./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/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_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 --- 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 00:24:28,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:24:28,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:24:28,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:24:28,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:24:28,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:24:28,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:24:28,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:24:28,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:24:28,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:24:28,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:24:28,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:24:28,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:24:28,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:24:28,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:24:28,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:24:28,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:24:28,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:24:28,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:24:28,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:24:28,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:24:28,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:24:28,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:24:28,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:24:28,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:24:28,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:24:28,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:24:28,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:24:28,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:24:28,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:24:28,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:24:28,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:24:28,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:24:28,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:24:28,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:24:28,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:24:28,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:24:28,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:24:28,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:24:28,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:24:28,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:24:28,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:24:28,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:24:28,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:24:28,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:24:28,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:24:28,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:24:28,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:24:28,866 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:24:28,866 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:24:28,869 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:24:28,869 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:24:28,870 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:24:28,870 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:24:28,870 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:24:28,871 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:24:28,871 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:24:28,871 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:24:28,871 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:24:28,872 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:24:28,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:24:28,872 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:24:28,873 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:24:28,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:24:28,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:24:28,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:24:28,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:24:28,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:24:28,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:24:28,874 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:24:28,874 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:24:28,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:24:28,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:24:28,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:24:28,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:24:28,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:24:28,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:28,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:24:28,876 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:24:28,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:24:28,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:24:28,877 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:24:28,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:24:28,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:24:28,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:24:28,878 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_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 [2022-11-26 00:24:29,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:24:29,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:24:29,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:24:29,190 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:24:29,190 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:24:29,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2022-11-26 00:24:32,234 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:24:32,519 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:24:32,520 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2022-11-26 00:24:32,532 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/data/ae166a5cd/132e04c1abc845ac8bdcd6314e5cd2e3/FLAG16484d3c3 [2022-11-26 00:24:32,547 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/data/ae166a5cd/132e04c1abc845ac8bdcd6314e5cd2e3 [2022-11-26 00:24:32,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:24:32,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:24:32,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:32,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:24:32,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:24:32,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:32" (1/1) ... [2022-11-26 00:24:32,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47eafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:32, skipping insertion in model container [2022-11-26 00:24:32,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:32" (1/1) ... [2022-11-26 00:24:32,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:24:32,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:24:32,757 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:24:32,966 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_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-11-26 00:24:32,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:32,994 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:24:33,013 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:24:33,053 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_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-11-26 00:24:33,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:33,117 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:24:33,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33 WrapperNode [2022-11-26 00:24:33,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:33,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:33,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:24:33,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:24:33,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,160 INFO L138 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2022-11-26 00:24:33,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:33,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:24:33,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:24:33,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:24:33,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,187 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:24:33,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:24:33,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:24:33,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:24:33,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (1/1) ... [2022-11-26 00:24:33,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:33,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:33,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:24:33,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:24:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:24:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:24:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:24:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:24:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:24:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:24:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:24:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-11-26 00:24:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-11-26 00:24:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:24:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:24:33,277 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 00:24:33,406 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:24:33,408 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:24:33,670 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:24:33,689 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:24:33,689 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:24:33,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:33 BoogieIcfgContainer [2022-11-26 00:24:33,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:24:33,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:24:33,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:24:33,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:24:33,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:24:32" (1/3) ... [2022-11-26 00:24:33,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564e09e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:33, skipping insertion in model container [2022-11-26 00:24:33,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:33" (2/3) ... [2022-11-26 00:24:33,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564e09e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:33, skipping insertion in model container [2022-11-26 00:24:33,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:33" (3/3) ... [2022-11-26 00:24:33,706 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-11-26 00:24:33,715 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:24:33,727 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:24:33,727 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 00:24:33,728 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:24:33,828 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-26 00:24:33,888 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:24:33,919 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 87 transitions, 182 flow [2022-11-26 00:24:33,922 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 87 transitions, 182 flow [2022-11-26 00:24:33,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 87 transitions, 182 flow [2022-11-26 00:24:34,047 INFO L130 PetriNetUnfolder]: 3/86 cut-off events. [2022-11-26 00:24:34,047 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-26 00:24:34,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 86 events. 3/86 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-11-26 00:24:34,057 INFO L119 LiptonReduction]: Number of co-enabled transitions 660 [2022-11-26 00:24:38,300 INFO L134 LiptonReduction]: Checked pairs total: 1272 [2022-11-26 00:24:38,300 INFO L136 LiptonReduction]: Total number of compositions: 78 [2022-11-26 00:24:38,309 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 17 transitions, 42 flow [2022-11-26 00:24:38,322 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 35 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 34 states have internal predecessors, (67), 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 00:24:38,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:24:38,347 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;@3f2ae379, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:24:38,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-26 00:24:38,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 34 states have internal predecessors, (67), 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 00:24:38,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:24:38,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:38,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:24:38,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-26 00:24:38,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:38,361 INFO L85 PathProgramCache]: Analyzing trace with hash 9527875, now seen corresponding path program 1 times [2022-11-26 00:24:38,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:38,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575944670] [2022-11-26 00:24:38,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:38,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:38,554 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 00:24:38,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:38,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575944670] [2022-11-26 00:24:38,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575944670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:38,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:38,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:24:38,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607234224] [2022-11-26 00:24:38,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:38,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:24:38,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:38,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:24:38,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:24:38,597 INFO L87 Difference]: Start difference. First operand has 35 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 34 states have internal predecessors, (67), 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 2 states, 1 states have (on average 4.0) 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 00:24:38,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:38,634 INFO L93 Difference]: Finished difference Result 30 states and 52 transitions. [2022-11-26 00:24:38,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:24:38,636 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) 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 00:24:38,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:38,645 INFO L225 Difference]: With dead ends: 30 [2022-11-26 00:24:38,645 INFO L226 Difference]: Without dead ends: 30 [2022-11-26 00:24:38,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:24:38,651 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:38,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:38,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-26 00:24:38,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-26 00:24:38,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 27 states have (on average 1.9259259259259258) internal successors, (52), 29 states have internal predecessors, (52), 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 00:24:38,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 52 transitions. [2022-11-26 00:24:38,697 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 52 transitions. Word has length 4 [2022-11-26 00:24:38,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:38,698 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 52 transitions. [2022-11-26 00:24:38,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) 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 00:24:38,699 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2022-11-26 00:24:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:24:38,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:38,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:24:38,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:24:38,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-26 00:24:38,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:38,701 INFO L85 PathProgramCache]: Analyzing trace with hash 9528261, now seen corresponding path program 1 times [2022-11-26 00:24:38,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:38,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284673382] [2022-11-26 00:24:38,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:38,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:38,845 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 00:24:38,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:38,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284673382] [2022-11-26 00:24:38,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284673382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:38,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:38,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:38,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129425702] [2022-11-26 00:24:38,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:38,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:38,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:38,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:38,852 INFO L87 Difference]: Start difference. First operand 30 states and 52 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 00:24:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:38,892 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2022-11-26 00:24:38,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:38,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 00:24:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:38,896 INFO L225 Difference]: With dead ends: 42 [2022-11-26 00:24:38,896 INFO L226 Difference]: Without dead ends: 40 [2022-11-26 00:24:38,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 00:24:38,898 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:38,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:38,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-26 00:24:38,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2022-11-26 00:24:38,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.9310344827586208) internal successors, (56), 31 states have internal predecessors, (56), 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 00:24:38,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 56 transitions. [2022-11-26 00:24:38,914 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 56 transitions. Word has length 4 [2022-11-26 