./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i --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_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi --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 6b9a965f73c3cec90a7bf30e1abcce707e2acf95b41bbd45e0beb5b55c7fe39d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:02:10,721 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:02:10,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:02:10,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:02:10,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:02:10,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:02:10,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:02:10,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:02:10,841 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:02:10,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:02:10,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:02:10,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:02:10,844 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:02:10,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:02:10,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:02:10,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:02:10,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:02:10,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:02:10,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:02:10,848 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:02:10,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:02:10,849 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:02:10,850 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:02:10,851 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:02:10,851 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:02:10,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:02:10,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:02:10,853 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:02:10,854 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:02:10,854 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:02:10,855 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:02:10,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:02:10,856 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:02:10,857 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_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b9a965f73c3cec90a7bf30e1abcce707e2acf95b41bbd45e0beb5b55c7fe39d [2023-11-24 23:02:11,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:02:11,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:02:11,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:02:11,242 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:02:11,244 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:02:11,246 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i [2023-11-24 23:02:14,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:02:14,894 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:02:14,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i [2023-11-24 23:02:14,904 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/data/e2b6997d6/64874b9b51274e5d99642e447e562c44/FLAGb988b3b96 [2023-11-24 23:02:14,926 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/data/e2b6997d6/64874b9b51274e5d99642e447e562c44 [2023-11-24 23:02:14,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:02:14,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:02:14,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:02:14,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:02:14,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:02:14,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:02:14" (1/1) ... [2023-11-24 23:02:14,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@780a6697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:14, skipping insertion in model container [2023-11-24 23:02:14,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:02:14" (1/1) ... [2023-11-24 23:02:14,976 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:02:15,182 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_6b811ab0-1135-414e-9fa8-163b98a19272/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i[873,886] [2023-11-24 23:02:15,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:02:15,211 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:02:15,228 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_6b811ab0-1135-414e-9fa8-163b98a19272/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i[873,886] [2023-11-24 23:02:15,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:02:15,251 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:02:15,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15 WrapperNode [2023-11-24 23:02:15,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:02:15,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:02:15,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:02:15,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:02:15,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,291 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-11-24 23:02:15,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:02:15,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:02:15,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:02:15,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:02:15,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,328 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:02:15,331 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:02:15,331 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:02:15,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:02:15,332 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:02:15,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:02:15,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:02:15,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:02:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:02:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:02:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:02:15,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:02:15,488 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:02:15,490 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:02:15,610 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:02:15,639 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:02:15,639 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:02:15,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:02:15 BoogieIcfgContainer [2023-11-24 23:02:15,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:02:15,642 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:02:15,642 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:02:15,664 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:02:15,680 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:02:15" (1/1) ... [2023-11-24 23:02:15,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:02:15,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:15,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-24 23:02:15,769 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-24 23:02:15,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:02:15,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:15,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:02:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:15,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:02:16,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-24 23:02:16,038 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-24 23:02:16,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:02:16,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:16,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:02:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:02:16,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-24 23:02:16,429 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-24 23:02:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:02:16,430 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:16,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:02:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:02:16,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-24 23:02:16,797 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-24 23:02:16,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:02:16,798 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2023-11-24 23:02:16,809 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 23:02:16,831 INFO L560 CodeCheckObserver]: Invariant with dag size 14 [2023-11-24 23:02:16,843 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:02:16,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:02:16 ImpRootNode [2023-11-24 23:02:16,844 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:02:16,845 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:02:16,845 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:02:16,845 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:02:16,846 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:02:15" (3/4) ... [2023-11-24 23:02:16,848 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:02:16,860 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-24 23:02:16,860 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 23:02:16,861 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:02:16,861 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:02:16,969 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:02:16,973 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:02:16,973 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:02:16,974 INFO L158 Benchmark]: Toolchain (without parser) took 2038.60ms. Allocated memory is still 178.3MB. Free memory was 148.5MB in the beginning and 101.8MB in the end (delta: 46.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-24 23:02:16,975 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 130.0MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:02:16,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.92ms. Allocated memory is still 178.3MB. Free memory was 148.3MB in the beginning and 143.1MB in the end (delta: 5.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2023-11-24 23:02:16,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.36ms. Allocated memory is still 178.3MB. Free memory was 143.1MB in the beginning and 141.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:02:16,984 INFO L158 Benchmark]: Boogie Preprocessor took 37.75ms. Allocated memory is still 178.3MB. Free memory was 141.0MB in the beginning and 140.7MB in the end (delta: 364.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:02:16,984 INFO L158 Benchmark]: RCFGBuilder took 310.59ms. Allocated memory is still 178.3MB. Free memory was 139.8MB in the beginning and 129.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:02:16,985 INFO L158 Benchmark]: CodeCheck took 1201.88ms. Allocated memory is still 178.3MB. Free memory was 129.3MB in the beginning and 106.0MB in the end (delta: 23.2MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-24 23:02:16,986 INFO L158 Benchmark]: Witness Printer took 128.47ms. Allocated memory is still 178.3MB. Free memory was 106.0MB in the beginning and 101.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:02:16,988 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 15 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/4 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 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: (((0 <= k) && (n < (j + 1))) || (((j + 1) <= n) && (n <= (j + k)))) - 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 0.60ms. Allocated memory is still 130.0MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.92ms. Allocated memory is still 178.3MB. Free memory was 148.3MB in the beginning and 143.1MB in the end (delta: 5.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.36ms. Allocated memory is still 178.3MB. Free memory was 143.1MB in the beginning and 141.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.75ms. Allocated memory is still 178.3MB. Free memory was 141.0MB in the beginning and 140.7MB in the end (delta: 364.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 310.59ms. Allocated memory is still 178.3MB. Free memory was 139.8MB in the beginning and 129.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1201.88ms. Allocated memory is still 178.3MB. Free memory was 129.3MB in the beginning and 106.0MB in the end (delta: 23.2MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Witness Printer took 128.47ms. Allocated memory is still 178.3MB. Free memory was 106.0MB in the beginning and 101.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 23:02:17,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b811ab0-1135-414e-9fa8-163b98a19272/bin/ukojak-verify-afCqCEvfdi/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