./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk --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 64bit --witnessprinter.graph.data.programhash bd5ab01fc166812a75c8bdc5c42111290012e12e0fb0aba380271d0f3f7f7767 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:06:36,355 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:06:36,423 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:06:36,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:06:36,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:06:36,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:06:36,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:06:36,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:06:36,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:06:36,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:06:36,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:06:36,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:06:36,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:06:36,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:06:36,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:06:36,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:06:36,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:06:36,476 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:06:36,477 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:06:36,481 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:06:36,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:06:36,482 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:06:36,482 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:06:36,483 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:06:36,483 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:06:36,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:06:36,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:06:36,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:06:36,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:06:36,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:06:36,485 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:06:36,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:06:36,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd5ab01fc166812a75c8bdc5c42111290012e12e0fb0aba380271d0f3f7f7767 [2024-11-09 00:06:36,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:06:36,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:06:36,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:06:36,829 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:06:36,830 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:06:36,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/termination-restricted-15/b.16.c Unable to find full path for "g++" [2024-11-09 00:06:38,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:06:38,964 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:06:38,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/sv-benchmarks/c/termination-restricted-15/b.16.c [2024-11-09 00:06:38,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/data/916bca71e/e58c7157b15d4aa1bfc0cce883d3b74d/FLAG60145dc1f [2024-11-09 00:06:38,987 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/data/916bca71e/e58c7157b15d4aa1bfc0cce883d3b74d [2024-11-09 00:06:38,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:06:38,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:06:38,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:06:38,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:06:39,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:06:39,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:06:38" (1/1) ... [2024-11-09 00:06:39,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef1c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39, skipping insertion in model container [2024-11-09 00:06:39,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:06:38" (1/1) ... [2024-11-09 00:06:39,037 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:06:39,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:06:39,263 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:06:39,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:06:39,291 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:06:39,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39 WrapperNode [2024-11-09 00:06:39,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:06:39,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:06:39,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:06:39,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:06:39,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,321 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2024-11-09 00:06:39,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:06:39,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:06:39,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:06:39,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:06:39,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,333 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:06:39,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:06:39,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:06:39,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:06:39,342 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:06:39,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:06:39,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:06:39,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:06:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:06:39,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:06:39,502 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:06:39,505 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:06:39,626 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-09 00:06:39,627 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:06:39,656 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:06:39,657 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:06:39,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:06:39 BoogieIcfgContainer [2024-11-09 00:06:39,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:06:39,660 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:06:39,660 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:06:39,671 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:06:39,672 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:06:39" (1/1) ... [2024-11-09 00:06:39,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:06:39,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:39,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2024-11-09 00:06:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-11-09 00:06:39,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 00:06:39,754 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:39,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:39,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:39,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2024-11-09 00:06:39,948 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2024-11-09 00:06:39,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:06:39,948 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:39,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:39,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:40,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:40,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2024-11-09 00:06:40,092 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2024-11-09 00:06:40,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:06:40,094 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:40,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:40,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:40,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-11-09 00:06:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-09 00:06:40,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:06:40,201 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:40,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:40,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:40,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:40,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-11-09 00:06:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-11-09 00:06:40,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:06:40,301 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:40,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:40,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:40,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2024-11-09 00:06:40,692 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2024-11-09 00:06:40,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:06:40,693 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:40,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:06:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:40,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2024-11-09 00:06:40,941 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2024-11-09 00:06:40,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:06:40,942 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:40,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:06:41,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:41,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 31 states and 41 transitions. [2024-11-09 00:06:41,228 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2024-11-09 00:06:41,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 00:06:41,229 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:06:41,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:06:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:06:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:06:41,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:06:41,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2024-11-09 00:06:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-11-09 00:06:41,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 00:06:41,485 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-11-09 00:06:41,494 INFO L729 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2024-11-09 00:06:41,547 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2024-11-09 00:06:41,547 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-09 00:06:41,547 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2024-11-09 00:06:41,548 INFO L77 FloydHoareUtils]: At program point L15(line 15) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 0)) [2024-11-09 00:06:41,548 INFO L77 FloydHoareUtils]: At program point L13(line 13) the Hoare annotation is: (and (< 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2024-11-09 00:06:41,548 INFO L77 FloydHoareUtils]: At program point L13-1(line 13) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2024-11-09 00:06:41,549 INFO L77 FloydHoareUtils]: At program point L11-1(lines 11 16) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2024-11-09 00:06:41,549 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-09 00:06:41,549 INFO L77 FloydHoareUtils]: At program point L11-3(lines 11 16) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2024-11-09 00:06:41,550 INFO L77 FloydHoareUtils]: At program point L11-4(lines 11 16) the Hoare annotation is: true [2024-11-09 00:06:41,550 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2024-11-09 00:06:41,550 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2024-11-09 00:06:41,550 INFO L77 FloydHoareUtils]: At program point L12-1(lines 12 14) the Hoare annotation is: (and (< 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2024-11-09 00:06:41,551 INFO L77 FloydHoareUtils]: At program point L12-3(lines 12 14) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2024-11-09 00:06:41,551 INFO L77 FloydHoareUtils]: At program point L12-4(lines 12 14) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 0)) [2024-11-09 00:06:41,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:06:41 ImpRootNode [2024-11-09 00:06:41,565 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:06:41,566 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:06:41,566 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:06:41,566 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:06:41,567 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:06:39" (3/4) ... [2024-11-09 00:06:41,569 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 00:06:41,577 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 00:06:41,577 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 00:06:41,577 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 00:06:41,665 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:06:41,665 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-09 00:06:41,666 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:06:41,666 INFO L158 Benchmark]: Toolchain (without parser) took 2675.09ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 119.8MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-09 00:06:41,667 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:06:41,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.72ms. Allocated memory is still 169.9MB. Free memory was 137.8MB in the beginning and 135.4MB in the end (delta: 2.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-11-09 00:06:41,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.02ms. Allocated memory is still 169.9MB. Free memory was 135.4MB in the beginning and 134.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:06:41,668 INFO L158 Benchmark]: Boogie Preprocessor took 17.05ms. Allocated memory is still 169.9MB. Free memory was 134.3MB in the beginning and 133.4MB in the end (delta: 914.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:06:41,668 INFO L158 Benchmark]: RCFGBuilder took 318.61ms. Allocated memory is still 169.9MB. Free memory was 133.4MB in the beginning and 123.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 00:06:41,672 INFO L158 Benchmark]: CodeCheck took 1905.40ms. Allocated memory is still 169.9MB. Free memory was 122.7MB in the beginning and 123.9MB in the end (delta: -1.3MB). Peak memory consumption was 811.6kB. Max. memory is 16.1GB. [2024-11-09 00:06:41,672 INFO L158 Benchmark]: Witness Printer took 99.92ms. Allocated memory is still 169.9MB. Free memory was 123.9MB in the beginning and 119.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:06:41,676 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, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 234 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 174 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 510 IncrementalHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 70 mSDtfsCounter, 510 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 537 GetRequests, 480 SyntacticMatches, 15 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 5/5 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: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (((x <= 2147483647) && (1 <= x)) && (y <= 2147483647)) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((x <= 2147483647) && (y <= 2147483647)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.72ms. Allocated memory is still 169.9MB. Free memory was 137.8MB in the beginning and 135.4MB in the end (delta: 2.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.02ms. Allocated memory is still 169.9MB. Free memory was 135.4MB in the beginning and 134.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.05ms. Allocated memory is still 169.9MB. Free memory was 134.3MB in the beginning and 133.4MB in the end (delta: 914.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 318.61ms. Allocated memory is still 169.9MB. Free memory was 133.4MB in the beginning and 123.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1905.40ms. Allocated memory is still 169.9MB. Free memory was 122.7MB in the beginning and 123.9MB in the end (delta: -1.3MB). Peak memory consumption was 811.6kB. Max. memory is 16.1GB. * Witness Printer took 99.92ms. Allocated memory is still 169.9MB. Free memory was 123.9MB in the beginning and 119.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-09 00:06:41,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8406015-04d4-4ef7-9d56-4a1c6e638001/bin/ukojak-verify-ImItNfHLgk/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