./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6d5da741db538e8728209fa456d0dc9c63ceba5521dacbaf062bafc94e3da01 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:38:33,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:38:33,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:38:33,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:38:33,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:38:33,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:38:33,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:38:33,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:38:33,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:38:33,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:38:33,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:38:33,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:38:33,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:38:33,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:38:33,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:38:33,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:38:33,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:38:33,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:38:33,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:38:33,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:38:33,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:38:33,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:38:33,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:38:33,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:38:33,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:38:33,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:38:33,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:38:33,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:38:33,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:38:33,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:38:33,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:38:33,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:38:33,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:38:33,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:38:33,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:38:33,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:38:33,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:38:33,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:38:33,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:38:33,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:38:33,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:38:33,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:38:33,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:38:33,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:38:33,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:38:33,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:38:33,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:38:33,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:38:33,443 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:38:33,443 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:38:33,444 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:38:33,444 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:38:33,445 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:38:33,446 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:38:33,446 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:38:33,446 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:38:33,447 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:38:33,447 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:38:33,447 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:38:33,448 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:38:33,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:38:33,449 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:38:33,449 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:38:33,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:38:33,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:38:33,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:38:33,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:38:33,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:38:33,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:38:33,451 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:38:33,451 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:38:33,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:38:33,452 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:38:33,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:38:33,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:38:33,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:38:33,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:38:33,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:38:33,457 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:38:33,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:38:33,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:38:33,457 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:38:33,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:38:33,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:38:33,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:38:33,459 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_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6d5da741db538e8728209fa456d0dc9c63ceba5521dacbaf062bafc94e3da01 [2022-11-26 00:38:33,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:38:33,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:38:33,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:38:33,899 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:38:33,899 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:38:33,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-40.i [2022-11-26 00:38:37,147 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:38:37,405 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:38:37,410 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-40.i [2022-11-26 00:38:37,428 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/data/ff9f4a21c/5d5842b5ec964b75bb2d57f3def66171/FLAG79432e29d [2022-11-26 00:38:37,446 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/data/ff9f4a21c/5d5842b5ec964b75bb2d57f3def66171 [2022-11-26 00:38:37,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:38:37,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:38:37,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:38:37,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:38:37,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:38:37,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:37,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730592b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37, skipping insertion in model container [2022-11-26 00:38:37,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:37,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:38:37,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:38:37,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:38:37,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:38:37,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:38:37,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:38:37,847 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_d10a70ce-772e-48a8-9fa2-f4194db87f5e/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-40.i[30190,30203] [2022-11-26 00:38:37,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:38:37,874 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:38:37,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:38:37,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:38:37,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:38:37,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:38:37,916 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_d10a70ce-772e-48a8-9fa2-f4194db87f5e/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-40.i[30190,30203] [2022-11-26 00:38:37,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:38:37,958 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:38:37,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37 WrapperNode [2022-11-26 00:38:37,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:38:37,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:38:37,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:38:37,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:38:37,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:37,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:38,007 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-11-26 00:38:38,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:38:38,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:38:38,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:38:38,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:38:38,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:38,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:38,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:38,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:38,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:38,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:38,040 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:38,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:38,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:38:38,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:38:38,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:38:38,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:38:38,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (1/1) ... [2022-11-26 00:38:38,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:38:38,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:38:38,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:38:38,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:38:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:38:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-26 00:38:38,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-26 00:38:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:38:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:38:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:38:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:38:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:38:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-26 00:38:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-26 00:38:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:38:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:38:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:38:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:38:38,141 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:38:38,378 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:38:38,381 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:38:38,713 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:38:38,744 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:38:38,745 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-26 00:38:38,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:38:38 BoogieIcfgContainer [2022-11-26 00:38:38,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:38:38,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:38:38,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:38:38,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:38:38,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:38:37" (1/3) ... [2022-11-26 00:38:38,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110e0e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:38:38, skipping insertion in model container [2022-11-26 00:38:38,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:37" (2/3) ... [2022-11-26 00:38:38,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110e0e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:38:38, skipping insertion in model container [2022-11-26 00:38:38,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:38:38" (3/3) ... [2022-11-26 00:38:38,791 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-40.i [2022-11-26 00:38:38,802 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:38:38,829 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:38:38,829 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-26 00:38:38,829 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:38:38,964 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-26 00:38:39,016 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:38:39,050 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 210 transitions, 442 flow [2022-11-26 00:38:39,057 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 210 transitions, 442 flow [2022-11-26 00:38:39,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 210 transitions, 442 flow [2022-11-26 00:38:39,233 INFO L130 PetriNetUnfolder]: 30/521 cut-off events. [2022-11-26 00:38:39,234 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-26 00:38:39,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 521 events. 30/521 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2110 event pairs, 0 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 247. Up to 8 conditions per place. [2022-11-26 00:38:39,253 INFO L119 LiptonReduction]: Number of co-enabled transitions 10044 [2022-11-26 00:38:44,906 INFO L134 LiptonReduction]: Checked pairs total: 19710 [2022-11-26 00:38:44,907 INFO L136 LiptonReduction]: Total number of compositions: 213 [2022-11-26 00:38:44,916 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 65 transitions, 152 flow [2022-11-26 00:38:45,041 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2211 states, 1800 states have (on average 3.17) internal successors, (5706), 2210 states have internal predecessors, (5706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:38:45,068 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;@224ee5dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:38:45,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-26 00:38:45,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 2211 states, 1800 states have (on average 3.17) internal successors, (5706), 2210 states have internal predecessors, (5706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:38:45,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:45,084 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:38:45,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-26 00:38:45,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash 779, now seen corresponding path program 1 times [2022-11-26 00:38:45,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:45,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161112288] [2022-11-26 00:38:45,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:45,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:45,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:38:45,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:38:45,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161112288] [2022-11-26 00:38:45,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161112288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:38:45,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:38:45,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:38:45,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115167129] [2022-11-26 00:38:45,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:38:45,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:38:45,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:38:45,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:38:45,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:38:45,314 INFO L87 Difference]: Start difference. First operand has 2211 states, 1800 states have (on average 3.17) internal successors, (5706), 2210 states have internal predecessors, (5706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:38:45,435 INFO L93 Difference]: Finished difference Result 658 states and 1579 transitions. [2022-11-26 00:38:45,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:38:45,444 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-26 00:38:45,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:38:45,470 INFO L225 Difference]: With dead ends: 658 [2022-11-26 00:38:45,470 INFO L226 Difference]: Without dead ends: 575 [2022-11-26 00:38:45,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:38:45,477 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:38:45,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:38:45,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-11-26 00:38:45,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2022-11-26 00:38:45,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 548 states have (on average 2.5036496350364965) internal successors, (1372), 574 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1372 transitions. [2022-11-26 00:38:45,585 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1372 transitions. Word has length 1 [2022-11-26 00:38:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:38:45,586 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 1372 transitions. [2022-11-26 00:38:45,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,588 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1372 transitions. [2022-11-26 