./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P --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 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:51:10,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:51:10,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:51:10,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:51:10,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:51:10,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:51:10,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:51:10,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:51:10,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:51:10,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:51:10,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:51:10,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:51:10,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:51:10,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:51:10,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:51:10,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:51:10,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:51:10,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:51:10,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:51:10,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:51:10,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:51:10,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:51:10,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:51:10,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:51:10,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:51:10,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:51:10,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:51:10,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:51:10,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:51:10,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:51:10,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:51:10,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:51:10,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:51:10,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:51:10,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:51:10,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:51:10,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:51:10,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:51:10,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:51:10,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:51:10,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:51:10,528 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:51:10,554 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:51:10,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:51:10,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:51:10,555 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:51:10,556 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:51:10,556 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:51:10,556 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:51:10,556 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:51:10,556 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:51:10,557 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:51:10,557 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:51:10,557 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:51:10,557 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:51:10,557 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:51:10,558 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:51:10,558 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:51:10,558 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:51:10,558 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:51:10,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:51:10,559 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:51:10,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:51:10,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:51:10,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:51:10,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:51:10,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:51:10,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:51:10,561 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:51:10,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:51:10,561 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:51:10,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:51:10,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:51:10,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:51:10,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:51:10,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:51:10,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:51:10,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:51:10,563 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:51:10,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:51:10,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:51:10,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:51:10,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:51:10,564 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_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2021-11-21 01:51:10,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:51:10,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:51:10,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:51:10,946 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:51:10,947 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:51:10,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2021-11-21 01:51:11,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/data/609a365a2/d722a800a6994e448566286c2c749c08/FLAG60e99acdd [2021-11-21 01:51:11,701 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:51:11,702 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2021-11-21 01:51:11,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/data/609a365a2/d722a800a6994e448566286c2c749c08/FLAG60e99acdd [2021-11-21 01:51:11,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/data/609a365a2/d722a800a6994e448566286c2c749c08 [2021-11-21 01:51:11,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:51:11,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:51:11,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:51:11,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:51:11,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:51:11,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:51:11" (1/1) ... [2021-11-21 01:51:11,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df4f391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:11, skipping insertion in model container [2021-11-21 01:51:11,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:51:11" (1/1) ... [2021-11-21 01:51:11,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:51:12,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:51:12,245 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_68185976-99e1-4e09-b6f9-0d358ee02b90/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2021-11-21 01:51:12,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:51:12,507 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:51:12,524 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_68185976-99e1-4e09-b6f9-0d358ee02b90/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2021-11-21 01:51:12,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:51:12,647 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:51:12,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12 WrapperNode [2021-11-21 01:51:12,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:51:12,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:51:12,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:51:12,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:51:12,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (1/1) ... [2021-11-21 01:51:12,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (1/1) ... [2021-11-21 01:51:12,707 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-21 01:51:12,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:51:12,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:51:12,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:51:12,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:51:12,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (1/1) ... [2021-11-21 01:51:12,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (1/1) ... [2021-11-21 01:51:12,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (1/1) ... [2021-11-21 01:51:12,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (1/1) ... [2021-11-21 01:51:12,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (1/1) ... [2021-11-21 01:51:12,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (1/1) ... [2021-11-21 01:51:12,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (1/1) ... [2021-11-21 01:51:12,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:51:12,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:51:12,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:51:12,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:51:12,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (1/1) ... [2021-11-21 01:51:12,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:51:12,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:51:12,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:51:12,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:51:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:51:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-21 01:51:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:51:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:51:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-21 01:51:12,829 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-21 01:51:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:51:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:51:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:51:12,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:51:12,831 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-21 