./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9 --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 92296dc205042e203e49a0f508dfdcdcae7c81ca61407e6509b5b78fafc04385 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:50:55,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:50:55,177 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 03:50:55,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:50:55,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:50:55,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:50:55,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:50:55,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:50:55,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:50:55,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:50:55,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:50:55,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:50:55,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:50:55,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:50:55,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:50:55,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:50:55,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:50:55,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:50:55,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:50:55,214 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:50:55,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:50:55,215 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:50:55,216 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:50:55,216 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:50:55,216 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:50:55,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:50:55,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:50:55,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:50:55,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:50:55,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:50:55,219 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:50:55,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:50:55,220 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:50:55,220 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_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92296dc205042e203e49a0f508dfdcdcae7c81ca61407e6509b5b78fafc04385 [2023-12-03 03:50:55,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:50:55,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:50:55,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:50:55,468 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:50:55,469 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:50:55,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/loops/while_infinite_loop_3.c [2023-12-03 03:50:58,216 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:50:58,371 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:50:58,372 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/sv-benchmarks/c/loops/while_infinite_loop_3.c [2023-12-03 03:50:58,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/data/9eb15375a/e055e6155f84455fa940b6fc8e942158/FLAG16456d505 [2023-12-03 03:50:58,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/data/9eb15375a/e055e6155f84455fa940b6fc8e942158 [2023-12-03 03:50:58,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:50:58,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:50:58,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:50:58,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:50:58,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:50:58,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22646b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58, skipping insertion in model container [2023-12-03 03:50:58,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,425 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:50:58,557 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_f6345ecc-f35f-4c40-b9ba-478a593d6aee/sv-benchmarks/c/loops/while_infinite_loop_3.c[333,346] [2023-12-03 03:50:58,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:50:58,578 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:50:58,588 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_f6345ecc-f35f-4c40-b9ba-478a593d6aee/sv-benchmarks/c/loops/while_infinite_loop_3.c[333,346] [2023-12-03 03:50:58,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:50:58,604 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:50:58,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58 WrapperNode [2023-12-03 03:50:58,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:50:58,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:50:58,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:50:58,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:50:58,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,637 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-12-03 03:50:58,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:50:58,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:50:58,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:50:58,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:50:58,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:50:58,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:50:58,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:50:58,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:50:58,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:50:58,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:50:58,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:50:58,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:50:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:50:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:50:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:50:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:50:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 03:50:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 03:50:58,782 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:50:58,784 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:50:58,862 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:50:58,891 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:50:58,891 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 03:50:58,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:50:58 BoogieIcfgContainer [2023-12-03 03:50:58,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:50:58,894 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:50:58,894 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:50:58,903 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:50:58,903 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:50:58" (1/1) ... [2023-12-03 03:50:58,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:50:58,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:50:58,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-12-03 03:50:58,959 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-03 03:50:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 03:50:58,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:50:58,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:50:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:50:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:50:59,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:50:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 9 transitions. [2023-12-03 03:50:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-12-03 03:50:59,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 03:50:59,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:50:59,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:50:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:50:59,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:50:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:50:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 7 transitions. [2023-12-03 03:50:59,315 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2023-12-03 03:50:59,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 03:50:59,316 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2023-12-03 03:50:59,324 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 03:50:59,334 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:50:59,336 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:50:59,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:50:59 ImpRootNode [2023-12-03 03:50:59,337 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:50:59,338 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:50:59,338 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:50:59,338 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:50:59,338 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:50:58" (3/4) ... [2023-12-03 03:50:59,340 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 03:50:59,343 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 03:50:59,346 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-12-03 03:50:59,346 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-03 03:50:59,346 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-03 03:50:59,346 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 03:50:59,424 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 03:50:59,424 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 03:50:59,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:50:59,425 INFO L158 Benchmark]: Toolchain (without parser) took 1028.81ms. Allocated memory is still 127.9MB. Free memory was 84.2MB in the beginning and 90.3MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:50:59,426 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory was 100.9MB in the beginning and 100.7MB in the end (delta: 159.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:50:59,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.29ms. Allocated memory is still 127.9MB. Free memory was 84.2MB in the beginning and 73.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 03:50:59,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.34ms. Allocated memory is still 127.9MB. Free memory was 73.9MB in the beginning and 72.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:50:59,427 INFO L158 Benchmark]: Boogie Preprocessor took 19.43ms. Allocated memory is still 127.9MB. Free memory was 72.3MB in the beginning and 71.6MB in the end (delta: 776.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:50:59,428 INFO L158 Benchmark]: RCFGBuilder took 235.14ms. Allocated memory is still 127.9MB. Free memory was 71.6MB in the beginning and 61.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 03:50:59,428 INFO L158 Benchmark]: CodeCheck took 443.28ms. Allocated memory is still 127.9MB. Free memory was 61.4MB in the beginning and 94.4MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:50:59,429 INFO L158 Benchmark]: Witness Printer took 86.90ms. Allocated memory is still 127.9MB. Free memory was 94.4MB in the beginning and 90.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:50:59,432 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 20 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 7]: 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: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory was 100.9MB in the beginning and 100.7MB in the end (delta: 159.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.29ms. Allocated memory is still 127.9MB. Free memory was 84.2MB in the beginning and 73.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.34ms. Allocated memory is still 127.9MB. Free memory was 73.9MB in the beginning and 72.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.43ms. Allocated memory is still 127.9MB. Free memory was 72.3MB in the beginning and 71.6MB in the end (delta: 776.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 235.14ms. Allocated memory is still 127.9MB. Free memory was 71.6MB in the beginning and 61.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 443.28ms. Allocated memory is still 127.9MB. Free memory was 61.4MB in the beginning and 94.4MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 86.90ms. Allocated memory is still 127.9MB. Free memory was 94.4MB in the beginning and 90.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 03:50:59,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6345ecc-f35f-4c40-b9ba-478a593d6aee/bin/ukojak-verify-Qdu7aM0XO9/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