./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/count_by_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/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_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/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_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/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 14fb22a4db5f29ac6c79e8533b9a516d22dc65273f523f7802f7a661fa835fd1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:11:34,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:11:34,203 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:11:34,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:11:34,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:11:34,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:11:34,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:11:34,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:11:34,234 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:11:34,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:11:34,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:11:34,236 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:11:34,236 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:11:34,237 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:11:34,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:11:34,238 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:11:34,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:11:34,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:11:34,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:11:34,240 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:11:34,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:11:34,241 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:11:34,242 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:11:34,242 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:11:34,243 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:11:34,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:11:34,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:11:34,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:11:34,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:11:34,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:11:34,245 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:11:34,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:11:34,246 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:11:34,246 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_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14fb22a4db5f29ac6c79e8533b9a516d22dc65273f523f7802f7a661fa835fd1 [2023-12-02 23:11:34,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:11:34,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:11:34,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:11:34,501 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:11:34,502 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:11:34,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/loop-new/count_by_1.i [2023-12-02 23:11:37,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:11:37,415 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:11:37,415 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/sv-benchmarks/c/loop-new/count_by_1.i [2023-12-02 23:11:37,421 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/data/f98d23174/ea1a32b84ea84b0f875b9ca4e2a202f9/FLAG804058df5 [2023-12-02 23:11:37,435 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/data/f98d23174/ea1a32b84ea84b0f875b9ca4e2a202f9 [2023-12-02 23:11:37,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:11:37,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:11:37,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:11:37,441 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:11:37,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:11:37,446 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e3b3015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37, skipping insertion in model container [2023-12-02 23:11:37,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:11:37,617 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_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/sv-benchmarks/c/loop-new/count_by_1.i[891,904] [2023-12-02 23:11:37,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:11:37,635 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:11:37,648 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_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/sv-benchmarks/c/loop-new/count_by_1.i[891,904] [2023-12-02 23:11:37,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:11:37,663 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:11:37,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37 WrapperNode [2023-12-02 23:11:37,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:11:37,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:11:37,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:11:37,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:11:37,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,678 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,693 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-12-02 23:11:37,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:11:37,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:11:37,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:11:37,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:11:37,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:11:37,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:11:37,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:11:37,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:11:37,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:11:37,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:11:37,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:11:37,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:11:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:11:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:11:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:11:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:11:37,851 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:11:37,854 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:11:37,932 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:11:37,961 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:11:37,961 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:11:37,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:37 BoogieIcfgContainer [2023-12-02 23:11:37,963 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:11:37,964 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:11:37,964 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:11:37,974 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:11:37,974 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:37" (1/1) ... [2023-12-02 23:11:37,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:11:38,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:38,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:11:38,039 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:11:38,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:11:38,041 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:38,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:11:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:11:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 23:11:38,224 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 23:11:38,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 23:11:38,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:38,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:11:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:38,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:11:38,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-12-02 23:11:38,331 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-12-02 23:11:38,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:11:38,331 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:38,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:11:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:38,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:11:38,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:38,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2023-12-02 23:11:38,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2023-12-02 23:11:38,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 23:11:38,537 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2023-12-02 23:11:38,545 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 23:11:38,568 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:11:38,571 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-12-02 23:11:38,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:11:38 ImpRootNode [2023-12-02 23:11:38,574 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:11:38,574 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:11:38,574 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:11:38,575 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:11:38,575 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:37" (3/4) ... [2023-12-02 23:11:38,577 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 23:11:38,583 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-02 23:11:38,583 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-02 23:11:38,584 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 23:11:38,584 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 23:11:38,649 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 23:11:38,649 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 23:11:38,650 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:11:38,650 INFO L158 Benchmark]: Toolchain (without parser) took 1210.77ms. Allocated memory is still 138.4MB. Free memory was 108.5MB in the beginning and 99.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-12-02 23:11:38,651 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory was 96.4MB in the beginning and 96.3MB in the end (delta: 139.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:11:38,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.41ms. Allocated memory is still 138.4MB. Free memory was 108.5MB in the beginning and 98.2MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 23:11:38,652 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.90ms. Allocated memory is still 138.4MB. Free memory was 98.2MB in the beginning and 96.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:11:38,652 INFO L158 Benchmark]: Boogie Preprocessor took 19.21ms. Allocated memory is still 138.4MB. Free memory was 96.7MB in the beginning and 95.7MB in the end (delta: 979.7kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:11:38,653 INFO L158 Benchmark]: RCFGBuilder took 248.55ms. Allocated memory is still 138.4MB. Free memory was 95.7MB in the beginning and 86.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 23:11:38,653 INFO L158 Benchmark]: CodeCheck took 610.10ms. Allocated memory is still 138.4MB. Free memory was 86.3MB in the beginning and 103.3MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:11:38,654 INFO L158 Benchmark]: Witness Printer took 75.38ms. Allocated memory is still 138.4MB. Free memory was 103.3MB in the beginning and 99.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:11:38,657 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 9 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 3/4 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: 19]: 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (i <= 1000000) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory was 96.4MB in the beginning and 96.3MB in the end (delta: 139.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.41ms. Allocated memory is still 138.4MB. Free memory was 108.5MB in the beginning and 98.2MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.90ms. Allocated memory is still 138.4MB. Free memory was 98.2MB in the beginning and 96.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.21ms. Allocated memory is still 138.4MB. Free memory was 96.7MB in the beginning and 95.7MB in the end (delta: 979.7kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 248.55ms. Allocated memory is still 138.4MB. Free memory was 95.7MB in the beginning and 86.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 610.10ms. Allocated memory is still 138.4MB. Free memory was 86.3MB in the beginning and 103.3MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 75.38ms. Allocated memory is still 138.4MB. Free memory was 103.3MB in the beginning and 99.2MB 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! [2023-12-02 23:11:38,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef461b5-a1af-4a43-ac3d-d580b6fa2de7/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