./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs --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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:59:51,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:59:51,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:59:51,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:59:51,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:59:51,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:59:51,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:59:51,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:59:51,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:59:51,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:59:51,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:59:51,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:59:51,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:59:51,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:59:51,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:59:51,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:59:51,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:59:51,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:59:51,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:59:51,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:59:51,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:59:51,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:59:51,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:59:51,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:59:51,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:59:51,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:59:51,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:59:51,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:59:51,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:59:51,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:59:51,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:59:51,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:59:51,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:59:51,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:59:51,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:59:51,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:59:51,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:59:51,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:59:51,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:59:51,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:59:51,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:59:51,519 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 13:59:51,560 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:59:51,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:59:51,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:59:51,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:59:51,563 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:59:51,563 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:59:51,563 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:59:51,564 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:59:51,564 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:59:51,564 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:59:51,565 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:59:51,566 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:59:51,566 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:59:51,566 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:59:51,567 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:59:51,567 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:59:51,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:59:51,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:59:51,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:59:51,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:59:51,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:59:51,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:59:51,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:59:51,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:59:51,570 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:59:51,571 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:59:51,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:59:51,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:59:51,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:59:51,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:59:51,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:59:51,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:51,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:59:51,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:59:51,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:59:51,575 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:59:51,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:59:51,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:59:51,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:59:51,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:59:51,577 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_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2021-11-19 13:59:51,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:59:51,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:59:51,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:59:51,869 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:59:51,869 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:59:51,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-11-19 13:59:51,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/data/64bd172b3/5dbb630027294fa5817b68ea277836f4/FLAGff6a6c4cb [2021-11-19 13:59:52,533 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:59:52,533 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-11-19 13:59:52,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/data/64bd172b3/5dbb630027294fa5817b68ea277836f4/FLAGff6a6c4cb [2021-11-19 13:59:52,847 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/data/64bd172b3/5dbb630027294fa5817b68ea277836f4 [2021-11-19 13:59:52,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:59:52,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:59:52,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:52,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:59:52,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:59:52,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:52,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6119ea3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52, skipping insertion in model container [2021-11-19 13:59:52,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:52,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:59:52,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:53,114 WARN L230 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_05f53049-f2a5-49a9-a311-18cac7775a80/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2021-11-19 13:59:53,336 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:53,346 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:59:53,359 WARN L230 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_05f53049-f2a5-49a9-a311-18cac7775a80/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2021-11-19 13:59:53,401 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:53,452 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:59:53,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53 WrapperNode [2021-11-19 13:59:53,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:53,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:59:53,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:59:53,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:59:53,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,517 INFO L137 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-11-19 13:59:53,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:59:53,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:59:53,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:59:53,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:59:53,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:59:53,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:59:53,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:59:53,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:59:53,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:53,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:59:53,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:59:53,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:59:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 13:59:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:59:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:59:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-19 13:59:53,665 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-19 13:59:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:59:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 13:59:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:59:53,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:59:53,667 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 13:59:53,841 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:59:53,843 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:59:54,024 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:59:54,031 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:59:54,036 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 13:59:54,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:59:54 BoogieIcfgContainer [2021-11-19 13:59:54,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:59:54,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:59:54,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:59:54,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:59:54,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:59:52" (1/3) ... [2021-11-19 13:59:54,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490341e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:59:54, skipping insertion in model container [2021-11-19 13:59:54,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (2/3) ... [2021-11-19 13:59:54,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490341e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:59:54, skipping insertion in model container [2021-11-19 13:59:54,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:59:54" (3/3) ... [2021-11-19 13:59:54,047 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-11-19 13:59:54,053 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 13:59:54,053 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:59:54,053 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:59:54,053 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 13:59:54,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,081 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,081 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,081 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,081 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,081 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,083 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,083 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,083 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,083 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,083 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,084 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,092 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:59:54,095 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-19 13:59:54,158 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:59:54,164 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 [2021-11-19 13:59:54,164 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 13:59:54,177 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 13:59:54,192 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 91 flow [2021-11-19 13:59:54,195 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 91 flow [2021-11-19 13:59:54,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2021-11-19 13:59:54,225 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2021-11-19 13:59:54,226 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 13:59:54,228 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. [2021-11-19 13:59:54,230 INFO L116 LiptonReduction]: Number of co-enabled transitions 256 [2021-11-19 13:59:55,703 INFO L131 LiptonReduction]: Checked pairs total: 179 [2021-11-19 13:59:55,703 INFO L133 LiptonReduction]: Total number of compositions: 44 [2021-11-19 13:59:55,713 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 10 places, 6 transitions, 17 flow [2021-11-19 13:59:55,722 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) [2021-11-19 13:59:55,724 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) [2021-11-19 13:59:55,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 13:59:55,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:55,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 13:59:55,731 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:59:55,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:55,737 INFO L85 PathProgramCache]: Analyzing trace with hash 179360, now seen corresponding path program 1 times [2021-11-19 13:59:55,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:59:55,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814885850] [2021-11-19 13:59:55,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:55,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:59:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 13:59:55,861 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 13:59:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 13:59:55,915 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 13:59:55,917 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 13:59:55,918 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-19 13:59:55,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-19 13:59:55,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-19 13:59:55,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 13:59:55,927 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 13:59:55,933 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 13:59:55,936 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 13:59:55,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:59:55 BasicIcfg [2021-11-19 13:59:55,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 13:59:55,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 13:59:55,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 13:59:55,958 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 13:59:55,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:59:54" (3/4) ... [2021-11-19 13:59:55,960 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 13:59:56,025 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 13:59:56,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 13:59:56,029 INFO L158 Benchmark]: Toolchain (without parser) took 3177.34ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 53.3MB in the beginning and 41.7MB in the end (delta: 11.6MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2021-11-19 13:59:56,030 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 62.4MB in the beginning and 62.3MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:59:56,031 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.11ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 53.1MB in the beginning and 85.3MB in the end (delta: -32.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 13:59:56,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.06ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 83.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:59:56,032 INFO L158 Benchmark]: Boogie Preprocessor took 52.21ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 82.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:59:56,034 INFO L158 Benchmark]: RCFGBuilder took 466.51ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 72.2MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 13:59:56,035 INFO L158 Benchmark]: TraceAbstraction took 1916.74ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 43.8MB in the end (delta: 27.9MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2021-11-19 13:59:56,035 INFO L158 Benchmark]: Witness Printer took 69.93ms. Allocated memory is still 117.4MB. Free memory was 43.8MB in the beginning and 41.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:59:56,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 62.4MB in the beginning and 62.3MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.11ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 53.1MB in the beginning and 85.3MB in the end (delta: -32.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.06ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 83.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.21ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 82.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 466.51ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 72.2MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1916.74ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 43.8MB in the end (delta: 27.9MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * Witness Printer took 69.93ms. Allocated memory is still 117.4MB. Free memory was 43.8MB in the beginning and 41.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 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: 1.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, 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! [2021-11-19 13:59:56,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f53049-f2a5-49a9-a311-18cac7775a80/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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