00:38:45,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:38:45,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:45,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:38:45,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:38:45,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-26 00:38:45,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:45,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1565520786, now seen corresponding path program 1 times [2022-11-26 00:38:45,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:45,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229008596] [2022-11-26 00:38:45,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:45,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:45,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:38:45,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:38:45,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229008596] [2022-11-26 00:38:45,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229008596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:38:45,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:38:45,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:38:45,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489088786] [2022-11-26 00:38:45,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:38:45,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:38:45,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:38:45,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:38:45,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:38:45,738 INFO L87 Difference]: Start difference. First operand 575 states and 1372 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:38:45,823 INFO L93 Difference]: Finished difference Result 357 states and 844 transitions. [2022-11-26 00:38:45,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:38:45,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 00:38:45,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:38:45,826 INFO L225 Difference]: With dead ends: 357 [2022-11-26 00:38:45,826 INFO L226 Difference]: Without dead ends: 357 [2022-11-26 00:38:45,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:38:45,828 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 26 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:38:45,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 21 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:38:45,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-11-26 00:38:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-11-26 00:38:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 343 states have (on average 2.4606413994169096) internal successors, (844), 356 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 844 transitions. [2022-11-26 00:38:45,842 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 844 transitions. Word has length 6 [2022-11-26 00:38:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:38:45,843 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 844 transitions. [2022-11-26 00:38:45,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 844 transitions. [2022-11-26 00:38:45,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:38:45,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:45,844 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-26 00:38:45,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:38:45,844 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-26 00:38:45,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:45,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1536421672, now seen corresponding path program 1 times [2022-11-26 00:38:45,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:45,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036553550] [2022-11-26 00:38:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:45,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:38:45,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:38:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:38:45,916 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:38:45,916 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:38:45,917 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2022-11-26 00:38:45,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-26 00:38:45,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-26 00:38:45,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-26 00:38:45,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-26 00:38:45,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-26 00:38:45,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-26 00:38:45,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-26 00:38:45,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-26 00:38:45,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2022-11-26 00:38:45,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-26 00:38:45,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-26 00:38:45,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-26 00:38:45,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-26 00:38:45,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-26 00:38:45,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-11-26 00:38:45,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-26 00:38:45,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-26 00:38:45,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-11-26 00:38:45,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-26 00:38:45,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-26 00:38:45,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2022-11-26 00:38:45,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-11-26 00:38:45,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-11-26 00:38:45,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-26 00:38:45,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-26 00:38:45,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-26 00:38:45,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-26 00:38:45,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-26 00:38:45,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 36 remaining) [2022-11-26 00:38:45,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-26 00:38:45,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-26 00:38:45,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-26 00:38:45,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-26 00:38:45,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-26 00:38:45,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2022-11-26 00:38:45,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:38:45,933 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 00:38:45,935 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-26 00:38:45,935 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-26 00:38:45,975 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-26 00:38:45,979 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:38:45,979 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 260 transitions, 568 flow [2022-11-26 00:38:45,980 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 260 transitions, 568 flow [2022-11-26 00:38:45,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 260 transitions, 568 flow [2022-11-26 00:38:46,372 INFO L130 PetriNetUnfolder]: 125/1739 cut-off events. [2022-11-26 00:38:46,372 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-26 00:38:46,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1836 conditions, 1739 events. 125/1739 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 10322 event pairs, 2 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 980. Up to 32 conditions per place. [2022-11-26 00:38:46,447 INFO L119 LiptonReduction]: Number of co-enabled transitions 24780 [2022-11-26 00:38:52,587 INFO L134 LiptonReduction]: Checked pairs total: 63808 [2022-11-26 00:38:52,587 INFO L136 LiptonReduction]: Total number of compositions: 246 [2022-11-26 00:38:52,592 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 96 transitions, 240 flow [2022-11-26 00:39:03,048 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 255160 states, 246312 states have (on average 4.452832180324141) internal successors, (1096786), 255159 states have internal predecessors, (1096786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:03,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:39:03,072 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;@224ee5dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:39:03,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-11-26 00:39:03,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 255160 states, 246312 states have (on average 4.452832180324141) internal successors, (1096786), 255159 states have internal predecessors, (1096786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:03,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:39:03,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:39:03,455 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:39:03,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-26 00:39:03,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:39:03,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2022-11-26 00:39:03,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:39:03,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448933989] [2022-11-26 00:39:03,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:03,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:39:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:39:03,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:39:03,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448933989] [2022-11-26 00:39:03,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448933989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:39:03,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:39:03,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:39:03,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191583266] [2022-11-26 00:39:03,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:39:03,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:39:03,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:39:03,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:39:03,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:39:04,016 INFO L87 Difference]: Start difference. First operand has 255160 states, 246312 states have (on average 4.452832180324141) internal successors, (1096786), 255159 states have internal predecessors, (1096786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:05,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:39:05,972 INFO L93 Difference]: Finished difference Result 52869 states and 210999 transitions. [2022-11-26 00:39:05,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:39:05,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-26 00:39:05,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:39:07,044 INFO L225 Difference]: With dead ends: 52869 [2022-11-26 00:39:07,044 INFO L226 Difference]: Without dead ends: 51718 [2022-11-26 00:39:07,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:39:07,048 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:39:07,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:39:07,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51718 states. [2022-11-26 00:39:09,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51718 to 51718. [2022-11-26 00:39:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51718 states, 51466 states have (on average 4.0084910426300855) internal successors, (206301), 51717 states have internal predecessors, (206301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:09,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51718 states to 51718 states and 206301 transitions. [2022-11-26 00:39:09,815 INFO L78 Accepts]: Start accepts. Automaton has 51718 states and 206301 transitions. Word has length 1 [2022-11-26 00:39:09,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:39:09,816 INFO L495 AbstractCegarLoop]: Abstraction has 51718 states and 206301 transitions. [2022-11-26 00:39:09,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:09,816 INFO L276 IsEmpty]: Start isEmpty. Operand 51718 states and 206301 transitions. [2022-11-26 00:39:09,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:39:09,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:39:09,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:39:09,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:39:09,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-26 00:39:09,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:39:09,819 INFO L85 PathProgramCache]: Analyzing trace with hash 401415162, now seen corresponding path program 1 times [2022-11-26 00:39:09,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:39:09,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139856657] [2022-11-26 00:39:09,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:09,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:39:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:39:10,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:39:10,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139856657] [2022-11-26 00:39:10,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139856657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:39:10,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:39:10,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:39:10,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417835915] [2022-11-26 00:39:10,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:39:10,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:39:10,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:39:10,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:39:10,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:39:10,416 INFO L87 Difference]: Start difference. First operand 51718 states and 206301 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:11,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:39:11,459 INFO L93 Difference]: Finished difference Result 41215 states and 158550 transitions. [2022-11-26 00:39:11,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:39:11,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 00:39:11,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:39:11,885 INFO L225 Difference]: With dead ends: 41215 [2022-11-26 00:39:11,886 INFO L226 Difference]: Without dead ends: 41215 [2022-11-26 00:39:11,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:39:11,890 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 57 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:39:11,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 60 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:39:12,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41215 states. [2022-11-26 00:39:13,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41215 to 38892. [2022-11-26 00:39:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38892 states, 38745 states have (on average 3.923215898825655) internal successors, (152005), 38891 states have internal predecessors, (152005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:14,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38892 states to 38892 states and 152005 transitions. [2022-11-26 00:39:14,267 INFO L78 Accepts]: Start accepts. Automaton has 38892 states and 152005 transitions. Word has length 6 [2022-11-26 00:39:14,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:39:14,267 INFO L495 AbstractCegarLoop]: Abstraction has 38892 states and 152005 transitions. [2022-11-26 00:39:14,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:14,269 INFO L276 IsEmpty]: Start isEmpty. Operand 38892 states and 152005 transitions. [2022-11-26 00:39:14,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:39:14,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:39:14,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:39:14,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:39:14,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-26 00:39:14,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:39:14,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2056743820, now seen corresponding path program 1 times [2022-11-26 00:39:14,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:39:14,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464589675] [2022-11-26 00:39:14,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:14,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:39:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:39:14,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:39:14,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464589675] [2022-11-26 00:39:14,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464589675] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:39:14,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393064968] [2022-11-26 00:39:14,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:14,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:39:14,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:39:14,360 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:39:14,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:39:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:14,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:39:14,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:39:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:39:14,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:39:14,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393064968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:39:14,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:39:14,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-26 00:39:14,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820553767] [2022-11-26 00:39:14,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:39:14,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:39:14,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:39:14,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:39:14,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:39:14,513 INFO L87 Difference]: Start difference. First operand 38892 states and 152005 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:15,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:39:15,829 INFO L93 Difference]: Finished difference Result 71821 states and 271545 transitions. [2022-11-26 00:39:15,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:39:15,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-26 00:39:15,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:39:16,497 INFO L225 Difference]: With dead ends: 71821 [2022-11-26 00:39:16,497 INFO L226 Difference]: Without dead ends: 71821 [2022-11-26 00:39:16,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:39:16,498 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 49 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:39:16,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 42 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:39:16,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71821 states. [2022-11-26 00:39:18,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71821 to 45682. [2022-11-26 00:39:18,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45682 states, 45535 states have (on average 3.8781376962775886) internal successors, (176591), 45681 states have internal predecessors, (176591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:18,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45682 states to 45682 states and 176591 transitions. [2022-11-26 00:39:18,725 INFO L78 Accepts]: Start accepts. Automaton has 45682 states and 176591 transitions. Word has length 10 [2022-11-26 00:39:18,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:39:18,726 INFO L495 AbstractCegarLoop]: Abstraction has 45682 states and 176591 transitions. [2022-11-26 00:39:18,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:18,726 INFO L276 IsEmpty]: Start isEmpty. Operand 45682 states and 176591 transitions. [2022-11-26 00:39:18,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:39:18,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:39:18,728 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-26 00:39:18,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:39:18,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10a70ce-772e-48a8-9fa2-f4194db87f5e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-26 00:39:18,934 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-26 00:39:18,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:39:18,935 INFO L85 PathProgramCache]: Analyzing trace with hash -499149798, now seen corresponding path program 1 times [2022-11-26 00:39:18,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:39:18,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248439558] [2022-11-26 00:39:18,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:18,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:39:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:39:18,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:39:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:39:18,967 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:39:18,968 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:39:18,968 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2022-11-26 00:39:18,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2022-11-26 00:39:18,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2022-11-26 00:39:18,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2022-11-26 00:39:18,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2022-11-26 00:39:18,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2022-11-26 00:39:18,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (35 of 42 remaining) [2022-11-26 00:39:18,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2022-11-26 00:39:18,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2022-11-26 00:39:18,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2022-11-26 00:39:18,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2022-11-26 00:39:18,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2022-11-26 00:39:18,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2022-11-26 00:39:18,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2022-11-26 00:39:18,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2022-11-26 00:39:18,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2022-11-26 00:39:18,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2022-11-26 00:39:18,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2022-11-26 00:39:18,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2022-11-26 00:39:18,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2022-11-26 00:39:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2022-11-26 00:39:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2022-11-26 00:39:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2022-11-26 00:39:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2022-11-26 00:39:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2022-11-26 00:39:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2022-11-26 00:39:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2022-11-26 00:39:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2022-11-26 00:39:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2022-11-26 00:39:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 42 remaining) [2022-11-26 00:39:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2022-11-26 00:39:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2022-11-26 00:39:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2022-11-26 00:39:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2022-11-26 00:39:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2022-11-26 00:39:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2022-11-26 00:39:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2022-11-26 00:39:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2022-11-26 00:39:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2022-11-26 00:39:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2022-11-26 00:39:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2022-11-26 00:39:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2022-11-26 00:39:18,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:39:18,978 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-26 00:39:18,979 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-26 00:39:18,979 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-26 00:39:19,018 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-11-26 00:39:19,022 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:39:19,022 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 295 places, 310 transitions, 698 flow [2022-11-26 00:39:19,022 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 295 places, 310 transitions, 698 flow [2022-11-26 00:39:19,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 310 transitions, 698 flow [2022-11-26 00:39:21,669 INFO L130 PetriNetUnfolder]: 532/5843 cut-off events. [2022-11-26 00:39:21,669 INFO L131 PetriNetUnfolder]: For 419/419 co-relation queries the response was YES. [2022-11-26 00:39:21,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6294 conditions, 5843 events. 532/5843 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 47085 event pairs, 64 based on Foata normal form. 0/4654 useless extension candidates. Maximal degree in co-relation 3338. Up to 192 conditions per place. [2022-11-26 00:39:22,110 INFO L119 LiptonReduction]: Number of co-enabled transitions 44208 [2022-11-26 00:39:29,739 INFO L134 LiptonReduction]: Checked pairs total: 128989 [2022-11-26 00:39:29,739 INFO L136 LiptonReduction]: Total number of compositions: 281 [2022-11-26 00:39:29,740 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 118 places, 123 transitions, 324 flow