19:57,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 01:19:57,895 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 01:19:58,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:19:58,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 5 states and 4 transitions. [2024-12-06 01:19:58,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2024-12-06 01:19:58,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 01:19:58,085 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:19:58,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:19:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 01:19:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:19:58,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 01:19:58,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 01:19:58,201 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 01:19:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:19:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2024-12-06 01:19:58,748 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2024-12-06 01:19:58,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 01:19:58,749 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2024-12-06 01:19:58,754 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-12-06 01:19:58,789 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2024-12-06 01:19:58,789 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 01:19:58,789 INFO L77 FloydHoareUtils]: At program point L27-2(line 27) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x0~0#1| |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x0~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~y0~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y0~0#1| |ULTIMATE.start_main_~y1~0#1|) (<= |ULTIMATE.start_main_~y1~0#1| 2147483647) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x0~0#1| 1) |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x1~0#1|)) [2024-12-06 01:19:58,789 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 01:19:58,790 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2024-12-06 01:19:58,790 INFO L77 FloydHoareUtils]: At program point L28(line 28) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~x0~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y0~0#1| |ULTIMATE.start_main_~y1~0#1|) (<= |ULTIMATE.start_main_~y1~0#1| 2147483647) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x0~0#1| 1) |ULTIMATE.start_main_~x1~0#1|)) [2024-12-06 01:19:58,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:19:58 ImpRootNode [2024-12-06 01:19:58,801 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:19:58,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:19:58,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:19:58,801 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:19:58,802 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:19:57" (3/4) ... [2024-12-06 01:19:58,804 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 01:19:58,810 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-12-06 01:19:58,810 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-06 01:19:58,810 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 01:19:58,810 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 01:19:58,873 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:19:58,874 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:19:58,874 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:19:58,875 INFO L158 Benchmark]: Toolchain (without parser) took 1798.75ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 107.4MB in the end (delta: 11.4MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-12-06 01:19:58,875 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:19:58,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.18ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 107.9MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:19:58,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.93ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 106.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:19:58,876 INFO L158 Benchmark]: Boogie Preprocessor took 15.61ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.9MB in the end (delta: 543.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:19:58,876 INFO L158 Benchmark]: RCFGBuilder took 314.55ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 88.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:19:58,876 INFO L158 Benchmark]: CodeCheck took 1199.94ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 111.9MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:19:58,877 INFO L158 Benchmark]: Witness Printer took 72.78ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 107.4MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:19:58,878 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, 6 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 65 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: 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 - InvariantResult [Line: 28]: Location Invariant Derived location invariant: (((((0 <= (x0 + 2147483648)) && (y0 <= y1)) && (y1 <= 2147483647)) && (x1 <= 2147483647)) && (((long long) x0 + 1) <= x1)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.18ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 107.9MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.93ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 106.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.61ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.9MB in the end (delta: 543.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.55ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 88.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1199.94ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 111.9MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 72.78ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 107.4MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 01:19:58,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d4d92a6-b306-4516-ae87-a7f0d6c05719/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