./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/gcd_4.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_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/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_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/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_38608df0-a5b1-47c5-8200-2d8d63009fcc/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 679f2fe8d678884423b2dff47bf2c3c7ede0374b3a8bb68f9a9e8a332d8776ef --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:36:26,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:36:26,572 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:36:26,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:36:26,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:36:26,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:36:26,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:36:26,624 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:36:26,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:36:26,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:36:26,632 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:36:26,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:36:26,633 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:36:26,635 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:36:26,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:36:26,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:36:26,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:36:26,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:36:26,638 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:36:26,639 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:36:26,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:36:26,640 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:36:26,641 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:36:26,641 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:36:26,642 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:36:26,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:36:26,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:36:26,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:36:26,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:36:26,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:36:26,646 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:36:26,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:36:26,647 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:36:26,648 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_38608df0-a5b1-47c5-8200-2d8d63009fcc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 679f2fe8d678884423b2dff47bf2c3c7ede0374b3a8bb68f9a9e8a332d8776ef [2023-11-19 02:36:27,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:36:27,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:36:27,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:36:27,038 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:36:27,039 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:36:27,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/bitvector/gcd_4.c [2023-11-19 02:36:30,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:36:30,383 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:36:30,385 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/sv-benchmarks/c/bitvector/gcd_4.c [2023-11-19 02:36:30,395 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/data/cb3cc96ae/75b0c8f8d2744d1497fae8b1b37ddf05/FLAG0981733a2 [2023-11-19 02:36:30,419 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/data/cb3cc96ae/75b0c8f8d2744d1497fae8b1b37ddf05 [2023-11-19 02:36:30,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:36:30,429 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:36:30,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:36:30,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:36:30,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:36:30,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b36cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30, skipping insertion in model container [2023-11-19 02:36:30,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,498 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:36:30,732 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_38608df0-a5b1-47c5-8200-2d8d63009fcc/sv-benchmarks/c/bitvector/gcd_4.c[662,675] [2023-11-19 02:36:30,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:36:30,759 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:36:30,775 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_38608df0-a5b1-47c5-8200-2d8d63009fcc/sv-benchmarks/c/bitvector/gcd_4.c[662,675] [2023-11-19 02:36:30,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:36:30,799 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:36:30,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30 WrapperNode [2023-11-19 02:36:30,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:36:30,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:36:30,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:36:30,803 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:36:30,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,852 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-11-19 02:36:30,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:36:30,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:36:30,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:36:30,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:36:30,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:36:30,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:36:30,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:36:30,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:36:30,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:30" (1/1) ... [2023-11-19 02:36:30,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:36:30,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:36:30,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:36:30,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:36:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:36:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:36:30,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:36:30,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:36:30,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:36:30,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:36:31,040 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:36:31,044 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:36:31,313 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:36:31,440 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:36:31,440 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:36:31,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:31 BoogieIcfgContainer [2023-11-19 02:36:31,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:36:31,448 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:36:31,448 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:36:31,462 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:36:31,462 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:31" (1/1) ... [2023-11-19 02:36:31,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:36:31,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:31,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2023-11-19 02:36:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-11-19 02:36:31,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:36:31,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:31,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:36:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:36:31,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 02:36:31,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:36:31,996 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 02:36:32,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:32,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-19 02:36:32,056 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-19 02:36:32,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:36:32,057 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:32,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:36:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:36:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:36:32,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 02:36:32,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:36:32,223 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 02:36:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:32,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2023-11-19 02:36:32,335 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-11-19 02:36:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:36:32,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:32,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:36:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:36:32,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 02:36:32,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:36:32,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:36:32,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:32,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2023-11-19 02:36:32,614 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2023-11-19 02:36:32,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:36:32,615 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:32,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:36:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:36:32,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 02:36:32,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:36:32,783 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 02:36:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:32,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2023-11-19 02:36:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2023-11-19 02:36:32,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 02:36:32,927 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:32,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:36:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:36:32,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 02:36:32,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:36:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:36:33,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:33,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2023-11-19 02:36:33,217 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2023-11-19 02:36:33,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:36:33,217 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:33,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:36:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:36:33,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 02:36:33,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:36:33,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:36:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:33,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 24 states and 41 transitions. [2023-11-19 02:36:33,942 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 41 transitions. [2023-11-19 02:36:33,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:36:33,942 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:33,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:36:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:36:33,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-19 02:36:33,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:36:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:36:35,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:35,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 25 transitions. [2023-11-19 02:36:35,304 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-19 02:36:35,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 02:36:35,308 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:35,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:36:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:36:35,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 02:36:35,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:36:35,931 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:36:38,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:38,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 24 transitions. [2023-11-19 02:36:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-19 02:36:38,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:36:38,471 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:38,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:36:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:36:38,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 02:36:38,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:36:38,867 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 02:36:39,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:39,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 18 states and 19 transitions. [2023-11-19 02:36:39,173 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-11-19 02:36:39,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:36:39,175 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2023-11-19 02:36:39,189 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 02:36:39,265 INFO L560 CodeCheckObserver]: Invariant with dag size 26 [2023-11-19 02:36:39,270 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~x~0 [2023-11-19 02:36:39,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~y~0 [2023-11-19 02:36:39,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~x~0 [2023-11-19 02:36:39,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~y~0 [2023-11-19 02:36:39,275 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~x~0 [2023-11-19 02:36:39,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~y~0 [2023-11-19 02:36:39,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~x~0 [2023-11-19 02:36:39,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~y~0 [2023-11-19 02:36:39,278 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~x~0 [2023-11-19 02:36:39,279 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~y~0 [2023-11-19 02:36:39,279 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~x~0 [2023-11-19 02:36:39,280 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~y~0 [2023-11-19 02:36:39,282 INFO L560 CodeCheckObserver]: Invariant with dag size 10 [2023-11-19 02:36:39,282 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~x~0 [2023-11-19 02:36:39,283 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~y~0 [2023-11-19 02:36:39,283 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:36:39,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:36:39 ImpRootNode [2023-11-19 02:36:39,285 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:36:39,286 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:36:39,286 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:36:39,286 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:36:39,287 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:31" (3/4) ... [2023-11-19 02:36:39,289 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:36:39,293 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 02:36:39,299 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 02:36:39,299 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 02:36:39,299 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 02:36:39,300 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:36:39,300 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:36:39,337 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (9 == \result) [2023-11-19 02:36:39,370 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (9 == \result) [2023-11-19 02:36:39,432 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:36:39,433 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:36:39,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:36:39,434 INFO L158 Benchmark]: Toolchain (without parser) took 9005.45ms. Allocated memory was 123.7MB in the beginning and 195.0MB in the end (delta: 71.3MB). Free memory was 60.3MB in the beginning and 105.1MB in the end (delta: -44.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 02:36:39,435 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:36:39,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.05ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 60.0MB in the beginning and 125.1MB in the end (delta: -65.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-11-19 02:36:39,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.26ms. Allocated memory is still 161.5MB. Free memory was 125.1MB in the beginning and 123.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:36:39,437 INFO L158 Benchmark]: Boogie Preprocessor took 22.55ms. Allocated memory is still 161.5MB. Free memory was 123.7MB in the beginning and 122.9MB in the end (delta: 733.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:36:39,437 INFO L158 Benchmark]: RCFGBuilder took 568.55ms. Allocated memory is still 161.5MB. Free memory was 122.9MB in the beginning and 108.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:36:39,438 INFO L158 Benchmark]: CodeCheck took 7837.54ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 108.3MB in the beginning and 109.3MB in the end (delta: -985.4kB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2023-11-19 02:36:39,439 INFO L158 Benchmark]: Witness Printer took 148.03ms. Allocated memory is still 195.0MB. Free memory was 109.3MB in the beginning and 105.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:36:39,441 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 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 272 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 109 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 328 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 965 IncrementalHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 328 mSolverCounterUnsat, 109 mSDtfsCounter, 965 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1085 GetRequests, 924 SyntacticMatches, 17 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10159 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 418 SizeOfPredicates, 46 NumberOfNonLiveVariables, 661 ConjunctsInSsa, 142 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 10/75 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: 16]: 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: 29]: Loop Invariant Derived loop invariant: (((((((a == 27) && (b == 18)) || ((a == 45) && (b == 18))) || ((b == 0) && (a == 9))) || ((a == 9) && (b == 18))) || ((a == 9) && (b == 9))) || ((a == 63) && (b == 18))) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (9 == \result) - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.05ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 60.0MB in the beginning and 125.1MB in the end (delta: -65.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.26ms. Allocated memory is still 161.5MB. Free memory was 125.1MB in the beginning and 123.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.55ms. Allocated memory is still 161.5MB. Free memory was 123.7MB in the beginning and 122.9MB in the end (delta: 733.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 568.55ms. Allocated memory is still 161.5MB. Free memory was 122.9MB in the beginning and 108.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 7837.54ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 108.3MB in the beginning and 109.3MB in the end (delta: -985.4kB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Witness Printer took 148.03ms. Allocated memory is still 195.0MB. Free memory was 109.3MB in the beginning and 105.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~x~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~x~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~x~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~x~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~x~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~x~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~x~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~y~0 RESULT: Ultimate proved your program to be correct! [2023-11-19 02:36:39,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38608df0-a5b1-47c5-8200-2d8d63009fcc/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