./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gj2007b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/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_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/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_793bf13b-c524-4a60-b035-a28db3360658/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 a5dbdf40c5c8abdf745ea2973f48a7f1bd1d56b53cd410b7a2d364d83fc651a9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:36:09,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:36:09,284 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:36:09,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:36:09,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:36:09,337 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:36:09,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:36:09,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:36:09,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:36:09,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:36:09,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:36:09,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:36:09,351 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:36:09,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:36:09,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:36:09,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:36:09,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:36:09,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:36:09,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:36:09,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:36:09,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:36:09,358 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:36:09,358 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:36:09,360 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:36:09,361 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:36:09,362 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:36:09,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:36:09,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:36:09,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:36:09,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:36:09,365 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:36:09,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:36:09,366 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:36:09,366 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_793bf13b-c524-4a60-b035-a28db3360658/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5dbdf40c5c8abdf745ea2973f48a7f1bd1d56b53cd410b7a2d364d83fc651a9 [2023-11-19 03:36:09,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:36:09,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:36:09,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:36:09,814 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:36:09,815 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:36:09,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-lit/gj2007b.i [2023-11-19 03:36:13,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:36:13,531 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:36:13,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/sv-benchmarks/c/loop-lit/gj2007b.i [2023-11-19 03:36:13,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/data/138fa120a/39b8d262dec3480d8876d4daf46c40bd/FLAGc434e1ac8 [2023-11-19 03:36:13,556 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/data/138fa120a/39b8d262dec3480d8876d4daf46c40bd [2023-11-19 03:36:13,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:36:13,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:36:13,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:36:13,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:36:13,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:36:13,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fa2959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13, skipping insertion in model container [2023-11-19 03:36:13,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,602 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:36:13,785 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_793bf13b-c524-4a60-b035-a28db3360658/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2023-11-19 03:36:13,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:36:13,822 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:36:13,833 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_793bf13b-c524-4a60-b035-a28db3360658/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2023-11-19 03:36:13,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:36:13,850 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:36:13,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13 WrapperNode [2023-11-19 03:36:13,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:36:13,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:36:13,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:36:13,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:36:13,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,890 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-11-19 03:36:13,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:36:13,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:36:13,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:36:13,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:36:13,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:36:13,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:36:13,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:36:13,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:36:13,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:13" (1/1) ... [2023-11-19 03:36:13,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:36:13,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:36:13,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:36:13,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:36:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:36:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:36:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:36:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:36:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:36:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:36:14,065 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:36:14,067 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:36:14,191 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:36:14,230 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:36:14,231 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:36:14,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:36:14 BoogieIcfgContainer [2023-11-19 03:36:14,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:36:14,237 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:36:14,244 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:36:14,261 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:36:14,261 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:36:14" (1/1) ... [2023-11-19 03:36:14,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:36:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-19 03:36:14,336 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-19 03:36:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:36:14,342 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:14,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:14,846 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 03:36:14,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 20 transitions. [2023-11-19 03:36:15,000 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-11-19 03:36:15,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:36:15,001 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:15,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:15,251 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 03:36:15,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:15,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 25 transitions. [2023-11-19 03:36:15,376 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2023-11-19 03:36:15,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:36:15,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:15,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:15,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:36:15,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:15,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 18 transitions. [2023-11-19 03:36:15,883 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2023-11-19 03:36:15,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:36:15,884 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:15,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:36:16,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 26 transitions. [2023-11-19 03:36:16,303 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2023-11-19 03:36:16,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:36:16,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:16,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:16,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:36:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:16,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 30 transitions. [2023-11-19 03:36:16,813 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2023-11-19 03:36:16,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:36:16,816 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:16,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:17,064 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:36:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 16 states and 25 transitions. [2023-11-19 03:36:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 25 transitions. [2023-11-19 03:36:17,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:36:17,390 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-19 03:36:17,399 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:36:17,466 INFO L560 CodeCheckObserver]: Invariant with dag size 13 [2023-11-19 03:36:17,477 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:36:17,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:36:17 ImpRootNode [2023-11-19 03:36:17,479 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:36:17,479 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:36:17,480 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:36:17,480 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:36:17,480 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:36:14" (3/4) ... [2023-11-19 03:36:17,483 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:36:17,487 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 03:36:17,495 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 03:36:17,496 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 03:36:17,496 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:36:17,497 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:36:17,619 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:36:17,619 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:36:17,619 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:36:17,625 INFO L158 Benchmark]: Toolchain (without parser) took 4058.82ms. Allocated memory is still 182.5MB. Free memory was 139.2MB in the beginning and 90.3MB in the end (delta: 49.0MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2023-11-19 03:36:17,626 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 182.5MB. Free memory is still 158.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:36:17,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.34ms. Allocated memory is still 182.5MB. Free memory was 139.0MB in the beginning and 128.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:36:17,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.67ms. Allocated memory is still 182.5MB. Free memory was 128.7MB in the beginning and 127.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:36:17,627 INFO L158 Benchmark]: Boogie Preprocessor took 26.26ms. Allocated memory is still 182.5MB. Free memory was 127.3MB in the beginning and 126.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:36:17,628 INFO L158 Benchmark]: RCFGBuilder took 317.48ms. Allocated memory is still 182.5MB. Free memory was 126.2MB in the beginning and 115.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:36:17,634 INFO L158 Benchmark]: CodeCheck took 3241.68ms. Allocated memory is still 182.5MB. Free memory was 115.5MB in the beginning and 95.4MB in the end (delta: 20.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-11-19 03:36:17,634 INFO L158 Benchmark]: Witness Printer took 140.11ms. Allocated memory is still 182.5MB. Free memory was 94.5MB in the beginning and 90.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:36:17,638 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 117 mSolverCounterUnsat, 54 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 544 GetRequests, 485 SyntacticMatches, 11 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 6/14 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((0 <= x) && (m == 0)) || (((0 <= m) && (1 <= x)) && (m < n))) - InvariantResult [Line: 35]: 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 182.5MB. Free memory is still 158.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.34ms. Allocated memory is still 182.5MB. Free memory was 139.0MB in the beginning and 128.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.67ms. Allocated memory is still 182.5MB. Free memory was 128.7MB in the beginning and 127.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.26ms. Allocated memory is still 182.5MB. Free memory was 127.3MB in the beginning and 126.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 317.48ms. Allocated memory is still 182.5MB. Free memory was 126.2MB in the beginning and 115.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 3241.68ms. Allocated memory is still 182.5MB. Free memory was 115.5MB in the beginning and 95.4MB in the end (delta: 20.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Witness Printer took 140.11ms. Allocated memory is still 182.5MB. Free memory was 94.5MB in the beginning and 90.3MB 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! [2023-11-19 03:36:17,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bf13b-c524-4a60-b035-a28db3360658/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