./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur --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 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:14:22,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:14:22,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:14:22,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:14:22,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:14:22,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:14:22,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:14:22,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:14:22,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:14:22,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:14:22,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:14:22,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:14:22,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:14:22,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:14:22,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:14:22,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:14:22,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:14:22,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:14:23,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:14:23,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:14:23,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:14:23,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:14:23,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:14:23,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:14:23,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:14:23,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:14:23,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:14:23,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:14:23,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:14:23,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:14:23,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:14:23,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:14:23,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:14:23,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:14:23,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:14:23,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:14:23,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:14:23,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:14:23,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:14:23,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:14:23,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:14:23,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:14:23,051 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:14:23,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:14:23,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:14:23,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:14:23,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:14:23,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:14:23,053 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:14:23,053 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:14:23,054 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:14:23,054 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:14:23,054 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:14:23,054 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:14:23,054 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:14:23,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:14:23,055 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:14:23,055 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:14:23,055 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:14:23,055 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:14:23,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:14:23,056 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:14:23,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:14:23,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:14:23,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:14:23,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:14:23,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:14:23,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:14:23,057 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:14:23,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:14:23,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:14:23,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:14:23,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:14:23,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:14:23,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:14:23,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:14:23,059 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:14:23,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:14:23,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:14:23,059 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:14:23,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:14:23,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:14:23,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:14:23,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 [2022-11-26 00:14:23,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:14:23,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:14:23,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:14:23,329 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:14:23,329 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:14:23,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-11-26 00:14:26,453 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:14:26,816 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:14:26,816 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-11-26 00:14:26,837 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/data/94d47448f/623c187027084eebb14c8e20d81d1ee0/FLAG3467b7f2e [2022-11-26 00:14:26,855 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/data/94d47448f/623c187027084eebb14c8e20d81d1ee0 [2022-11-26 00:14:26,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:14:26,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:14:26,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:14:26,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:14:26,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:14:26,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:14:26" (1/1) ... [2022-11-26 00:14:26,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3621ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:26, skipping insertion in model container [2022-11-26 00:14:26,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:14:26" (1/1) ... [2022-11-26 00:14:26,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:14:26,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:14:27,166 WARN L237 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_2b7b17d2-80e4-438f-8206-58e476f6ce24/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-11-26 00:14:27,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:14:27,356 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:14:27,371 WARN L237 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_2b7b17d2-80e4-438f-8206-58e476f6ce24/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-11-26 00:14:27,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:14:27,454 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:14:27,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27 WrapperNode [2022-11-26 00:14:27,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:14:27,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:14:27,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:14:27,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:14:27,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,507 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-11-26 00:14:27,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:14:27,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:14:27,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:14:27,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:14:27,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,528 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:14:27,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:14:27,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:14:27,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:14:27,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:14:27,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:14:27,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:14:27,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:14:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:14:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:14:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:14:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:14:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:14:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:14:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:14:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:14:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:14:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:14:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:14:27,615 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:14:27,739 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:14:27,741 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:14:27,923 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:14:27,937 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:14:27,937 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:14:27,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:14:27 BoogieIcfgContainer [2022-11-26 00:14:27,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:14:27,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:14:27,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:14:27,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:14:27,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:14:26" (1/3) ... [2022-11-26 00:14:27,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac0f307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:14:27, skipping insertion in model container [2022-11-26 00:14:27,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (2/3) ... [2022-11-26 00:14:27,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac0f307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:14:27, skipping insertion in model container [2022-11-26 00:14:27,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:14:27" (3/3) ... [2022-11-26 00:14:27,948 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2022-11-26 00:14:27,973 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:14:28,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:14:28,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:14:28,002 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:14:28,114 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-26 00:14:28,169 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:14:28,190 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 71 transitions, 150 flow [2022-11-26 00:14:28,199 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 71 transitions, 150 flow [2022-11-26 00:14:28,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2022-11-26 00:14:28,269 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-11-26 00:14:28,270 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-26 00:14:28,273 INFO L83 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. [2022-11-26 00:14:28,274 INFO L119 LiptonReduction]: Number of co-enabled transitions 448 [2022-11-26 00:14:31,621 INFO L134 LiptonReduction]: Checked pairs total: 1213 [2022-11-26 00:14:31,622 INFO L136 LiptonReduction]: Total number of compositions: 58 [2022-11-26 00:14:31,630 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 17 transitions, 42 flow [2022-11-26 00:14:31,644 INFO L135 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) [2022-11-26 00:14:31,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:14:31,676 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@258d9c27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:14:31,676 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:14:31,678 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) [2022-11-26 00:14:31,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:14:31,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:31,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:14:31,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-26 00:14:31,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:31,689 INFO L85 PathProgramCache]: Analyzing trace with hash 7669768, now seen corresponding path program 1 times [2022-11-26 00:14:31,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:31,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999100221] [2022-11-26 00:14:31,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:31,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:32,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:32,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:32,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999100221] [2022-11-26 00:14:32,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999100221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:32,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:32,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:14:32,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322989362] [2022-11-26 00:14:32,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:32,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:14:32,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:32,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:14:32,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:14:32,153 INFO L87 Difference]: Start difference. First 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-26 00:14:32,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:32,202 INFO L93 Difference]: Finished difference Result 35 states and 52 transitions. [2022-11-26 00:14:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:14:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-11-26 00:14:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:32,213 INFO L225 Difference]: With dead ends: 35 [2022-11-26 00:14:32,213 INFO L226 Difference]: Without dead ends: 20 [2022-11-26 00:14:32,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:14:32,222 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:32,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:14:32,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-26 00:14:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-26 00:14:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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) [2022-11-26 00:14:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-11-26 00:14:32,262 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 4 [2022-11-26 00:14:32,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:32,263 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-26 00:14:32,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-26 00:14:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-11-26 00:14:32,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:14:32,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:32,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:32,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:14:32,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-26 00:14:32,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:32,266 INFO L85 PathProgramCache]: Analyzing trace with hash 856241267, now seen corresponding path program 1 times [2022-11-26 00:14:32,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:32,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687230904] [2022-11-26 00:14:32,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:32,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:32,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:32,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:32,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687230904] [2022-11-26 00:14:32,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687230904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:32,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:32,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:32,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823202084] [2022-11-26 00:14:32,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:32,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:14:32,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:32,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:14:32,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:14:32,503 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-26 00:14:32,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:32,534 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-26 00:14:32,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:32,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 7 [2022-11-26 00:14:32,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:32,535 INFO L225 Difference]: With dead ends: 12 [2022-11-26 00:14:32,535 INFO L226 Difference]: Without dead ends: 9 [2022-11-26 00:14:32,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:14:32,540 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:32,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:14:32,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-26 00:14:32,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-26 00:14:32,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2022-11-26 00:14:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-11-26 00:14:32,549 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2022-11-26 00:14:32,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:32,549 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-11-26 00:14:32,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-26 00:14:32,553 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-11-26 00:14:32,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:14:32,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:32,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:32,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:14:32,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-26 00:14:32,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:32,556 INFO L85 PathProgramCache]: Analyzing trace with hash 122177234, now seen corresponding path program 1 times [2022-11-26 00:14:32,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:32,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764601250] [2022-11-26 00:14:32,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:32,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:14:32,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:14:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:14:32,662 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:14:32,662 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:14:32,663 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-26 00:14:32,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-26 00:14:32,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:14:32,669 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 00:14:32,674 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:14:32,674 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:14:32,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:14:32 BasicIcfg [2022-11-26 00:14:32,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:14:32,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:14:32,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:14:32,705 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:14:32,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:14:27" (3/4) ... [2022-11-26 00:14:32,707 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:14:32,753 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:14:32,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:14:32,755 INFO L158 Benchmark]: Toolchain (without parser) took 5889.93ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 118.1MB in the beginning and 81.2MB in the end (delta: 36.9MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. [2022-11-26 00:14:32,755 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:14:32,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 592.93ms. Allocated memory is still 148.9MB. Free memory was 117.5MB in the beginning and 98.5MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:14:32,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.49ms. Allocated memory is still 148.9MB. Free memory was 98.5MB in the beginning and 96.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:14:32,756 INFO L158 Benchmark]: Boogie Preprocessor took 22.43ms. Allocated memory is still 148.9MB. Free memory was 96.8MB in the beginning and 95.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:14:32,756 INFO L158 Benchmark]: RCFGBuilder took 408.23ms. Allocated memory is still 148.9MB. Free memory was 95.3MB in the beginning and 82.5MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:14:32,757 INFO L158 Benchmark]: TraceAbstraction took 4760.63ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 81.7MB in the beginning and 83.3MB in the end (delta: -1.6MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2022-11-26 00:14:32,759 INFO L158 Benchmark]: Witness Printer took 50.71ms. Allocated memory is still 197.1MB. Free memory was 83.3MB in the beginning and 81.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:14:32,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 592.93ms. Allocated memory is still 148.9MB. Free memory was 117.5MB in the beginning and 98.5MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.49ms. Allocated memory is still 148.9MB. Free memory was 98.5MB in the beginning and 96.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.43ms. Allocated memory is still 148.9MB. Free memory was 96.8MB in the beginning and 95.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.23ms. Allocated memory is still 148.9MB. Free memory was 95.3MB in the beginning and 82.5MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4760.63ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 81.7MB in the beginning and 83.3MB in the end (delta: -1.6MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * Witness Printer took 50.71ms. Allocated memory is still 197.1MB. Free memory was 83.3MB in the beginning and 81.2MB 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, 1213 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 701, independent: 570, independent conditional: 0, independent unconditional: 570, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 371, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 371, independent: 313, independent conditional: 0, independent unconditional: 313, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 206, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 173, dependent conditional: 0, dependent unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 701, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 371, unknown conditional: 0, unknown unconditional: 371] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [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={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, 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: 4.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-11-26 00:14:32,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7b17d2-80e4-438f-8206-58e476f6ce24/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE