./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL --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 4cf25ea48272ba4463d41281066a1cec5687f4083cfa8522d5a9622c6308689c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:20:28,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:20:28,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:20:28,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:20:28,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:20:28,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:20:28,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:20:28,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:20:28,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:20:28,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:20:28,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:20:28,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:20:28,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:20:28,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:20:28,357 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:20:28,358 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:20:28,358 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:20:28,358 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:20:28,359 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:20:28,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:20:28,360 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:20:28,361 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:20:28,361 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:20:28,362 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:20:28,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:20:28,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:20:28,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:20:28,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:20:28,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:20:28,366 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:20:28,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:20:28,368 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:20:28,368 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_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cf25ea48272ba4463d41281066a1cec5687f4083cfa8522d5a9622c6308689c [2023-11-19 03:20:28,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:20:28,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:20:28,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:20:28,776 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:20:28,777 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:20:28,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2023-11-19 03:20:32,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:20:32,208 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:20:32,209 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2023-11-19 03:20:32,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/data/09690b4dd/993093f3503c440b8f5f8ad74d81df45/FLAGf35c6ace9 [2023-11-19 03:20:32,232 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/data/09690b4dd/993093f3503c440b8f5f8ad74d81df45 [2023-11-19 03:20:32,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:20:32,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:20:32,238 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:20:32,238 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:20:32,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:20:32,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fe5ac81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32, skipping insertion in model container [2023-11-19 03:20:32,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,266 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:20:32,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:20:32,462 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:20:32,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:20:32,491 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:20:32,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32 WrapperNode [2023-11-19 03:20:32,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:20:32,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:20:32,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:20:32,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:20:32,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,523 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-11-19 03:20:32,524 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:20:32,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:20:32,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:20:32,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:20:32,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:20:32,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:20:32,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:20:32,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:20:32,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:32,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:20:32,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:20:32,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:20:32,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:20:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:20:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:20:32,752 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:20:32,754 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:20:32,926 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:20:32,965 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:20:32,966 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:20:32,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:32 BoogieIcfgContainer [2023-11-19 03:20:32,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:20:32,975 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:20:32,975 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:20:32,988 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:20:32,988 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:32" (1/1) ... [2023-11-19 03:20:33,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:20:33,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:33,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-19 03:20:33,086 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-19 03:20:33,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:20:33,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:33,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:20:33,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2023-11-19 03:20:33,324 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-11-19 03:20:33,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:20:33,325 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:33,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:33,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:20:33,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:33,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2023-11-19 03:20:33,483 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2023-11-19 03:20:33,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:20:33,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:33,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:33,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:20:33,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:33,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2023-11-19 03:20:33,718 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2023-11-19 03:20:33,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:20:33,719 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:33,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:20:33,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:33,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2023-11-19 03:20:33,964 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2023-11-19 03:20:33,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:20:33,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:33,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:34,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:20:34,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:34,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2023-11-19 03:20:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-11-19 03:20:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:20:34,134 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:34,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:20:34,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-19 03:20:34,289 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-19 03:20:34,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:20:34,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:34,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:34,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:20:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-11-19 03:20:34,614 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-19 03:20:34,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:20:34,615 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:34,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:34,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 03:20:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2023-11-19 03:20:34,767 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2023-11-19 03:20:34,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:20:34,769 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:34,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 03:20:35,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2023-11-19 03:20:35,485 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2023-11-19 03:20:35,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:20:35,485 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:35,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:20:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:35,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-11-19 03:20:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-11-19 03:20:35,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 03:20:35,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:35,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:35,712 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:20:35,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:35,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2023-11-19 03:20:35,856 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-11-19 03:20:35,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:20:35,857 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2023-11-19 03:20:35,867 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-19 03:20:35,977 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2023-11-19 03:20:35,989 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-19 03:20:35,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:20:35 ImpRootNode [2023-11-19 03:20:35,990 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:20:35,991 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:20:35,991 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:20:35,991 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:20:35,992 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:32" (3/4) ... [2023-11-19 03:20:35,996 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:20:36,007 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 03:20:36,008 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 03:20:36,008 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 03:20:36,096 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:20:36,097 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:20:36,097 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:20:36,098 INFO L158 Benchmark]: Toolchain (without parser) took 3860.81ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 85.8MB in the beginning and 81.2MB in the end (delta: 4.6MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2023-11-19 03:20:36,098 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:20:36,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.95ms. Allocated memory is still 123.7MB. Free memory was 85.8MB in the beginning and 76.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:20:36,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.10ms. Allocated memory is still 123.7MB. Free memory was 76.2MB in the beginning and 74.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:20:36,099 INFO L158 Benchmark]: Boogie Preprocessor took 20.12ms. Allocated memory is still 123.7MB. Free memory was 74.9MB in the beginning and 74.1MB in the end (delta: 830.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:20:36,100 INFO L158 Benchmark]: RCFGBuilder took 427.10ms. Allocated memory is still 123.7MB. Free memory was 74.1MB in the beginning and 64.4MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:20:36,100 INFO L158 Benchmark]: CodeCheck took 3015.43ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 64.0MB in the beginning and 85.4MB in the end (delta: -21.4MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-11-19 03:20:36,101 INFO L158 Benchmark]: Witness Printer took 105.99ms. Allocated memory is still 155.2MB. Free memory was 85.4MB in the beginning and 81.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:20:36,103 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 289 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 245 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 232 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 997 IncrementalHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 232 mSolverCounterUnsat, 22 mSDtfsCounter, 997 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 754 GetRequests, 654 SyntacticMatches, 36 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1578 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 211 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 37/50 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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: 19]: Loop Invariant Derived loop invariant: (((x <= 1073741823) && (0 <= x)) && (1 <= y)) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (x <= 2147483647) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.95ms. Allocated memory is still 123.7MB. Free memory was 85.8MB in the beginning and 76.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.10ms. Allocated memory is still 123.7MB. Free memory was 76.2MB in the beginning and 74.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.12ms. Allocated memory is still 123.7MB. Free memory was 74.9MB in the beginning and 74.1MB in the end (delta: 830.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 427.10ms. Allocated memory is still 123.7MB. Free memory was 74.1MB in the beginning and 64.4MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 3015.43ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 64.0MB in the beginning and 85.4MB in the end (delta: -21.4MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Witness Printer took 105.99ms. Allocated memory is still 155.2MB. Free memory was 85.4MB in the beginning and 81.2MB 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! [2023-11-19 03:20:36,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b840211-5ffd-44a5-aa8b-4264741db81c/bin/ukojak-verify-G8NBE6pJGL/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