./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/30_Function_Pointer3_vs.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_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/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_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/30_Function_Pointer3_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/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_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/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 c8b500e58ad9de43c2267c6cdc33609b02abfe24fc1cf283e17f14a4a70ea61c --- 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 [2022-11-25 22:26:57,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:26:57,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:26:57,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:26:57,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:26:57,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:26:57,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:26:57,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:26:57,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:26:57,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:26:57,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:26:57,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:26:57,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:26:57,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:26:57,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:26:57,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:26:57,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:26:57,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:26:57,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:26:57,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:26:57,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:26:57,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:26:57,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:26:57,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:26:57,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:26:57,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:26:57,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:26:57,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:26:57,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:26:57,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:26:57,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:26:57,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:26:57,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:26:57,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:26:57,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:26:57,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:26:57,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:26:57,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:26:57,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:26:57,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:26:57,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:26:58,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-25 22:26:58,060 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:26:58,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:26:58,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:26:58,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:26:58,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:26:58,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:26:58,063 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:26:58,063 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:26:58,063 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:26:58,064 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:26:58,064 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:26:58,064 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:26:58,065 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:26:58,065 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:26:58,065 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:26:58,065 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:26:58,066 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:26:58,066 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:26:58,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:26:58,067 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:26:58,067 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:26:58,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:26:58,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:26:58,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:26:58,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:26:58,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:26:58,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:26:58,069 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 22:26:58,070 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:26:58,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:26:58,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:26:58,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:26:58,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:26:58,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:26:58,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:26:58,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:26:58,072 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:26:58,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:26:58,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:26:58,073 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:26:58,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:26:58,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:26:58,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:26:58,074 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_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8b500e58ad9de43c2267c6cdc33609b02abfe24fc1cf283e17f14a4a70ea61c [2022-11-25 22:26:58,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:26:58,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:26:58,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:26:58,365 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:26:58,365 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:26:58,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-ext/30_Function_Pointer3_vs.i [2022-11-25 22:27:01,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:27:01,683 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:27:01,683 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/sv-benchmarks/c/pthread-ext/30_Function_Pointer3_vs.i [2022-11-25 22:27:01,705 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/data/196fb2b9d/f73cf398e1f4456b8602b924d2a62073/FLAG5ec7739bb [2022-11-25 22:27:01,744 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/data/196fb2b9d/f73cf398e1f4456b8602b924d2a62073 [2022-11-25 22:27:01,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:27:01,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:27:01,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:27:01,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:27:01,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:27:01,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:27:01" (1/1) ... [2022-11-25 22:27:01,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576bccf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:01, skipping insertion in model container [2022-11-25 22:27:01,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:27:01" (1/1) ... [2022-11-25 22:27:01,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:27:01,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:27:02,398 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_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/sv-benchmarks/c/pthread-ext/30_Function_Pointer3_vs.i[30577,30590] [2022-11-25 22:27:02,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:27:02,420 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:27:02,488 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_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/sv-benchmarks/c/pthread-ext/30_Function_Pointer3_vs.i[30577,30590] [2022-11-25 22:27:02,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:27:02,544 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:27:02,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02 WrapperNode [2022-11-25 22:27:02,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:27:02,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:27:02,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:27:02,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:27:02,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,632 INFO L138 Inliner]: procedures = 174, calls = 19, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 96 [2022-11-25 22:27:02,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:27:02,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:27:02,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:27:02,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:27:02,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,673 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:27:02,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:27:02,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:27:02,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:27:02,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (1/1) ... [2022-11-25 22:27:02,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:27:02,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:27:02,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:27:02,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:27:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-25 22:27:02,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-25 22:27:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-25 22:27:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-25 22:27:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:27:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:27:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:27:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:27:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:27:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:27:02,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:27:02,804 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:27:02,977 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:27:02,979 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:27:03,265 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:27:03,354 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:27:03,354 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 22:27:03,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:27:03 BoogieIcfgContainer [2022-11-25 22:27:03,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:27:03,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:27:03,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:27:03,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:27:03,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:27:01" (1/3) ... [2022-11-25 22:27:03,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a6a342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:27:03, skipping insertion in model container [2022-11-25 22:27:03,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:27:02" (2/3) ... [2022-11-25 22:27:03,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a6a342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:27:03, skipping insertion in model container [2022-11-25 22:27:03,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:27:03" (3/3) ... [2022-11-25 22:27:03,368 INFO L112 eAbstractionObserver]: Analyzing ICFG 30_Function_Pointer3_vs.i [2022-11-25 22:27:03,379 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:27:03,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:27:03,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 22:27:03,393 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:27:03,485 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 22:27:03,523 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:27:03,540 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 111 transitions, 232 flow [2022-11-25 22:27:03,543 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 111 transitions, 232 flow [2022-11-25 22:27:03,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 111 transitions, 232 flow [2022-11-25 22:27:03,609 INFO L130 PetriNetUnfolder]: 7/121 cut-off events. [2022-11-25 22:27:03,609 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 22:27:03,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 121 events. 7/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 151 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 105. Up to 4 conditions per place. [2022-11-25 22:27:03,621 INFO L119 LiptonReduction]: Number of co-enabled transitions 3736 [2022-11-25 22:27:08,900 INFO L134 LiptonReduction]: Checked pairs total: 5070 [2022-11-25 22:27:08,900 INFO L136 LiptonReduction]: Total number of compositions: 110 [2022-11-25 22:27:08,909 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 23 transitions, 56 flow [2022-11-25 22:27:08,970 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 294 states, 270 states have (on average 2.8555555555555556) internal successors, (771), 293 states have internal predecessors, (771), 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) [2022-11-25 22:27:09,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:27:09,010 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;@3dd0dd00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:27:09,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-25 22:27:09,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 294 states, 270 states have (on average 2.8555555555555556) internal successors, (771), 293 states have internal predecessors, (771), 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) [2022-11-25 22:27:09,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:27:09,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:09,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:27:09,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-25 22:27:09,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:09,034 INFO L85 PathProgramCache]: Analyzing trace with hash 522543877, now seen corresponding path program 1 times [2022-11-25 22:27:09,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:09,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280930523] [2022-11-25 22:27:09,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:09,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:09,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:09,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:09,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280930523] [2022-11-25 22:27:09,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280930523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:09,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:09,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:27:09,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362752436] [2022-11-25 22:27:09,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:09,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:09,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:09,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:09,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:09,290 INFO L87 Difference]: Start difference. First operand has 294 states, 270 states have (on average 2.8555555555555556) internal successors, (771), 293 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 22:27:09,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:09,382 INFO L93 Difference]: Finished difference Result 153 states and 374 transitions. [2022-11-25 22:27:09,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:09,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-25 22:27:09,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:09,397 INFO L225 Difference]: With dead ends: 153 [2022-11-25 22:27:09,398 INFO L226 Difference]: Without dead ends: 153 [2022-11-25 22:27:09,398 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 [2022-11-25 22:27:09,405 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:09,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 7 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:27:09,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-25 22:27:09,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 118. [2022-11-25 22:27:09,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 2.4827586206896552) internal successors, (288), 117 states have internal predecessors, (288), 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) [2022-11-25 22:27:09,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 288 transitions. [2022-11-25 22:27:09,482 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 288 transitions. Word has length 5 [2022-11-25 22:27:09,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:09,483 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 288 transitions. [2022-11-25 22:27:09,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 22:27:09,485 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 288 transitions. [2022-11-25 22:27:09,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:27:09,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:09,486 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:09,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:27:09,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-25 22:27:09,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:09,489 INFO L85 PathProgramCache]: Analyzing trace with hash -590400811, now seen corresponding path program 1 times [2022-11-25 22:27:09,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:09,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755059366] [2022-11-25 22:27:09,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:09,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:27:09,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:27:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:27:09,586 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:27:09,587 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:27:09,590 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-11-25 22:27:09,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-25 22:27:09,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-25 22:27:09,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-25 22:27:09,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-25 22:27:09,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-25 22:27:09,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-25 22:27:09,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 14 remaining) [2022-11-25 22:27:09,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-25 22:27:09,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-25 22:27:09,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-25 22:27:09,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-25 22:27:09,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-25 22:27:09,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-25 22:27:09,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:27:09,604 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:27:09,608 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 22:27:09,608 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 22:27:09,671 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 22:27:09,683 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:27:09,683 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 186 places, 187 transitions, 398 flow [2022-11-25 22:27:09,683 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 186 places, 187 transitions, 398 flow [2022-11-25 22:27:09,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 187 transitions, 398 flow [2022-11-25 22:27:09,767 INFO L130 PetriNetUnfolder]: 10/196 cut-off events. [2022-11-25 22:27:09,768 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 22:27:09,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 196 events. 10/196 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 399 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 205. Up to 6 conditions per place. [2022-11-25 22:27:09,785 INFO L119 LiptonReduction]: Number of co-enabled transitions 14620 [2022-11-25 22:27:15,780 INFO L134 LiptonReduction]: Checked pairs total: 17979 [2022-11-25 22:27:15,780 INFO L136 LiptonReduction]: Total number of compositions: 178 [2022-11-25 22:27:15,781 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 47 transitions, 118 flow [2022-11-25 22:27:16,029 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5573 states, 5415 states have (on average 3.879039704524469) internal successors, (21005), 5572 states have internal predecessors, (21005), 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) [2022-11-25 22:27:16,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:27:16,031 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;@3dd0dd00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:27:16,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-25 22:27:16,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 5573 states, 5415 states have (on average 3.879039704524469) internal successors, (21005), 5572 states have internal predecessors, (21005), 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) [2022-11-25 22:27:16,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:27:16,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:16,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:27:16,051 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-25 22:27:16,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:16,052 INFO L85 PathProgramCache]: Analyzing trace with hash 938485557, now seen corresponding path program 1 times [2022-11-25 22:27:16,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:16,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072607758] [2022-11-25 22:27:16,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:16,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:16,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:16,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:16,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072607758] [2022-11-25 22:27:16,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072607758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:16,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:16,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:27:16,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688274661] [2022-11-25 22:27:16,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:16,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:16,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:16,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:16,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:16,117 INFO L87 Difference]: Start difference. First operand has 5573 states, 5415 states have (on average 3.879039704524469) internal successors, (21005), 5572 states have internal predecessors, (21005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 22:27:16,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:16,259 INFO L93 Difference]: Finished difference Result 2550 states and 9350 transitions. [2022-11-25 22:27:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:16,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-25 22:27:16,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:16,291 INFO L225 Difference]: With dead ends: 2550 [2022-11-25 22:27:16,291 INFO L226 Difference]: Without dead ends: 2550 [2022-11-25 22:27:16,291 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 [2022-11-25 22:27:16,297 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:16,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 22 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:27:16,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2022-11-25 22:27:16,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 1938. [2022-11-25 22:27:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1938 states, 1934 states have (on average 3.6783867631851086) internal successors, (7114), 1937 states have internal predecessors, (7114), 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) [2022-11-25 22:27:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 7114 transitions. [2022-11-25 22:27:16,447 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 7114 transitions. Word has length 5 [2022-11-25 22:27:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:16,447 INFO L495 AbstractCegarLoop]: Abstraction has 1938 states and 7114 transitions. [2022-11-25 22:27:16,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 22:27:16,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 7114 transitions. [2022-11-25 22:27:16,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 22:27:16,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:16,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:16,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:27:16,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-25 22:27:16,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:16,452 INFO L85 PathProgramCache]: Analyzing trace with hash -205513403, now seen corresponding path program 1 times [2022-11-25 22:27:16,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:16,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664418749] [2022-11-25 22:27:16,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:16,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:16,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:27:16,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:16,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664418749] [2022-11-25 22:27:16,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664418749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:16,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:16,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:27:16,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426603535] [2022-11-25 22:27:16,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:16,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:16,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:16,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:16,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:16,585 INFO L87 Difference]: Start difference. First operand 1938 states and 7114 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-11-25 22:27:16,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:16,710 INFO L93 Difference]: Finished difference Result 2206 states and 8081 transitions. [2022-11-25 22:27:16,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:16,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 [2022-11-25 22:27:16,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:16,807 INFO L225 Difference]: With dead ends: 2206 [2022-11-25 22:27:16,807 INFO L226 Difference]: Without dead ends: 2206 [2022-11-25 22:27:16,807 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 [2022-11-25 22:27:16,811 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:16,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 21 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:27:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-11-25 22:27:16,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2014. [2022-11-25 22:27:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2014 states, 2010 states have (on average 3.6696517412935323) internal successors, (7376), 2013 states have internal predecessors, (7376), 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) [2022-11-25 22:27:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2014 states to 2014 states and 7376 transitions. [2022-11-25 22:27:16,932 INFO L78 Accepts]: Start accepts. Automaton has 2014 states and 7376 transitions. Word has length 10 [2022-11-25 22:27:16,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:16,933 INFO L495 AbstractCegarLoop]: Abstraction has 2014 states and 7376 transitions. [2022-11-25 22:27:16,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-11-25 22:27:16,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2014 states and 7376 transitions. [2022-11-25 22:27:16,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 22:27:16,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:16,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:16,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:27:16,941 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-25 22:27:16,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:16,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1826631571, now seen corresponding path program 1 times [2022-11-25 22:27:16,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:16,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444629153] [2022-11-25 22:27:16,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:16,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:27:16,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:27:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:27:17,025 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:27:17,031 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:27:17,031 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2022-11-25 22:27:17,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2022-11-25 22:27:17,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2022-11-25 22:27:17,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2022-11-25 22:27:17,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2022-11-25 22:27:17,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2022-11-25 22:27:17,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2022-11-25 22:27:17,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 20 remaining) [2022-11-25 22:27:17,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-25 22:27:17,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2022-11-25 22:27:17,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2022-11-25 22:27:17,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2022-11-25 22:27:17,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2022-11-25 22:27:17,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2022-11-25 22:27:17,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2022-11-25 22:27:17,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2022-11-25 22:27:17,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2022-11-25 22:27:17,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2022-11-25 22:27:17,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2022-11-25 22:27:17,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2022-11-25 22:27:17,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:27:17,037 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 22:27:17,043 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-25 22:27:17,044 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:27:17,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:27:17 BasicIcfg [2022-11-25 22:27:17,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:27:17,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:27:17,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:27:17,110 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:27:17,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:27:03" (3/4) ... [2022-11-25 22:27:17,114 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:27:17,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:27:17,115 INFO L158 Benchmark]: Toolchain (without parser) took 15366.44ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 148.6MB in the beginning and 108.8MB in the end (delta: 39.8MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. [2022-11-25 22:27:17,115 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:27:17,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 795.56ms. Allocated memory is still 178.3MB. Free memory was 148.4MB in the beginning and 129.2MB in the end (delta: 19.2MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2022-11-25 22:27:17,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.18ms. Allocated memory is still 178.3MB. Free memory was 129.2MB in the beginning and 127.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:27:17,117 INFO L158 Benchmark]: Boogie Preprocessor took 44.55ms. Allocated memory is still 178.3MB. Free memory was 127.1MB in the beginning and 125.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:27:17,118 INFO L158 Benchmark]: RCFGBuilder took 663.14ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 106.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 22:27:17,118 INFO L158 Benchmark]: TraceAbstraction took 13748.95ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 106.2MB in the beginning and 108.8MB in the end (delta: -2.6MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2022-11-25 22:27:17,118 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 213.9MB. Free memory is still 108.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:27:17,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 795.56ms. Allocated memory is still 178.3MB. Free memory was 148.4MB in the beginning and 129.2MB in the end (delta: 19.2MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.18ms. Allocated memory is still 178.3MB. Free memory was 129.2MB in the beginning and 127.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.55ms. Allocated memory is still 178.3MB. Free memory was 127.1MB in the beginning and 125.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 663.14ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 106.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13748.95ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 106.2MB in the beginning and 108.8MB in the end (delta: -2.6MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 213.9MB. Free memory is still 108.8MB. 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: 5.4s, 111 PlacesBefore, 28 PlacesAfterwards, 111 TransitionsBefore, 23 TransitionsAfterwards, 3736 CoEnabledTransitionPairs, 8 FixpointIterations, 17 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 5 ChoiceCompositions, 110 TotalNumberOfCompositions, 5070 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3842, independent: 3738, independent conditional: 0, independent unconditional: 3738, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2378, independent: 2358, independent conditional: 0, independent unconditional: 2358, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2378, independent: 2348, independent conditional: 0, independent unconditional: 2348, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 72, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3842, independent: 1380, independent conditional: 0, independent unconditional: 1380, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 2378, unknown conditional: 0, unknown unconditional: 2378] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 186 PlacesBefore, 53 PlacesAfterwards, 187 TransitionsBefore, 47 TransitionsAfterwards, 14620 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 127 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 16 ConcurrentYvCompositions, 7 ChoiceCompositions, 178 TotalNumberOfCompositions, 17979 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13410, independent: 13255, independent conditional: 0, independent unconditional: 13255, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9569, independent: 9520, independent conditional: 0, independent unconditional: 9520, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9569, independent: 9483, independent conditional: 0, independent unconditional: 9483, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 86, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13410, independent: 3735, independent conditional: 0, independent unconditional: 3735, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 9569, unknown conditional: 0, unknown unconditional: 9569] , Statistics on independence cache: Total cache size (in pairs): 300, Positive cache size: 277, Positive conditional cache size: 0, Positive unconditional cache size: 277, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 726]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int mutex; [L690] 0 int res; [L732] 0 pthread_t t; [L733] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, mutex=0, pthread_create(&t, 0, thr1, 0)=-1, res=0, t={5:0}] [L734] COND TRUE 0 1 [L736] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [arg={0:0}, arg={0:0}, mutex=0, pthread_create(&t, 0, thr2, 0)=0, res=0, t={5:0}] [L712] 2 FuncType pf; [L713] COND FALSE 2 !(__VERIFIER_nondet_int()) [L716] 2 pf = f2 [L717] CALL 2 __VERIFIER_atomic_acquire() [L693] EXPR 2 mutex==0 [L693] CALL 2 assume_abort_if_not(mutex==0) [L3] COND FALSE 2 !(!cond) [L693] RET 2 assume_abort_if_not(mutex==0) [L694] 2 mutex = 1 [L717] RET 2 __VERIFIER_atomic_acquire() [L718] CALL, EXPR 2 pf(4,3) [L708] 2 return x-y+2; [L724] COND TRUE 1 1 [L726] 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L718] RET, EXPR 2 pf(4,3) [L718] 2 res = pf(4,3) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, mutex=1, pf={-1:1}, pf(4,3)=3, res=3, res = pf(4,3)=49] [L726] 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=3] Now there is a data race on ~res~0 between C: res = pf(4,3) [718] and C: res < 10 [726] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 733]: 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: 736]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 178 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 35 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 249 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 31 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5573occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 804 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 22:27:17,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c26c3a2-a9a7-40fa-8e3e-10349ef94ec0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE