./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi --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 0b3c6d5b6497aa5ff0eb68154ec5345da59cc3565c3dc280e241d196cfa0cbf4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:16:38,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:16:38,392 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:16:38,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:16:38,405 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:16:38,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:16:38,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:16:38,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:16:38,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:16:38,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:16:38,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:16:38,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:16:38,460 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:16:38,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:16:38,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:16:38,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:16:38,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:16:38,466 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:16:38,466 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:16:38,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:16:38,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:16:38,469 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:16:38,470 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:16:38,471 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:16:38,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:16:38,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:38,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:16:38,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:16:38,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:16:38,475 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:16:38,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:16:38,478 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:16:38,478 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_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b3c6d5b6497aa5ff0eb68154ec5345da59cc3565c3dc280e241d196cfa0cbf4 [2023-11-24 22:16:38,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:16:38,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:16:38,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:16:38,943 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:16:38,944 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:16:38,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c [2023-11-24 22:16:42,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:16:43,033 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:16:43,034 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c [2023-11-24 22:16:43,043 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/data/69cee5ccf/b016187cd9e747a480496b878dff1556/FLAG121ce4c18 [2023-11-24 22:16:43,061 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/data/69cee5ccf/b016187cd9e747a480496b878dff1556 [2023-11-24 22:16:43,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:16:43,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:16:43,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:43,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:16:43,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:16:43,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a58279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43, skipping insertion in model container [2023-11-24 22:16:43,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,106 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:16:43,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:43,333 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:16:43,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:43,407 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:16:43,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43 WrapperNode [2023-11-24 22:16:43,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:43,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:43,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:16:43,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:16:43,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,452 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-11-24 22:16:43,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:43,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:16:43,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:16:43,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:16:43,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:16:43,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:16:43,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:16:43,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:16:43,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:43,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:16:43,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:16:43,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:16:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:16:43,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:16:43,690 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:16:43,693 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:16:43,851 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:16:43,901 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:16:43,901 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:16:43,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:43 BoogieIcfgContainer [2023-11-24 22:16:43,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:16:43,905 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:16:43,905 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:16:43,921 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:16:43,921 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:43" (1/1) ... [2023-11-24 22:16:43,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:16:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:43,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-24 22:16:43,995 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-24 22:16:43,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:16:43,998 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:43,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-24 22:16:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-24 22:16:44,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:16:44,299 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:44,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:44,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-24 22:16:44,566 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-24 22:16:44,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:16:44,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:44,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:44,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:16:44,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:44,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-24 22:16:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-24 22:16:44,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:16:44,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:44,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:44,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-24 22:16:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-24 22:16:44,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:16:44,861 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:44,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 22:16:45,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2023-11-24 22:16:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-24 22:16:45,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:16:45,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:45,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 22:16:46,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:46,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2023-11-24 22:16:46,445 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-24 22:16:46,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:16:46,446 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:46,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:46,546 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-24 22:16:46,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:46,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-24 22:16:46,640 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-24 22:16:46,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:16:46,641 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-11-24 22:16:46,652 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-24 22:16:46,791 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2023-11-24 22:16:46,800 INFO L560 CodeCheckObserver]: Invariant with dag size 11 [2023-11-24 22:16:46,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:16:46 ImpRootNode [2023-11-24 22:16:46,801 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:16:46,802 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:16:46,802 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:16:46,803 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:16:46,803 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:43" (3/4) ... [2023-11-24 22:16:46,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:16:46,816 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-24 22:16:46,816 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 22:16:46,816 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-24 22:16:47,015 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:16:47,015 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:16:47,016 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:16:47,017 INFO L158 Benchmark]: Toolchain (without parser) took 3950.14ms. Allocated memory was 138.4MB in the beginning and 195.0MB in the end (delta: 56.6MB). Free memory was 77.1MB in the beginning and 160.9MB in the end (delta: -83.8MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-11-24 22:16:47,017 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 138.4MB. Free memory was 103.2MB in the beginning and 103.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:16:47,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.48ms. Allocated memory was 138.4MB in the beginning and 195.0MB in the end (delta: 56.6MB). Free memory was 76.8MB in the beginning and 165.1MB in the end (delta: -88.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-11-24 22:16:47,019 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.49ms. Allocated memory is still 195.0MB. Free memory was 165.0MB in the beginning and 163.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:16:47,019 INFO L158 Benchmark]: Boogie Preprocessor took 30.43ms. Allocated memory is still 195.0MB. Free memory was 163.7MB in the beginning and 162.7MB in the end (delta: 953.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:16:47,020 INFO L158 Benchmark]: RCFGBuilder took 418.72ms. Allocated memory is still 195.0MB. Free memory was 162.6MB in the beginning and 155.5MB in the end (delta: 7.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-11-24 22:16:47,020 INFO L158 Benchmark]: CodeCheck took 2896.63ms. Allocated memory is still 195.0MB. Free memory was 155.5MB in the beginning and 131.8MB in the end (delta: 23.7MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-11-24 22:16:47,021 INFO L158 Benchmark]: Witness Printer took 213.52ms. Allocated memory is still 195.0MB. Free memory was 131.8MB in the beginning and 160.9MB in the end (delta: -29.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 22:16:47,024 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: 2.7s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 170 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 485 IncrementalHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 22 mSDtfsCounter, 485 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 509 GetRequests, 427 SyntacticMatches, 20 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1648 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 41/42 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: 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 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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: (0 <= (x1 + 2147483648)) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((x2 <= 1000) && (x1 <= 10)) && (0 <= (x1 + 2147483648))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 138.4MB. Free memory was 103.2MB in the beginning and 103.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.48ms. Allocated memory was 138.4MB in the beginning and 195.0MB in the end (delta: 56.6MB). Free memory was 76.8MB in the beginning and 165.1MB in the end (delta: -88.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.49ms. Allocated memory is still 195.0MB. Free memory was 165.0MB in the beginning and 163.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.43ms. Allocated memory is still 195.0MB. Free memory was 163.7MB in the beginning and 162.7MB in the end (delta: 953.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 418.72ms. Allocated memory is still 195.0MB. Free memory was 162.6MB in the beginning and 155.5MB in the end (delta: 7.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * CodeCheck took 2896.63ms. Allocated memory is still 195.0MB. Free memory was 155.5MB in the beginning and 131.8MB in the end (delta: 23.7MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Witness Printer took 213.52ms. Allocated memory is still 195.0MB. Free memory was 131.8MB in the beginning and 160.9MB in the end (delta: -29.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:16:47,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c743915-2450-46ad-b0f5-9a5532c4f6db/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE