./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/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_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/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_37540e26-5ca1-4e02-ba90-043696878b80/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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- 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 00:02:22,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:02:22,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:02:22,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:02:22,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:02:22,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:02:22,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:02:22,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:02:22,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:02:22,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:02:22,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:02:22,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:02:22,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:02:22,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:02:22,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:02:22,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:02:22,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:02:22,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:02:22,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:02:22,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:02:22,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:02:22,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:02:22,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:02:22,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:02:22,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:02:22,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:02:22,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:02:22,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:02:22,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:02:22,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:02:22,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:02:22,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:02:22,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:02:22,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:02:22,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:02:22,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:02:22,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:02:22,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:02:22,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:02:22,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:02:22,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:02:22,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:02:22,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:02:22,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:02:22,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:02:22,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:02:22,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:02:22,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:02:22,423 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:02:22,424 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:02:22,424 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:02:22,424 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:02:22,425 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:02:22,425 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:02:22,426 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:02:22,426 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:02:22,426 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:02:22,426 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:02:22,427 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:02:22,427 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:02:22,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:02:22,428 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:02:22,429 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:02:22,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:02:22,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:02:22,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:02:22,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:02:22,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:02:22,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:02:22,431 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:02:22,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:02:22,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:02:22,431 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:02:22,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:02:22,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:02:22,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:02:22,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:02:22,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:02:22,433 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:02:22,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:02:22,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:02:22,434 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:02:22,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:02:22,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:02:22,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:02:22,435 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_37540e26-5ca1-4e02-ba90-043696878b80/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2022-11-26 00:02:22,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:02:22,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:02:22,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:02:22,717 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:02:22,718 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:02:22,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread/singleton.i [2022-11-26 00:02:25,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:02:26,066 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:02:26,070 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/sv-benchmarks/c/pthread/singleton.i [2022-11-26 00:02:26,090 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur/data/166fff96b/014fd5ebb7d24aa0a5f8c46f4cee3fa8/FLAG76aaabfa9 [2022-11-26 00:02:26,107 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur/data/166fff96b/014fd5ebb7d24aa0a5f8c46f4cee3fa8 [2022-11-26 00:02:26,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:02:26,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:02:26,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:02:26,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:02:26,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:02:26,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:26,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7543244b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26, skipping insertion in model container [2022-11-26 00:02:26,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:26,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:02:26,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:02:26,466 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:02:26,785 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_37540e26-5ca1-4e02-ba90-043696878b80/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-11-26 00:02:26,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:02:26,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:02:26,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:02:26,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:02:26,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:26,842 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:02:26,858 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:02:26,881 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_37540e26-5ca1-4e02-ba90-043696878b80/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-11-26 00:02:26,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:02:26,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:02:26,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:02:26,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:02:26,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:26,979 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:02:26,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26 WrapperNode [2022-11-26 00:02:26,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:02:26,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:02:26,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:02:26,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:02:26,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,056 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-11-26 00:02:27,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:02:27,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:02:27,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:02:27,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:02:27,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:02:27,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:02:27,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:02:27,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:02:27,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (1/1) ... [2022-11-26 00:02:27,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:02:27,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:02:27,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:02:27,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37540e26-5ca1-4e02-ba90-043696878b80/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:02:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:02:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:02:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:02:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:02:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:02:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-11-26 00:02:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-11-26 00:02:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-26 00:02:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-26 00:02:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-26 00:02:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-26 00:02:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-26 00:02:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-26 00:02:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:02:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:02:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:02:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:02:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:02:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:02:27,188 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 00:02:27,345 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:02:27,348 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:02:27,804 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:02:27,867 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:02:27,868 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:02:27,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:27 BoogieIcfgContainer [2022-11-26 00:02:27,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:02:27,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:02:27,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:02:27,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:02:27,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:26" (1/3) ... [2022-11-26 00:02:27,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6faedb3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:27, skipping insertion in model container [2022-11-26 00:02:27,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:26" (2/3) ... [2022-11-26 00:02:27,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6faedb3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:27, skipping insertion in model container [2022-11-26 00:02:27,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:27" (3/3) ... [2022-11-26 00:02:27,890 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2022-11-26 00:02:27,901 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:02:27,915 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:02:27,915 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-26 00:02:27,915 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:02:28,132 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-11-26 00:02:28,171 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:02:28,187 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 282 places, 272 transitions, 651 flow [2022-11-26 00:02:28,190 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 282 places, 272 transitions, 651 flow [2022-11-26 00:02:28,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 272 transitions, 651 flow [2022-11-26 00:02:28,273 INFO L130 PetriNetUnfolder]: 6/185 cut-off events. [2022-11-26 00:02:28,273 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-26 00:02:28,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 185 events. 6/185 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2022-11-26 00:02:28,285 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2022-11-26 00:02:41,293 INFO L134 LiptonReduction]: Checked pairs total: 27650 [2022-11-26 00:02:41,299 INFO L136 LiptonReduction]: Total number of compositions: 163 [2022-11-26 00:02:41,316 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141 places, 130 transitions, 367 flow [2022-11-26 00:02:44,262 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 53877 states, 53468 states have (on average 4.781158823969477) internal successors, (255639), 53876 states have internal predecessors, (255639), 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 00:02:44,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:02:44,329 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;@19fead17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:02:44,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-26 00:02:44,670 INFO L276 IsEmpty]: Start isEmpty. Operand has 53877 states, 53468 states have (on average 4.781158823969477) internal successors, (255639), 53876 states have internal predecessors, (255639), 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 00:02:44,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:02:44,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:44,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:02:44,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:02:44,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:44,713 INFO L85 PathProgramCache]: Analyzing trace with hash 691687736, now seen corresponding path program 1 times [2022-11-26 00:02:44,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:44,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727365267] [2022-11-26 00:02:44,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:44,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:45,041 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 00:02:45,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:45,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727365267] [2022-11-26 00:02:45,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727365267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:45,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:45,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:02:45,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915719450] [2022-11-26 00:02:45,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:45,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:02:45,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:45,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:02:45,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:02:45,165 INFO L87 Difference]: Start difference. First operand has 53877 states, 53468 states have (on average 4.781158823969477) internal successors, (255639), 53876 states have internal predecessors, (255639), 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 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:02:45,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:45,623 INFO L93 Difference]: Finished difference Result 8795 states and 36024 transitions. [2022-11-26 00:02:45,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:02:45,626 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:02:45,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:45,727 INFO L225 Difference]: With dead ends: 8795 [2022-11-26 00:02:45,728 INFO L226 Difference]: Without dead ends: 8788 [2022-11-26 00:02:45,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:02:45,733 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:45,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:02:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8788 states. [2022-11-26 00:02:46,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8788 to 8788. [2022-11-26 00:02:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8788 states, 8777 states have (on average 4.102540731457218) internal successors, (36008), 8787 states have internal predecessors, (36008), 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 00:02:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8788 states to 8788 states and 36008 transitions. [2022-11-26 00:02:46,601 INFO L78 Accepts]: Start accepts. Automaton has 8788 states and 36008 transitions. Word has length 5 [2022-11-26 00:02:46,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:46,606 INFO L495 AbstractCegarLoop]: Abstraction has 8788 states and 36008 transitions. [2022-11-26 00:02:46,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:02:46,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8788 states and 36008 transitions. [2022-11-26 00:02:46,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:02:46,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:46,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:46,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:02:46,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:02:46,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:46,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1719485742, now seen corresponding path program 1 times [2022-11-26 00:02:46,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:46,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301015579] [2022-11-26 00:02:46,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:46,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:47,186 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 00:02:47,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:47,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301015579] [2022-11-26 00:02:47,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301015579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:47,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:47,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:02:47,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45469114] [2022-11-26 00:02:47,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:47,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:02:47,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:47,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:02:47,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:02:47,190 INFO L87 Difference]: Start difference. First operand 8788 states and 36008 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:02:48,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:48,433 INFO L93 Difference]: Finished difference Result 13227 states and 52743 transitions. [2022-11-26 00:02:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:02:48,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:02:48,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:48,619 INFO L225 Difference]: With dead ends: 13227 [2022-11-26 00:02:48,619 INFO L226 Difference]: Without dead ends: 13203 [2022-11-26 00:02:48,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:02:48,621 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 179 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:48,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 150 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:02:48,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13203 states. [2022-11-26 00:02:49,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13203 to 12285. [2022-11-26 00:02:49,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12285 states, 12275 states have (on average 4.065580448065173) internal successors, (49905), 12284 states have internal predecessors, (49905), 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 00:02:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12285 states to 12285 states and 49905 transitions. [2022-11-26 00:02:49,282 INFO L78 Accepts]: Start accepts. Automaton has 12285 states and 49905 transitions. Word has length 8 [2022-11-26 00:02:49,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:49,283 INFO L495 AbstractCegarLoop]: Abstraction has 12285 states and 49905 transitions. [2022-11-26 00:02:49,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:02:49,283 INFO L276 IsEmpty]: Start isEmpty. Operand 12285 states and 49905 transitions. [2022-11-26 00:02:49,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:02:49,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:49,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:49,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:02:49,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:02:49,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:49,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1184251273, now seen corresponding path program 1 times [2022-11-26 00:02:49,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:49,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233046159] [2022-11-26 00:02:49,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:49,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:49,671 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 00:02:49,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:49,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233046159] [2022-11-26 00:02:49,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233046159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:49,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:49,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:02:49,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185473045] [2022-11-26 00:02:49,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:49,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:02:49,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:49,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:02:49,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:02:49,674 INFO L87 Difference]: Start difference. First operand 12285 states and 49905 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:02:50,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:50,020 INFO L93 Difference]: Finished difference Result 12271 states and 49872 transitions. [2022-11-26 00:02:50,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:02:50,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:02:50,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:50,095 INFO L225 Difference]: With dead ends: 12271 [2022-11-26 00:02:50,096 INFO L226 Difference]: Without dead ends: 12271 [2022-11-26 00:02:50,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:02:50,097 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 28 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:50,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 58 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:02:50,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12271 states. [2022-11-26 00:02:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12271 to 12271. [2022-11-26 00:02:50,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12271 states, 12262 states have (on average 4.067199478062307) internal successors, (49872), 12270 states have internal predecessors, (49872), 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 00:02:50,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12271 states to 12271 states and 49872 transitions. [2022-11-26 00:02:50,842 INFO L78 Accepts]: Start accepts. Automaton has 12271 states and 49872 transitions. Word has length 8 [2022-11-26 00:02:50,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:50,842 INFO L495 AbstractCegarLoop]: Abstraction has 12271 states and 49872 transitions. [2022-11-26 00:02:50,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:02:50,843 INFO L276 IsEmpty]: Start