./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9 --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 f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a --- 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-6b4ec56 [2022-11-20 20:38:07,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:38:07,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:38:07,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:38:07,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:38:07,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:38:07,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:38:07,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:38:07,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:38:07,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:38:07,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:38:07,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:38:07,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:38:07,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:38:07,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:38:07,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:38:07,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:38:07,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:38:07,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:38:07,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:38:07,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:38:07,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:38:07,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:38:08,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:38:08,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:38:08,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:38:08,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:38:08,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:38:08,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:38:08,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:38:08,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:38:08,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:38:08,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:38:08,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:38:08,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:38:08,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:38:08,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:38:08,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:38:08,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:38:08,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:38:08,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:38:08,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-20 20:38:08,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:38:08,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:38:08,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:38:08,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:38:08,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:38:08,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:38:08,069 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:38:08,069 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:38:08,070 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:38:08,070 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:38:08,071 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:38:08,071 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:38:08,072 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:38:08,072 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:38:08,072 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:38:08,072 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:38:08,073 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:38:08,073 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:38:08,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:38:08,074 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:38:08,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:38:08,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:38:08,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:38:08,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:38:08,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:38:08,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:38:08,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:38:08,076 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 20:38:08,076 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:38:08,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:38:08,076 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:38:08,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:38:08,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:38:08,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:38:08,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:38:08,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:38:08,078 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:38:08,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:38:08,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:38:08,078 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:38:08,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:38:08,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:38:08,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:38:08,079 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_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a [2022-11-20 20:38:08,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:38:08,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:38:08,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:38:08,420 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:38:08,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:38:08,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/pthread/queue_ok_longer.i [2022-11-20 20:38:11,606 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:38:11,940 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:38:11,945 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/sv-benchmarks/c/pthread/queue_ok_longer.i [2022-11-20 20:38:11,966 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/data/6f3bb0069/3b11ca0a355a43b8a9cf6c081413a1d4/FLAG2f3d56bb1 [2022-11-20 20:38:11,988 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/data/6f3bb0069/3b11ca0a355a43b8a9cf6c081413a1d4 [2022-11-20 20:38:11,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:38:11,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:38:11,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:38:11,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:38:12,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:38:12,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:38:11" (1/1) ... [2022-11-20 20:38:12,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a62a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12, skipping insertion in model container [2022-11-20 20:38:12,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:38:11" (1/1) ... [2022-11-20 20:38:12,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:38:12,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:38:12,673 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_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/sv-benchmarks/c/pthread/queue_ok_longer.i[43272,43285] [2022-11-20 20:38:12,681 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_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/sv-benchmarks/c/pthread/queue_ok_longer.i[43545,43558] [2022-11-20 20:38:12,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:38:12,699 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:38:12,777 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_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/sv-benchmarks/c/pthread/queue_ok_longer.i[43272,43285] [2022-11-20 20:38:12,786 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_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/sv-benchmarks/c/pthread/queue_ok_longer.i[43545,43558] [2022-11-20 