./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0414607cdfaf86248673acc731020b311087823754eb03e229e19e48245fa120 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:05:55,336 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:05:55,423 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:05:55,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:05:55,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:05:55,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:05:55,461 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:05:55,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:05:55,462 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:05:55,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:05:55,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:05:55,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:05:55,465 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:05:55,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:05:55,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:05:55,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:05:55,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:05:55,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:05:55,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:05:55,470 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:05:55,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:05:55,471 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:05:55,472 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:05:55,473 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:05:55,473 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:05:55,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:05:55,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:05:55,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:05:55,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:05:55,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:05:55,477 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:05:55,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:05:55,478 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:05:55,478 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_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0414607cdfaf86248673acc731020b311087823754eb03e229e19e48245fa120 [2023-11-19 04:05:55,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:05:55,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:05:55,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:05:55,765 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:05:55,765 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:05:55,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i [2023-11-19 04:05:58,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:05:59,220 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:05:59,220 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i [2023-11-19 04:05:59,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/data/6a4aeaf02/ff94fa01e2b348daaf28d5ff84274193/FLAGfdda29de1 [2023-11-19 04:05:59,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/data/6a4aeaf02/ff94fa01e2b348daaf28d5ff84274193 [2023-11-19 04:05:59,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:05:59,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:05:59,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:05:59,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:05:59,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:05:59,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb3d551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59, skipping insertion in model container [2023-11-19 04:05:59,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,283 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:05:59,429 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_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i[873,886] [2023-11-19 04:05:59,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:05:59,451 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:05:59,461 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_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i[873,886] [2023-11-19 04:05:59,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:05:59,479 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:05:59,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59 WrapperNode [2023-11-19 04:05:59,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:05:59,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:05:59,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:05:59,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:05:59,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,513 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-11-19 04:05:59,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:05:59,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:05:59,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:05:59,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:05:59,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,544 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,550 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:05:59,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:05:59,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:05:59,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:05:59,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:05:59,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:05:59,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:05:59,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:05:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:05:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:05:59,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:05:59,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:05:59,694 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:05:59,697 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:05:59,803 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:05:59,828 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:05:59,828 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:05:59,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:59 BoogieIcfgContainer [2023-11-19 04:05:59,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:05:59,835 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:05:59,835 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:05:59,846 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:05:59,846 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:59" (1/1) ... [2023-11-19 04:05:59,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:05:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-19 04:05:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-19 04:05:59,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:05:59,910 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:59,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:06:00,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:00,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2023-11-19 04:06:00,191 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-11-19 04:06:00,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:06:00,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:00,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:00,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:06:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:00,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 13 states and 20 transitions. [2023-11-19 04:06:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 20 transitions. [2023-11-19 04:06:00,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:06:00,883 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:00,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:01,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:06:01,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-11-19 04:06:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-11-19 04:06:01,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:06:01,410 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:01,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:06:01,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:01,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-19 04:06:01,739 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-19 04:06:01,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:06:01,739 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-19 04:06:01,752 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 04:06:01,778 INFO L560 CodeCheckObserver]: Invariant with dag size 14 [2023-11-19 04:06:01,797 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 04:06:01,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:06:01 ImpRootNode [2023-11-19 04:06:01,799 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:06:01,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:06:01,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:06:01,801 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:06:01,802 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:59" (3/4) ... [2023-11-19 04:06:01,807 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:06:01,819 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 04:06:01,819 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 04:06:01,820 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:06:01,820 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:06:01,945 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:06:01,945 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 04:06:01,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:06:01,946 INFO L158 Benchmark]: Toolchain (without parser) took 2698.96ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 76.5MB in the beginning and 99.4MB in the end (delta: -22.9MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-11-19 04:06:01,947 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 134.2MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:06:01,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.83ms. Allocated memory is still 134.2MB. Free memory was 76.2MB in the beginning and 65.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:06:01,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.01ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 65.9MB in the beginning and 137.5MB in the end (delta: -71.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-19 04:06:01,951 INFO L158 Benchmark]: Boogie Preprocessor took 23.15ms. Allocated memory is still 165.7MB. Free memory was 137.4MB in the beginning and 136.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:06:01,951 INFO L158 Benchmark]: RCFGBuilder took 281.98ms. Allocated memory is still 165.7MB. Free memory was 136.3MB in the beginning and 127.3MB in the end (delta: 9.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-19 04:06:01,952 INFO L158 Benchmark]: CodeCheck took 1963.94ms. Allocated memory is still 165.7MB. Free memory was 127.3MB in the beginning and 103.5MB in the end (delta: 23.9MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-11-19 04:06:01,952 INFO L158 Benchmark]: Witness Printer took 144.73ms. Allocated memory is still 165.7MB. Free memory was 103.5MB in the beginning and 99.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:06:01,954 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 20 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 208 GetRequests, 180 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 2/7 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 16]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((((n <= k) && (1 <= n)) && ((j + k) == n)) || (((0 <= k) && (0 < j)) && ((j + k) == n))) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 134.2MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.83ms. Allocated memory is still 134.2MB. Free memory was 76.2MB in the beginning and 65.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.01ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 65.9MB in the beginning and 137.5MB in the end (delta: -71.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.15ms. Allocated memory is still 165.7MB. Free memory was 137.4MB in the beginning and 136.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 281.98ms. Allocated memory is still 165.7MB. Free memory was 136.3MB in the beginning and 127.3MB in the end (delta: 9.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * CodeCheck took 1963.94ms. Allocated memory is still 165.7MB. Free memory was 127.3MB in the beginning and 103.5MB in the end (delta: 23.9MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Witness Printer took 144.73ms. Allocated memory is still 165.7MB. Free memory was 103.5MB in the beginning and 99.4MB 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! [2023-11-19 04:06:01,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3505c87d-b9f1-4f3d-9d82-ac09e0f53666/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE