./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2b-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/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_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2b-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/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_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/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 c6b79a0708426757fcf437de19fb59e33e03e479ed1138497675a4f18cf715c6 --- 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 00:30:12,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:30:12,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:30:12,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:30:12,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:30:12,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:30:12,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:30:12,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:30:12,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:30:12,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:30:12,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:30:12,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:30:12,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:30:12,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:30:12,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:30:12,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:30:12,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:30:12,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:30:12,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:30:12,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:30:12,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:30:12,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:30:12,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:30:12,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:30:12,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:30:12,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:30:12,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:30:12,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:30:12,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:30:12,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:30:12,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:30:12,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:30:12,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:30:12,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:30:12,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:30:12,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:30:12,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:30:12,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:30:12,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:30:12,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:30:12,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:30:12,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:30:12,811 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:30:12,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:30:12,812 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:30:12,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:30:12,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:30:12,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:30:12,814 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:30:12,814 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:30:12,814 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:30:12,815 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:30:12,816 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:30:12,816 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:30:12,816 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:30:12,816 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:30:12,817 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:30:12,817 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:30:12,817 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:30:12,818 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:30:12,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:30:12,819 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:30:12,819 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:30:12,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:30:12,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:30:12,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:30:12,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:30:12,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:30:12,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:30:12,820 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:30:12,821 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:30:12,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:30:12,821 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:30:12,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:30:12,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:30:12,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:30:12,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:30:12,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:30:12,823 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:30:12,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:30:12,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:30:12,824 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:30:12,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:30:12,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:30:12,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:30:12,825 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_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b79a0708426757fcf437de19fb59e33e03e479ed1138497675a4f18cf715c6 [2022-11-26 00:30:13,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:30:13,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:30:13,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:30:13,196 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:30:13,198 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:30:13,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-races/race-2_2b-container_of.i [2022-11-26 00:30:16,300 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:30:16,665 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:30:16,667 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/sv-benchmarks/c/ldv-races/race-2_2b-container_of.i [2022-11-26 00:30:16,691 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur/data/79ffdbb9e/58bd384c5b2c4546a8a65d097bb89b6e/FLAG6b806f816 [2022-11-26 00:30:16,705 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur/data/79ffdbb9e/58bd384c5b2c4546a8a65d097bb89b6e [2022-11-26 00:30:16,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:30:16,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:30:16,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:30:16,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:30:16,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:30:16,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:30:16" (1/1) ... [2022-11-26 00:30:16,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f48c5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:16, skipping insertion in model container [2022-11-26 00:30:16,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:30:16" (1/1) ... [2022-11-26 00:30:16,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:30:16,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:30:17,512 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_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/sv-benchmarks/c/ldv-races/race-2_2b-container_of.i[76077,76090] [2022-11-26 00:30:17,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:30:17,593 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:30:17,673 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_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/sv-benchmarks/c/ldv-races/race-2_2b-container_of.i[76077,76090] [2022-11-26 00:30:17,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:30:17,824 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:30:17,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17 WrapperNode [2022-11-26 00:30:17,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:30:17,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:30:17,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:30:17,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:30:17,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:17,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:17,890 INFO L138 Inliner]: procedures = 481, calls = 41, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 173 [2022-11-26 00:30:17,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:30:17,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:30:17,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:30:17,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:30:17,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:17,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:17,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:17,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:17,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:17,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:17,976 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:17,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:17,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:30:17,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:30:17,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:30:17,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:30:17,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (1/1) ... [2022-11-26 00:30:18,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:30:18,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:30:18,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:30:18,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:30:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:30:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:30:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:30:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:30:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:30:18,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:30:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-26 00:30:18,082 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-26 00:30:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:30:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:30:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:30:18,084 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 00:30:18,427 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:30:18,429 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:30:18,959 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:30:18,967 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:30:18,972 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:30:18,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:30:18 BoogieIcfgContainer [2022-11-26 00:30:18,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:30:18,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:30:18,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:30:18,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:30:18,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:30:16" (1/3) ... [2022-11-26 00:30:18,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b9f972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:30:18, skipping insertion in model container [2022-11-26 00:30:18,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:30:17" (2/3) ... [2022-11-26 00:30:18,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b9f972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:30:18, skipping insertion in model container [2022-11-26 00:30:18,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:30:18" (3/3) ... [2022-11-26 00:30:18,992 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2b-container_of.i [2022-11-26 00:30:19,005 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:30:19,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:30:19,017 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-26 00:30:19,017 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:30:19,155 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-26 00:30:19,202 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:30:19,219 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 273 places, 273 transitions, 562 flow [2022-11-26 00:30:19,221 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 273 places, 273 transitions, 562 flow [2022-11-26 00:30:19,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 273 transitions, 562 flow [2022-11-26 00:30:19,401 INFO L130 PetriNetUnfolder]: 8/350 cut-off events. [2022-11-26 00:30:19,401 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-26 00:30:19,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 350 events. 8/350 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 787 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 184. Up to 4 conditions per place. [2022-11-26 00:30:19,420 INFO L119 LiptonReduction]: Number of co-enabled transitions 14124 [2022-11-26 00:31:17,062 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 121 DAG size of output: 119 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:31:33,426 WARN L233 SmtUtils]: Spent 9.40s on a formula simplification. DAG size of input: 187 DAG size of output: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:31:51,277 WARN L233 SmtUtils]: Spent 13.17s on a formula simplification. DAG size of input: 187 DAG size of output: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:31:57,439 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:31:57,739 INFO L134 LiptonReduction]: Checked pairs total: 186883 [2022-11-26 00:31:57,739 INFO L136 LiptonReduction]: Total number of compositions: 235 [2022-11-26 00:31:57,748 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 102 transitions, 220 flow [2022-11-26 00:31:58,360 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18192 states, 18067 states have (on average 2.912104942713234) internal successors, (52613), 18191 states have internal predecessors, (52613), 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 00:31:58,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:31:58,388 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;@10a42474, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:31:58,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-26 00:31:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 18192 states, 18067 states have (on average 2.912104942713234) internal successors, (52613), 18191 states have internal predecessors, (52613), 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 00:31:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:31:58,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:58,443 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:31:58,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:31:58,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:58,459 INFO L85 PathProgramCache]: Analyzing trace with hash 832, now seen corresponding path program 1 times [2022-11-26 00:31:58,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:58,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972644938] [2022-11-26 00:31:58,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:58,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:58,839 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 00:31:58,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:58,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972644938] [2022-11-26 00:31:58,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972644938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:58,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:58,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:31:58,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861052499] [2022-11-26 00:31:58,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:58,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:31:58,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:58,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:31:58,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:31:58,905 INFO L87 Difference]: Start difference. First operand has 18192 states, 18067 states have (on average 2.912104942713234) internal successors, (52613), 18191 states have internal predecessors, (52613), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 00:31:59,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:59,473 INFO L93 Difference]: Finished difference Result 18188 states and 52124 transitions. [2022-11-26 00:31:59,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:31:59,477 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-26 00:31:59,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:59,718 INFO L225 Difference]: With dead ends: 18188 [2022-11-26 00:31:59,718 INFO L226 Difference]: Without dead ends: 18186 [2022-11-26 00:31:59,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 00:31:59,722 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:59,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:31:59,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18186 states. [2022-11-26 00:32:00,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18186 to 18186. [2022-11-26 00:32:00,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18186 states, 18067 states have (on average 2.884817623291083) internal successors, (52120), 18185 states have internal predecessors, (52120), 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 00:32:00,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18186 states to 18186 states and 52120 transitions. [2022-11-26 00:32:00,980 INFO L78 Accepts]: Start accepts. Automaton has 18186 states and 52120 transitions. Word has length 1 [2022-11-26 00:32:00,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:32:00,981 INFO L495 AbstractCegarLoop]: Abstraction has 18186 states and 52120 transitions. [2022-11-26 00:32:00,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 00:32:00,982 INFO L276 IsEmpty]: Start isEmpty. Operand 18186 states and 52120 transitions. [2022-11-26 00:32:00,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:32:00,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:32:00,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:32:00,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:32:00,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:32:00,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:32:00,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1170957996, now seen corresponding path program 1 times [2022-11-26 00:32:00,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:32:00,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825410611] [2022-11-26 00:32:00,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:32:00,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:32:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:32:01,743 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 00:32:01,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:32:01,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825410611] [2022-11-26 00:32:01,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825410611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:32:01,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:32:01,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:32:01,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881465135] [2022-11-26 00:32:01,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:32:01,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:32:01,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:32:01,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:32:01,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:32:01,753 INFO L87 Difference]: Start difference. First operand 18186 states and 52120 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:32:03,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:32:03,018 INFO L93 Difference]: Finished difference Result 20581 states and 59087 transitions. [2022-11-26 00:32:03,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:32:03,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 00:32:03,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:32:03,193 INFO L225 Difference]: With dead ends: 20581 [2022-11-26 00:32:03,193 INFO L226 Difference]: Without dead ends: 20581 [2022-11-26 00:32:03,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:32:03,196 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 73 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:32:03,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 86 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:32:03,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20581 states. [2022-11-26 00:32:03,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20581 to 20101. [2022-11-26 00:32:04,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20101 states, 19983 states have (on average 2.8870039533603564) internal successors, (57691), 20100 states have internal predecessors, (57691), 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 00:32:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20101 states to 20101 states and 57691 transitions. [2022-11-26 00:32:04,174 INFO L78 Accepts]: Start accepts. Automaton has 20101 states and 57691 transitions. Word has length 7 [2022-11-26 00:32:04,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:32:04,175 INFO L495 AbstractCegarLoop]: Abstraction has 20101 states and 57691 transitions. [2022-11-26 00:32:04,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:32:04,175 INFO L276 IsEmpty]: Start isEmpty. Operand 20101 states and 57691 transitions. [2022-11-26 00:32:04,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:32:04,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:32:04,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:32:04,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:32:04,178 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:32:04,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:32:04,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2027138570, now seen corresponding path program 1 times [2022-11-26 00:32:04,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:32:04,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668000870] [2022-11-26 00:32:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:32:04,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:32:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:32:04,418 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 00:32:04,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:32:04,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668000870] [2022-11-26 00:32:04,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668000870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:32:04,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:32:04,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:32:04,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304166576] [2022-11-26 00:32:04,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:32:04,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:32:04,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:32:04,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:32:04,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:32:04,422 INFO L87 Difference]: Start difference. First operand 20101 states and 57691 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:32:04,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:32:04,906 INFO L93 Difference]: Finished difference Result 20095 states and 57685 transitions. [2022-11-26 00:32:04,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:32:04,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 00:32:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:32:05,005 INFO L225 Difference]: With dead ends: 20095 [2022-11-26 00:32:05,006 INFO L226 Difference]: Without dead ends: 20095 [2022-11-26 00:32:05,006 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 00:32:05,007 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:32:05,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:32:05,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20095 states. [2022-11-26 00:32:05,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20095 to 20095. [2022-11-26 00:32:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20095 states, 19978 states have (on average 2.887426168785664) internal successors, (57685), 20094 states have internal predecessors, (57685), 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 00:32:05,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20095 states to 20095 states and 57685 transitions. [2022-11-26 00:32:05,880 INFO L78 Accepts]: Start accepts. Automaton has 20095 states and 57685 transitions. Word has length 7 [2022-11-26 00:32:05,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:32:05,882 INFO L495 AbstractCegarLoop]: Abstraction has 20095 states and 57685 transitions. [2022-11-26 00:32:05,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:32:05,882 INFO L276 IsEmpty]: Start isEmpty. Operand 20095 states and 57685 transitions. [2022-11-26 00:32:05,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:32:05,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:32:05,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:32:05,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:32:05,886 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:32:05,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:32:05,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1873001551, now seen corresponding path program 1 times [2022-11-26 00:32:05,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:32:05,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238176952] [2022-11-26 00:32:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:32:05,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:32:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:32:06,484 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 00:32:06,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:32:06,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238176952] [2022-11-26 00:32:06,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238176952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:32:06,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:32:06,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:32:06,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505811744] [2022-11-26 00:32:06,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:32:06,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:32:06,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:32:06,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:32:06,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:32:06,487 INFO L87 Difference]: Start difference. First operand 20095 states and 57685 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:32:07,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:32:07,898 INFO L93 Difference]: Finished difference Result 24199 states and 69688 transitions. [2022-11-26 00:32:07,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:32:07,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:32:07,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:32:08,012 INFO L225 Difference]: With dead ends: 24199 [2022-11-26 00:32:08,013 INFO L226 Difference]: Without dead ends: 24199 [2022-11-26 00:32:08,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:32:08,014 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 111 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:32:08,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 82 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:32:08,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24199 states. [2022-11-26 00:32:08,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24199 to 23307. [2022-11-26 00:32:08,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23307 states, 23190 states have (on average 2.892496765847348) internal successors, (67077), 23306 states have internal predecessors, (67077), 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 00:32:08,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23307 states to 23307 states and 67077 transitions. [2022-11-26 00:32:08,711 INFO L78 Accepts]: Start accepts. Automaton has 23307 states and 67077 transitions. Word has length 8 [2022-11-26 00:32:08,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:32:08,711 INFO L495 AbstractCegarLoop]: Abstraction has 23307 states and 67077 transitions. [2022-11-26 00:32:08,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:32:08,712 INFO L276 IsEmpty]: Start isEmpty. Operand 23307 states and 67077 transitions. [2022-11-26 00:32:08,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:32:08,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:32:08,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:32:08,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:32:08,715 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:32:08,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:32:08,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1411287670, now seen corresponding path program 1 times [2022-11-26 00:32:08,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:32:08,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004620842] [2022-11-26 00:32:08,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:32:08,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:32:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:32:09,167 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 00:32:09,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:32:09,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004620842] [2022-11-26 00:32:09,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004620842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:32:09,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:32:09,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:32:09,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43788114] [2022-11-26 00:32:09,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:32:09,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:32:09,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:32:09,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:32:09,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:32:09,172 INFO L87 Difference]: Start difference. First operand 23307 states and 67077 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 00:32:11,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:32:11,198 INFO L93 Difference]: Finished difference Result 27596 states and 79582 transitions. [2022-11-26 00:32:11,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:32:11,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-11-26 00:32:11,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:32:11,319 INFO L225 Difference]: With dead ends: 27596 [2022-11-26 00:32:11,319 INFO L226 Difference]: Without dead ends: 27596 [2022-11-26 00:32:11,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:32:11,321 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 122 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:32:11,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 94 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:32:11,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27596 states. [2022-11-26 00:32:12,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27596 to 26552. [2022-11-26 00:32:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26552 states, 26435 states have (on average 2.8949877056932096) internal successors, (76529), 26551 states have internal predecessors, (76529), 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 00:32:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26552 states to 26552 states and 76529 transitions. [2022-11-26 00:32:12,340 INFO L78 Accepts]: Start accepts. Automaton has 26552 states and 76529 transitions. Word has length 10 [2022-11-26 00:32:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:32:12,340 INFO L495 AbstractCegarLoop]: Abstraction has 26552 states and 76529 transitions. [2022-11-26 00:32:12,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 00:32:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 26552 states and 76529 transitions. [2022-11-26 00:32:12,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:32:12,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:32:12,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:32:12,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:32:12,349 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:32:12,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:32:12,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2084821965, now seen corresponding path program 1 times [2022-11-26 00:32:12,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:32:12,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445436340] [2022-11-26 00:32:12,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:32:12,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:32:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:32:12,988 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 00:32:12,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:32:12,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445436340] [2022-11-26 00:32:12,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445436340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:32:12,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:32:12,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:32:12,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177281474] [2022-11-26 00:32:12,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:32:12,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:32:12,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:32:12,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:32:12,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:32:12,991 INFO L87 Difference]: Start difference. First operand 26552 states and 76529 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 00:32:14,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:32:14,343 INFO L93 Difference]: Finished difference Result 29325 states and 83753 transitions. [2022-11-26 00:32:14,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:32:14,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-11-26 00:32:14,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:32:14,450 INFO L225 Difference]: With dead ends: 29325 [2022-11-26 00:32:14,450 INFO L226 Difference]: Without dead ends: 29325 [2022-11-26 00:32:14,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:32:14,451 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 86 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:32:14,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 87 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:32:14,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29325 states. [2022-11-26 00:32:15,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29325 to 28463. [2022-11-26 00:32:15,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28463 states, 28346 states have (on average 2.8958583221618572) internal successors, (82086), 28462 states have internal predecessors, (82086), 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 00:32:15,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28463 states to 28463 states and 82086 transitions. [2022-11-26 00:32:15,358 INFO L78 Accepts]: Start accepts. Automaton has 28463 states and 82086 transitions. Word has length 11 [2022-11-26 00:32:15,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:32:15,360 INFO L495 AbstractCegarLoop]: Abstraction has 28463 states and 82086 transitions. [2022-11-26 00:32:15,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 00:32:15,361 INFO L276 IsEmpty]: Start isEmpty. Operand 28463 states and 82086 transitions. [2022-11-26 00:32:15,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:32:15,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:32:15,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:32:15,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:32:15,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-26 00:32:15,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:32:15,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1917785214, now seen corresponding path program 1 times [2022-11-26 00:32:15,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:32:15,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101892693] [2022-11-26 00:32:15,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:32:15,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:32:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:32:15,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:32:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:32:15,517 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:32:15,517 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:32:15,518 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2022-11-26 00:32:15,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2022-11-26 00:32:15,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2022-11-26 00:32:15,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2022-11-26 00:32:15,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2022-11-26 00:32:15,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2022-11-26 00:32:15,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2022-11-26 00:32:15,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2022-11-26 00:32:15,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2022-11-26 00:32:15,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2022-11-26 00:32:15,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2022-11-26 00:32:15,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 21 remaining) [2022-11-26 00:32:15,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 21 remaining) [2022-11-26 00:32:15,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2022-11-26 00:32:15,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2022-11-26 00:32:15,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2022-11-26 00:32:15,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2022-11-26 00:32:15,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2022-11-26 00:32:15,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2022-11-26 00:32:15,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2022-11-26 00:32:15,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2022-11-26 00:32:15,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:32:15,531 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:32:15,538 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:32:15,538 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:32:15,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:32:15 BasicIcfg [2022-11-26 00:32:15,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:32:15,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:32:15,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:32:15,592 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:32:15,592 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:30:18" (3/4) ... [2022-11-26 00:32:15,595 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:32:15,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:32:15,596 INFO L158 Benchmark]: Toolchain (without parser) took 118886.99ms. Allocated memory was 151.0MB in the beginning and 5.7GB in the end (delta: 5.6GB). Free memory was 113.8MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 771.3MB. Max. memory is 16.1GB. [2022-11-26 00:32:15,597 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:32:15,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1113.80ms. Allocated memory is still 151.0MB. Free memory was 113.8MB in the beginning and 76.5MB in the end (delta: 37.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-26 00:32:15,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.53ms. Allocated memory is still 151.0MB. Free memory was 76.5MB in the beginning and 73.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:32:15,598 INFO L158 Benchmark]: Boogie Preprocessor took 103.05ms. Allocated memory is still 151.0MB. Free memory was 73.0MB in the beginning and 68.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:32:15,598 INFO L158 Benchmark]: RCFGBuilder took 982.35ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 68.8MB in the beginning and 135.6MB in the end (delta: -66.8MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2022-11-26 00:32:15,599 INFO L158 Benchmark]: TraceAbstraction took 116608.88ms. Allocated memory was 182.5MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 134.5MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 760.4MB. Max. memory is 16.1GB. [2022-11-26 00:32:15,599 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 5.7GB. Free memory is still 4.9GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:32:15,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1113.80ms. Allocated memory is still 151.0MB. Free memory was 113.8MB in the beginning and 76.5MB in the end (delta: 37.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.53ms. Allocated memory is still 151.0MB. Free memory was 76.5MB in the beginning and 73.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.05ms. Allocated memory is still 151.0MB. Free memory was 73.0MB in the beginning and 68.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 982.35ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 68.8MB in the beginning and 135.6MB in the end (delta: -66.8MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * TraceAbstraction took 116608.88ms. Allocated memory was 182.5MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 134.5MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 760.4MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 5.7GB. Free memory is still 4.9GB. 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: 98.5s, 273 PlacesBefore, 105 PlacesAfterwards, 273 TransitionsBefore, 102 TransitionsAfterwards, 14124 CoEnabledTransitionPairs, 20 FixpointIterations, 120 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 27 ConcurrentYvCompositions, 3 ChoiceCompositions, 235 TotalNumberOfCompositions, 186883 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18319, independent: 15005, independent conditional: 0, independent unconditional: 15005, dependent: 3304, dependent conditional: 0, dependent unconditional: 3304, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7309, independent: 7067, independent conditional: 0, independent unconditional: 7067, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7309, independent: 6453, independent conditional: 0, independent unconditional: 6453, dependent: 856, dependent conditional: 0, dependent unconditional: 856, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 856, independent: 614, independent conditional: 0, independent unconditional: 614, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11986, independent: 456, independent conditional: 0, independent unconditional: 456, dependent: 920, dependent conditional: 0, dependent unconditional: 920, unknown: 10610, unknown conditional: 0, unknown unconditional: 10610] ], Cache Queries: [ total: 18319, independent: 7938, independent conditional: 0, independent unconditional: 7938, dependent: 3067, dependent conditional: 0, dependent unconditional: 3067, unknown: 7314, unknown conditional: 0, unknown unconditional: 7314] , Statistics on independence cache: Total cache size (in pairs): 598, Positive cache size: 443, Positive conditional cache size: 0, Positive unconditional cache size: 443, Negative cache size: 155, Negative conditional cache size: 0, Negative unconditional cache size: 155, Unknown cache size: 3, Unknown conditional cache size: 0, Unknown unconditional cache size: 3 - 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: 1710]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1,t2; [L1742] CALL, EXPR 0 my_drv_init() [L1736] 0 return 0; [L1742] RET, EXPR 0 my_drv_init() [L1742] 0 int ret = my_drv_init(); [L1743] COND TRUE 0 ret==0 [L1744] 0 int probe_ret; [L1745] 0 struct my_data data; [L1746] CALL 0 my_drv_probe(&data) [L1715] 0 struct device *d = &data->dev; [L1717] 0 data->shared.a = 0 [L1718] 0 data->shared.b = 0 [L1719] 0 int res = __VERIFIER_nondet_int(); [L1720] COND FALSE 0 !(\read(res)) [L1722] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=0, res=0, t1={3:0}, t2={4:0}] [L1723] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=1, res=0, t1={3:0}, t2={4:0}] [L1707] 2 struct device *dev = (struct device*)arg; [L1708] 2 struct my_data *data; [L1709] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1709] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1710] 2 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1707] 1 struct device *dev = (struct device*)arg; [L1708] 1 struct my_data *data; [L1709] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1709] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1710] 1 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, data->shared.a = 1=1155, dev={5:24}, t1={3:0}, t2={4:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: data->shared.a = 0 [1717] * C: data->shared.b = 0 [1718] * C: data->shared.b = 0 [1718] * C: data->shared.a = 0 [1717] * C: data->shared.a = 0 [1717] * C: data->shared.a = 0 [1717] * C: data->shared.b = 0 [1718] * C: data->shared.b = 0 [1718] and C: data->shared.a = 1 [1710] - UnprovableResult [Line: 1717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1753]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1754]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1732]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1755]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1749]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: 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: 1723]: 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: 1711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1711]: 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 4 procedures, 303 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 116.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 99.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 392 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 392 mSDsluCounter, 547 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3198 IncrementalHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 416 mSDtfsCounter, 3198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28463occurred in iteration=6, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 3278 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 00:32:15,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06579cd-ad5c-4d5d-9f41-8b4f4003a4ce/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