00:24:38,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:38,915 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 56 transitions. [2022-11-26 00:24:38,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 00:24:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 56 transitions. [2022-11-26 00:24:38,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:24:38,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:38,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:24:38,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:24:38,920 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-26 00:24:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:38,920 INFO L85 PathProgramCache]: Analyzing trace with hash 566333175, now seen corresponding path program 1 times [2022-11-26 00:24:38,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:38,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186633698] [2022-11-26 00:24:38,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:38,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:39,001 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 00:24:39,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:39,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186633698] [2022-11-26 00:24:39,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186633698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:39,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:39,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:39,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974334503] [2022-11-26 00:24:39,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:39,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:39,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:39,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:39,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:39,004 INFO L87 Difference]: Start difference. First operand 32 states and 56 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 00:24:39,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:39,036 INFO L93 Difference]: Finished difference Result 31 states and 53 transitions. [2022-11-26 00:24:39,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:39,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-26 00:24:39,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:39,039 INFO L225 Difference]: With dead ends: 31 [2022-11-26 00:24:39,040 INFO L226 Difference]: Without dead ends: 23 [2022-11-26 00:24:39,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 00:24:39,042 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:39,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:39,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-26 00:24:39,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-26 00:24:39,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 00:24:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 33 transitions. [2022-11-26 00:24:39,050 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 33 transitions. Word has length 6 [2022-11-26 00:24:39,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:39,052 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 33 transitions. [2022-11-26 00:24:39,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 00:24:39,053 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2022-11-26 00:24:39,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:24:39,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:39,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:39,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:24:39,054 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-26 00:24:39,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash 376464522, now seen corresponding path program 1 times [2022-11-26 00:24:39,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:39,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696460994] [2022-11-26 00:24:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:39,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:24:39,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:24:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:24:39,144 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:24:39,144 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:24:39,147 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2022-11-26 00:24:39,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2022-11-26 00:24:39,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-11-26 00:24:39,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2022-11-26 00:24:39,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2022-11-26 00:24:39,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:24:39,157 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-26 00:24:39,163 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:24:39,163 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:24:39,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:24:39 BasicIcfg [2022-11-26 00:24:39,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:24:39,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:24:39,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:24:39,193 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:24:39,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:33" (3/4) ... [2022-11-26 00:24:39,196 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:24:39,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:24:39,196 INFO L158 Benchmark]: Toolchain (without parser) took 6645.74ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 101.8MB in the beginning and 123.5MB in the end (delta: -21.7MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2022-11-26 00:24:39,197 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 107.0MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:24:39,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.18ms. Allocated memory is still 146.8MB. Free memory was 101.3MB in the beginning and 81.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:24:39,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.94ms. Allocated memory is still 146.8MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:24:39,198 INFO L158 Benchmark]: Boogie Preprocessor took 28.73ms. Allocated memory is still 146.8MB. Free memory was 79.4MB in the beginning and 77.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:24:39,198 INFO L158 Benchmark]: RCFGBuilder took 500.51ms. Allocated memory is still 146.8MB. Free memory was 77.8MB in the beginning and 63.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:24:39,198 INFO L158 Benchmark]: TraceAbstraction took 5497.83ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 63.1MB in the beginning and 124.6MB in the end (delta: -61.5MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2022-11-26 00:24:39,199 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 207.6MB. Free memory was 124.6MB in the beginning and 123.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:24:39,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 107.0MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.18ms. Allocated memory is still 146.8MB. Free memory was 101.3MB in the beginning and 81.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.94ms. Allocated memory is still 146.8MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.73ms. Allocated memory is still 146.8MB. Free memory was 79.4MB in the beginning and 77.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 500.51ms. Allocated memory is still 146.8MB. Free memory was 77.8MB in the beginning and 63.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5497.83ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 63.1MB in the beginning and 124.6MB in the end (delta: -61.5MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 3.52ms. Allocated memory is still 207.6MB. Free memory was 124.6MB in the beginning and 123.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 88 PlacesBefore, 19 PlacesAfterwards, 87 TransitionsBefore, 17 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 78 TotalNumberOfCompositions, 1272 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 943, independent: 859, independent conditional: 0, independent unconditional: 859, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 500, independent: 478, independent conditional: 0, independent unconditional: 478, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 500, independent: 477, independent conditional: 0, independent unconditional: 477, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 943, independent: 381, independent conditional: 0, independent unconditional: 381, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 500, unknown conditional: 0, unknown unconditional: 500] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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 - DataRaceFoundResult [Line: 714]: Data race detected Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; [L698] 0 pthread_cond_t cond; [L699] 0 int x; [L709] 0 pthread_t t; [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L713] 0 int i = 0; VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x = i=119] [L704] 1 x == 42 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x = i=119] Now there is a data race on ~x~0 between C: x == 42 [704] and C: x = i [714] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: 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. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 00:24:39,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad4afd5-1b26-43bd-a10c-0d84509b7e2a/bin/utaipan-ByfvJB40ur/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