./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark19_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_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/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_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/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_21958943-1d38-4b6f-b5e4-5920c87232d4/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 2dd3364bf5e5337e36d5137f60eb9fb66edcf0c750f78ddc701b6a530fbd02a5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:05:11,219 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:05:11,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:05:11,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:05:11,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:05:11,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:05:11,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:05:11,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:05:11,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:05:11,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:05:11,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:05:11,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:05:11,421 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:05:11,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:05:11,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:05:11,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:05:11,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:05:11,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:05:11,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:05:11,426 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:05:11,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:05:11,461 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:05:11,461 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:05:11,462 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:05:11,462 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:05:11,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:05:11,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:05:11,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:05:11,464 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:05:11,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:05:11,465 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:05:11,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:05:11,466 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:05:11,467 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_21958943-1d38-4b6f-b5e4-5920c87232d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dd3364bf5e5337e36d5137f60eb9fb66edcf0c750f78ddc701b6a530fbd02a5 [2023-11-19 04:05:11,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:05:11,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:05:11,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:05:11,779 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:05:11,780 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:05:11,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i [2023-11-19 04:05:14,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:05:15,219 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:05:15,220 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i [2023-11-19 04:05:15,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/data/ea3b89919/c711cb1f7954412386499c325cf75880/FLAG419fcdede [2023-11-19 04:05:15,245 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/data/ea3b89919/c711cb1f7954412386499c325cf75880 [2023-11-19 04:05:15,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:05:15,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:05:15,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:05:15,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:05:15,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:05:15,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d73fc74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15, skipping insertion in model container [2023-11-19 04:05:15,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,287 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:05:15,457 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_21958943-1d38-4b6f-b5e4-5920c87232d4/sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i[873,886] [2023-11-19 04:05:15,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:05:15,484 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:05:15,497 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_21958943-1d38-4b6f-b5e4-5920c87232d4/sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i[873,886] [2023-11-19 04:05:15,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:05:15,517 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:05:15,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15 WrapperNode [2023-11-19 04:05:15,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:05:15,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:05:15,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:05:15,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:05:15,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,559 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-11-19 04:05:15,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:05:15,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:05:15,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:05:15,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:05:15,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:05:15,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:05:15,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:05:15,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:05:15,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:05:15,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:05:15,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:05:15,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:05:15,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:05:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:05:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:05:15,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:05:15,774 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:05:15,776 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:05:15,910 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:05:15,940 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:05:15,941 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:05:15,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:15 BoogieIcfgContainer [2023-11-19 04:05:15,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:05:15,948 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:05:15,948 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:05:15,962 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:05:15,962 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:15" (1/1) ... [2023-11-19 04:05:15,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:05:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-19 04:05:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-19 04:05:16,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:05:16,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:16,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:16,348 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 04:05:16,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2023-11-19 04:05:16,446 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-11-19 04:05:16,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:05:16,447 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:16,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:16,826 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 04:05:17,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:17,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 13 states and 20 transitions. [2023-11-19 04:05:17,201 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 20 transitions. [2023-11-19 04:05:17,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:05:17,203 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:17,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:17,473 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 04:05:17,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:17,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-11-19 04:05:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-11-19 04:05:17,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:05:17,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:17,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:17,841 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 04:05:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:18,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-19 04:05:18,055 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-19 04:05:18,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:05:18,056 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-19 04:05:18,071 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 04:05:18,098 INFO L560 CodeCheckObserver]: Invariant with dag size 13 [2023-11-19 04:05:18,109 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 04:05:18,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:05:18 ImpRootNode [2023-11-19 04:05:18,110 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:05:18,111 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:05:18,111 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:05:18,112 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:05:18,112 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:15" (3/4) ... [2023-11-19 04:05:18,115 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:05:18,124 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 04:05:18,124 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 04:05:18,125 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:05:18,125 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:05:18,235 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:05:18,236 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 04:05:18,236 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:05:18,237 INFO L158 Benchmark]: Toolchain (without parser) took 2986.56ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 92.9MB in the beginning and 111.1MB in the end (delta: -18.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-19 04:05:18,238 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 136.3MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:05:18,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.51ms. Allocated memory is still 136.3MB. Free memory was 92.5MB in the beginning and 82.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:05:18,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.13ms. Allocated memory is still 136.3MB. Free memory was 82.5MB in the beginning and 80.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:05:18,239 INFO L158 Benchmark]: Boogie Preprocessor took 26.09ms. Allocated memory is still 136.3MB. Free memory was 80.8MB in the beginning and 79.8MB in the end (delta: 990.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:05:18,240 INFO L158 Benchmark]: RCFGBuilder took 358.88ms. Allocated memory is still 136.3MB. Free memory was 79.8MB in the beginning and 69.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:05:18,241 INFO L158 Benchmark]: CodeCheck took 2162.87ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 69.4MB in the beginning and 116.4MB in the end (delta: -47.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:05:18,241 INFO L158 Benchmark]: Witness Printer took 124.98ms. Allocated memory is still 201.3MB. Free memory was 116.4MB in the beginning and 111.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:05:18,244 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: 2.1s, 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, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.3s 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, 0.9s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 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: ((((j == k) && (n <= k)) && (1 <= n)) || (((0 <= k) && (j == k)) && (j < 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 0.37ms. Allocated memory is still 136.3MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.51ms. Allocated memory is still 136.3MB. Free memory was 92.5MB in the beginning and 82.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.13ms. Allocated memory is still 136.3MB. Free memory was 82.5MB in the beginning and 80.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.09ms. Allocated memory is still 136.3MB. Free memory was 80.8MB in the beginning and 79.8MB in the end (delta: 990.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 358.88ms. Allocated memory is still 136.3MB. Free memory was 79.8MB in the beginning and 69.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2162.87ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 69.4MB in the beginning and 116.4MB in the end (delta: -47.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 124.98ms. Allocated memory is still 201.3MB. Free memory was 116.4MB in the beginning and 111.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 04:05:18,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21958943-1d38-4b6f-b5e4-5920c87232d4/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