./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm --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 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:04:17,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:04:17,141 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-13 21:04:17,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:04:17,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:04:17,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:04:17,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:04:17,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:04:17,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:04:17,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:04:17,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:04:17,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:04:17,178 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:04:17,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:04:17,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:04:17,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:04:17,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:04:17,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:04:17,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:04:17,179 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:04:17,179 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:04:17,179 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:04:17,180 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:04:17,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:04:17,180 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:04:17,180 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:04:17,180 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:04:17,180 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:04:17,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:04:17,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:04:17,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:04:17,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:04:17,181 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:04:17,181 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:04:17,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:04:17,181 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_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm 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 -> 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd [2024-11-13 21:04:17,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:04:17,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:04:17,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:04:17,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:04:17,463 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:04:17,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/float-benchs/interpolation.c Unable to find full path for "g++" [2024-11-13 21:04:19,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:04:19,646 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:04:19,647 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/sv-benchmarks/c/float-benchs/interpolation.c [2024-11-13 21:04:19,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/data/5ecf7b040/916442286afd4be4821a19e7faba887b/FLAG15e6a5ac7 [2024-11-13 21:04:19,696 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/data/5ecf7b040/916442286afd4be4821a19e7faba887b [2024-11-13 21:04:19,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:04:19,700 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:04:19,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:04:19,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:04:19,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:04:19,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:19,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34037cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19, skipping insertion in model container [2024-11-13 21:04:19,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:19,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:04:19,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:04:19,922 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:04:19,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:04:19,954 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:04:19,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19 WrapperNode [2024-11-13 21:04:19,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:04:19,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:04:19,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:04:19,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:04:19,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:19,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:19,991 INFO L138 Inliner]: procedures = 18, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78 [2024-11-13 21:04:19,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:04:19,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:04:19,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:04:19,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:04:20,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:20,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:20,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:20,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:20,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:20,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:20,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:20,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:20,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:04:20,025 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:04:20,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:04:20,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:04:20,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:19" (1/1) ... [2024-11-13 21:04:20,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:04:20,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:04:20,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:04:20,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:04:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:04:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:04:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:04:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-13 21:04:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:04:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:04:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-13 21:04:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:04:20,172 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:04:20,174 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:04:20,359 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-13 21:04:20,359 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:04:20,450 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:04:20,450 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 21:04:20,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:04:20 BoogieIcfgContainer [2024-11-13 21:04:20,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:04:20,454 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:04:20,454 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:04:20,464 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:04:20,464 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:04:20" (1/1) ... [2024-11-13 21:04:20,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:04:20,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:04:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2024-11-13 21:04:20,533 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-11-13 21:04:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 21:04:20,536 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:04:20,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:04:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:04:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:04:20,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:04:20,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2024-11-13 21:04:20,846 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2024-11-13 21:04:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 21:04:20,846 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:04:20,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:04:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:04:20,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:04:21,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:04:21,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-11-13 21:04:21,098 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-11-13 21:04:21,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:04:21,098 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:04:21,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:04:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:04:21,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:04:21,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:04:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-13 21:04:21,336 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-13 21:04:21,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 21:04:21,337 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:04:21,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:04:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:04:21,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:04:21,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:04:21,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2024-11-13 21:04:21,692 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2024-11-13 21:04:21,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 21:04:21,693 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:04:21,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:04:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:04:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:04:22,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:04:22,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-11-13 21:04:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-11-13 21:04:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 21:04:22,073 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:04:22,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:04:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:04:22,233 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:04:22,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:04:22,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2024-11-13 21:04:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2024-11-13 21:04:22,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:04:22,438 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:04:22,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:04:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:04:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:04:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:04:22,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2024-11-13 21:04:22,880 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-11-13 21:04:22,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 21:04:22,881 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:04:22,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:04:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:04:23,127 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:04:23,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:04:23,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-11-13 21:04:23,359 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-13 21:04:23,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 21:04:23,359 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-11-13 21:04:23,367 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-13 21:04:23,684 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2024-11-13 21:04:23,684 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 21:04:23,685 INFO L77 FloydHoareUtils]: At program point L21-2(line 21) the Hoare annotation is: (or (and (< 2 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 3)) (and (< 0 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 1)) (and (<= 0 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 0)) (and (< 1 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 2)) (and (<= |ULTIMATE.start_main_#t~post9#1| 4) (< 3 |ULTIMATE.start_main_#t~post9#1|))) [2024-11-13 21:04:23,686 INFO L77 FloydHoareUtils]: At program point L21-3(line 21) the Hoare annotation is: (or (and (< 2 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 3)) (and (< 0 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 1)) (and (<= 0 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 0)) (and (< 1 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 2)) (and (<= |ULTIMATE.start_main_#t~post9#1| 4) (< 3 |ULTIMATE.start_main_#t~post9#1|))) [2024-11-13 21:04:23,686 INFO L77 FloydHoareUtils]: At program point L21-4(lines 21 23) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~i~0#1| 3) (< 2 |ULTIMATE.start_main_~i~0#1|)) (and (< 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 4)) (and (< 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and (< 4 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 5)) (and (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|)) (and (< 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))) [2024-11-13 21:04:23,686 INFO L77 FloydHoareUtils]: At program point L21-5(lines 21 23) the Hoare annotation is: true [2024-11-13 21:04:23,686 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 21:04:23,687 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2024-11-13 21:04:23,687 INFO L77 FloydHoareUtils]: At program point L22(line 22) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~i~0#1| 3) (< 2 |ULTIMATE.start_main_~i~0#1|)) (and (< 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 4)) (and (< 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|)) (and (< 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))) [2024-11-13 21:04:23,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:04:23 ImpRootNode [2024-11-13 21:04:23,704 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:04:23,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:04:23,705 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:04:23,705 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:04:23,706 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:04:20" (3/4) ... [2024-11-13 21:04:23,708 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 21:04:23,717 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-13 21:04:23,718 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-13 21:04:23,718 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 21:04:23,718 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 21:04:23,814 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:04:23,814 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 21:04:23,814 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:04:23,818 INFO L158 Benchmark]: Toolchain (without parser) took 4115.63ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 105.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-13 21:04:23,818 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:04:23,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.40ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 108.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:04:23,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.90ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 106.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:04:23,819 INFO L158 Benchmark]: Boogie Preprocessor took 32.10ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:04:23,819 INFO L158 Benchmark]: RCFGBuilder took 428.52ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 91.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:04:23,819 INFO L158 Benchmark]: CodeCheck took 3250.26ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 110.1MB in the end (delta: -19.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:04:23,821 INFO L158 Benchmark]: Witness Printer took 110.10ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 105.2MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:04:23,823 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 581 IncrementalHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 60 mSDtfsCounter, 581 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 764 GetRequests, 644 SyntacticMatches, 68 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 952 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 3/143 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 - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 21]: Loop Invariant Derived loop invariant: (((((((i <= 3) && (2 < i)) || ((3 < i) && (i <= 4))) || ((0 < i) && (i <= 1))) || ((4 < i) && (i <= 5))) || ((i <= 0) && (0 <= i))) || ((1 < i) && (i <= 2))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.40ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 108.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.90ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 106.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.10ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 428.52ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 91.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3250.26ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 110.1MB in the end (delta: -19.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 110.10ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 105.2MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-13 21:04:23,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e551e16-dc86-4084-bd0f-b13a52981b91/bin/ukojak-verify-EEHR8qb7sm/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