20:38:12,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:38:12,864 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:38:12,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12 WrapperNode [2022-11-20 20:38:12,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:38:12,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:38:12,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:38:12,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:38:12,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:12,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:12,978 INFO L138 Inliner]: procedures = 274, calls = 57, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 387 [2022-11-20 20:38:12,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:38:12,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:38:12,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:38:12,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:38:12,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:12,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:13,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:13,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:13,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:13,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:13,067 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:13,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:13,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:38:13,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:38:13,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:38:13,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:38:13,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (1/1) ... [2022-11-20 20:38:13,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:38:13,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:38:13,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:38:13,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82d4d5b-44f2-489f-acd4-4bbd20b5a1f6/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:38:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-20 20:38:13,160 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-20 20:38:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-20 20:38:13,160 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-20 20:38:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:38:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:38:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 20:38:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:38:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 20:38:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:38:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:38:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:38:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:38:13,164 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 20:38:13,403 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:38:13,405 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:38:14,202 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:38:14,214 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:38:14,214 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 20:38:14,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:38:14 BoogieIcfgContainer [2022-11-20 20:38:14,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:38:14,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:38:14,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:38:14,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:38:14,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:38:11" (1/3) ... [2022-11-20 20:38:14,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780f6611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:38:14, skipping insertion in model container [2022-11-20 20:38:14,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:38:12" (2/3) ... [2022-11-20 20:38:14,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780f6611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:38:14, skipping insertion in model container [2022-11-20 20:38:14,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:38:14" (3/3) ... [2022-11-20 20:38:14,227 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2022-11-20 20:38:14,236 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 20:38:14,249 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:38:14,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-11-20 20:38:14,249 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 20:38:14,474 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 20:38:14,535 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 20:38:14,555 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 447 transitions, 910 flow [2022-11-20 20:38:14,560 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 447 transitions, 910 flow [2022-11-20 20:38:14,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 447 transitions, 910 flow [2022-11-20 20:38:14,821 INFO L130 PetriNetUnfolder]: 13/445 cut-off events. [2022-11-20 20:38:14,821 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 20:38:14,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 445 events. 13/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 784 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-11-20 20:38:14,889 INFO L119 LiptonReduction]: Number of co-enabled transitions 53036 [2022-11-20 20:38:49,000 WARN L233 SmtUtils]: Spent 5.84s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:38:54,210 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:39:08,170 WARN L233 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 196 DAG size of output: 192 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:39:19,046 WARN L233 SmtUtils]: Spent 7.96s on a formula simplification. DAG size of input: 196 DAG size of output: 192 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:39:33,878 WARN L233 SmtUtils]: Spent 10.84s on a formula simplification. DAG size of input: 234 DAG size of output: 223 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:39:40,534 WARN L233 SmtUtils]: Spent 6.65s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:39:57,496 WARN L233 SmtUtils]: Spent 16.96s on a formula simplification. DAG size of input: 244 DAG size of output: 231 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:40:09,145 WARN L233 SmtUtils]: Spent 11.65s on a formula simplification that was a NOOP. DAG size: 213 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:40:09,588 INFO L134 LiptonReduction]: Checked pairs total: 456867 [2022-11-20 20:40:09,589 INFO L136 LiptonReduction]: Total number of compositions: 308 [2022-11-20 20:40:09,597 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 206 places, 206 transitions, 428 flow [2022-11-20 20:40:11,680 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59044 states, 58633 states have (on average 2.9394709463953745) internal successors, (172350), 59043 states have internal predecessors, (172350), 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) [2022-11-20 20:40:11,736 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:40:11,741 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;@6b736b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:40:11,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-20 20:40:12,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 59044 states, 58633 states have (on average 2.9394709463953745) internal successors, (172350), 59043 states have internal predecessors, (172350), 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) [2022-11-20 20:40:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 20:40:12,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:40:12,085 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 20:40:12,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 20:40:12,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:40:12,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1583, now seen corresponding path program 1 times [2022-11-20 20:40:12,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:40:12,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320620475] [2022-11-20 20:40:12,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:40:12,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:40:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:40:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:40:12,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:40:12,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320620475] [2022-11-20 20:40:12,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320620475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:40:12,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:40:12,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 20:40:12,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021707500] [2022-11-20 20:40:12,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:40:12,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:40:12,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:40:12,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:40:12,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:40:12,444 INFO L87 Difference]: Start difference. First operand has 59044 states, 58633 states have (on average 2.9394709463953745) internal successors, (172350), 59043 states have internal predecessors, (172350), 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) [2022-11-20 20:40:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:40:14,016 INFO L93 Difference]: Finished difference Result 59037 states and 172343 transitions. [2022-11-20 20:40:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:40:14,020 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 [2022-11-20 20:40:14,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:40:14,708 INFO L225 Difference]: With dead ends: 59037 [2022-11-20 20:40:14,708 INFO L226 Difference]: Without dead ends: 59037 [2022-11-20 20:40:14,710 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 [2022-11-20 20:40:14,717 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:40:14,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:40:14,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59037 states. [2022-11-20 20:40:16,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59037 to 59037. [2022-11-20 20:40:16,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59037 states, 58633 states have (on average 2.9393515597018745) internal successors, (172343), 59036 states have internal predecessors, (172343), 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) [2022-11-20 20:40:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59037 states to 59037 states and 172343 transitions. [2022-11-20 20:40:17,607 INFO L78 Accepts]: Start accepts. Automaton has 59037 states and 172343 transitions. Word has length 1 [2022-11-20 20:40:17,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:40:17,608 INFO L495 AbstractCegarLoop]: Abstraction has 59037 states and 172343 transitions. [2022-11-20 20:40:17,608 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) [2022-11-20 20:40:17,608 INFO L276 IsEmpty]: Start isEmpty. Operand 59037 states and 172343 transitions. [2022-11-20 20:40:17,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 20:40:17,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:40:17,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 20:40:17,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:40:17,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 20:40:17,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:40:17,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1506156850, now seen corresponding path program 1 times [2022-11-20 20:40:17,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:40:17,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844124416] [2022-11-20 20:40:17,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:40:17,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:40:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:40:17,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:40:17,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:40:17,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844124416] [2022-11-20 20:40:17,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844124416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:40:17,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:40:17,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:40:17,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151144104] [2022-11-20 20:40:17,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:40:17,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:40:17,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:40:17,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:40:17,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:40:17,889 INFO L87 Difference]: Start difference. First operand 59037 states and 172343 transitions. 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) [2022-11-20 20:40:18,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:40:18,871 INFO L93 Difference]: Finished difference Result 61978 states and 178986 transitions. [2022-11-20 20:40:18,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:40:18,872 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 [2022-11-20 20:40:18,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:40:19,199 INFO L225 Difference]: With dead ends: 61978 [2022-11-20 20:40:19,199 INFO L226 Difference]: Without dead ends: 61978 [2022-11-20 20:40:19,200 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 [2022-11-20 20:40:19,201 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 181 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:40:19,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 321 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:40:19,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61978 states. [2022-11-20 20:40:21,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61978 to 58363. [2022-11-20 20:40:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58363 states, 57985 states have (on average 2.9386737949469692) internal successors, (170399), 58362 states have internal predecessors, (170399), 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) [2022-11-20 20:40:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58363 states to 58363 states and 170399 transitions. [2022-11-20 20:40:21,347 INFO L78 Accepts]: Start accepts. Automaton has 58363 states and 170399 transitions. Word has length 5 [2022-11-20 20:40:21,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:40:21,348 INFO L495 AbstractCegarLoop]: Abstraction has 58363 states and 170399 transitions. [2022-11-20 20:40:21,348 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) [2022-11-20 20:40:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 58363 states and 170399 transitions. [2022-11-20 20:40:21,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 20:40:21,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:40:21,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:40:21,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:40:21,350 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 20:40:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:40:21,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1662949, now seen corresponding path program 1 times [2022-11-20 20:40:21,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:40:21,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619344672] [2022-11-20 20:40:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:40:21,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:40:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:40:21,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:40:21,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:40:21,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619344672] [2022-11-20 20:40:21,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619344672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:40:21,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:40:21,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:40:21,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949455227] [2022-11-20 20:40:21,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:40:21,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:40:21,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:40:21,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:40:21,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:40:21,444 INFO L87 Difference]: Start difference. First operand 58363 states and 170399 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-20 20:40:22,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:40:22,155 INFO L93 Difference]: Finished difference Result 61641 states and 178123 transitions. [2022-11-20 20:40:22,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:40:22,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-11-20 20:40:22,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:40:22,821 INFO L225 Difference]: With dead ends: 61641 [2022-11-20 20:40:22,821 INFO L226 Difference]: Without dead ends: 61641 [2022-11-20 20:40:22,822 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 [2022-11-20 20:40:22,829 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 178 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:40:22,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 315 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:40:23,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61641 states. [2022-11-20 20:40:24,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61641 to 57811. [2022-11-20 20:40:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57811 states, 57453 states have (on average 2.938262579847876) internal successors, (168812), 57810 states have internal predecessors, (168812), 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) [2022-11-20 20:40:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57811 states to 57811 states and 168812 transitions. [2022-11-20 20:40:24,372 INFO L78 Accepts]: Start accepts. Automaton has 57811 states and 168812 transitions. Word has length 7 [2022-11-20 20:40:24,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:40:24,373 INFO L495 AbstractCegarLoop]: Abstraction has 57811 states and 168812 transitions. [2022-11-20 20:40:24,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-20 20:40:24,373 INFO L276 IsEmpty]: Start isEmpty. Operand 57811 states and 168812 transitions. [2022-11-20 20:40:24,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 20:40:24,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:40:24,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:40:24,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:40:24,376 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 20:40:24,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:40:24,376 INFO L85 PathProgramCache]: Analyzing trace with hash -586879383, now seen corresponding path program 1 times [2022-11-20 20:40:24,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:40:24,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895481238] [2022-11-20 20:40:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:40:24,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:40:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:40:24,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:40:24,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:40:24,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895481238] [2022-11-20 20:40:24,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895481238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:40:24,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:40:24,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:40:24,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780341585] [2022-11-20 20:40:24,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:40:24,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:40:24,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:40:24,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:40:24,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:40:24,468 INFO L87 Difference]: Start difference. First operand 57811 states and 168812 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-20 20:40:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:40:25,611 INFO L93 Difference]: Finished difference Result 104531 states and 305286 transitions. [2022-11-20 20:40:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:40:25,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-20 20:40:25,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:40:25,965 INFO L225 Difference]: With dead ends: 104531 [2022-11-20 20:40:25,965 INFO L226 Difference]: Without dead ends: 104531 [2022-11-20 20:40:25,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:40:25,967 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 167 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:40:25,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 319 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:40:26,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104531 states. [2022-11-20 20:40:28,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104531 to 58541. [2022-11-20 20:40:28,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58541 states, 58183 states have (on average 2.9378512623962325) internal successors, (170933), 58540 states have internal predecessors, (170933), 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) [2022-11-20 20:40:28,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58541 states to 58541 states and 170933 transitions. [2022-11-20 20:40:28,485 INFO L78 Accepts]: Start accepts. Automaton has 58541 states and 170933 transitions. Word has length 9 [2022-11-20 20:40:28,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:40:28,486 INFO L495 AbstractCegarLoop]: Abstraction has 58541 states and 170933 transitions. [2022-11-20 20:40:28,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-20 20:40:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 58541 states and 170933 transitions. [2022-11-20 20:40:28,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 20:40:28,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:40:28,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:40:28,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 20:40:28,488 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 20:40:28,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:40:28,489 INFO L85 PathProgramCache]: Analyzing trace with hash 696568738, now seen corresponding path program 1 times [2022-11-20 20:40:28,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:40:28,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785778857] [2022-11-20 20:40:28,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:40:28,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:40:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:40:28,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:40:28,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:40:28,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785778857] [2022-11-20 20:40:28,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785778857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:40:28,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:40:28,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:40:28,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659876773] [2022-11-20 20:40:28,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:40:28,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:40:28,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:40:28,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:40:28,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:40:28,897 INFO L87 Difference]: Start difference. First operand 58541 states and 170933 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) [2022-11-20 20:40:32,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:40:32,466 INFO L93 Difference]: Finished difference Result 95127 states and 274854 transitions. [2022-11-20 20:40:32,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:40:32,466 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 [2022-11-20 20:40:32,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:40:32,754 INFO L225 Difference]: With dead ends: 95127 [2022-11-20 20:40:32,754 INFO L226 Difference]: Without dead ends: 95127 [2022-11-20 20:40:32,754 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 [2022-11-20 20:40:32,755 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 389 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 2249 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:40:32,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 336 Invalid, 2450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 2249 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-20 20:40:32,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95127 states. [2022-11-20 20:40:34,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95127 to 87211. [2022-11-20 20:40:34,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87211 states, 86853 states have (on average 2.977214373711904) internal successors, (258580), 87210 states have internal predecessors, (258580), 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) [2022-11-20 20:40:35,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87211 states to 87211 states and 258580 transitions. [2022-11-20 20:40:35,292 INFO L78 Accepts]: Start accepts. Automaton has 87211 states and 258580 transitions. Word has length 10 [2022-11-20 20:40:35,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:40:35,292 INFO L495 AbstractCegarLoop]: Abstraction has 87211 states and 258580 transitions. [2022-11-20 20:40:35,292 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) [2022-11-20 20:40:35,292 INFO L276 IsEmpty]: Start isEmpty. Operand 87211 states and 258580 transitions. [2022-11-20 20:40:35,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 20:40:35,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:40:35,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:40:35,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 20:40:35,295 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 20:40:35,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:40:35,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1786283043, now seen corresponding path program 1 times [2022-11-20 20:40:35,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:40:35,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989598758] [2022-11-20 20:40:35,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:40:35,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:40:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:40:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:40:35,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:40:35,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989598758] [2022-11-20 20:40:35,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989598758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:40:35,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:40:35,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:40:35,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932384073] [2022-11-20 20:40:35,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:40:35,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:40:35,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:40:35,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:40:35,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:40:35,367 INFO L87 Difference]: Start difference. First operand 87211 states and 258580 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-11-20 20:40:37,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:40:37,266 INFO L93 Difference]: Finished difference Result 159713 states and 472932 transitions. [2022-11-20 20:40:37,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:40:37,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 [2022-11-20 20:40:37,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:40:37,791 INFO L225 Difference]: With dead ends: 159713 [2022-11-20 20:40:37,791 INFO L226 Difference]: Without dead ends: 159713 [2022-11-20 20:40:37,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:40:37,792 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 172 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:40:37,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 315 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:40:38,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159713 states. [2022-11-20 20:40:40,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159713 to 88137. [2022-11-20 20:40:40,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88137 states, 87779 states have (on average 2.9766800715433077) internal successors, (261290), 88136 states have internal predecessors, (261290), 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) [2022-11-20 20:40:40,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88137 states to 88137 states and 261290 transitions. [2022-11-20 20:40:40,916 INFO L78 Accepts]: Start accepts. Automaton has 88137 states and 261290 transitions. Word has length 11 [2022-11-20 20:40:40,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:40:40,916 INFO L495 AbstractCegarLoop]: Abstraction has 88137 states and 261290 transitions. [2022-11-20 20:40:40,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-11-20 20:40:40,916 INFO L276 IsEmpty]: Start isEmpty. Operand 88137 states and 261290 transitions. [2022-11-20 20:40:40,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 20:40:40,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:40:40,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:40:40,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 20:40:40,918 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 20:40:40,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:40:40,919 INFO L85 PathProgramCache]: Analyzing trace with hash -195558751, now seen corresponding path program 1 times [2022-11-20 20:40:40,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:40:40,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824710510] [2022-11-20 20:40:40,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:40:40,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:40:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:40:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:40:41,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:40:41,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824710510] [2022-11-20 20:40:41,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824710510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:40:41,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:40:41,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:40:41,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558931295] [2022-11-20 20:40:41,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:40:41,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:40:41,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:40:41,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:40:41,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:40:41,303 INFO L87 Difference]: Start difference. First operand 88137 states and 261290 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-11-20 20:40:43,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:40:43,926 INFO L93 Difference]: Finished difference Result 111651 states and 331426 transitions. [2022-11-20 20:40:43,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:40:43,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2022-11-20 20:40:43,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:40:44,406 INFO L225 Difference]: With dead ends: 111651 [2022-11-20 20:40:44,406 INFO L226 Difference]: Without dead ends: 111651 [2022-11-20 20:40:44,407 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 [2022-11-20 20:40:44,407 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 236 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 20:40:44,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 204 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 20:40:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111651 states. [2022-11-20 20:40:47,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111651 to 100299. [2022-11-20 20:40:47,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100299 states, 99941 states have (on average 2.9822795449315094) internal successors, (298052), 100298 states have internal predecessors, (298052), 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) [2022-11-20 20:40:47,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100299 states to 100299 states and 298052 transitions. [2022-11-20 20:40:47,660 INFO L78 Accepts]: Start accepts. Automaton has 100299 states and 298052 transitions. Word has length 12 [2022-11-20 20:40:47,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:40:47,660 INFO L495 AbstractCegarLoop]: Abstraction has 100299 states and 298052 transitions. [2022-11-20 20:40:47,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-11-20 20:40:47,661 INFO L276 IsEmpty]: Start isEmpty. Operand 100299 states and 298052 transitions. [2022-11-20 20:40:47,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 20:40:47,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:40:47,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:40:47,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 20:40:47,663 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 20:40:47,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:40:47,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1555181258, now seen corresponding path program 1 times [2022-11-20 20:40:47,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:40:47,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218937066] [2022-11-20 20:40:47,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:40:47,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:40:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:40:47,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:40:47,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:40:47,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218937066] [2022-11-20 20:40:47,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218937066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:40:47,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:40:47,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:40:47,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022081947] [2022-11-20 20:40:47,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:40:47,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:40:47,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:40:47,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:40:47,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:40:47,949 INFO L87 Difference]: Start difference. First operand 100299 states and 298052 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-20 20:40:50,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:40:50,794 INFO L93 Difference]: Finished difference Result 139973 states and 415063 transitions. [2022-11-20 20:40:50,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:40:50,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2022-11-20 20:40:50,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:40:51,297 INFO L225 Difference]: With dead ends: 139973 [2022-11-20 20:40:51,297 INFO L226 Difference]: Without dead ends: 139973 [2022-11-20 20:40:51,298 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 [2022-11-20 20:40:51,300 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 254 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:40:51,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 201 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 20:40:51,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139973 states. [2022-11-20 20:40:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139973 to 103439. [2022-11-20 20:40:54,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103439 states, 103087 states have (on average 2.980055681123711) internal successors, (307205), 103438 states have internal predecessors, (307205), 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) [2022-11-20 20:40:54,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103439 states to 103439 states and 307205 transitions. [2022-11-20 20:40:54,785 INFO L78 Accepts]: Start accepts. Automaton has 103439 states and 307205 transitions. Word has length 14 [2022-11-20 20:40:54,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:40:54,786 INFO L495 AbstractCegarLoop]: Abstraction has 103439 states and 307205 transitions. [2022-11-20 20:40:54,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-20 20:40:54,786 INFO L276 IsEmpty]: Start isEmpty. Operand 103439 states and 307205 transitions. [2022-11-20 20:40:54,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 20:40:54,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:40:54,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:40:54,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 20:40:54,790 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 20:40:54,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:40:54,790 INFO L85 PathProgramCache]: Analyzing trace with hash -475398824, now seen corresponding path program 1 times [2022-11-20 20:40:54,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:40:54,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597385683] [2022-11-20 20:40:54,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:40:54,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:40:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:40:55,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:40:55,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:40:55,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597385683] [2022-11-20 20:40:55,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597385683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:40:55,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:40:55,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:40:55,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382767289] [2022-11-20 20:40:55,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:40:55,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:40:55,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:40:55,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:40:55,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:40:55,114 INFO L87 Difference]: Start difference. First operand 103439 states and 307205 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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) [2022-11-20 20:40:57,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:40:57,440 INFO L93 Difference]: Finished difference Result 106312 states and 315543 transitions. [2022-11-20 20:40:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:40:57,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2022-11-20 20:40:57,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:40:57,769 INFO L225 Difference]: With dead ends: 106312 [2022-11-20 20:40:57,770 INFO L226 Difference]: Without dead ends: 106312 [2022-11-20 20:40:57,770 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 [2022-11-20 20:40:57,770 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 220 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:40:57,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 207 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 20:40:57,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106312 states. [2022-11-20 20:40:59,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106312 to 106312. [2022-11-20 20:40:59,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106312 states, 105960 states have (on average 2.9779445073612685) internal successors, (315543), 106311 states have internal predecessors, (315543), 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)