./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta --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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- 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-dbf71c6-m [2022-10-17 17:16:19,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:16:19,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:16:19,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:16:19,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:16:19,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:16:19,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:16:19,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:16:19,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:16:19,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:16:19,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:16:20,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:16:20,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:16:20,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:16:20,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:16:20,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:16:20,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:16:20,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:16:20,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:16:20,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:16:20,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:16:20,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:16:20,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:16:20,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:16:20,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:16:20,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:16:20,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:16:20,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:16:20,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:16:20,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:16:20,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:16:20,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:16:20,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:16:20,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:16:20,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:16:20,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:16:20,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:16:20,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:16:20,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:16:20,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:16:20,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:16:20,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:16:20,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:16:20,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:16:20,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:16:20,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:16:20,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:16:20,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:16:20,093 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:16:20,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:16:20,093 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:16:20,093 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:16:20,094 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:16:20,094 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:16:20,094 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:16:20,094 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:16:20,095 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:16:20,095 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:16:20,095 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:16:20,095 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:16:20,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:16:20,096 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:16:20,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:16:20,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:16:20,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:16:20,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:16:20,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:16:20,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:16:20,098 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:16:20,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:16:20,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:16:20,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:16:20,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:16:20,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:16:20,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:16:20,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:16:20,100 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:16:20,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:16:20,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:16:20,101 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:16:20,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:16:20,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:16:20,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:16:20,102 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_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2022-10-17 17:16:20,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:16:20,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:16:20,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:16:20,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:16:20,423 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:16:20,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-10-17 17:16:20,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/data/85eae5653/2e9c9862542f4470bc7eb8515a81d40e/FLAG066204e12 [2022-10-17 17:16:21,149 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:16:21,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-10-17 17:16:21,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/data/85eae5653/2e9c9862542f4470bc7eb8515a81d40e/FLAG066204e12 [2022-10-17 17:16:21,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/data/85eae5653/2e9c9862542f4470bc7eb8515a81d40e [2022-10-17 17:16:21,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:16:21,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:16:21,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:16:21,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:16:21,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:16:21,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:16:21" (1/1) ... [2022-10-17 17:16:21,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533b817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:21, skipping insertion in model container [2022-10-17 17:16:21,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:16:21" (1/1) ... [2022-10-17 17:16:21,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:16:21,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:16:21,772 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-10-17 17:16:22,479 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_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-10-17 17:16:22,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:16:22,529 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:16:22,542 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-10-17 17:16:22,585 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_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-10-17 17:16:22,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:16:22,753 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:16:22,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22 WrapperNode [2022-10-17 17:16:22,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:16:22,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:16:22,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:16:22,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:16:22,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,825 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 115 [2022-10-17 17:16:22,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:16:22,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:16:22,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:16:22,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:16:22,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,904 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:16:22,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:16:22,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:16:22,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:16:22,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (1/1) ... [2022-10-17 17:16:22,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:16:22,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:16:22,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:16:22,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d9ed72-0975-4575-aa7f-e5cdbedaaa71/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:16:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 17:16:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:16:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 17:16:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:16:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:16:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:16:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:16:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:16:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-10-17 17:16:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-10-17 17:16:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:16:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:16:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:16:23,014 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 17:16:23,398 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:16:23,400 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:16:23,733 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:16:23,758 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:16:23,758 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 17:16:23,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:16:23 BoogieIcfgContainer [2022-10-17 17:16:23,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:16:23,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:16:23,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:16:23,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:16:23,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:16:21" (1/3) ... [2022-10-17 17:16:23,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3745ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:16:23, skipping insertion in model container [2022-10-17 17:16:23,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:16:22" (2/3) ... [2022-10-17 17:16:23,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3745ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:16:23, skipping insertion in model container [2022-10-17 17:16:23,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:16:23" (3/3) ... [2022-10-17 17:16:23,774 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2022-10-17 17:16:23,785 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 17:16:23,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:16:23,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-17 17:16:23,823 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 17:16:23,906 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-17 17:16:23,952 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-10-17 17:16:23,970 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 163 transitions, 342 flow [2022-10-17 17:16:23,974 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 163 transitions, 342 flow [2022-10-17 17:16:23,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 163 transitions, 342 flow [2022-10-17 17:16:24,073 INFO L130 PetriNetUnfolder]: 8/208 cut-off events. [2022-10-17 17:16:24,073 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-10-17 17:16:24,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 208 events. 8/208 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 342 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2022-10-17 17:16:24,082 INFO L118 LiptonReduction]: Number of co-enabled transitions 2420