./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF --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 efd273c7d755fee5b08c1ba81e4b1fd2265522d7f0703d6f8ec42ad387cd2968 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:43:18,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:43:18,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:43:18,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:43:18,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:43:18,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:43:18,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:43:18,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:43:18,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:43:18,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:43:18,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:43:18,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:43:18,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:43:18,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:43:18,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:43:18,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:43:18,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:43:18,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:43:18,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:43:18,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:43:18,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:43:18,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:43:18,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:43:18,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:43:18,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:43:18,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:43:18,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:43:18,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:43:18,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:43:18,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:43:18,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:43:18,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:43:18,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:43:18,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:43:18,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:43:18,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:43:18,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:43:18,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:43:18,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:43:18,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:43:18,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:43:18,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:43:18,526 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:43:18,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:43:18,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:43:18,531 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:43:18,531 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:43:18,532 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:43:18,532 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:43:18,532 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:43:18,540 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:43:18,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:43:18,540 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:43:18,541 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:43:18,541 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:43:18,541 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:43:18,543 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:43:18,543 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:43:18,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:43:18,544 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:43:18,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:43:18,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:43:18,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:43:18,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:43:18,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:43:18,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:43:18,546 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:43:18,547 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:43:18,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:43:18,547 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:43:18,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:43:18,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:43:18,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:43:18,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:18,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:43:18,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:43:18,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:43:18,550 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:43:18,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:43:18,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:43:18,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:43:18,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:43:18,551 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_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efd273c7d755fee5b08c1ba81e4b1fd2265522d7f0703d6f8ec42ad387cd2968 [2021-11-12 23:43:18,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:43:18,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:43:18,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:43:18,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:43:18,911 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:43:18,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2021-11-12 23:43:18,989 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/data/cd6ca7567/91a10b010a4f4a788a7e11a477d496d0/FLAGab643f3a8 [2021-11-12 23:43:19,597 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:43:19,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2021-11-12 23:43:19,615 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/data/cd6ca7567/91a10b010a4f4a788a7e11a477d496d0/FLAGab643f3a8 [2021-11-12 23:43:19,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/data/cd6ca7567/91a10b010a4f4a788a7e11a477d496d0 [2021-11-12 23:43:19,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:43:19,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:43:19,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:19,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:43:19,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:43:19,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:19" (1/1) ... [2021-11-12 23:43:19,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a8479f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:19, skipping insertion in model container [2021-11-12 23:43:19,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:19" (1/1) ... [2021-11-12 23:43:19,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:43:19,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:43:20,171 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_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2021-11-12 23:43:20,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:20,373 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:43:20,390 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_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2021-11-12 23:43:20,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:20,487 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:43:20,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20 WrapperNode [2021-11-12 23:43:20,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:20,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:43:20,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:43:20,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:43:20,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:43:20,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:43:20,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:43:20,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:43:20,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:43:20,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:43:20,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:43:20,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:43:20,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (1/1) ... [2021-11-12 23:43:20,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:20,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:43:20,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:43:20,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:43:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:43:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:43:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-12 23:43:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-12 23:43:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:43:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:43:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:43:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:43:20,736 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:43:21,125 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:43:21,125 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:43:21,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:43:21 BoogieIcfgContainer [2021-11-12 23:43:21,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:43:21,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:43:21,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:43:21,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:43:21,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:43:19" (1/3) ... [2021-11-12 23:43:21,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a4d13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:43:21, skipping insertion in model container [2021-11-12 23:43:21,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:20" (2/3) ... [2021-11-12 23:43:21,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a4d13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:43:21, skipping insertion in model container [2021-11-12 23:43:21,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:43:21" (3/3) ... [2021-11-12 23:43:21,141 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2021-11-12 23:43:21,152 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:43:21,152 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:43:21,153 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:43:21,153 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:43:21,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,198 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,198 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,198 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,199 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,206 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,208 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,208 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,209 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,209 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,219 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:43:21,225 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-12 23:43:21,297 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:43:21,309 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 [2021-11-12 23:43:21,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:43:21,345 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:43:21,366 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 91 flow [2021-11-12 23:43:21,370 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 91 flow [2021-11-12 23:43:21,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2021-11-12 23:43:21,427 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2021-11-12 23:43:21,427 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-12 23:43:21,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 1/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-11-12 23:43:21,432 INFO L116 LiptonReduction]: Number of co-enabled transitions 256 [2021-11-12 23:43:23,569 INFO L131 LiptonReduction]: Checked pairs total: 179 [2021-11-12 23:43:23,570 INFO L133 LiptonReduction]: Total number of compositions: 44 [2021-11-12 23:43:23,582 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 10 places, 6 transitions, 17 flow [2021-11-12 23:43:23,594 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-11-12 23:43:23,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-11-12 23:43:23,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-12 23:43:23,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:43:23,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-12 23:43:23,608 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:43:23,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:43:23,614 INFO L85 PathProgramCache]: Analyzing trace with hash 179360, now seen corresponding path program 1 times [2021-11-12 23:43:23,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:43:23,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587744102] [2021-11-12 23:43:23,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:43:23,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:43:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:43:23,762 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:43:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:43:23,817 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:43:23,821 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:43:23,823 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-12 23:43:23,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-12 23:43:23,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-12 23:43:23,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:43:23,829 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-12 23:43:23,836 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 23:43:23,837 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:43:23,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:43:23 BasicIcfg [2021-11-12 23:43:23,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:43:23,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:43:23,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:43:23,872 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:43:23,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:43:21" (3/4) ... [2021-11-12 23:43:23,874 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-12 23:43:23,930 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:43:23,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:43:23,932 INFO L158 Benchmark]: Toolchain (without parser) took 4078.25ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 49.3MB in the beginning and 58.7MB in the end (delta: -9.5MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-11-12 23:43:23,932 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 88.1MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:43:23,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.08ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 49.0MB in the beginning and 77.6MB in the end (delta: -28.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:43:23,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.32ms. Allocated memory is still 109.1MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:43:23,934 INFO L158 Benchmark]: Boogie Preprocessor took 53.88ms. Allocated memory is still 109.1MB. Free memory was 75.5MB in the beginning and 74.5MB in the end (delta: 993.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:43:23,934 INFO L158 Benchmark]: RCFGBuilder took 508.99ms. Allocated memory is still 109.1MB. Free memory was 74.5MB in the beginning and 64.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 23:43:23,935 INFO L158 Benchmark]: TraceAbstraction took 2737.33ms. Allocated memory is still 109.1MB. Free memory was 63.8MB in the beginning and 60.1MB in the end (delta: 3.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-11-12 23:43:23,935 INFO L158 Benchmark]: Witness Printer took 62.28ms. Allocated memory is still 109.1MB. Free memory was 60.1MB in the beginning and 58.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:43:23,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 88.1MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.08ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 49.0MB in the beginning and 77.6MB in the end (delta: -28.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.32ms. Allocated memory is still 109.1MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.88ms. Allocated memory is still 109.1MB. Free memory was 75.5MB in the beginning and 74.5MB in the end (delta: 993.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 508.99ms. Allocated memory is still 109.1MB. Free memory was 74.5MB in the beginning and 64.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2737.33ms. Allocated memory is still 109.1MB. Free memory was 63.8MB in the beginning and 60.1MB in the end (delta: 3.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Witness Printer took 62.28ms. Allocated memory is still 109.1MB. Free memory was 60.1MB in the beginning and 58.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 46 PlacesBefore, 10 PlacesAfterwards, 43 TransitionsBefore, 6 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 179 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 179, positive: 179, positive conditional: 0, positive unconditional: 179, 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: 163, positive: 163, positive conditional: 0, positive unconditional: 163, 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: 163, positive: 163, positive conditional: 0, positive unconditional: 163, 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: 179, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 163, unknown conditional: 0, unknown unconditional: 163] , 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! [2021-11-12 23:43:24,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3a43efa-7658-4bdd-a4f7-44a8f8b928eb/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE