./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d4e462b7d35352e08babe31c6cf26652f15369f8987a0f8178b259c222457da ................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:28:08,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:28:08,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:28:08,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:28:08,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:28:08,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:28:08,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:28:08,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:28:08,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:28:08,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:28:08,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:28:08,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:28:08,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:28:08,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:28:08,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:28:08,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:28:08,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:28:08,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:28:08,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:28:08,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:28:08,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:28:08,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:28:08,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:28:08,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:28:08,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:28:08,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:28:08,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:28:08,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:28:08,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:28:08,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:28:08,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:28:08,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:28:08,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:28:08,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:28:08,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:28:08,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:28:08,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:28:08,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:28:08,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:28:08,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:28:08,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:28:08,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:28:08,517 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:28:08,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:28:08,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:28:08,518 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:28:08,518 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:28:08,519 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:28:08,519 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:28:08,519 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:28:08,519 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:28:08,519 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:28:08,519 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:28:08,520 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:28:08,520 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:28:08,520 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:28:08,520 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:28:08,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:28:08,521 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:28:08,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:28:08,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:28:08,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:28:08,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:28:08,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:28:08,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:28:08,522 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:28:08,523 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:28:08,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:28:08,523 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:28:08,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:28:08,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:28:08,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:28:08,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:28:08,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:28:08,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:28:08,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:28:08,525 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:28:08,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:28:08,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:28:08,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:28:08,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:28:08,525 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d4e462b7d35352e08babe31c6cf26652f15369f8987a0f8178b259c222457da [2021-10-29 05:28:08,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:28:08,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:28:08,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:28:08,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:28:08,813 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:28:08,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2021-10-29 05:28:08,869 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/data/446cfef55/798fb8ecf59a4410af949e9a3a3cc06b/FLAG961f26fdf [2021-10-29 05:28:09,351 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:28:09,352 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2021-10-29 05:28:09,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/data/446cfef55/798fb8ecf59a4410af949e9a3a3cc06b/FLAG961f26fdf [2021-10-29 05:28:09,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/data/446cfef55/798fb8ecf59a4410af949e9a3a3cc06b [2021-10-29 05:28:09,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:28:09,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:28:09,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:28:09,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:28:09,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:28:09,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:28:09" (1/1) ... [2021-10-29 05:28:09,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c567f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:09, skipping insertion in model container [2021-10-29 05:28:09,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:28:09" (1/1) ... [2021-10-29 05:28:09,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:28:09,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:28:09,981 WARN L228 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_3a844816-883b-4528-ae90-cd32f053d470/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i[843,856] [2021-10-29 05:28:10,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:28:10,235 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:28:10,257 WARN L228 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_3a844816-883b-4528-ae90-cd32f053d470/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i[843,856] [2021-10-29 05:28:10,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:28:10,342 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:28:10,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10 WrapperNode [2021-10-29 05:28:10,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:28:10,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:28:10,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:28:10,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:28:10,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (1/1) ... [2021-10-29 05:28:10,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (1/1) ... [2021-10-29 05:28:10,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:28:10,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:28:10,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:28:10,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:28:10,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (1/1) ... [2021-10-29 05:28:10,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (1/1) ... [2021-10-29 05:28:10,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (1/1) ... [2021-10-29 05:28:10,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (1/1) ... [2021-10-29 05:28:10,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (1/1) ... [2021-10-29 05:28:10,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (1/1) ... [2021-10-29 05:28:10,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (1/1) ... [2021-10-29 05:28:10,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:28:10,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:28:10,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:28:10,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:28:10,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (1/1) ... [2021-10-29 05:28:10,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:28:10,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:28:10,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:28:10,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:28:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2021-10-29 05:28:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2021-10-29 05:28:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:28:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-29 05:28:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:28:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:28:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:28:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:28:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:28:10,558 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 05:28:10,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:28:10,927 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 05:28:10,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:28:10 BoogieIcfgContainer [2021-10-29 05:28:10,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:28:10,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:28:10,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:28:10,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:28:10,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:28:09" (1/3) ... [2021-10-29 05:28:10,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d7dda2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:28:10, skipping insertion in model container [2021-10-29 05:28:10,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:28:10" (2/3) ... [2021-10-29 05:28:10,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d7dda2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:28:10, skipping insertion in model container [2021-10-29 05:28:10,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:28:10" (3/3) ... [2021-10-29 05:28:10,938 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2021-10-29 05:28:10,943 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 05:28:10,943 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:28:10,944 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:28:10,944 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 05:28:10,969 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,969 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,969 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,970 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,970 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,970 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,970 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,971 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,971 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,971 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,972 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,972 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,972 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,973 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,973 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,973 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,974 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,974 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,974 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,974 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,975 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,975 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,975 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,975 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,976 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,976 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,976 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,977 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,977 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,977 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,978 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,978 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,978 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,979 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,979 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,979 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,980 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,980 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,983 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,983 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,984 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,984 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,984 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,984 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,985 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,985 WARN L313 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,985 WARN L313 ript$VariableManager]: TermVariabe workerThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:28:10,989 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-29 05:28:11,047 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:28:11,056 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:28:11,057 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 05:28:11,083 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 05:28:11,092 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 64 transitions, 133 flow [2021-10-29 05:28:11,095 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 64 transitions, 133 flow [2021-10-29 05:28:11,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 64 transitions, 133 flow [2021-10-29 05:28:11,134 INFO L129 PetriNetUnfolder]: 4/63 cut-off events. [2021-10-29 05:28:11,134 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-29 05:28:11,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 4/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2021-10-29 05:28:11,138 INFO L116 LiptonReduction]: Number of co-enabled transitions 364 [2021-10-29 05:28:15,457 INFO L131 LiptonReduction]: Checked pairs total: 250 [2021-10-29 05:28:15,457 INFO L133 LiptonReduction]: Total number of compositions: 67 [2021-10-29 05:28:15,465 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2021-10-29 05:28:15,473 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:15,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:15,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 05:28:15,479 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:28:15,480 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 05:28:15,480 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:28:15,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:28:15,485 INFO L85 PathProgramCache]: Analyzing trace with hash 8184795, now seen corresponding path program 1 times [2021-10-29 05:28:15,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:28:15,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139862980] [2021-10-29 05:28:15,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:28:15,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:28:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:28:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:28:15,662 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:28:15,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139862980] [2021-10-29 05:28:15,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139862980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:28:15,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:28:15,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 05:28:15,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366237734] [2021-10-29 05:28:15,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:28:15,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:28:15,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:28:15,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:28:15,690 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:15,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:28:15,699 INFO L93 Difference]: Finished difference Result 6 states and 8 transitions. [2021-10-29 05:28:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:28:15,702 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-29 05:28:15,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:28:15,708 INFO L225 Difference]: With dead ends: 6 [2021-10-29 05:28:15,708 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:28:15,715 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:28:15,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:28:15,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:28:15,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:15,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:28:15,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-29 05:28:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:28:15,737 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:28:15,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:15,738 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:28:15,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:28:15,741 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 05:28:15,741 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:28:15,742 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:28:15,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:28:15,744 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 05:28:15,749 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 05:28:15,749 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:28:15,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:28:15 BasicIcfg [2021-10-29 05:28:15,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:28:15,752 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:28:15,752 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:28:15,752 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:28:15,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:28:10" (3/4) ... [2021-10-29 05:28:15,756 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:28:15,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2021-10-29 05:28:15,765 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-29 05:28:15,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:28:15,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 05:28:15,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:28:15,814 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:28:15,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:28:15,816 INFO L168 Benchmark]: Toolchain (without parser) took 6118.21 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 69.3 MB in the beginning and 88.1 MB in the end (delta: -18.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:15,816 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 111.1 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:28:15,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.04 ms. Allocated memory is still 111.1 MB. Free memory was 69.1 MB in the beginning and 77.9 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:15,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.20 ms. Allocated memory is still 111.1 MB. Free memory was 77.9 MB in the beginning and 75.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:15,817 INFO L168 Benchmark]: Boogie Preprocessor took 51.82 ms. Allocated memory is still 111.1 MB. Free memory was 75.8 MB in the beginning and 74.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:15,818 INFO L168 Benchmark]: RCFGBuilder took 458.60 ms. Allocated memory is still 111.1 MB. Free memory was 74.6 MB in the beginning and 63.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:15,818 INFO L168 Benchmark]: TraceAbstraction took 4820.00 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 62.4 MB in the beginning and 90.2 MB in the end (delta: -27.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:28:15,819 INFO L168 Benchmark]: Witness Printer took 62.50 ms. Allocated memory is still 134.2 MB. Free memory was 90.2 MB in the beginning and 88.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:15,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 111.1 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 645.04 ms. Allocated memory is still 111.1 MB. Free memory was 69.1 MB in the beginning and 77.9 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.20 ms. Allocated memory is still 111.1 MB. Free memory was 77.9 MB in the beginning and 75.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.82 ms. Allocated memory is still 111.1 MB. Free memory was 75.8 MB in the beginning and 74.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 458.60 ms. Allocated memory is still 111.1 MB. Free memory was 74.6 MB in the beginning and 63.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4820.00 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 62.4 MB in the beginning and 90.2 MB in the end (delta: -27.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 62.50 ms. Allocated memory is still 134.2 MB. Free memory was 90.2 MB in the beginning and 88.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 64 PlacesBefore, 11 PlacesAfterwards, 64 TransitionsBefore, 8 TransitionsAfterwards, 364 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 250, positive: 250, positive conditional: 0, positive unconditional: 250, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 237, positive: 237, positive conditional: 0, positive unconditional: 237, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 237, positive: 237, positive conditional: 0, positive unconditional: 237, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 250, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 237, unknown conditional: 0, unknown unconditional: 237] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 05:28:15,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a844816-883b-4528-ae90-cd32f053d470/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...