./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/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_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7 --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 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:05:22,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:05:22,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:05:22,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:05:22,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:05:22,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:05:22,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:05:22,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:05:22,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:05:22,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:05:22,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:05:22,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:05:22,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:05:22,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:05:22,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:05:22,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:05:22,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:05:22,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:05:22,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:05:22,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:05:22,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:05:22,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:05:22,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:05:22,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:05:22,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:05:22,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:05:22,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:05:22,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:05:22,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:05:22,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:05:22,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:05:22,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:05:22,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:05:22,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:05:22,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:05:22,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:05:22,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:05:22,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:05:22,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:05:22,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:05:22,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:05:22,558 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 20:05:22,585 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:05:22,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:05:22,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:05:22,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:05:22,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:05:22,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:05:22,587 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:05:22,588 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:05:22,588 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:05:22,588 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:05:22,588 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:05:22,589 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:05:22,589 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:05:22,589 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:05:22,589 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:05:22,590 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:05:22,590 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:05:22,590 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:05:22,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:05:22,591 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:05:22,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:05:22,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:05:22,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:05:22,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:05:22,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:05:22,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:05:22,593 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:05:22,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:05:22,593 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:05:22,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:05:22,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:05:22,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:05:22,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:05:22,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:05:22,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:05:22,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:05:22,595 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:05:22,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:05:22,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:05:22,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:05:22,596 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:05:22,597 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_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2021-11-25 20:05:22,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:05:22,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:05:22,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:05:22,869 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:05:22,870 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:05:22,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2021-11-25 20:05:22,943 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/data/7caa24e87/af162a313dff40009b3b229edcf6f7f2/FLAGb6f63f241 [2021-11-25 20:05:23,469 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:05:23,470 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2021-11-25 20:05:23,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/data/7caa24e87/af162a313dff40009b3b229edcf6f7f2/FLAGb6f63f241 [2021-11-25 20:05:23,764 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/data/7caa24e87/af162a313dff40009b3b229edcf6f7f2 [2021-11-25 20:05:23,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:05:23,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:05:23,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:05:23,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:05:23,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:05:23,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:05:23" (1/1) ... [2021-11-25 20:05:23,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63aee1da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:23, skipping insertion in model container [2021-11-25 20:05:23,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:05:23" (1/1) ... [2021-11-25 20:05:23,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:05:23,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:05:24,003 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_75629a1a-d65a-41a9-b810-81c0f5bad7be/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2021-11-25 20:05:24,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:05:24,173 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:05:24,189 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_75629a1a-d65a-41a9-b810-81c0f5bad7be/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2021-11-25 20:05:24,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:05:24,277 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:05:24,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24 WrapperNode [2021-11-25 20:05:24,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:05:24,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:05:24,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:05:24,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:05:24,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (1/1) ... [2021-11-25 20:05:24,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (1/1) ... [2021-11-25 20:05:24,320 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-25 20:05:24,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:05:24,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:05:24,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:05:24,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:05:24,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (1/1) ... [2021-11-25 20:05:24,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (1/1) ... [2021-11-25 20:05:24,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (1/1) ... [2021-11-25 20:05:24,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (1/1) ... [2021-11-25 20:05:24,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (1/1) ... [2021-11-25 20:05:24,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (1/1) ... [2021-11-25 20:05:24,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (1/1) ... [2021-11-25 20:05:24,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:05:24,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:05:24,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:05:24,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:05:24,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (1/1) ... [2021-11-25 20:05:24,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:05:24,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:05:24,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:05:24,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:05:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:05:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-25 20:05:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:05:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:05:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-25 20:05:24,445 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-25 20:05:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:05:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:05:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:05:24,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:05:24,447 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 20:05:24,583 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:05:24,585 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:05:24,806 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:05:24,813 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:05:24,817 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 20:05:24,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:05:24 BoogieIcfgContainer [2021-11-25 20:05:24,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:05:24,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:05:24,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:05:24,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:05:24,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:05:23" (1/3) ... [2021-11-25 20:05:24,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eea9cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:05:24, skipping insertion in model container [2021-11-25 20:05:24,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:05:24" (2/3) ... [2021-11-25 20:05:24,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eea9cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:05:24, skipping insertion in model container [2021-11-25 20:05:24,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:05:24" (3/3) ... [2021-11-25 20:05:24,832 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2021-11-25 20:05:24,836 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 20:05:24,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:05:24,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:05:24,837 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 20:05:24,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,860 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,861 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,861 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,861 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,868 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,869 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:05:24,872 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 20:05:24,919 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:05:24,926 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 [2021-11-25 20:05:24,927 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:05:24,958 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:05:24,973 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions, 137 flow [2021-11-25 20:05:24,976 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 66 transitions, 137 flow [2021-11-25 20:05:24,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 137 flow [2021-11-25 20:05:25,024 INFO L129 PetriNetUnfolder]: 1/65 cut-off events. [2021-11-25 20:05:25,024 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-25 20:05:25,027 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. [2021-11-25 20:05:25,029 INFO L116 LiptonReduction]: Number of co-enabled transitions 460 [2021-11-25 20:05:27,694 INFO L131 LiptonReduction]: Checked pairs total: 1166 [2021-11-25 20:05:27,694 INFO L133 LiptonReduction]: Total number of compositions: 65 [2021-11-25 20:05:27,703 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2021-11-25 20:05:27,714 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) [2021-11-25 20:05:27,716 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) [2021-11-25 20:05:27,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 20:05:27,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:27,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 20:05:27,722 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:05:27,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:27,727 INFO L85 PathProgramCache]: Analyzing trace with hash 228077249, now seen corresponding path program 1 times [2021-11-25 20:05:27,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:27,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420935187] [2021-11-25 20:05:27,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:27,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:05:27,869 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:05:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:05:27,946 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:05:27,947 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:05:27,949 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-25 20:05:27,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-25 20:05:27,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:05:27,955 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-25 20:05:27,959 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-25 20:05:27,959 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 20:05:27,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:05:27 BasicIcfg [2021-11-25 20:05:27,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 20:05:27,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 20:05:27,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 20:05:27,993 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 20:05:27,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:05:24" (3/4) ... [2021-11-25 20:05:27,996 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 20:05:28,040 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 20:05:28,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 20:05:28,042 INFO L158 Benchmark]: Toolchain (without parser) took 4273.29ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 84.4MB in the beginning and 54.9MB in the end (delta: 29.5MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2021-11-25 20:05:28,043 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:05:28,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.22ms. Allocated memory is still 115.3MB. Free memory was 84.2MB in the beginning and 79.1MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 20:05:28,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.99ms. Allocated memory is still 115.3MB. Free memory was 79.1MB in the beginning and 77.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 20:05:28,045 INFO L158 Benchmark]: Boogie Preprocessor took 22.84ms. Allocated memory is still 115.3MB. Free memory was 77.0MB in the beginning and 75.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 20:05:28,046 INFO L158 Benchmark]: RCFGBuilder took 474.96ms. Allocated memory is still 115.3MB. Free memory was 75.8MB in the beginning and 64.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 20:05:28,047 INFO L158 Benchmark]: TraceAbstraction took 3167.06ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 64.2MB in the beginning and 57.0MB in the end (delta: 7.1MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2021-11-25 20:05:28,047 INFO L158 Benchmark]: Witness Printer took 47.95ms. Allocated memory is still 138.4MB. Free memory was 57.0MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 20:05:28,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.22ms. Allocated memory is still 115.3MB. Free memory was 84.2MB in the beginning and 79.1MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.99ms. Allocated memory is still 115.3MB. Free memory was 79.1MB in the beginning and 77.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.84ms. Allocated memory is still 115.3MB. Free memory was 77.0MB in the beginning and 75.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.96ms. Allocated memory is still 115.3MB. Free memory was 75.8MB in the beginning and 64.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3167.06ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 64.2MB in the beginning and 57.0MB in the end (delta: 7.1MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Witness Printer took 47.95ms. Allocated memory is still 138.4MB. Free memory was 57.0MB in the beginning and 54.9MB 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: 2.7s, 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: 3.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, 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, 0.0s 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! [2021-11-25 20:05:28,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75629a1a-d65a-41a9-b810-81c0f5bad7be/bin/utaipan-eEHZpOm5b7/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