./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.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_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/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_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/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_c278b82d-3966-483a-9077-e1a60ac659d6/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 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:44:59,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:44:59,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:44:59,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:44:59,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:44:59,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:44:59,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:44:59,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:44:59,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:44:59,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:44:59,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:44:59,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:44:59,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:44:59,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:44:59,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:44:59,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:44:59,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:44:59,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:44:59,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:44:59,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:44:59,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:44:59,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:44:59,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:44:59,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:44:59,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:44:59,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:44:59,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:44:59,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:44:59,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:44:59,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:44:59,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:44:59,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:44:59,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:44:59,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:44:59,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:44:59,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:44:59,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:44:59,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:44:59,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:44:59,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:44:59,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:44:59,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:44:59,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:44:59,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:44:59,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:44:59,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:44:59,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:44:59,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:44:59,516 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:44:59,516 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:44:59,517 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:44:59,517 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:44:59,518 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:44:59,518 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:44:59,519 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:44:59,519 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:44:59,519 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:44:59,519 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:44:59,520 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:44:59,520 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:44:59,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:44:59,521 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:44:59,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:44:59,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:44:59,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:44:59,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:44:59,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:44:59,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:44:59,524 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:44:59,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:44:59,525 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:44:59,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:44:59,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:44:59,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:44:59,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:44:59,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:44:59,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:44:59,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:44:59,527 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:44:59,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:44:59,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:44:59,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:44:59,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:44:59,528 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_c278b82d-3966-483a-9077-e1a60ac659d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d [2021-11-25 18:44:59,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:44:59,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:44:59,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:44:59,842 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:44:59,843 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:44:59,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2021-11-25 18:44:59,920 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/data/bad0e25f2/216216a654cf474e9b9367e58ef0d808/FLAGfdfebbbf3 [2021-11-25 18:45:00,618 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:45:00,623 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2021-11-25 18:45:00,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/data/bad0e25f2/216216a654cf474e9b9367e58ef0d808/FLAGfdfebbbf3 [2021-11-25 18:45:00,880 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/data/bad0e25f2/216216a654cf474e9b9367e58ef0d808 [2021-11-25 18:45:00,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:45:00,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:45:00,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:45:00,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:45:00,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:45:00,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:45:00" (1/1) ... [2021-11-25 18:45:00,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a7c944f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:00, skipping insertion in model container [2021-11-25 18:45:00,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:45:00" (1/1) ... [2021-11-25 18:45:00,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:45:00,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:45:01,151 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_c278b82d-3966-483a-9077-e1a60ac659d6/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2021-11-25 18:45:01,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:45:01,461 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:45:01,481 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_c278b82d-3966-483a-9077-e1a60ac659d6/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2021-11-25 18:45:01,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:45:01,585 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:45:01,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01 WrapperNode [2021-11-25 18:45:01,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:45:01,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:45:01,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:45:01,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:45:01,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (1/1) ... [2021-11-25 18:45:01,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (1/1) ... [2021-11-25 18:45:01,655 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2021-11-25 18:45:01,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:45:01,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:45:01,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:45:01,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:45:01,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (1/1) ... [2021-11-25 18:45:01,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (1/1) ... [2021-11-25 18:45:01,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (1/1) ... [2021-11-25 18:45:01,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (1/1) ... [2021-11-25 18:45:01,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (1/1) ... [2021-11-25 18:45:01,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (1/1) ... [2021-11-25 18:45:01,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (1/1) ... [2021-11-25 18:45:01,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:45:01,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:45:01,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:45:01,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:45:01,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (1/1) ... [2021-11-25 18:45:01,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:45:01,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:45:01,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:45:01,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:45:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:45:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:45:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-25 18:45:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:45:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:45:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-25 18:45:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-25 18:45:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:45:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:45:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:45:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:45:01,809 