./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.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_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/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_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/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_e98148b0-503e-4153-a59e-e8e52800d4b1/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 05d860f4c0b8d355d8344160864c48286246164c4c6e8e3a08816fe000adfcec --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:54:29,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:54:29,097 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 20:54:29,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:54:29,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 20:54:29,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:54:29,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:54:29,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 20:54:29,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:54:29,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:54:29,127 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:54:29,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:54:29,128 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:54:29,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:54:29,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:54:29,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:54:29,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:54:29,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:54:29,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:54:29,131 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:54:29,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:54:29,135 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:54:29,135 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 20:54:29,136 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 20:54:29,136 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 20:54:29,137 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:54:29,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:54:29,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:54:29,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:54:29,138 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:54:29,139 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 20:54:29,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:54:29,139 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:54:29,139 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_e98148b0-503e-4153-a59e-e8e52800d4b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05d860f4c0b8d355d8344160864c48286246164c4c6e8e3a08816fe000adfcec [2023-12-02 20:54:29,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:54:29,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:54:29,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:54:29,375 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:54:29,376 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:54:29,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c [2023-12-02 20:54:32,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:54:32,246 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:54:32,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c [2023-12-02 20:54:32,253 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/data/4a3f56e85/0a66c278df3b4ce38afcf1c6082aca91/FLAGa0feef561 [2023-12-02 20:54:32,269 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/data/4a3f56e85/0a66c278df3b4ce38afcf1c6082aca91 [2023-12-02 20:54:32,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:54:32,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:54:32,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:54:32,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:54:32,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:54:32,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfbb4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32, skipping insertion in model container [2023-12-02 20:54:32,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,303 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:54:32,454 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_e98148b0-503e-4153-a59e-e8e52800d4b1/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c[454,467] [2023-12-02 20:54:32,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:54:32,477 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:54:32,489 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_e98148b0-503e-4153-a59e-e8e52800d4b1/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c[454,467] [2023-12-02 20:54:32,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:54:32,508 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:54:32,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32 WrapperNode [2023-12-02 20:54:32,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:54:32,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:54:32,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:54:32,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:54:32,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,523 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,541 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2023-12-02 20:54:32,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:54:32,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:54:32,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:54:32,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:54:32,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:54:32,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:54:32,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:54:32,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:54:32,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:54:32,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 20:54:32,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 20:54:32,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 20:54:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:54:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 20:54:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:54:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:54:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 20:54:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 20:54:32,693 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:54:32,696 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:54:32,799 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:54:32,842 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:54:32,842 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 20:54:32,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:54:32 BoogieIcfgContainer [2023-12-02 20:54:32,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:54:32,845 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 20:54:32,846 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 20:54:32,856 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 20:54:32,856 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:54:32" (1/1) ... [2023-12-02 20:54:32,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:54:32,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:54:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2023-12-02 20:54:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-12-02 20:54:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 20:54:32,918 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:54:32,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:54:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:54:33,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 20:54:33,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:54:33,137 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 20:54:33,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:54:33,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2023-12-02 20:54:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-12-02 20:54:33,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 20:54:33,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:54:33,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:54:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:54:33,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 20:54:33,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:54:33,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:54:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:54:33,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-12-02 20:54:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-12-02 20:54:33,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 20:54:33,525 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:54:33,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:54:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:54:33,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 20:54:33,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:54:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:54:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:54:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-12-02 20:54:33,793 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-12-02 20:54:33,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 20:54:33,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:54:33,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:54:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:54:33,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 20:54:33,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:54:33,934 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 20:54:34,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:54:34,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 14 states and 16 transitions. [2023-12-02 20:54:34,423 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-02 20:54:34,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 20:54:34,423 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-12-02 20:54:34,432 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 20:54:34,489 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 20:54:34,493 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 20:54:34,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 08:54:34 ImpRootNode [2023-12-02 20:54:34,494 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 20:54:34,494 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 20:54:34,494 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 20:54:34,494 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 20:54:34,495 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:54:32" (3/4) ... [2023-12-02 20:54:34,497 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 20:54:34,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 20:54:34,504 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 20:54:34,504 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-02 20:54:34,504 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 20:54:34,505 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 20:54:34,586 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 20:54:34,587 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 20:54:34,587 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 20:54:34,588 INFO L158 Benchmark]: Toolchain (without parser) took 2314.79ms. Allocated memory is still 203.4MB. Free memory was 162.8MB in the beginning and 98.3MB in the end (delta: 64.5MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2023-12-02 20:54:34,588 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:54:34,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.39ms. Allocated memory is still 203.4MB. Free memory was 162.8MB in the beginning and 152.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 20:54:34,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.85ms. Allocated memory is still 203.4MB. Free memory was 152.2MB in the beginning and 150.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:54:34,590 INFO L158 Benchmark]: Boogie Preprocessor took 22.01ms. Allocated memory is still 203.4MB. Free memory was 150.7MB in the beginning and 149.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:54:34,590 INFO L158 Benchmark]: RCFGBuilder took 279.78ms. Allocated memory is still 203.4MB. Free memory was 149.6MB in the beginning and 138.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 20:54:34,591 INFO L158 Benchmark]: CodeCheck took 1648.30ms. Allocated memory is still 203.4MB. Free memory was 138.1MB in the beginning and 102.3MB in the end (delta: 35.8MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2023-12-02 20:54:34,591 INFO L158 Benchmark]: Witness Printer took 92.98ms. Allocated memory is still 203.4MB. Free memory was 102.3MB in the beginning and 98.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 20:54:34,594 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 40 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 449 GetRequests, 409 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 179 SizeOfPredicates, 4 NumberOfNonLiveVariables, 221 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 18/21 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.39ms. Allocated memory is still 203.4MB. Free memory was 162.8MB in the beginning and 152.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.85ms. Allocated memory is still 203.4MB. Free memory was 152.2MB in the beginning and 150.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.01ms. Allocated memory is still 203.4MB. Free memory was 150.7MB in the beginning and 149.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.78ms. Allocated memory is still 203.4MB. Free memory was 149.6MB in the beginning and 138.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 1648.30ms. Allocated memory is still 203.4MB. Free memory was 138.1MB in the beginning and 102.3MB in the end (delta: 35.8MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * Witness Printer took 92.98ms. Allocated memory is still 203.4MB. Free memory was 102.3MB in the beginning and 98.3MB 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! [2023-12-02 20:54:34,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e98148b0-503e-4153-a59e-e8e52800d4b1/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