./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/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_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbc7fc96c6d4708331280184201322c719c7fb1504d84fafd0b9583653597d2e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:45:23,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:45:23,299 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:45:23,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:45:23,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:45:23,332 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:45:23,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:45:23,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:45:23,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:45:23,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:45:23,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:45:23,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:45:23,338 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:45:23,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:45:23,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:45:23,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:45:23,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:45:23,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:45:23,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:45:23,342 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:45:23,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:45:23,344 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:45:23,344 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:45:23,345 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:45:23,345 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:45:23,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:45:23,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:45:23,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:45:23,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:45:23,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:45:23,348 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:45:23,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:45:23,349 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:45:23,350 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_f91debbe-5be2-4d10-ad68-1a731402b6cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbc7fc96c6d4708331280184201322c719c7fb1504d84fafd0b9583653597d2e [2023-11-19 02:45:23,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:45:23,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:45:23,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:45:23,728 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:45:23,729 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:45:23,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c [2023-11-19 02:45:26,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:45:27,222 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:45:27,223 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c [2023-11-19 02:45:27,231 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/data/7cebea6bc/558f045ce0da46e6895141a04eee0856/FLAG51138c680 [2023-11-19 02:45:27,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/data/7cebea6bc/558f045ce0da46e6895141a04eee0856 [2023-11-19 02:45:27,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:45:27,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:45:27,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:45:27,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:45:27,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:45:27,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f91de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27, skipping insertion in model container [2023-11-19 02:45:27,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,285 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:45:27,452 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c[458,471] [2023-11-19 02:45:27,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:45:27,484 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:45:27,498 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound2.c[458,471] [2023-11-19 02:45:27,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:45:27,523 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:45:27,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27 WrapperNode [2023-11-19 02:45:27,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:45:27,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:45:27,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:45:27,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:45:27,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,561 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2023-11-19 02:45:27,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:45:27,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:45:27,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:45:27,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:45:27,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:45:27,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:45:27,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:45:27,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:45:27,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:27" (1/1) ... [2023-11-19 02:45:27,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:45:27,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:45:27,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:45:27,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:45:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:45:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 02:45:27,692 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 02:45:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:45:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:45:27,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:45:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:45:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:45:27,767 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:45:27,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:45:28,013 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:45:28,062 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:45:28,062 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:45:28,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:28 BoogieIcfgContainer [2023-11-19 02:45:28,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:45:28,068 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:45:28,069 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:45:28,080 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:45:28,081 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:28" (1/1) ... [2023-11-19 02:45:28,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:45:28,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:28,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-19 02:45:28,158 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-19 02:45:28,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:45:28,162 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:28,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:28,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:45:28,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:28,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:45:28,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-19 02:45:28,513 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-19 02:45:28,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:45:28,514 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:28,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:28,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 02:45:28,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:28,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:45:28,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:28,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 02:45:28,781 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 02:45:28,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 02:45:28,783 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:28,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:28,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 02:45:28,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:45:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:29,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2023-11-19 02:45:29,034 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2023-11-19 02:45:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 02:45:29,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:29,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:29,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 02:45:29,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:29,193 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:45:29,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:29,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2023-11-19 02:45:29,313 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-11-19 02:45:29,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 02:45:29,315 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:29,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:29,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 02:45:29,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:29,407 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:45:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2023-11-19 02:45:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2023-11-19 02:45:29,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 02:45:29,444 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:29,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:29,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 02:45:29,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 02:45:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2023-11-19 02:45:29,955 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2023-11-19 02:45:29,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 02:45:29,957 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:29,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:30,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 02:45:30,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:30,138 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 02:45:30,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:30,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2023-11-19 02:45:30,465 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2023-11-19 02:45:30,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 02:45:30,466 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:30,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:30,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 02:45:30,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:30,748 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 02:45:31,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:31,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 43 states and 71 transitions. [2023-11-19 02:45:31,418 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 71 transitions. [2023-11-19 02:45:31,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 02:45:31,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:31,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:31,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 02:45:31,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:31,747 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 02:45:32,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 33 states and 45 transitions. [2023-11-19 02:45:32,946 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2023-11-19 02:45:32,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 02:45:32,948 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:32,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:32,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 02:45:32,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:33,261 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 02:45:34,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:34,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 27 states and 37 transitions. [2023-11-19 02:45:34,359 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2023-11-19 02:45:34,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:45:34,360 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-19 02:45:34,376 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 02:45:34,649 INFO L560 CodeCheckObserver]: Invariant with dag size 20 [2023-11-19 02:45:34,657 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:45:34,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:45:34 ImpRootNode [2023-11-19 02:45:34,658 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:45:34,659 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:45:34,659 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:45:34,659 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:45:34,660 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:28" (3/4) ... [2023-11-19 02:45:34,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:45:34,666 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 02:45:34,666 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 02:45:34,670 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 02:45:34,671 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 02:45:34,671 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:45:34,671 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:45:34,771 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:45:34,771 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:45:34,772 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:45:34,773 INFO L158 Benchmark]: Toolchain (without parser) took 7521.96ms. Allocated memory is still 144.7MB. Free memory was 100.9MB in the beginning and 69.9MB in the end (delta: 31.0MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2023-11-19 02:45:34,773 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 100.7MB. Free memory was 76.3MB in the beginning and 76.2MB in the end (delta: 109.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:45:34,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.77ms. Allocated memory is still 144.7MB. Free memory was 100.9MB in the beginning and 89.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:45:34,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.26ms. Allocated memory is still 144.7MB. Free memory was 89.8MB in the beginning and 88.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:45:34,775 INFO L158 Benchmark]: Boogie Preprocessor took 24.17ms. Allocated memory is still 144.7MB. Free memory was 88.3MB in the beginning and 87.7MB in the end (delta: 625.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:45:34,775 INFO L158 Benchmark]: RCFGBuilder took 480.13ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 75.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:45:34,776 INFO L158 Benchmark]: CodeCheck took 6589.81ms. Allocated memory is still 144.7MB. Free memory was 75.7MB in the beginning and 74.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2023-11-19 02:45:34,776 INFO L158 Benchmark]: Witness Printer took 113.09ms. Allocated memory is still 144.7MB. Free memory was 74.1MB in the beginning and 69.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:45:34,779 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 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 529 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 448 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 164 mSDsCounter, 281 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 773 IncrementalHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 281 mSolverCounterUnsat, 284 mSDtfsCounter, 773 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1922 GetRequests, 1795 SyntacticMatches, 31 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3859 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 235 ConstructedInterpolants, 0 QuantifiedInterpolants, 736 SizeOfPredicates, 16 NumberOfNonLiveVariables, 797 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 126/155 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: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((!(((2 == y) && (x == 33))) || ((2 <= k) && (c <= 2))) || !((((0 <= k) && (2 <= c)) && (k <= 2)))) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 100.7MB. Free memory was 76.3MB in the beginning and 76.2MB in the end (delta: 109.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.77ms. Allocated memory is still 144.7MB. Free memory was 100.9MB in the beginning and 89.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.26ms. Allocated memory is still 144.7MB. Free memory was 89.8MB in the beginning and 88.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.17ms. Allocated memory is still 144.7MB. Free memory was 88.3MB in the beginning and 87.7MB in the end (delta: 625.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 480.13ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 75.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 6589.81ms. Allocated memory is still 144.7MB. Free memory was 75.7MB in the beginning and 74.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Witness Printer took 113.09ms. Allocated memory is still 144.7MB. Free memory was 74.1MB in the beginning and 69.9MB 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 02:45:34,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f91debbe-5be2-4d10-ad68-1a731402b6cb/bin/ukojak-verify-G8NBE6pJGL/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