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 18:45:01,980 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:45:01,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:45:02,147 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:45:02,157 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:45:02,157 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:45:02,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:45:02 BoogieIcfgContainer [2021-11-25 18:45:02,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:45:02,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:45:02,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:45:02,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:45:02,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:45:00" (1/3) ... [2021-11-25 18:45:02,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a563452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:45:02, skipping insertion in model container [2021-11-25 18:45:02,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:45:01" (2/3) ... [2021-11-25 18:45:02,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a563452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:45:02, skipping insertion in model container [2021-11-25 18:45:02,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:45:02" (3/3) ... [2021-11-25 18:45:02,171 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2021-11-25 18:45:02,177 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 18:45:02,178 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:45:02,178 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:45:02,178 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 18:45:02,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,223 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,223 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,223 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,224 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,224 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,224 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,224 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,225 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,225 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,234 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,235 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,235 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,235 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,241 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,255 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:45:02,261 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-25 18:45:02,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:45:02,325 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 18:45:02,325 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 18:45:02,343 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 18:45:02,384 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 71 transitions, 150 flow [2021-11-25 18:45:02,388 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 71 transitions, 150 flow [2021-11-25 18:45:02,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2021-11-25 18:45:02,439 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2021-11-25 18:45:02,440 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-25 18:45:02,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 1/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2021-11-25 18:45:02,446 INFO L116 LiptonReduction]: Number of co-enabled transitions 448 [2021-11-25 18:45:05,742 INFO L131 LiptonReduction]: Checked pairs total: 1116 [2021-11-25 18:45:05,742 INFO L133 LiptonReduction]: Total number of compositions: 58 [2021-11-25 18:45:05,754 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 17 transitions, 42 flow [2021-11-25 18:45:05,768 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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 18:45:05,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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 18:45:05,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 18:45:05,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:45:05,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 18:45:05,779 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 18:45:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:45:05,785 INFO L85 PathProgramCache]: Analyzing trace with hash 7669551, now seen corresponding path program 1 times [2021-11-25 18:45:05,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:45:05,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026071855] [2021-11-25 18:45:05,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:45:05,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:45:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:45:05,942 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 18:45:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:45:05,996 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 18:45:05,998 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 18:45:06,000 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-25 18:45:06,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-25 18:45:06,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:45:06,006 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-25 18:45:06,012 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-25 18:45:06,012 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:45:06,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:45:06 BasicIcfg [2021-11-25 18:45:06,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:45:06,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:45:06,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:45:06,037 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:45:06,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:45:02" (3/4) ... [2021-11-25 18:45:06,040 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 18:45:06,085 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:45:06,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:45:06,087 INFO L158 Benchmark]: Toolchain (without parser) took 5202.21ms. Allocated memory was 79.7MB in the beginning and 123.7MB in the end (delta: 44.0MB). Free memory was 45.3MB in the beginning and 69.4MB in the end (delta: -24.2MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2021-11-25 18:45:06,088 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 79.7MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:45:06,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 699.96ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 45.0MB in the beginning and 69.3MB in the end (delta: -24.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-11-25 18:45:06,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.62ms. Allocated memory is still 98.6MB. Free memory was 69.3MB in the beginning and 67.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:45:06,091 INFO L158 Benchmark]: Boogie Preprocessor took 33.46ms. Allocated memory is still 98.6MB. Free memory was 67.6MB in the beginning and 66.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:45:06,091 INFO L158 Benchmark]: RCFGBuilder took 468.87ms. Allocated memory is still 98.6MB. Free memory was 66.0MB in the beginning and 54.6MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 18:45:06,092 INFO L158 Benchmark]: TraceAbstraction took 3873.39ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 71.5MB in the end (delta: -17.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-11-25 18:45:06,093 INFO L158 Benchmark]: Witness Printer took 49.58ms. Allocated memory is still 123.7MB. Free memory was 71.5MB in the beginning and 69.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:45:06,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 79.7MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 699.96ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 45.0MB in the beginning and 69.3MB in the end (delta: -24.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.62ms. Allocated memory is still 98.6MB. Free memory was 69.3MB in the beginning and 67.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.46ms. Allocated memory is still 98.6MB. Free memory was 67.6MB in the beginning and 66.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.87ms. Allocated memory is still 98.6MB. Free memory was 66.0MB in the beginning and 54.6MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3873.39ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 71.5MB in the end (delta: -17.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 49.58ms. Allocated memory is still 123.7MB. Free memory was 71.5MB in the beginning and 69.4MB 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: 3.4s, 74 PlacesBefore, 21 PlacesAfterwards, 71 TransitionsBefore, 17 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 1116 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 643, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 377, positive: 336, positive conditional: 0, positive unconditional: 336, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 377, positive: 307, positive conditional: 0, positive unconditional: 307, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 186, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 110, negative conditional: 0, negative unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 643, positive: 178, positive conditional: 0, positive unconditional: 178, negative: 88, negative conditional: 0, negative unconditional: 88, unknown: 377, unknown conditional: 0, unknown unconditional: 377] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - 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 glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={6:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: 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, 87 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=38occurred 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, 4 NumberOfCodeBlocks, 4 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 18:45:06,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c278b82d-3966-483a-9077-e1a60ac659d6/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