01:51:13,025 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:51:13,027 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:51:13,266 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:51:13,277 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:51:13,277 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:51:13,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:51:13 BoogieIcfgContainer [2021-11-21 01:51:13,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:51:13,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:51:13,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:51:13,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:51:13,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:51:11" (1/3) ... [2021-11-21 01:51:13,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc0335c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:51:13, skipping insertion in model container [2021-11-21 01:51:13,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:12" (2/3) ... [2021-11-21 01:51:13,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc0335c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:51:13, skipping insertion in model container [2021-11-21 01:51:13,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:51:13" (3/3) ... [2021-11-21 01:51:13,295 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2021-11-21 01:51:13,302 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-21 01:51:13,302 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:51:13,302 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:51:13,302 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-21 01:51:13,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,346 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,347 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,350 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,351 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,358 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,370 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,371 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,371 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,371 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,372 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,372 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:51:13,377 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-21 01:51:13,445 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:51:13,466 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 [2021-11-21 01:51:13,470 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:51:13,492 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-21 01:51:13,510 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions, 137 flow [2021-11-21 01:51:13,514 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 66 transitions, 137 flow [2021-11-21 01:51:13,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 137 flow [2021-11-21 01:51:13,580 INFO L129 PetriNetUnfolder]: 1/65 cut-off events. [2021-11-21 01:51:13,580 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-21 01:51:13,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 1/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2021-11-21 01:51:13,589 INFO L116 LiptonReduction]: Number of co-enabled transitions 460 [2021-11-21 01:51:16,793 INFO L131 LiptonReduction]: Checked pairs total: 1166 [2021-11-21 01:51:16,794 INFO L133 LiptonReduction]: Total number of compositions: 65 [2021-11-21 01:51:16,805 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2021-11-21 01:51:16,825 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 32 states, 30 states have (on average 1.7) internal successors, (51), 31 states have internal predecessors, (51), 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) [2021-11-21 01:51:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.7) internal successors, (51), 31 states have internal predecessors, (51), 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) [2021-11-21 01:51:16,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 01:51:16,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:51:16,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 01:51:16,837 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-21 01:51:16,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:51:16,843 INFO L85 PathProgramCache]: Analyzing trace with hash 228077249, now seen corresponding path program 1 times [2021-11-21 01:51:16,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:51:16,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505304354] [2021-11-21 01:51:16,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:51:16,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:51:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:51:17,044 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:51:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:51:17,150 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 01:51:17,152 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:51:17,154 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-21 01:51:17,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-21 01:51:17,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:51:17,160 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-21 01:51:17,165 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-21 01:51:17,166 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:51:17,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:51:17 BasicIcfg [2021-11-21 01:51:17,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:51:17,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:51:17,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:51:17,204 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:51:17,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:51:13" (3/4) ... [2021-11-21 01:51:17,206 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 01:51:17,273 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 01:51:17,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:51:17,279 INFO L158 Benchmark]: Toolchain (without parser) took 5314.05ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 65.2MB in the beginning and 46.0MB in the end (delta: 19.1MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2021-11-21 01:51:17,280 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 86.0MB. Free memory was 64.2MB in the beginning and 64.1MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:51:17,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.54ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 65.0MB in the beginning and 82.7MB in the end (delta: -17.7MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-11-21 01:51:17,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.13ms. Allocated memory is still 115.3MB. Free memory was 82.7MB in the beginning and 80.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:51:17,283 INFO L158 Benchmark]: Boogie Preprocessor took 28.70ms. Allocated memory is still 115.3MB. Free memory was 80.8MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:51:17,286 INFO L158 Benchmark]: RCFGBuilder took 541.26ms. Allocated memory is still 115.3MB. Free memory was 79.4MB in the beginning and 68.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 01:51:17,287 INFO L158 Benchmark]: TraceAbstraction took 3917.84ms. Allocated memory is still 115.3MB. Free memory was 67.3MB in the beginning and 48.2MB in the end (delta: 19.2MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2021-11-21 01:51:17,287 INFO L158 Benchmark]: Witness Printer took 72.84ms. Allocated memory is still 115.3MB. Free memory was 48.2MB in the beginning and 46.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:51:17,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 86.0MB. Free memory was 64.2MB in the beginning and 64.1MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 684.54ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 65.0MB in the beginning and 82.7MB in the end (delta: -17.7MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.13ms. Allocated memory is still 115.3MB. Free memory was 82.7MB in the beginning and 80.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.70ms. Allocated memory is still 115.3MB. Free memory was 80.8MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 541.26ms. Allocated memory is still 115.3MB. Free memory was 79.4MB in the beginning and 68.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3917.84ms. Allocated memory is still 115.3MB. Free memory was 67.3MB in the beginning and 48.2MB in the end (delta: 19.2MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Witness Printer took 72.84ms. Allocated memory is still 115.3MB. Free memory was 48.2MB in the beginning and 46.0MB 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: 3.3s, 69 PlacesBefore, 17 PlacesAfterwards, 66 TransitionsBefore, 14 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 7 FixpointIterations, 30 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 65 TotalNumberOfCompositions, 1166 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 684, positive: 573, positive conditional: 0, positive unconditional: 573, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 378, positive: 352, positive conditional: 0, positive unconditional: 352, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 378, positive: 328, positive conditional: 0, positive unconditional: 328, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 684, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 378, unknown conditional: 0, unknown unconditional: 378] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - 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: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - UnprovableResult [Line: 694]: 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, 78 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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! [2021-11-21 01:51:17,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68185976-99e1-4e09-b6f9-0d358ee02b90/bin/utaipan-TEXQjIfE4P/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