isEmpty. Operand 12271 states and 49872 transitions. [2022-11-26 00:02:50,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:02:50,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:50,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:50,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:02:50,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:02:50,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:50,847 INFO L85 PathProgramCache]: Analyzing trace with hash 396816011, now seen corresponding path program 1 times [2022-11-26 00:02:50,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:50,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93627556] [2022-11-26 00:02:50,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:50,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:51,903 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 00:02:51,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:51,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93627556] [2022-11-26 00:02:51,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93627556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:51,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:51,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:02:51,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975656059] [2022-11-26 00:02:51,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:51,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:02:51,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:51,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:02:51,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:02:51,907 INFO L87 Difference]: Start difference. First operand 12271 states and 49872 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:02:53,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:53,706 INFO L93 Difference]: Finished difference Result 17546 states and 68937 transitions. [2022-11-26 00:02:53,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:02:53,706 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 22 [2022-11-26 00:02:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:53,811 INFO L225 Difference]: With dead ends: 17546 [2022-11-26 00:02:53,812 INFO L226 Difference]: Without dead ends: 17535 [2022-11-26 00:02:53,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:02:53,816 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 547 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:53,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 216 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:02:53,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17535 states. [2022-11-26 00:02:54,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17535 to 13320. [2022-11-26 00:02:54,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13320 states, 13311 states have (on average 4.086920591991586) internal successors, (54401), 13319 states have internal predecessors, (54401), 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 00:02:54,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13320 states to 13320 states and 54401 transitions. [2022-11-26 00:02:54,469 INFO L78 Accepts]: Start accepts. Automaton has 13320 states and 54401 transitions. Word has length 22 [2022-11-26 00:02:54,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:54,470 INFO L495 AbstractCegarLoop]: Abstraction has 13320 states and 54401 transitions. [2022-11-26 00:02:54,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:02:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 13320 states and 54401 transitions. [2022-11-26 00:02:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:02:54,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:54,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:54,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:02:54,482 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:02:54,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:54,483 INFO L85 PathProgramCache]: Analyzing trace with hash 702636357, now seen corresponding path program 2 times [2022-11-26 00:02:54,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:54,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880561512] [2022-11-26 00:02:54,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:54,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:55,406 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 00:02:55,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:55,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880561512] [2022-11-26 00:02:55,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880561512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:55,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:55,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:02:55,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698002218] [2022-11-26 00:02:55,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:55,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:02:55,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:55,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:02:55,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:02:55,408 INFO L87 Difference]: Start difference. First operand 13320 states and 54401 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:02:57,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:57,738 INFO L93 Difference]: Finished difference Result 21896 states and 87381 transitions. [2022-11-26 00:02:57,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:02:57,739 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 22 [2022-11-26 00:02:57,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:57,862 INFO L225 Difference]: With dead ends: 21896 [2022-11-26 00:02:57,862 INFO L226 Difference]: Without dead ends: 21874 [2022-11-26 00:02:57,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-11-26 00:02:57,863 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 624 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:57,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 316 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:02:57,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21874 states. [2022-11-26 00:02:58,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21874 to 14369. [2022-11-26 00:02:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14369 states, 14360 states have (on average 4.103760445682451) internal successors, (58930), 14368 states have internal predecessors, (58930), 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 00:02:58,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14369 states to 14369 states and 58930 transitions. [2022-11-26 00:02:58,514 INFO L78 Accepts]: Start accepts. Automaton has 14369 states and 58930 transitions. Word has length 22 [2022-11-26 00:02:58,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:58,515 INFO L495 AbstractCegarLoop]: Abstraction has 14369 states and 58930 transitions. [2022-11-26 00:02:58,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:02:58,515 INFO L276 IsEmpty]: Start isEmpty. Operand 14369 states and 58930 transitions. [2022-11-26 00:02:58,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:02:58,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:58,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:58,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:02:58,517 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:02:58,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:58,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1237185137, now seen corresponding path program 3 times [2022-11-26 00:02:58,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:58,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630946678] [2022-11-26 00:02:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:58,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:59,370 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 00:02:59,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:59,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630946678] [2022-11-26 00:02:59,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630946678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:59,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:59,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:02:59,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114870518] [2022-11-26 00:02:59,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:59,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:02:59,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:59,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:02:59,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:02:59,372 INFO L87 Difference]: Start difference. First operand 14369 states and 58930 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:01,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:01,685 INFO L93 Difference]: Finished difference Result 22980 states and 91989 transitions. [2022-11-26 00:03:01,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:03:01,686 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 22 [2022-11-26 00:03:01,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:01,970 INFO L225 Difference]: With dead ends: 22980 [2022-11-26 00:03:01,970 INFO L226 Difference]: Without dead ends: 22974 [2022-11-26 00:03:01,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-11-26 00:03:01,971 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 496 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:01,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 348 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:03:02,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22974 states. [2022-11-26 00:03:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22974 to 16428. [2022-11-26 00:03:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16428 states, 16419 states have (on average 4.127047932273586) internal successors, (67762), 16427 states have internal predecessors, (67762), 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 00:03:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16428 states to 16428 states and 67762 transitions. [2022-11-26 00:03:02,742 INFO L78 Accepts]: Start accepts. Automaton has 16428 states and 67762 transitions. Word has length 22 [2022-11-26 00:03:02,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:02,743 INFO L495 AbstractCegarLoop]: Abstraction has 16428 states and 67762 transitions. [2022-11-26 00:03:02,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:02,759 INFO L276 IsEmpty]: Start isEmpty. Operand 16428 states and 67762 transitions. [2022-11-26 00:03:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:03:02,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:02,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:02,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:03:02,761 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:02,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:02,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1879612767, now seen corresponding path program 4 times [2022-11-26 00:03:02,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:02,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693186237] [2022-11-26 00:03:02,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:02,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:03,408 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 00:03:03,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:03,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693186237] [2022-11-26 00:03:03,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693186237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:03,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:03,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:03:03,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985097707] [2022-11-26 00:03:03,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:03,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:03:03,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:03,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:03:03,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:03:03,410 INFO L87 Difference]: Start difference. First operand 16428 states and 67762 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:05,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:05,599 INFO L93 Difference]: Finished difference Result 26219 states and 106982 transitions. [2022-11-26 00:03:05,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:03:05,600 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 22 [2022-11-26 00:03:05,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:05,682 INFO L225 Difference]: With dead ends: 26219 [2022-11-26 00:03:05,682 INFO L226 Difference]: Without dead ends: 26213 [2022-11-26 00:03:05,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:03:05,682 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 463 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:05,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 354 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:03:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26213 states. [2022-11-26 00:03:06,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26213 to 16435. [2022-11-26 00:03:06,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16435 states, 16426 states have (on average 4.126445878485328) internal successors, (67781), 16434 states have internal predecessors, (67781), 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 00:03:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16435 states to 16435 states and 67781 transitions. [2022-11-26 00:03:06,439 INFO L78 Accepts]: Start accepts. Automaton has 16435 states and 67781 transitions. Word has length 22 [2022-11-26 00:03:06,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:06,439 INFO L495 AbstractCegarLoop]: Abstraction has 16435 states and 67781 transitions. [2022-11-26 00:03:06,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:06,440 INFO L276 IsEmpty]: Start isEmpty. Operand 16435 states and 67781 transitions. [2022-11-26 00:03:06,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:03:06,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:06,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:06,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:03:06,443 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:06,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:06,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1990935547, now seen corresponding path program 5 times [2022-11-26 00:03:06,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:06,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102386800] [2022-11-26 00:03:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:06,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:07,103 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 00:03:07,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:07,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102386800] [2022-11-26 00:03:07,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102386800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:07,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:07,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:03:07,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930202126] [2022-11-26 00:03:07,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:07,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:03:07,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:07,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:03:07,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:03:07,106 INFO L87 Difference]: Start difference. First operand 16435 states and 67781 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:09,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:09,406 INFO L93 Difference]: Finished difference Result 26131 states and 105438 transitions. [2022-11-26 00:03:09,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:03:09,406 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 22 [2022-11-26 00:03:09,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:09,494 INFO L225 Difference]: With dead ends: 26131 [2022-11-26 00:03:09,495 INFO L226 Difference]: Without dead ends: 26125 [2022-11-26 00:03:09,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:03:09,496 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 465 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:09,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 363 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:03:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26125 states. [2022-11-26 00:03:10,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26125 to 17519. [2022-11-26 00:03:10,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17519 states, 17510 states have (on average 4.134209023415191) internal successors, (72390), 17518 states have internal predecessors, (72390), 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 00:03:10,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17519 states to 17519 states and 72390 transitions. [2022-11-26 00:03:10,198 INFO L78 Accepts]: Start accepts. Automaton has 17519 states and 72390 transitions. Word has length 22 [2022-11-26 00:03:10,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:10,198 INFO L495 AbstractCegarLoop]: Abstraction has 17519 states and 72390 transitions. [2022-11-26 00:03:10,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:10,198 INFO L276 IsEmpty]: Start isEmpty. Operand 17519 states and 72390 transitions. [2022-11-26 00:03:10,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:03:10,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:10,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:10,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:03:10,200 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:10,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:10,201 INFO L85 PathProgramCache]: Analyzing trace with hash -641781047, now seen corresponding path program 6 times [2022-11-26 00:03:10,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:10,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287879631] [2022-11-26 00:03:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:10,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:10,791 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 00:03:10,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:10,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287879631] [2022-11-26 00:03:10,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287879631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:10,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:10,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:03:10,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078351007] [2022-11-26 00:03:10,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:10,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:03:10,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:10,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:03:10,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:03:10,793 INFO L87 Difference]: Start difference. First operand 17519 states and 72390 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:12,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:12,489 INFO L93 Difference]: Finished difference Result 21948 states and 90985 transitions. [2022-11-26 00:03:12,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:03:12,489 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 22 [2022-11-26 00:03:12,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:12,562 INFO L225 Difference]: With dead ends: 21948 [2022-11-26 00:03:12,562 INFO L226 Difference]: Without dead ends: 21940 [2022-11-26 00:03:12,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:03:12,563 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 375 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:12,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 288 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:03:12,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21940 states. [2022-11-26 00:03:12,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21940 to 13975. [2022-11-26 00:03:12,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13975 states, 13966 states have (on average 4.140913647429471) internal successors, (57832), 13974 states have internal predecessors, (57832), 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 00:03:13,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13975 states to 13975 states and 57832 transitions. [2022-11-26 00:03:13,217 INFO L78 Accepts]: Start accepts. Automaton has 13975 states and 57832 transitions. Word has length 22 [2022-11-26 00:03:13,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:13,217 INFO L495 AbstractCegarLoop]: Abstraction has 13975 states and 57832 transitions. [2022-11-26 00:03:13,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:13,217 INFO L276 IsEmpty]: Start isEmpty. Operand 13975 states and 57832 transitions. [2022-11-26 00:03:13,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:03:13,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:13,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:13,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:03:13,220 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:13,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:13,220 INFO L85 PathProgramCache]: Analyzing trace with hash -987180535, now seen corresponding path program 7 times [2022-11-26 00:03:13,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:13,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941229217] [2022-11-26 00:03:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:13,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:13,834 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 00:03:13,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:13,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941229217] [2022-11-26 00:03:13,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941229217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:13,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:13,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:03:13,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556683945] [2022-11-26 00:03:13,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:13,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:03:13,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:13,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:03:13,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:03:13,836 INFO L87 Difference]: Start difference. First operand 13975 states and 57832 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:15,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:15,643 INFO L93 Difference]: Finished difference Result 25700 states and 105485 transitions. [2022-11-26 00:03:15,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:03:15,643 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 22 [2022-11-26 00:03:15,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:16,008 INFO L225 Difference]: With dead ends: 25700 [2022-11-26 00:03:16,008 INFO L226 Difference]: Without dead ends: 25688 [2022-11-26 00:03:16,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:03:16,009 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 422 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:16,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 289 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:03:16,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25688 states. [2022-11-26 00:03:16,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25688 to 14943. [2022-11-26 00:03:16,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14943 states, 14934 states have (on average 4.154010981652605) internal successors, (62036), 14942 states have internal predecessors, (62036), 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 00:03:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14943 states to 14943 states and 62036 transitions. [2022-11-26 00:03:16,385 INFO L78 Accepts]: Start accepts. Automaton has 14943 states and 62036 transitions. Word has length 22 [2022-11-26 00:03:16,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:16,385 INFO L495 AbstractCegarLoop]: Abstraction has 14943 states and 62036 transitions. [2022-11-26 00:03:16,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:16,385 INFO L276 IsEmpty]: Start isEmpty. Operand 14943 states and 62036 transitions. [2022-11-26 00:03:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:03:16,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:16,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:16,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:03:16,387 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:16,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:16,388 INFO L85 PathProgramCache]: Analyzing trace with hash 950395593, now seen corresponding path program 8 times [2022-11-26 00:03:16,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:16,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057814953] [2022-11-26 00:03:16,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:16,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:17,121 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 00:03:17,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:17,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057814953] [2022-11-26 00:03:17,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057814953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:17,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:17,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:03:17,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167576197] [2022-11-26 00:03:17,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:17,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:03:17,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:17,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:03:17,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:03:17,123 INFO L87 Difference]: Start difference. First operand 14943 states and 62036 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:18,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:18,998 INFO L93 Difference]: Finished difference Result 22601 states and 92541 transitions. [2022-11-26 00:03:18,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:03:18,998 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 22 [2022-11-26 00:03:18,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:19,069 INFO L225 Difference]: With dead ends: 22601 [2022-11-26 00:03:19,069 INFO L226 Difference]: Without dead ends: 22589 [2022-11-26 00:03:19,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:03:19,070 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 409 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:19,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 374 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:03:19,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22589 states. [2022-11-26 00:03:19,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22589 to 10636. [2022-11-26 00:03:19,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10636 states, 10631 states have (on average 4.146364405982504) internal successors, (44080), 10635 states have internal predecessors, (44080), 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 00:03:19,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10636 states to 10636 states and 44080 transitions. [2022-11-26 00:03:19,591 INFO L78 Accepts]: Start accepts. Automaton has 10636 states and 44080 transitions. Word has length 22 [2022-11-26 00:03:19,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:19,591 INFO L495 AbstractCegarLoop]: Abstraction has 10636 states and 44080 transitions. [2022-11-26 00:03:19,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 00:03:19,591 INFO L276 IsEmpty]: Start isEmpty. Operand 10636 states and 44080 transitions. [2022-11-26 00:03:19,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-26 00:03:19,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:19,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:19,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:03:19,599 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:19,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:19,600 INFO L85 PathProgramCache]: Analyzing trace with hash -721026014, now seen corresponding path program 1 times [2022-11-26 00:03:19,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:19,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711006165] [2022-11-26 00:03:19,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:19,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:19,875 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 00:03:19,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:19,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711006165] [2022-11-26 00:03:19,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711006165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:19,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:19,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:03:19,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283847906] [2022-11-26 00:03:19,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:19,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:03:19,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:19,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:03:19,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:03:19,878 INFO L87 Difference]: Start difference. First operand 10636 states and 44080 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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 00:03:20,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:20,363 INFO L93 Difference]: Finished difference Result 17222 states and 69474 transitions. [2022-11-26 00:03:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:20,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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 26 [2022-11-26 00:03:20,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:20,443 INFO L225 Difference]: With dead ends: 17222 [2022-11-26 00:03:20,443 INFO L226 Difference]: Without dead ends: 17222 [2022-11-26 00:03:20,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:03:20,444 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 68 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:20,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 92 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:03:20,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17222 states. [2022-11-26 00:03:20,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17222 to 13132. [2022-11-26 00:03:20,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13132 states, 13127 states have (on average 4.14504456463777) internal successors, (54412), 13131 states have internal predecessors, (54412), 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 00:03:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13132 states to 13132 states and 54412 transitions. [2022-11-26 00:03:21,003 INFO L78 Accepts]: Start accepts. Automaton has 13132 states and 54412 transitions. Word has length 26 [2022-11-26 00:03:21,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:21,004 INFO L495 AbstractCegarLoop]: Abstraction has 13132 states and 54412 transitions. [2022-11-26 00:03:21,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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 00:03:21,005 INFO L276 IsEmpty]: Start isEmpty. Operand 13132 states and 54412 transitions. [2022-11-26 00:03:21,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-26 00:03:21,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:21,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:21,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:03:21,023 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:21,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:21,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1145218171, now seen corresponding path program 1 times [2022-11-26 00:03:21,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:21,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772955537] [2022-11-26 00:03:21,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:21,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:21,470 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 00:03:21,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:21,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772955537] [2022-11-26 00:03:21,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772955537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:21,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:21,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:03:21,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410012674] [2022-11-26 00:03:21,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:21,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:03:21,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:21,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:03:21,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:03:21,473 INFO L87 Difference]: Start difference. First operand 13132 states and 54412 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 00:03:22,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:22,085 INFO L93 Difference]: Finished difference Result 12677 states and 52306 transitions. [2022-11-26 00:03:22,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:03:22,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 28 [2022-11-26 00:03:22,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:22,151 INFO L225 Difference]: With dead ends: 12677 [2022-11-26 00:03:22,151 INFO L226 Difference]: Without dead ends: 12677 [2022-11-26 00:03:22,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:03:22,152 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 152 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:22,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 116 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:03:22,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12677 states. [2022-11-26 00:03:22,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12677 to 10069. [2022-11-26 00:03:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10069 states, 10065 states have (on average 4.100347739692002) internal successors, (41270), 10068 states have internal predecessors, (41270), 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 00:03:22,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10069 states to 10069 states and 41270 transitions. [2022-11-26 00:03:22,725 INFO L78 Accepts]: Start accepts. Automaton has 10069 states and 41270 transitions. Word has length 28 [2022-11-26 00:03:22,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:22,725 INFO L495 AbstractCegarLoop]: Abstraction has 10069 states and 41270 transitions. [2022-11-26 00:03:22,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 00:03:22,726 INFO L276 IsEmpty]: Start isEmpty. Operand 10069 states and 41270 transitions. [2022-11-26 00:03:22,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-26 00:03:22,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:22,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:22,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:03:22,751 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:22,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:22,752 INFO L85 PathProgramCache]: Analyzing trace with hash -758070583, now seen corresponding path program 1 times [2022-11-26 00:03:22,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:22,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588292608] [2022-11-26 00:03:22,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:22,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:23,105 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 00:03:23,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:23,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588292608] [2022-11-26 00:03:23,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588292608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:23,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:23,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:03:23,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566915628] [2022-11-26 00:03:23,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:23,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:03:23,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:23,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:03:23,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:03:23,107 INFO L87 Difference]: Start difference. First operand 10069 states and 41270 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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 00:03:23,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:23,469 INFO L93 Difference]: Finished difference Result 12046 states and 47522 transitions. [2022-11-26 00:03:23,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:23,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2022-11-26 00:03:23,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:23,514 INFO L225 Difference]: With dead ends: 12046 [2022-11-26 00:03:23,514 INFO L226 Difference]: Without dead ends: 12046 [2022-11-26 00:03:23,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:03:23,515 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 52 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:23,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 75 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:03:23,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12046 states. [2022-11-26 00:03:23,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12046 to 10781. [2022-11-26 00:03:23,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10781 states, 10777 states have (on average 4.048807645912592) internal successors, (43634), 10780 states have internal predecessors, (43634), 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 00:03:23,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10781 states to 10781 states and 43634 transitions. [2022-11-26 00:03:23,838 INFO L78 Accepts]: Start accepts. Automaton has 10781 states and 43634 transitions. Word has length 36 [2022-11-26 00:03:23,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:23,840 INFO L495 AbstractCegarLoop]: Abstraction has 10781 states and 43634 transitions. [2022-11-26 00:03:23,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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 00:03:23,840 INFO L276 IsEmpty]: Start isEmpty. Operand 10781 states and 43634 transitions. [2022-11-26 00:03:23,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-26 00:03:23,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:23,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:23,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:03:23,864 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:23,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:23,864 INFO L85 PathProgramCache]: Analyzing trace with hash -306225684, now seen corresponding path program 1 times [2022-11-26 00:03:23,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:23,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998976448] [2022-11-26 00:03:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:23,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:24,443 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 00:03:24,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:24,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998976448] [2022-11-26 00:03:24,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998976448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:24,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:24,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:03:24,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202500223] [2022-11-26 00:03:24,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:24,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:03:24,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:24,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:03:24,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:03:24,446 INFO L87 Difference]: Start difference. First operand 10781 states and 43634 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 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 00:03:24,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:24,852 INFO L93 Difference]: Finished difference Result 10648 states and 43118 transitions. [2022-11-26 00:03:24,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:03:24,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 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 38 [2022-11-26 00:03:24,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:24,880 INFO L225 Difference]: With dead ends: 10648 [2022-11-26 00:03:24,880 INFO L226 Difference]: Without dead ends: 10648 [2022-11-26 00:03:24,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:03:24,881 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 166 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:24,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 103 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:03:24,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10648 states. [2022-11-26 00:03:25,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10648 to 9880. [2022-11-26 00:03:25,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9880 states, 9877 states have (on average 4.096183051533867) internal successors, (40458), 9879 states have internal predecessors, (40458), 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 00:03:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9880 states to 9880 states and 40458 transitions. [2022-11-26 00:03:25,103 INFO L78 Accepts]: Start accepts. Automaton has 9880 states and 40458 transitions. Word has length 38 [2022-11-26 00:03:25,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:25,104 INFO L495 AbstractCegarLoop]: Abstraction has 9880 states and 40458 transitions. [2022-11-26 00:03:25,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 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 00:03:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 9880 states and 40458 transitions. [2022-11-26 00:03:25,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-26 00:03:25,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:25,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:25,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:03:25,122 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:25,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:25,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1625335389, now seen corresponding path program 1 times [2022-11-26 00:03:25,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:25,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114002047] [2022-11-26 00:03:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:25,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:25,522 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 00:03:25,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:25,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114002047] [2022-11-26 00:03:25,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114002047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:25,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:25,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:03:25,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466453844] [2022-11-26 00:03:25,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:25,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:03:25,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:25,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:03:25,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:03:25,524 INFO L87 Difference]: Start difference. First operand 9880 states and 40458 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 00:03:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:25,847 INFO L93 Difference]: Finished difference Result 10386 states and 41714 transitions. [2022-11-26 00:03:25,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:25,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2022-11-26 00:03:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:25,874 INFO L225 Difference]: With dead ends: 10386 [2022-11-26 00:03:25,874 INFO L226 Difference]: Without dead ends: 10386 [2022-11-26 00:03:25,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:03:25,875 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 46 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:25,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 70 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:03:25,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10386 states. [2022-11-26 00:03:26,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10386 to 10060. [2022-11-26 00:03:26,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10060 states, 10057 states have (on average 4.066222531570051) internal successors, (40894), 10059 states have internal predecessors, (40894), 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 00:03:26,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10060 states to 10060 states and 40894 transitions. [2022-11-26 00:03:26,111 INFO L78 Accepts]: Start accepts. Automaton has 10060 states and 40894 transitions. Word has length 46 [2022-11-26 00:03:26,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:26,111 INFO L495 AbstractCegarLoop]: Abstraction has 10060 states and 40894 transitions. [2022-11-26 00:03:26,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 00:03:26,111 INFO L276 IsEmpty]: Start isEmpty. Operand 10060 states and 40894 transitions. [2022-11-26 00:03:26,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-26 00:03:26,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:26,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:26,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:03:26,130 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:26,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1625311995, now seen corresponding path program 1 times [2022-11-26 00:03:26,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:26,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186337890] [2022-11-26 00:03:26,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:26,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:26,629 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 00:03:26,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:26,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186337890] [2022-11-26 00:03:26,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186337890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:26,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:26,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:03:26,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491139852] [2022-11-26 00:03:26,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:26,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:03:26,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:26,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:03:26,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:03:26,631 INFO L87 Difference]: Start difference. First operand 10060 states and 40894 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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 00:03:27,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:27,156 INFO L93 Difference]: Finished difference Result 10025 states and 40784 transitions. [2022-11-26 00:03:27,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:03:27,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-11-26 00:03:27,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:27,193 INFO L225 Difference]: With dead ends: 10025 [2022-11-26 00:03:27,193 INFO L226 Difference]: Without dead ends: 10025 [2022-11-26 00:03:27,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:03:27,194 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 116 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:27,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 112 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:03:27,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10025 states. [2022-11-26 00:03:27,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10025 to 9817. [2022-11-26 00:03:27,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9817 states, 9815 states have (on average 4.098624554253694) internal successors, (40228), 9816 states have internal predecessors, (40228), 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 00:03:27,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9817 states to 9817 states and 40228 transitions. [2022-11-26 00:03:27,404 INFO L78 Accepts]: Start accepts. Automaton has 9817 states and 40228 transitions. Word has length 48 [2022-11-26 00:03:27,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:27,404 INFO L495 AbstractCegarLoop]: Abstraction has 9817 states and 40228 transitions. [2022-11-26 00:03:27,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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 00:03:27,404 INFO L276 IsEmpty]: Start isEmpty. Operand 9817 states and 40228 transitions. [2022-11-26 00:03:27,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-26 00:03:27,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:27,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:27,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:03:27,422 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:27,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:27,422 INFO L85 PathProgramCache]: Analyzing trace with hash -250145665, now seen corresponding path program 1 times [2022-11-26 00:03:27,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:27,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418751081] [2022-11-26 00:03:27,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:27,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:27,791 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 00:03:27,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:27,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418751081] [2022-11-26 00:03:27,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418751081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:27,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:27,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:03:27,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210489859] [2022-11-26 00:03:27,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:27,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:03:27,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:27,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:03:27,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:03:27,794 INFO L87 Difference]: Start difference. First operand 9817 states and 40228 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:28,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:28,049 INFO L93 Difference]: Finished difference Result 9866 states and 40296 transitions. [2022-11-26 00:03:28,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:28,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-11-26 00:03:28,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:28,084 INFO L225 Difference]: With dead ends: 9866 [2022-11-26 00:03:28,084 INFO L226 Difference]: Without dead ends: 8870 [2022-11-26 00:03:28,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:03:28,085 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 20 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:28,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 59 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:03:28,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8870 states. [2022-11-26 00:03:28,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8870 to 8855. [2022-11-26 00:03:28,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8855 states, 8853 states have (on average 4.014571331751949) internal successors, (35541), 8854 states have internal predecessors, (35541), 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 00:03:28,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8855 states to 8855 states and 35541 transitions. [2022-11-26 00:03:28,457 INFO L78 Accepts]: Start accepts. Automaton has 8855 states and 35541 transitions. Word has length 56 [2022-11-26 00:03:28,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:28,458 INFO L495 AbstractCegarLoop]: Abstraction has 8855 states and 35541 transitions. [2022-11-26 00:03:28,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:28,458 INFO L276 IsEmpty]: Start isEmpty. Operand 8855 states and 35541 transitions. [2022-11-26 00:03:28,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-26 00:03:28,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:28,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:28,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:03:28,480 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:28,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:28,481 INFO L85 PathProgramCache]: Analyzing trace with hash -724582446, now seen corresponding path program 1 times [2022-11-26 00:03:28,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:28,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13518717] [2022-11-26 00:03:28,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:28,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:28,973 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 00:03:28,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:28,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13518717] [2022-11-26 00:03:28,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13518717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:28,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:28,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:03:28,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43681785] [2022-11-26 00:03:28,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:28,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:03:28,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:28,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:03:28,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:03:28,975 INFO L87 Difference]: Start difference. First operand 8855 states and 35541 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 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 00:03:29,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:29,385 INFO L93 Difference]: Finished difference Result 8848 states and 35523 transitions. [2022-11-26 00:03:29,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:03:29,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 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 58 [2022-11-26 00:03:29,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:29,404 INFO L225 Difference]: With dead ends: 8848 [2022-11-26 00:03:29,404 INFO L226 Difference]: Without dead ends: 6783 [2022-11-26 00:03:29,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:03:29,405 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:29,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 112 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:03:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6783 states. [2022-11-26 00:03:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6783 to 6763. [2022-11-26 00:03:29,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6763 states, 6762 states have (on average 3.920141969831411) internal successors, (26508), 6762 states have internal predecessors, (26508), 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 00:03:29,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6763 states to 6763 states and 26508 transitions. [2022-11-26 00:03:29,610 INFO L78 Accepts]: Start accepts. Automaton has 6763 states and 26508 transitions. Word has length 58 [2022-11-26 00:03:29,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:29,610 INFO L495 AbstractCegarLoop]: Abstraction has 6763 states and 26508 transitions. [2022-11-26 00:03:29,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 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 00:03:29,610 INFO L276 IsEmpty]: Start isEmpty. Operand 6763 states and 26508 transitions. [2022-11-26 00:03:29,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-26 00:03:29,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:29,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:29,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:03:29,624 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:29,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:29,625 INFO L85 PathProgramCache]: Analyzing trace with hash 37387133, now seen corresponding path program 1 times [2022-11-26 00:03:29,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:29,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084914420] [2022-11-26 00:03:29,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:29,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:31,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:31,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:31,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084914420] [2022-11-26 00:03:31,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084914420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:31,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:31,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:03:31,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312083136] [2022-11-26 00:03:31,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:31,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:03:31,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:31,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:03:31,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:03:31,745 INFO L87 Difference]: Start difference. First operand 6763 states and 26508 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:33,162 INFO L93 Difference]: Finished difference Result 11067 states and 42606 transitions. [2022-11-26 00:03:33,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:03:33,162 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-26 00:03:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:33,185 INFO L225 Difference]: With dead ends: 11067 [2022-11-26 00:03:33,185 INFO L226 Difference]: Without dead ends: 9120 [2022-11-26 00:03:33,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:03:33,186 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 311 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:33,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 215 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:03:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9120 states. [2022-11-26 00:03:33,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9120 to 6762. [2022-11-26 00:03:33,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6762 states, 6761 states have (on average 3.920425972489277) internal successors, (26506), 6761 states have internal predecessors, (26506), 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 00:03:33,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6762 states to 6762 states and 26506 transitions. [2022-11-26 00:03:33,329 INFO L78 Accepts]: Start accepts. Automaton has 6762 states and 26506 transitions. Word has length 67 [2022-11-26 00:03:33,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:33,329 INFO L495 AbstractCegarLoop]: Abstraction has 6762 states and 26506 transitions. [2022-11-26 00:03:33,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand 6762 states and 26506 transitions. [2022-11-26 00:03:33,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-26 00:03:33,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:33,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:33,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:03:33,342 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:33,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:33,343 INFO L85 PathProgramCache]: Analyzing trace with hash -344760915, now seen corresponding path program 2 times [2022-11-26 00:03:33,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:33,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466594239] [2022-11-26 00:03:33,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:33,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:36,198 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 00:03:36,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:36,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466594239] [2022-11-26 00:03:36,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466594239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:36,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:36,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:03:36,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761135780] [2022-11-26 00:03:36,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:36,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:03:36,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:36,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:03:36,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:03:36,203 INFO L87 Difference]: Start difference. First operand 6762 states and 26506 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:37,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:37,649 INFO L93 Difference]: Finished difference Result 11509 states and 44842 transitions. [2022-11-26 00:03:37,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:03:37,650 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-26 00:03:37,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:37,682 INFO L225 Difference]: With dead ends: 11509 [2022-11-26 00:03:37,682 INFO L226 Difference]: Without dead ends: 10539 [2022-11-26 00:03:37,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:03:37,683 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 288 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:37,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 212 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:03:37,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-11-26 00:03:37,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 6755. [2022-11-26 00:03:37,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6755 states, 6754 states have (on average 3.922712466686408) internal successors, (26494), 6754 states have internal predecessors, (26494), 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 00:03:37,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6755 states to 6755 states and 26494 transitions. [2022-11-26 00:03:37,899 INFO L78 Accepts]: Start accepts. Automaton has 6755 states and 26494 transitions. Word has length 67 [2022-11-26 00:03:37,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:37,899 INFO L495 AbstractCegarLoop]: Abstraction has 6755 states and 26494 transitions. [2022-11-26 00:03:37,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:37,899 INFO L276 IsEmpty]: Start isEmpty. Operand 6755 states and 26494 transitions. [2022-11-26 00:03:37,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-26 00:03:37,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:37,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:37,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:03:37,916 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:37,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:37,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1946348131, now seen corresponding path program 3 times [2022-11-26 00:03:37,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:37,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188372270] [2022-11-26 00:03:37,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:37,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:40,666 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 00:03:40,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:40,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188372270] [2022-11-26 00:03:40,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188372270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:40,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:40,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:03:40,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631531803] [2022-11-26 00:03:40,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:40,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:03:40,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:40,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:03:40,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:03:40,669 INFO L87 Difference]: Start difference. First operand 6755 states and 26494 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:42,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:42,360 INFO L93 Difference]: Finished difference Result 10538 states and 40751 transitions. [2022-11-26 00:03:42,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:03:42,361 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-26 00:03:42,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:42,392 INFO L225 Difference]: With dead ends: 10538 [2022-11-26 00:03:42,392 INFO L226 Difference]: Without dead ends: 9560 [2022-11-26 00:03:42,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:03:42,393 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 300 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:42,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 282 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:03:42,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9560 states. [2022-11-26 00:03:42,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9560 to 6755. [2022-11-26 00:03:42,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6755 states, 6754 states have (on average 3.921676043825881) internal successors, (26487), 6754 states have internal predecessors, (26487), 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 00:03:42,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6755 states to 6755 states and 26487 transitions. [2022-11-26 00:03:42,596 INFO L78 Accepts]: Start accepts. Automaton has 6755 states and 26487 transitions. Word has length 67 [2022-11-26 00:03:42,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:42,596 INFO L495 AbstractCegarLoop]: Abstraction has 6755 states and 26487 transitions. [2022-11-26 00:03:42,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:42,597 INFO L276 IsEmpty]: Start isEmpty. Operand 6755 states and 26487 transitions. [2022-11-26 00:03:42,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-26 00:03:42,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:42,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:42,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-26 00:03:42,613 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:42,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:42,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1010445113, now seen corresponding path program 4 times [2022-11-26 00:03:42,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:42,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635094543] [2022-11-26 00:03:42,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:42,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:45,838 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 00:03:45,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:45,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635094543] [2022-11-26 00:03:45,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635094543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:45,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:45,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:03:45,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547123102] [2022-11-26 00:03:45,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:45,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:03:45,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:45,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:03:45,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:03:45,841 INFO L87 Difference]: Start difference. First operand 6755 states and 26487 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:47,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:47,019 INFO L93 Difference]: Finished difference Result 12024 states and 46665 transitions. [2022-11-26 00:03:47,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:03:47,019 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-26 00:03:47,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:47,056 INFO L225 Difference]: With dead ends: 12024 [2022-11-26 00:03:47,056 INFO L226 Difference]: Without dead ends: 11054 [2022-11-26 00:03:47,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-26 00:03:47,057 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 287 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:47,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 163 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:03:47,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11054 states. [2022-11-26 00:03:47,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11054 to 6755. [2022-11-26 00:03:47,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6755 states, 6754 states have (on average 3.921676043825881) internal successors, (26487), 6754 states have internal predecessors, (26487), 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 00:03:47,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6755 states to 6755 states and 26487 transitions. [2022-11-26 00:03:47,284 INFO L78 Accepts]: Start accepts. Automaton has 6755 states and 26487 transitions. Word has length 67 [2022-11-26 00:03:47,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:47,285 INFO L495 AbstractCegarLoop]: Abstraction has 6755 states and 26487 transitions. [2022-11-26 00:03:47,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:47,285 INFO L276 IsEmpty]: Start isEmpty. Operand 6755 states and 26487 transitions. [2022-11-26 00:03:47,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-26 00:03:47,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:47,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:47,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-26 00:03:47,302 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:47,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:47,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1280663933, now seen corresponding path program 5 times [2022-11-26 00:03:47,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:47,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006147825] [2022-11-26 00:03:47,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:47,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:49,757 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 00:03:49,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:49,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006147825] [2022-11-26 00:03:49,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006147825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:49,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:49,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:03:49,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688451395] [2022-11-26 00:03:49,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:49,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:03:49,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:49,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:03:49,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:03:49,760 INFO L87 Difference]: Start difference. First operand 6755 states and 26487 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:51,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:51,334 INFO L93 Difference]: Finished difference Result 11053 states and 42574 transitions. [2022-11-26 00:03:51,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:03:51,335 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-26 00:03:51,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:51,364 INFO L225 Difference]: With dead ends: 11053 [2022-11-26 00:03:51,364 INFO L226 Difference]: Without dead ends: 9105 [2022-11-26 00:03:51,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-11-26 00:03:51,365 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 296 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:51,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 254 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:03:51,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9105 states. [2022-11-26 00:03:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9105 to 6747. [2022-11-26 00:03:51,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 3.924251408241921) internal successors, (26473), 6746 states have internal predecessors, (26473), 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 00:03:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 26473 transitions. [2022-11-26 00:03:51,576 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 26473 transitions. Word has length 67 [2022-11-26 00:03:51,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:51,576 INFO L495 AbstractCegarLoop]: Abstraction has 6747 states and 26473 transitions. [2022-11-26 00:03:51,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 26473 transitions. [2022-11-26 00:03:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-26 00:03:51,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:51,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:51,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-26 00:03:51,593 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-26 00:03:51,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:51,593 INFO L85 PathProgramCache]: Analyzing trace with hash 845909123, now seen corresponding path program 6 times [2022-11-26 00:03:51,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:51,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142695996] [2022-11-26 00:03:51,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:51,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat