./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.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_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/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_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/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_1b606c67-f343-4001-b7e3-a09296527001/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 b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:15:17,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:15:17,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:15:17,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:15:17,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:15:17,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:15:17,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:15:17,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:15:17,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:15:17,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:15:17,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:15:17,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:15:17,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:15:17,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:15:17,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:15:17,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:15:17,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:15:17,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:15:17,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:15:17,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:15:17,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:15:17,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:15:17,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:15:17,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:15:17,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:15:17,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:15:17,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:15:17,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:15:17,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:15:17,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:15:17,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:15:17,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:15:17,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:15:17,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:15:17,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:15:17,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:15:17,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:15:17,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:15:17,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:15:17,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:15:17,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:15:17,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-25 23:15:17,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:15:17,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:15:17,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:15:17,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:15:17,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:15:17,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:15:17,506 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:15:17,506 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:15:17,506 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:15:17,506 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:15:17,507 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:15:17,508 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:15:17,508 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:15:17,508 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:15:17,508 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:15:17,509 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:15:17,509 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:15:17,509 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:15:17,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:15:17,510 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:15:17,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:15:17,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:15:17,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:15:17,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:15:17,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:15:17,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:15:17,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:15:17,512 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 23:15:17,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:15:17,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:15:17,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:15:17,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:15:17,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:15:17,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:15:17,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:15:17,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:15:17,515 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:15:17,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:15:17,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:15:17,516 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:15:17,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:15:17,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:15:17,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:15:17,516 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_1b606c67-f343-4001-b7e3-a09296527001/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2022-11-25 23:15:17,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:15:17,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:15:17,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:15:17,828 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:15:17,829 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:15:17,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2022-11-25 23:15:20,991 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:15:21,275 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:15:21,276 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2022-11-25 23:15:21,301 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur/data/0b541f78e/45cf430dff404c1081f72412ba9df6fa/FLAGd7ee16030 [2022-11-25 23:15:21,323 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur/data/0b541f78e/45cf430dff404c1081f72412ba9df6fa [2022-11-25 23:15:21,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:15:21,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:15:21,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:15:21,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:15:21,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:15:21,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:15:21" (1/1) ... [2022-11-25 23:15:21,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f12c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:21, skipping insertion in model container [2022-11-25 23:15:21,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:15:21" (1/1) ... [2022-11-25 23:15:21,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:15:21,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:15:21,677 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:15:22,007 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_1b606c67-f343-4001-b7e3-a09296527001/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-25 23:15:22,010 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_1b606c67-f343-4001-b7e3-a09296527001/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-25 23:15:22,011 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_1b606c67-f343-4001-b7e3-a09296527001/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-25 23:15:22,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:15:22,034 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:15:22,052 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:15:22,104 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_1b606c67-f343-4001-b7e3-a09296527001/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-25 23:15:22,105 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_1b606c67-f343-4001-b7e3-a09296527001/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-25 23:15:22,106 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_1b606c67-f343-4001-b7e3-a09296527001/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-25 23:15:22,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:15:22,174 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:15:22,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22 WrapperNode [2022-11-25 23:15:22,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:15:22,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:15:22,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:15:22,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:15:22,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,279 INFO L138 Inliner]: procedures = 224, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 220 [2022-11-25 23:15:22,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:15:22,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:15:22,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:15:22,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:15:22,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:15:22,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:15:22,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:15:22,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:15:22,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (1/1) ... [2022-11-25 23:15:22,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:15:22,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:15:22,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:15:22,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b606c67-f343-4001-b7e3-a09296527001/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:15:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2022-11-25 23:15:22,467 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2022-11-25 23:15:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:15:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:15:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:15:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:15:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:15:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:15:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:15:22,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:15:22,470 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:15:22,666 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:15:22,668 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:15:23,338 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:15:23,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:15:23,348 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 23:15:23,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:15:23 BoogieIcfgContainer [2022-11-25 23:15:23,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:15:23,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:15:23,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:15:23,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:15:23,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:15:21" (1/3) ... [2022-11-25 23:15:23,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef8f3f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:15:23, skipping insertion in model container [2022-11-25 23:15:23,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:22" (2/3) ... [2022-11-25 23:15:23,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef8f3f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:15:23, skipping insertion in model container [2022-11-25 23:15:23,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:15:23" (3/3) ... [2022-11-25 23:15:23,382 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2022-11-25 23:15:23,391 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 23:15:23,415 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:15:23,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-25 23:15:23,416 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:15:23,556 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 23:15:23,602 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:15:23,628 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 267 transitions, 542 flow [2022-11-25 23:15:23,636 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 267 transitions, 542 flow [2022-11-25 23:15:23,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 267 transitions, 542 flow [2022-11-25 23:15:23,837 INFO L130 PetriNetUnfolder]: 10/266 cut-off events. [2022-11-25 23:15:23,838 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 23:15:23,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 266 events. 10/266 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 535 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2022-11-25 23:15:23,858 INFO L119 LiptonReduction]: Number of co-enabled transitions 21228 [2022-11-25 23:15:38,718 INFO L134 LiptonReduction]: Checked pairs total: 138050 [2022-11-25 23:15:38,718 INFO L136 LiptonReduction]: Total number of compositions: 181 [2022-11-25 23:15:38,727 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 118 places, 120 transitions, 248 flow [2022-11-25 23:15:38,836 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:38,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:15:38,863 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;@4c7bc7f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:15:38,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-25 23:15:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:38,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 23:15:38,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:38,878 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 23:15:38,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:38,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:38,884 INFO L85 PathProgramCache]: Analyzing trace with hash 914, now seen corresponding path program 1 times [2022-11-25 23:15:38,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:38,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334320217] [2022-11-25 23:15:38,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:38,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:39,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:39,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334320217] [2022-11-25 23:15:39,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334320217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:39,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:39,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 23:15:39,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205379528] [2022-11-25 23:15:39,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:39,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:15:39,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:39,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:15:39,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:15:39,095 INFO L87 Difference]: Start difference. First operand has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:39,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:39,232 INFO L93 Difference]: Finished difference Result 2959 states and 6025 transitions. [2022-11-25 23:15:39,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:15:39,235 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-25 23:15:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:39,271 INFO L225 Difference]: With dead ends: 2959 [2022-11-25 23:15:39,272 INFO L226 Difference]: Without dead ends: 2959 [2022-11-25 23:15:39,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:15:39,277 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:39,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:15:39,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2022-11-25 23:15:39,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2959. [2022-11-25 23:15:39,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2959 states, 2888 states have (on average 2.086218836565097) internal successors, (6025), 2958 states have internal predecessors, (6025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:39,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 6025 transitions. [2022-11-25 23:15:39,499 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 6025 transitions. Word has length 1 [2022-11-25 23:15:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:39,500 INFO L495 AbstractCegarLoop]: Abstraction has 2959 states and 6025 transitions. [2022-11-25 23:15:39,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:39,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 6025 transitions. [2022-11-25 23:15:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:15:39,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:39,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:39,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:15:39,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:39,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:39,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2014241161, now seen corresponding path program 1 times [2022-11-25 23:15:39,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:39,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933610346] [2022-11-25 23:15:39,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:39,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:39,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:39,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:39,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933610346] [2022-11-25 23:15:39,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933610346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:39,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:39,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:15:39,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879104956] [2022-11-25 23:15:39,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:39,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:15:39,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:39,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:15:39,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:39,775 INFO L87 Difference]: Start difference. First operand 2959 states and 6025 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:39,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:39,948 INFO L93 Difference]: Finished difference Result 5453 states and 11114 transitions. [2022-11-25 23:15:39,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:15:39,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 23:15:39,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:39,982 INFO L225 Difference]: With dead ends: 5453 [2022-11-25 23:15:39,982 INFO L226 Difference]: Without dead ends: 5453 [2022-11-25 23:15:39,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:39,984 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 102 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:39,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 226 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:15:40,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-11-25 23:15:40,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 3017. [2022-11-25 23:15:40,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 2946 states have (on average 2.0848608282416836) internal successors, (6142), 3016 states have internal predecessors, (6142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:40,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 6142 transitions. [2022-11-25 23:15:40,097 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 6142 transitions. Word has length 9 [2022-11-25 23:15:40,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:40,098 INFO L495 AbstractCegarLoop]: Abstraction has 3017 states and 6142 transitions. [2022-11-25 23:15:40,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:40,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 6142 transitions. [2022-11-25 23:15:40,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:15:40,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:40,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:40,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:15:40,100 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:40,101 INFO L85 PathProgramCache]: Analyzing trace with hash 253291591, now seen corresponding path program 1 times [2022-11-25 23:15:40,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:40,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227607229] [2022-11-25 23:15:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:40,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:40,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:40,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:40,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227607229] [2022-11-25 23:15:40,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227607229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:40,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:40,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:15:40,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274365764] [2022-11-25 23:15:40,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:40,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:15:40,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:40,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:15:40,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:15:40,524 INFO L87 Difference]: Start difference. First operand 3017 states and 6142 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:41,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:41,568 INFO L93 Difference]: Finished difference Result 5364 states and 10935 transitions. [2022-11-25 23:15:41,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:15:41,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 23:15:41,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:41,593 INFO L225 Difference]: With dead ends: 5364 [2022-11-25 23:15:41,594 INFO L226 Difference]: Without dead ends: 5364 [2022-11-25 23:15:41,594 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 [2022-11-25 23:15:41,595 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 153 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:41,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 91 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:15:41,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2022-11-25 23:15:41,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 3413. [2022-11-25 23:15:41,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3342 states have (on average 2.0771992818671454) internal successors, (6942), 3412 states have internal predecessors, (6942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 6942 transitions. [2022-11-25 23:15:41,714 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 6942 transitions. Word has length 10 [2022-11-25 23:15:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:41,714 INFO L495 AbstractCegarLoop]: Abstraction has 3413 states and 6942 transitions. [2022-11-25 23:15:41,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 6942 transitions. [2022-11-25 23:15:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:15:41,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:41,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:41,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:15:41,717 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:41,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:41,717 INFO L85 PathProgramCache]: Analyzing trace with hash 185305687, now seen corresponding path program 1 times [2022-11-25 23:15:41,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:41,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384301331] [2022-11-25 23:15:41,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:41,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:42,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:42,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384301331] [2022-11-25 23:15:42,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384301331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:42,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:42,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:15:42,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130961901] [2022-11-25 23:15:42,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:42,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:15:42,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:42,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:15:42,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:15:42,041 INFO L87 Difference]: Start difference. First operand 3413 states and 6942 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:43,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:43,063 INFO L93 Difference]: Finished difference Result 5250 states and 10704 transitions. [2022-11-25 23:15:43,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:15:43,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 23:15:43,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:43,088 INFO L225 Difference]: With dead ends: 5250 [2022-11-25 23:15:43,088 INFO L226 Difference]: Without dead ends: 5250 [2022-11-25 23:15:43,088 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 [2022-11-25 23:15:43,089 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 119 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:43,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 112 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 23:15:43,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5250 states. [2022-11-25 23:15:43,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5250 to 4040. [2022-11-25 23:15:43,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4040 states, 3975 states have (on average 2.0649056603773586) internal successors, (8208), 4039 states have internal predecessors, (8208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:43,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 8208 transitions. [2022-11-25 23:15:43,253 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 8208 transitions. Word has length 10 [2022-11-25 23:15:43,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:43,253 INFO L495 AbstractCegarLoop]: Abstraction has 4040 states and 8208 transitions. [2022-11-25 23:15:43,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:43,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 8208 transitions. [2022-11-25 23:15:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 23:15:43,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:43,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:43,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:15:43,256 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:43,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:43,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1131594322, now seen corresponding path program 1 times [2022-11-25 23:15:43,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:43,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125185757] [2022-11-25 23:15:43,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:43,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:43,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:43,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125185757] [2022-11-25 23:15:43,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125185757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:43,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:43,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:15:43,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313132570] [2022-11-25 23:15:43,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:43,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:15:43,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:43,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:15:43,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:15:43,490 INFO L87 Difference]: Start difference. First operand 4040 states and 8208 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:44,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:44,502 INFO L93 Difference]: Finished difference Result 5573 states and 11371 transitions. [2022-11-25 23:15:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:15:44,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-11-25 23:15:44,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:44,523 INFO L225 Difference]: With dead ends: 5573 [2022-11-25 23:15:44,523 INFO L226 Difference]: Without dead ends: 5562 [2022-11-25 23:15:44,524 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 [2022-11-25 23:15:44,524 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 109 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:44,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 123 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 23:15:44,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2022-11-25 23:15:44,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 4371. [2022-11-25 23:15:44,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 4312 states have (on average 2.0693413729128016) internal successors, (8923), 4370 states have internal predecessors, (8923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:44,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 8923 transitions. [2022-11-25 23:15:44,741 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 8923 transitions. Word has length 16 [2022-11-25 23:15:44,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:44,741 INFO L495 AbstractCegarLoop]: Abstraction has 4371 states and 8923 transitions. [2022-11-25 23:15:44,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:44,742 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 8923 transitions. [2022-11-25 23:15:44,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 23:15:44,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:44,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:44,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:15:44,746 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:44,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:44,747 INFO L85 PathProgramCache]: Analyzing trace with hash -52229361, now seen corresponding path program 1 times [2022-11-25 23:15:44,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:44,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310962555] [2022-11-25 23:15:44,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:44,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:44,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:44,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:44,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310962555] [2022-11-25 23:15:44,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310962555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:44,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:44,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:15:44,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859891569] [2022-11-25 23:15:44,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:44,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:15:44,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:44,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:15:44,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:15:44,959 INFO L87 Difference]: Start difference. First operand 4371 states and 8923 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:45,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:45,771 INFO L93 Difference]: Finished difference Result 5800 states and 11867 transitions. [2022-11-25 23:15:45,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:15:45,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-11-25 23:15:45,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:45,794 INFO L225 Difference]: With dead ends: 5800 [2022-11-25 23:15:45,794 INFO L226 Difference]: Without dead ends: 5800 [2022-11-25 23:15:45,795 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 [2022-11-25 23:15:45,795 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 132 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:45,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 116 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:15:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-11-25 23:15:45,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 4562. [2022-11-25 23:15:45,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4562 states, 4507 states have (on average 2.0769913467938763) internal successors, (9361), 4561 states have internal predecessors, (9361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 9361 transitions. [2022-11-25 23:15:45,927 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 9361 transitions. Word has length 16 [2022-11-25 23:15:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:45,927 INFO L495 AbstractCegarLoop]: Abstraction has 4562 states and 9361 transitions. [2022-11-25 23:15:45,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 9361 transitions. [2022-11-25 23:15:45,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 23:15:45,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:45,930 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] [2022-11-25 23:15:45,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:15:45,930 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:45,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:45,931 INFO L85 PathProgramCache]: Analyzing trace with hash -672259527, now seen corresponding path program 1 times [2022-11-25 23:15:45,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:45,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485207062] [2022-11-25 23:15:45,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:45,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:46,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:46,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485207062] [2022-11-25 23:15:46,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485207062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:46,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:46,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:15:46,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565968631] [2022-11-25 23:15:46,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:46,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:15:46,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:46,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:15:46,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:15:46,349 INFO L87 Difference]: Start difference. First operand 4562 states and 9361 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2022-11-25 23:15:47,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:47,036 INFO L93 Difference]: Finished difference Result 5530 states and 11317 transitions. [2022-11-25 23:15:47,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:15:47,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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 [2022-11-25 23:15:47,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:47,056 INFO L225 Difference]: With dead ends: 5530 [2022-11-25 23:15:47,056 INFO L226 Difference]: Without dead ends: 5530 [2022-11-25 23:15:47,056 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 [2022-11-25 23:15:47,057 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 124 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:47,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 108 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:15:47,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2022-11-25 23:15:47,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 4886. [2022-11-25 23:15:47,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4886 states, 4839 states have (on average 2.06964248811738) internal successors, (10015), 4885 states have internal predecessors, (10015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:47,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4886 states to 4886 states and 10015 transitions. [2022-11-25 23:15:47,207 INFO L78 Accepts]: Start accepts. Automaton has 4886 states and 10015 transitions. Word has length 22 [2022-11-25 23:15:47,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:47,207 INFO L495 AbstractCegarLoop]: Abstraction has 4886 states and 10015 transitions. [2022-11-25 23:15:47,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2022-11-25 23:15:47,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4886 states and 10015 transitions. [2022-11-25 23:15:47,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 23:15:47,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:47,211 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] [2022-11-25 23:15:47,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:15:47,212 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:47,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:47,212 INFO L85 PathProgramCache]: Analyzing trace with hash -828871843, now seen corresponding path program 1 times [2022-11-25 23:15:47,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:47,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721999484] [2022-11-25 23:15:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:47,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:47,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:47,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:47,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721999484] [2022-11-25 23:15:47,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721999484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:47,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:47,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:15:47,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818459284] [2022-11-25 23:15:47,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:47,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:15:47,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:47,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:15:47,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:15:47,644 INFO L87 Difference]: Start difference. First operand 4886 states and 10015 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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) [2022-11-25 23:15:48,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:48,418 INFO L93 Difference]: Finished difference Result 5048 states and 10342 transitions. [2022-11-25 23:15:48,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:15:48,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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 [2022-11-25 23:15:48,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:48,434 INFO L225 Difference]: With dead ends: 5048 [2022-11-25 23:15:48,435 INFO L226 Difference]: Without dead ends: 5048 [2022-11-25 23:15:48,435 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 [2022-11-25 23:15:48,436 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 96 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:48,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 132 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:15:48,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5048 states. [2022-11-25 23:15:48,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5048 to 5048. [2022-11-25 23:15:48,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5048 states, 5005 states have (on average 2.066333666333666) internal successors, (10342), 5047 states have internal predecessors, (10342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5048 states to 5048 states and 10342 transitions. [2022-11-25 23:15:48,551 INFO L78 Accepts]: Start accepts. Automaton has 5048 states and 10342 transitions. Word has length 28 [2022-11-25 23:15:48,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:48,552 INFO L495 AbstractCegarLoop]: Abstraction has 5048 states and 10342 transitions. [2022-11-25 23:15:48,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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) [2022-11-25 23:15:48,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5048 states and 10342 transitions. [2022-11-25 23:15:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 23:15:48,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:48,554 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] [2022-11-25 23:15:48,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:15:48,555 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:48,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:48,555 INFO L85 PathProgramCache]: Analyzing trace with hash 764451322, now seen corresponding path program 1 times [2022-11-25 23:15:48,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:48,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581657103] [2022-11-25 23:15:48,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:48,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:48,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:48,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:48,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581657103] [2022-11-25 23:15:48,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581657103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:48,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:48,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:15:48,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807497546] [2022-11-25 23:15:48,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:48,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:15:48,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:48,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:15:48,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:15:48,868 INFO L87 Difference]: Start difference. First operand 5048 states and 10342 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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) [2022-11-25 23:15:49,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:49,684 INFO L93 Difference]: Finished difference Result 5268 states and 10786 transitions. [2022-11-25 23:15:49,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:15:49,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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 [2022-11-25 23:15:49,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:49,698 INFO L225 Difference]: With dead ends: 5268 [2022-11-25 23:15:49,699 INFO L226 Difference]: Without dead ends: 5268 [2022-11-25 23:15:49,699 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 [2022-11-25 23:15:49,700 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 108 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:49,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 115 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:15:49,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2022-11-25 23:15:49,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 5268. [2022-11-25 23:15:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 5225 states have (on average 2.064306220095694) internal successors, (10786), 5267 states have internal predecessors, (10786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:49,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 10786 transitions. [2022-11-25 23:15:49,811 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 10786 transitions. Word has length 28 [2022-11-25 23:15:49,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:49,812 INFO L495 AbstractCegarLoop]: Abstraction has 5268 states and 10786 transitions. [2022-11-25 23:15:49,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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) [2022-11-25 23:15:49,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 10786 transitions. [2022-11-25 23:15:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:15:49,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:49,815 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] [2022-11-25 23:15:49,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:15:49,815 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:49,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:49,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1664622446, now seen corresponding path program 1 times [2022-11-25 23:15:49,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:49,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261551463] [2022-11-25 23:15:49,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:49,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:15:51,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:51,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261551463] [2022-11-25 23:15:51,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261551463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:51,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:51,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 23:15:51,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306827161] [2022-11-25 23:15:51,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:51,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 23:15:51,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:51,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 23:15:51,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-25 23:15:51,848 INFO L87 Difference]: Start difference. First operand 5268 states and 10786 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:57,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:57,576 INFO L93 Difference]: Finished difference Result 11909 states and 24450 transitions. [2022-11-25 23:15:57,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 23:15:57,577 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 32 [2022-11-25 23:15:57,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:57,612 INFO L225 Difference]: With dead ends: 11909 [2022-11-25 23:15:57,613 INFO L226 Difference]: Without dead ends: 11905 [2022-11-25 23:15:57,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2022-11-25 23:15:57,614 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 802 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 3813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:57,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 260 Invalid, 3813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 3539 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 23:15:57,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11905 states. [2022-11-25 23:15:57,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11905 to 6148. [2022-11-25 23:15:57,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 6105 states have (on average 2.095823095823096) internal successors, (12795), 6147 states have internal predecessors, (12795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:57,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 12795 transitions. [2022-11-25 23:15:57,804 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 12795 transitions. Word has length 32 [2022-11-25 23:15:57,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:57,805 INFO L495 AbstractCegarLoop]: Abstraction has 6148 states and 12795 transitions. [2022-11-25 23:15:57,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:15:57,805 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 12795 transitions. [2022-11-25 23:15:57,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:15:57,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:57,808 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] [2022-11-25 23:15:57,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:15:57,808 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:15:57,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:57,809 INFO L85 PathProgramCache]: Analyzing trace with hash -73521212, now seen corresponding path program 1 times [2022-11-25 23:15:57,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:57,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663842400] [2022-11-25 23:15:57,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:57,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:00,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:16:00,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:00,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663842400] [2022-11-25 23:16:00,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663842400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:00,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:00,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:16:00,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410355770] [2022-11-25 23:16:00,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:00,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:16:00,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:00,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:16:00,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:16:00,018 INFO L87 Difference]: Start difference. First operand 6148 states and 12795 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:04,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:04,876 INFO L93 Difference]: Finished difference Result 10059 states and 20653 transitions. [2022-11-25 23:16:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:16:04,877 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:16:04,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:04,909 INFO L225 Difference]: With dead ends: 10059 [2022-11-25 23:16:04,909 INFO L226 Difference]: Without dead ends: 10059 [2022-11-25 23:16:04,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=220, Invalid=650, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:16:04,911 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1036 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 3762 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 3851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:04,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 940 Invalid, 3851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 3762 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 23:16:04,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10059 states. [2022-11-25 23:16:05,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10059 to 6468. [2022-11-25 23:16:05,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6468 states, 6425 states have (on average 2.0957198443579768) internal successors, (13465), 6467 states have internal predecessors, (13465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:05,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6468 states to 6468 states and 13465 transitions. [2022-11-25 23:16:05,125 INFO L78 Accepts]: Start accepts. Automaton has 6468 states and 13465 transitions. Word has length 32 [2022-11-25 23:16:05,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:05,125 INFO L495 AbstractCegarLoop]: Abstraction has 6468 states and 13465 transitions. [2022-11-25 23:16:05,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:05,125 INFO L276 IsEmpty]: Start isEmpty. Operand 6468 states and 13465 transitions. [2022-11-25 23:16:05,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:16:05,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:05,128 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] [2022-11-25 23:16:05,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:16:05,129 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:16:05,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:05,129 INFO L85 PathProgramCache]: Analyzing trace with hash 605137366, now seen corresponding path program 2 times [2022-11-25 23:16:05,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:05,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614741256] [2022-11-25 23:16:05,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:06,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:16:06,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:06,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614741256] [2022-11-25 23:16:06,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614741256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:06,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:06,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:16:06,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768551177] [2022-11-25 23:16:06,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:06,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:16:06,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:06,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:16:06,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:16:06,682 INFO L87 Difference]: Start difference. First operand 6468 states and 13465 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:12,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:12,702 INFO L93 Difference]: Finished difference Result 17855 states and 37315 transitions. [2022-11-25 23:16:12,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:16:12,702 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:16:12,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:12,748 INFO L225 Difference]: With dead ends: 17855 [2022-11-25 23:16:12,748 INFO L226 Difference]: Without dead ends: 17851 [2022-11-25 23:16:12,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=356, Invalid=904, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:16:12,749 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 851 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 4293 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 4653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 4293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:12,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 901 Invalid, 4653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 4293 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 23:16:12,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17851 states. [2022-11-25 23:16:12,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17851 to 7545. [2022-11-25 23:16:12,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7545 states, 7502 states have (on average 2.1198347107438016) internal successors, (15903), 7544 states have internal predecessors, (15903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:13,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7545 states to 7545 states and 15903 transitions. [2022-11-25 23:16:13,017 INFO L78 Accepts]: Start accepts. Automaton has 7545 states and 15903 transitions. Word has length 32 [2022-11-25 23:16:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:13,017 INFO L495 AbstractCegarLoop]: Abstraction has 7545 states and 15903 transitions. [2022-11-25 23:16:13,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:13,018 INFO L276 IsEmpty]: Start isEmpty. Operand 7545 states and 15903 transitions. [2022-11-25 23:16:13,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:16:13,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:13,023 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] [2022-11-25 23:16:13,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:16:13,025 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:16:13,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:13,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1648611750, now seen corresponding path program 2 times [2022-11-25 23:16:13,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:13,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95305050] [2022-11-25 23:16:13,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:13,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:16:14,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:14,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95305050] [2022-11-25 23:16:14,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95305050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:14,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:14,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:16:14,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947742503] [2022-11-25 23:16:14,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:14,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:16:14,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:14,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:16:14,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:16:14,717 INFO L87 Difference]: Start difference. First operand 7545 states and 15903 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:19,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:19,109 INFO L93 Difference]: Finished difference Result 12851 states and 27013 transitions. [2022-11-25 23:16:19,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 23:16:19,110 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:16:19,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:19,142 INFO L225 Difference]: With dead ends: 12851 [2022-11-25 23:16:19,142 INFO L226 Difference]: Without dead ends: 12851 [2022-11-25 23:16:19,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2022-11-25 23:16:19,143 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 644 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 4453 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 4468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:19,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1086 Invalid, 4468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 4453 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 23:16:19,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12851 states. [2022-11-25 23:16:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12851 to 8211. [2022-11-25 23:16:19,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8211 states, 8168 states have (on average 2.126958863858962) internal successors, (17373), 8210 states have internal predecessors, (17373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:19,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8211 states to 8211 states and 17373 transitions. [2022-11-25 23:16:19,347 INFO L78 Accepts]: Start accepts. Automaton has 8211 states and 17373 transitions. Word has length 32 [2022-11-25 23:16:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:19,348 INFO L495 AbstractCegarLoop]: Abstraction has 8211 states and 17373 transitions. [2022-11-25 23:16:19,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:19,348 INFO L276 IsEmpty]: Start isEmpty. Operand 8211 states and 17373 transitions. [2022-11-25 23:16:19,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:16:19,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:19,356 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] [2022-11-25 23:16:19,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:16:19,356 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:16:19,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:19,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1544592462, now seen corresponding path program 3 times [2022-11-25 23:16:19,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:19,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40065433] [2022-11-25 23:16:19,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:19,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:16:20,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:20,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40065433] [2022-11-25 23:16:20,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40065433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:20,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:20,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:16:20,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269685068] [2022-11-25 23:16:20,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:20,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:16:20,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:20,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:16:20,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:16:20,811 INFO L87 Difference]: Start difference. First operand 8211 states and 17373 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:26,181 INFO L93 Difference]: Finished difference Result 21061 states and 44671 transitions. [2022-11-25 23:16:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 23:16:26,182 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:16:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:26,226 INFO L225 Difference]: With dead ends: 21061 [2022-11-25 23:16:26,226 INFO L226 Difference]: Without dead ends: 21057 [2022-11-25 23:16:26,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=293, Invalid=763, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:16:26,228 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 960 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 3585 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 4069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 3585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:26,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 1026 Invalid, 4069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 3585 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 23:16:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21057 states. [2022-11-25 23:16:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21057 to 10281. [2022-11-25 23:16:26,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10281 states, 10238 states have (on average 2.164387575698379) internal successors, (22159), 10280 states have internal predecessors, (22159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:26,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10281 states to 10281 states and 22159 transitions. [2022-11-25 23:16:26,528 INFO L78 Accepts]: Start accepts. Automaton has 10281 states and 22159 transitions. Word has length 32 [2022-11-25 23:16:26,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:26,528 INFO L495 AbstractCegarLoop]: Abstraction has 10281 states and 22159 transitions. [2022-11-25 23:16:26,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 10281 states and 22159 transitions. [2022-11-25 23:16:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:16:26,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:26,535 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] [2022-11-25 23:16:26,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:16:26,535 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:16:26,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:26,536 INFO L85 PathProgramCache]: Analyzing trace with hash 86619932, now seen corresponding path program 4 times [2022-11-25 23:16:26,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:26,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444216188] [2022-11-25 23:16:26,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:26,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:27,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:16:27,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:27,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444216188] [2022-11-25 23:16:27,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444216188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:27,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:27,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:16:27,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660674957] [2022-11-25 23:16:27,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:27,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:16:27,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:27,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:16:27,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:16:27,987 INFO L87 Difference]: Start difference. First operand 10281 states and 22159 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:37,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:37,721 INFO L93 Difference]: Finished difference Result 27175 states and 57513 transitions. [2022-11-25 23:16:37,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-25 23:16:37,722 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:16:37,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:37,768 INFO L225 Difference]: With dead ends: 27175 [2022-11-25 23:16:37,769 INFO L226 Difference]: Without dead ends: 27168 [2022-11-25 23:16:37,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=952, Invalid=3208, Unknown=0, NotChecked=0, Total=4160 [2022-11-25 23:16:37,771 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1198 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 6126 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 6769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 6126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:37,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 1856 Invalid, 6769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 6126 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-25 23:16:37,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27168 states. [2022-11-25 23:16:38,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27168 to 15143. [2022-11-25 23:16:38,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15143 states, 15100 states have (on average 2.178741721854305) internal successors, (32899), 15142 states have internal predecessors, (32899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:38,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15143 states to 15143 states and 32899 transitions. [2022-11-25 23:16:38,204 INFO L78 Accepts]: Start accepts. Automaton has 15143 states and 32899 transitions. Word has length 32 [2022-11-25 23:16:38,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:38,205 INFO L495 AbstractCegarLoop]: Abstraction has 15143 states and 32899 transitions. [2022-11-25 23:16:38,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:38,206 INFO L276 IsEmpty]: Start isEmpty. Operand 15143 states and 32899 transitions. [2022-11-25 23:16:38,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:16:38,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:38,213 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] [2022-11-25 23:16:38,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 23:16:38,213 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:16:38,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:38,214 INFO L85 PathProgramCache]: Analyzing trace with hash -33182028, now seen corresponding path program 3 times [2022-11-25 23:16:38,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:38,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343021950] [2022-11-25 23:16:38,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:38,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:39,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:16:39,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:39,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343021950] [2022-11-25 23:16:39,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343021950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:39,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:39,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:16:39,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077020811] [2022-11-25 23:16:39,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:39,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:16:39,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:39,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:16:39,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:16:39,729 INFO L87 Difference]: Start difference. First operand 15143 states and 32899 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:43,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:43,744 INFO L93 Difference]: Finished difference Result 21304 states and 45941 transitions. [2022-11-25 23:16:43,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 23:16:43,744 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:16:43,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:43,787 INFO L225 Difference]: With dead ends: 21304 [2022-11-25 23:16:43,787 INFO L226 Difference]: Without dead ends: 21304 [2022-11-25 23:16:43,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2022-11-25 23:16:43,788 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 621 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 3763 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 3781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:43,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1284 Invalid, 3781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3763 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 23:16:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21304 states. [2022-11-25 23:16:44,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21304 to 16478. [2022-11-25 23:16:44,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16478 states, 16435 states have (on average 2.177608761788865) internal successors, (35789), 16477 states have internal predecessors, (35789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:44,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16478 states to 16478 states and 35789 transitions. [2022-11-25 23:16:44,186 INFO L78 Accepts]: Start accepts. Automaton has 16478 states and 35789 transitions. Word has length 32 [2022-11-25 23:16:44,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:44,186 INFO L495 AbstractCegarLoop]: Abstraction has 16478 states and 35789 transitions. [2022-11-25 23:16:44,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:44,187 INFO L276 IsEmpty]: Start isEmpty. Operand 16478 states and 35789 transitions. [2022-11-25 23:16:44,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:16:44,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:44,193 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] [2022-11-25 23:16:44,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 23:16:44,194 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:16:44,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:44,200 INFO L85 PathProgramCache]: Analyzing trace with hash 92417422, now seen corresponding path program 4 times [2022-11-25 23:16:44,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:44,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832049602] [2022-11-25 23:16:44,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:46,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:16:46,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:46,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832049602] [2022-11-25 23:16:46,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832049602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:46,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:46,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:16:46,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877641068] [2022-11-25 23:16:46,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:46,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:16:46,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:46,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:16:46,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:16:46,030 INFO L87 Difference]: Start difference. First operand 16478 states and 35789 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:51,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:51,984 INFO L93 Difference]: Finished difference Result 19814 states and 42075 transitions. [2022-11-25 23:16:51,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:16:51,985 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:16:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:52,018 INFO L225 Difference]: With dead ends: 19814 [2022-11-25 23:16:52,018 INFO L226 Difference]: Without dead ends: 19814 [2022-11-25 23:16:52,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:16:52,019 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1023 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 4802 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 4840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 4802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:52,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1803 Invalid, 4840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 4802 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 23:16:52,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19814 states. [2022-11-25 23:16:52,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19814 to 16458. [2022-11-25 23:16:52,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16458 states, 16415 states have (on average 2.1761194029850746) internal successors, (35721), 16457 states have internal predecessors, (35721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16458 states to 16458 states and 35721 transitions. [2022-11-25 23:16:52,375 INFO L78 Accepts]: Start accepts. Automaton has 16458 states and 35721 transitions. Word has length 32 [2022-11-25 23:16:52,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:52,376 INFO L495 AbstractCegarLoop]: Abstraction has 16458 states and 35721 transitions. [2022-11-25 23:16:52,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:52,376 INFO L276 IsEmpty]: Start isEmpty. Operand 16458 states and 35721 transitions. [2022-11-25 23:16:52,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:16:52,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:52,383 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] [2022-11-25 23:16:52,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 23:16:52,383 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:16:52,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:52,384 INFO L85 PathProgramCache]: Analyzing trace with hash 407904112, now seen corresponding path program 5 times [2022-11-25 23:16:52,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:52,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221018818] [2022-11-25 23:16:52,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:52,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:54,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:16:54,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:54,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221018818] [2022-11-25 23:16:54,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221018818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:54,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:54,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:16:54,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703683963] [2022-11-25 23:16:54,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:54,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:16:54,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:54,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:16:54,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:16:54,033 INFO L87 Difference]: Start difference. First operand 16458 states and 35721 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:16:59,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:59,675 INFO L93 Difference]: Finished difference Result 19876 states and 42167 transitions. [2022-11-25 23:16:59,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:16:59,675 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:16:59,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:59,715 INFO L225 Difference]: With dead ends: 19876 [2022-11-25 23:16:59,715 INFO L226 Difference]: Without dead ends: 19876 [2022-11-25 23:16:59,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:16:59,716 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1008 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 4263 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 4307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:59,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 1687 Invalid, 4307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 4263 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 23:16:59,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19876 states. [2022-11-25 23:17:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19876 to 16446. [2022-11-25 23:17:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16446 states, 16403 states have (on average 2.1752728159483024) internal successors, (35681), 16445 states have internal predecessors, (35681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:00,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16446 states to 16446 states and 35681 transitions. [2022-11-25 23:17:00,125 INFO L78 Accepts]: Start accepts. Automaton has 16446 states and 35681 transitions. Word has length 32 [2022-11-25 23:17:00,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:00,125 INFO L495 AbstractCegarLoop]: Abstraction has 16446 states and 35681 transitions. [2022-11-25 23:17:00,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:00,125 INFO L276 IsEmpty]: Start isEmpty. Operand 16446 states and 35681 transitions. [2022-11-25 23:17:00,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:17:00,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:00,131 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] [2022-11-25 23:17:00,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 23:17:00,132 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:17:00,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:00,132 INFO L85 PathProgramCache]: Analyzing trace with hash -37169906, now seen corresponding path program 6 times [2022-11-25 23:17:00,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:00,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617695791] [2022-11-25 23:17:00,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:00,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:01,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:01,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617695791] [2022-11-25 23:17:01,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617695791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:01,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:01,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:17:01,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060737976] [2022-11-25 23:17:01,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:01,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:17:01,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:01,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:17:01,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:17:01,764 INFO L87 Difference]: Start difference. First operand 16446 states and 35681 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:06,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:06,177 INFO L93 Difference]: Finished difference Result 19926 states and 42251 transitions. [2022-11-25 23:17:06,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:17:06,178 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:17:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:06,219 INFO L225 Difference]: With dead ends: 19926 [2022-11-25 23:17:06,219 INFO L226 Difference]: Without dead ends: 19926 [2022-11-25 23:17:06,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=251, Invalid=871, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:17:06,220 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 847 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 3338 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 3378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:06,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 1791 Invalid, 3378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3338 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 23:17:06,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19926 states. [2022-11-25 23:17:06,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19926 to 16151. [2022-11-25 23:17:06,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16151 states, 16108 states have (on average 2.1753166128631736) internal successors, (35040), 16150 states have internal predecessors, (35040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:06,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16151 states to 16151 states and 35040 transitions. [2022-11-25 23:17:06,578 INFO L78 Accepts]: Start accepts. Automaton has 16151 states and 35040 transitions. Word has length 32 [2022-11-25 23:17:06,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:06,578 INFO L495 AbstractCegarLoop]: Abstraction has 16151 states and 35040 transitions. [2022-11-25 23:17:06,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:06,579 INFO L276 IsEmpty]: Start isEmpty. Operand 16151 states and 35040 transitions. [2022-11-25 23:17:06,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:17:06,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:06,586 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] [2022-11-25 23:17:06,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 23:17:06,587 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:17:06,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:06,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1512477412, now seen corresponding path program 5 times [2022-11-25 23:17:06,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:06,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948533500] [2022-11-25 23:17:06,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:06,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:07,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:07,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948533500] [2022-11-25 23:17:07,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948533500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:07,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:07,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:17:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86766961] [2022-11-25 23:17:07,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:07,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:17:07,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:07,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:17:07,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:17:07,801 INFO L87 Difference]: Start difference. First operand 16151 states and 35040 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:16,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:16,560 INFO L93 Difference]: Finished difference Result 36206 states and 77963 transitions. [2022-11-25 23:17:16,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-25 23:17:16,560 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:17:16,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:16,637 INFO L225 Difference]: With dead ends: 36206 [2022-11-25 23:17:16,637 INFO L226 Difference]: Without dead ends: 36199 [2022-11-25 23:17:16,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=741, Invalid=2229, Unknown=0, NotChecked=0, Total=2970 [2022-11-25 23:17:16,638 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 1000 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 6256 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 6703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 6256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:16,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1539 Invalid, 6703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 6256 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-25 23:17:16,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36199 states. [2022-11-25 23:17:17,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36199 to 21744. [2022-11-25 23:17:17,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21744 states, 21701 states have (on average 2.199483894751394) internal successors, (47731), 21743 states have internal predecessors, (47731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:17,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21744 states to 21744 states and 47731 transitions. [2022-11-25 23:17:17,109 INFO L78 Accepts]: Start accepts. Automaton has 21744 states and 47731 transitions. Word has length 32 [2022-11-25 23:17:17,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:17,109 INFO L495 AbstractCegarLoop]: Abstraction has 21744 states and 47731 transitions. [2022-11-25 23:17:17,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:17,109 INFO L276 IsEmpty]: Start isEmpty. Operand 21744 states and 47731 transitions. [2022-11-25 23:17:17,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:17:17,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:17,117 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] [2022-11-25 23:17:17,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 23:17:17,117 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:17:17,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1673710716, now seen corresponding path program 6 times [2022-11-25 23:17:17,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:17,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087942306] [2022-11-25 23:17:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:17,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:18,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:18,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:18,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087942306] [2022-11-25 23:17:18,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087942306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:18,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:18,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:17:18,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65166224] [2022-11-25 23:17:18,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:18,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:17:18,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:18,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:17:18,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:17:18,804 INFO L87 Difference]: Start difference. First operand 21744 states and 47731 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:25,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:25,022 INFO L93 Difference]: Finished difference Result 41535 states and 90790 transitions. [2022-11-25 23:17:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-25 23:17:25,023 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:17:25,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:25,110 INFO L225 Difference]: With dead ends: 41535 [2022-11-25 23:17:25,110 INFO L226 Difference]: Without dead ends: 41531 [2022-11-25 23:17:25,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=420, Invalid=986, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 23:17:25,112 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 862 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 3952 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 4325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 3952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:25,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 682 Invalid, 4325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 3952 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 23:17:25,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41531 states. [2022-11-25 23:17:25,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41531 to 22630. [2022-11-25 23:17:25,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22630 states, 22587 states have (on average 2.204011156860141) internal successors, (49782), 22629 states have internal predecessors, (49782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:25,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22630 states to 22630 states and 49782 transitions. [2022-11-25 23:17:25,588 INFO L78 Accepts]: Start accepts. Automaton has 22630 states and 49782 transitions. Word has length 32 [2022-11-25 23:17:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:25,588 INFO L495 AbstractCegarLoop]: Abstraction has 22630 states and 49782 transitions. [2022-11-25 23:17:25,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:25,589 INFO L276 IsEmpty]: Start isEmpty. Operand 22630 states and 49782 transitions. [2022-11-25 23:17:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:17:25,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:25,597 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] [2022-11-25 23:17:25,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 23:17:25,597 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:17:25,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:25,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1888297418, now seen corresponding path program 7 times [2022-11-25 23:17:25,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:25,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655215904] [2022-11-25 23:17:25,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:25,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:26,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:26,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655215904] [2022-11-25 23:17:26,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655215904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:26,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:26,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:17:26,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851977664] [2022-11-25 23:17:26,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:26,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:17:26,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:26,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:17:26,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:17:26,972 INFO L87 Difference]: Start difference. First operand 22630 states and 49782 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:33,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:33,724 INFO L93 Difference]: Finished difference Result 43317 states and 94895 transitions. [2022-11-25 23:17:33,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-25 23:17:33,725 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:17:33,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:33,815 INFO L225 Difference]: With dead ends: 43317 [2022-11-25 23:17:33,815 INFO L226 Difference]: Without dead ends: 43313 [2022-11-25 23:17:33,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=518, Invalid=1204, Unknown=0, NotChecked=0, Total=1722 [2022-11-25 23:17:33,817 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 862 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 4303 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 4691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 4303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:33,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 634 Invalid, 4691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 4303 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 23:17:33,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43313 states. [2022-11-25 23:17:34,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43313 to 22436. [2022-11-25 23:17:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22436 states, 22393 states have (on average 2.2044835439646318) internal successors, (49365), 22435 states have internal predecessors, (49365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:34,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22436 states to 22436 states and 49365 transitions. [2022-11-25 23:17:34,336 INFO L78 Accepts]: Start accepts. Automaton has 22436 states and 49365 transitions. Word has length 32 [2022-11-25 23:17:34,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:34,336 INFO L495 AbstractCegarLoop]: Abstraction has 22436 states and 49365 transitions. [2022-11-25 23:17:34,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:34,336 INFO L276 IsEmpty]: Start isEmpty. Operand 22436 states and 49365 transitions. [2022-11-25 23:17:34,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:17:34,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:34,343 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] [2022-11-25 23:17:34,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 23:17:34,344 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:17:34,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:34,344 INFO L85 PathProgramCache]: Analyzing trace with hash 152920762, now seen corresponding path program 7 times [2022-11-25 23:17:34,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:34,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685143037] [2022-11-25 23:17:34,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:34,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:36,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:36,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685143037] [2022-11-25 23:17:36,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685143037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:36,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:36,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:17:36,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211801959] [2022-11-25 23:17:36,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:36,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:17:36,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:36,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:17:36,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:17:36,258 INFO L87 Difference]: Start difference. First operand 22436 states and 49365 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:42,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:42,547 INFO L93 Difference]: Finished difference Result 30642 states and 66599 transitions. [2022-11-25 23:17:42,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:17:42,547 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:17:42,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:42,611 INFO L225 Difference]: With dead ends: 30642 [2022-11-25 23:17:42,612 INFO L226 Difference]: Without dead ends: 30642 [2022-11-25 23:17:42,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:17:42,613 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1010 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 5309 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 5389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 5309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:42,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 1180 Invalid, 5389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 5309 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-25 23:17:42,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30642 states. [2022-11-25 23:17:42,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30642 to 22399. [2022-11-25 23:17:43,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22399 states, 22356 states have (on average 2.204687779567007) internal successors, (49288), 22398 states have internal predecessors, (49288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22399 states to 22399 states and 49288 transitions. [2022-11-25 23:17:43,053 INFO L78 Accepts]: Start accepts. Automaton has 22399 states and 49288 transitions. Word has length 32 [2022-11-25 23:17:43,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:43,053 INFO L495 AbstractCegarLoop]: Abstraction has 22399 states and 49288 transitions. [2022-11-25 23:17:43,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 22399 states and 49288 transitions. [2022-11-25 23:17:43,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:17:43,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:43,060 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] [2022-11-25 23:17:43,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 23:17:43,060 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:17:43,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:43,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1772606476, now seen corresponding path program 8 times [2022-11-25 23:17:43,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:43,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098956299] [2022-11-25 23:17:43,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:43,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:44,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:44,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:44,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098956299] [2022-11-25 23:17:44,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098956299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:44,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:44,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:17:44,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157687041] [2022-11-25 23:17:44,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:44,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:17:44,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:17:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:17:44,613 INFO L87 Difference]: Start difference. First operand 22399 states and 49288 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:51,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:51,127 INFO L93 Difference]: Finished difference Result 31413 states and 67805 transitions. [2022-11-25 23:17:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:17:51,128 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:17:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:51,184 INFO L225 Difference]: With dead ends: 31413 [2022-11-25 23:17:51,184 INFO L226 Difference]: Without dead ends: 31409 [2022-11-25 23:17:51,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=345, Invalid=915, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:17:51,185 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 780 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 4424 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 4771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 4424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:51,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 953 Invalid, 4771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 4424 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 23:17:51,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31409 states. [2022-11-25 23:17:51,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31409 to 22686. [2022-11-25 23:17:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22686 states, 22643 states have (on average 2.2040807313518527) internal successors, (49907), 22685 states have internal predecessors, (49907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22686 states to 22686 states and 49907 transitions. [2022-11-25 23:17:51,728 INFO L78 Accepts]: Start accepts. Automaton has 22686 states and 49907 transitions. Word has length 32 [2022-11-25 23:17:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:51,728 INFO L495 AbstractCegarLoop]: Abstraction has 22686 states and 49907 transitions. [2022-11-25 23:17:51,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:51,729 INFO L276 IsEmpty]: Start isEmpty. Operand 22686 states and 49907 transitions. [2022-11-25 23:17:51,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:17:51,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:51,737 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] [2022-11-25 23:17:51,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 23:17:51,738 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:17:51,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:51,738 INFO L85 PathProgramCache]: Analyzing trace with hash 268611704, now seen corresponding path program 8 times [2022-11-25 23:17:51,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:51,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962660636] [2022-11-25 23:17:51,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:51,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:52,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:52,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:52,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962660636] [2022-11-25 23:17:52,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962660636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:52,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:52,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:17:52,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570129225] [2022-11-25 23:17:52,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:52,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:17:52,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:52,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:17:52,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:17:52,983 INFO L87 Difference]: Start difference. First operand 22686 states and 49907 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:57,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:57,550 INFO L93 Difference]: Finished difference Result 25965 states and 56686 transitions. [2022-11-25 23:17:57,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 23:17:57,551 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:17:57,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:57,595 INFO L225 Difference]: With dead ends: 25965 [2022-11-25 23:17:57,595 INFO L226 Difference]: Without dead ends: 25965 [2022-11-25 23:17:57,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2022-11-25 23:17:57,596 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 662 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 4981 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 4992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:57,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1215 Invalid, 4992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 4981 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 23:17:57,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25965 states. [2022-11-25 23:17:57,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25965 to 22810. [2022-11-25 23:17:57,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22810 states, 22767 states have (on average 2.204067290376422) internal successors, (50180), 22809 states have internal predecessors, (50180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:58,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22810 states to 22810 states and 50180 transitions. [2022-11-25 23:17:58,023 INFO L78 Accepts]: Start accepts. Automaton has 22810 states and 50180 transitions. Word has length 32 [2022-11-25 23:17:58,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:58,023 INFO L495 AbstractCegarLoop]: Abstraction has 22810 states and 50180 transitions. [2022-11-25 23:17:58,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:58,023 INFO L276 IsEmpty]: Start isEmpty. Operand 22810 states and 50180 transitions. [2022-11-25 23:17:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:17:58,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:58,028 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] [2022-11-25 23:17:58,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 23:17:58,029 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:17:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:58,030 INFO L85 PathProgramCache]: Analyzing trace with hash 372630992, now seen corresponding path program 9 times [2022-11-25 23:17:58,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:58,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627848820] [2022-11-25 23:17:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:58,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:59,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:59,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627848820] [2022-11-25 23:17:59,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627848820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:59,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:59,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:17:59,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049083314] [2022-11-25 23:17:59,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:59,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:17:59,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:59,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:17:59,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:17:59,134 INFO L87 Difference]: Start difference. First operand 22810 states and 50180 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:04,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:04,653 INFO L93 Difference]: Finished difference Result 32153 states and 69382 transitions. [2022-11-25 23:18:04,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 23:18:04,654 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:18:04,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:04,708 INFO L225 Difference]: With dead ends: 32153 [2022-11-25 23:18:04,709 INFO L226 Difference]: Without dead ends: 32149 [2022-11-25 23:18:04,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:18:04,709 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 881 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 4154 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 4624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 4154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:04,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1158 Invalid, 4624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 4154 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 23:18:04,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32149 states. [2022-11-25 23:18:05,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32149 to 22809. [2022-11-25 23:18:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22809 states, 22766 states have (on average 2.2038566283053678) internal successors, (50173), 22808 states have internal predecessors, (50173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:05,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22809 states to 22809 states and 50173 transitions. [2022-11-25 23:18:05,085 INFO L78 Accepts]: Start accepts. Automaton has 22809 states and 50173 transitions. Word has length 32 [2022-11-25 23:18:05,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:05,085 INFO L495 AbstractCegarLoop]: Abstraction has 22809 states and 50173 transitions. [2022-11-25 23:18:05,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:05,085 INFO L276 IsEmpty]: Start isEmpty. Operand 22809 states and 50173 transitions. [2022-11-25 23:18:05,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:18:05,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:05,089 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] [2022-11-25 23:18:05,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 23:18:05,090 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:18:05,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:05,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2003843386, now seen corresponding path program 10 times [2022-11-25 23:18:05,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:05,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798499098] [2022-11-25 23:18:05,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:05,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:05,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:05,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:05,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798499098] [2022-11-25 23:18:05,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798499098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:18:05,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:18:05,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:18:05,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094546084] [2022-11-25 23:18:05,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:18:05,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:18:05,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:05,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:18:05,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:18:05,949 INFO L87 Difference]: Start difference. First operand 22809 states and 50173 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:12,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:12,723 INFO L93 Difference]: Finished difference Result 34618 states and 74300 transitions. [2022-11-25 23:18:12,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-25 23:18:12,724 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:18:12,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:12,785 INFO L225 Difference]: With dead ends: 34618 [2022-11-25 23:18:12,785 INFO L226 Difference]: Without dead ends: 34611 [2022-11-25 23:18:12,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=511, Invalid=1745, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 23:18:12,786 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1343 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 4753 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 5373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 4753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:12,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 2040 Invalid, 5373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 4753 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-25 23:18:12,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34611 states. [2022-11-25 23:18:13,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34611 to 23904. [2022-11-25 23:18:13,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23904 states, 23861 states have (on average 2.204266376094883) internal successors, (52596), 23903 states have internal predecessors, (52596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:13,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23904 states to 23904 states and 52596 transitions. [2022-11-25 23:18:13,198 INFO L78 Accepts]: Start accepts. Automaton has 23904 states and 52596 transitions. Word has length 32 [2022-11-25 23:18:13,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:13,198 INFO L495 AbstractCegarLoop]: Abstraction has 23904 states and 52596 transitions. [2022-11-25 23:18:13,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:13,198 INFO L276 IsEmpty]: Start isEmpty. Operand 23904 states and 52596 transitions. [2022-11-25 23:18:13,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:18:13,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:13,203 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] [2022-11-25 23:18:13,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 23:18:13,203 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:18:13,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:13,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1884041426, now seen corresponding path program 9 times [2022-11-25 23:18:13,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:13,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426223650] [2022-11-25 23:18:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:13,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:14,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:14,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426223650] [2022-11-25 23:18:14,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426223650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:18:14,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:18:14,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:18:14,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559561492] [2022-11-25 23:18:14,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:18:14,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:18:14,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:14,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:18:14,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:18:14,638 INFO L87 Difference]: Start difference. First operand 23904 states and 52596 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:21,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:21,844 INFO L93 Difference]: Finished difference Result 30088 states and 65042 transitions. [2022-11-25 23:18:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:18:21,845 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:18:21,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:21,912 INFO L225 Difference]: With dead ends: 30088 [2022-11-25 23:18:21,913 INFO L226 Difference]: Without dead ends: 30088 [2022-11-25 23:18:21,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:18:21,914 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 1025 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 5709 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 5750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 5709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:21,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 2320 Invalid, 5750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 5709 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-25 23:18:21,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30088 states. [2022-11-25 23:18:22,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30088 to 23704. [2022-11-25 23:18:22,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23704 states, 23661 states have (on average 2.203964329487342) internal successors, (52148), 23703 states have internal predecessors, (52148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:22,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23704 states to 23704 states and 52148 transitions. [2022-11-25 23:18:22,516 INFO L78 Accepts]: Start accepts. Automaton has 23704 states and 52148 transitions. Word has length 32 [2022-11-25 23:18:22,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:22,516 INFO L495 AbstractCegarLoop]: Abstraction has 23704 states and 52148 transitions. [2022-11-25 23:18:22,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:22,516 INFO L276 IsEmpty]: Start isEmpty. Operand 23704 states and 52148 transitions. [2022-11-25 23:18:22,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:18:22,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:22,524 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] [2022-11-25 23:18:22,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 23:18:22,524 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:18:22,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:22,526 INFO L85 PathProgramCache]: Analyzing trace with hash 2009640876, now seen corresponding path program 10 times [2022-11-25 23:18:22,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:22,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997190917] [2022-11-25 23:18:22,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:22,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:24,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:24,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997190917] [2022-11-25 23:18:24,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997190917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:18:24,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:18:24,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:18:24,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739038482] [2022-11-25 23:18:24,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:18:24,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:18:24,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:24,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:18:24,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:18:24,036 INFO L87 Difference]: Start difference. First operand 23704 states and 52148 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:31,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:31,777 INFO L93 Difference]: Finished difference Result 29556 states and 64030 transitions. [2022-11-25 23:18:31,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:18:31,777 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:18:31,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:31,841 INFO L225 Difference]: With dead ends: 29556 [2022-11-25 23:18:31,841 INFO L226 Difference]: Without dead ends: 29556 [2022-11-25 23:18:31,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:18:31,842 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1018 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 6058 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 6090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 6058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:31,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 1997 Invalid, 6090 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 6058 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-25 23:18:31,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29556 states. [2022-11-25 23:18:32,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29556 to 23701. [2022-11-25 23:18:32,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23701 states, 23658 states have (on average 2.2039056555921888) internal successors, (52140), 23700 states have internal predecessors, (52140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23701 states to 23701 states and 52140 transitions. [2022-11-25 23:18:32,274 INFO L78 Accepts]: Start accepts. Automaton has 23701 states and 52140 transitions. Word has length 32 [2022-11-25 23:18:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:32,274 INFO L495 AbstractCegarLoop]: Abstraction has 23701 states and 52140 transitions. [2022-11-25 23:18:32,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 23701 states and 52140 transitions. [2022-11-25 23:18:32,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:18:32,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:32,279 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] [2022-11-25 23:18:32,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 23:18:32,280 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:18:32,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:32,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1969839730, now seen corresponding path program 11 times [2022-11-25 23:18:32,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:32,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989765906] [2022-11-25 23:18:32,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:32,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:33,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:33,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989765906] [2022-11-25 23:18:33,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989765906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:18:33,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:18:33,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:18:33,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726117651] [2022-11-25 23:18:33,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:18:33,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:18:33,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:33,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:18:33,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:18:33,755 INFO L87 Difference]: Start difference. First operand 23701 states and 52140 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:39,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:39,371 INFO L93 Difference]: Finished difference Result 29586 states and 64086 transitions. [2022-11-25 23:18:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:18:39,372 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:18:39,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:39,418 INFO L225 Difference]: With dead ends: 29586 [2022-11-25 23:18:39,418 INFO L226 Difference]: Without dead ends: 29586 [2022-11-25 23:18:39,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:18:39,420 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 802 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 4273 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 4313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 4273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:39,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 2090 Invalid, 4313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 4273 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 23:18:39,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29586 states. [2022-11-25 23:18:39,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29586 to 23698. [2022-11-25 23:18:39,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23698 states, 23655 states have (on average 2.203846966814627) internal successors, (52132), 23697 states have internal predecessors, (52132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:39,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23698 states to 23698 states and 52132 transitions. [2022-11-25 23:18:39,774 INFO L78 Accepts]: Start accepts. Automaton has 23698 states and 52132 transitions. Word has length 32 [2022-11-25 23:18:39,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:39,774 INFO L495 AbstractCegarLoop]: Abstraction has 23698 states and 52132 transitions. [2022-11-25 23:18:39,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:39,775 INFO L276 IsEmpty]: Start isEmpty. Operand 23698 states and 52132 transitions. [2022-11-25 23:18:39,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:18:39,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:39,779 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] [2022-11-25 23:18:39,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-25 23:18:39,779 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:18:39,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:39,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1880053548, now seen corresponding path program 12 times [2022-11-25 23:18:39,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:39,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199496046] [2022-11-25 23:18:39,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:39,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:41,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:41,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:41,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199496046] [2022-11-25 23:18:41,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199496046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:18:41,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:18:41,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:18:41,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561515030] [2022-11-25 23:18:41,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:18:41,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:18:41,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:41,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:18:41,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:18:41,467 INFO L87 Difference]: Start difference. First operand 23698 states and 52132 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:46,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:46,927 INFO L93 Difference]: Finished difference Result 29593 states and 64098 transitions. [2022-11-25 23:18:46,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:18:46,928 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:18:46,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:46,978 INFO L225 Difference]: With dead ends: 29593 [2022-11-25 23:18:46,978 INFO L226 Difference]: Without dead ends: 29593 [2022-11-25 23:18:46,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:18:46,980 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 754 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 4221 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 4259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 4221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:46,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 2087 Invalid, 4259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 4221 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 23:18:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29593 states. [2022-11-25 23:18:47,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29593 to 23485. [2022-11-25 23:18:47,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23485 states, 23442 states have (on average 2.204419418138384) internal successors, (51676), 23484 states have internal predecessors, (51676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:47,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23485 states to 23485 states and 51676 transitions. [2022-11-25 23:18:47,373 INFO L78 Accepts]: Start accepts. Automaton has 23485 states and 51676 transitions. Word has length 32 [2022-11-25 23:18:47,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:47,374 INFO L495 AbstractCegarLoop]: Abstraction has 23485 states and 51676 transitions. [2022-11-25 23:18:47,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:47,374 INFO L276 IsEmpty]: Start isEmpty. Operand 23485 states and 51676 transitions. [2022-11-25 23:18:47,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:18:47,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:47,381 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] [2022-11-25 23:18:47,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-25 23:18:47,382 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:18:47,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:47,383 INFO L85 PathProgramCache]: Analyzing trace with hash -865266430, now seen corresponding path program 11 times [2022-11-25 23:18:47,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:47,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107929858] [2022-11-25 23:18:47,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:47,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:48,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:48,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107929858] [2022-11-25 23:18:48,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107929858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:18:48,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:18:48,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:18:48,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234835597] [2022-11-25 23:18:48,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:18:48,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:18:48,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:48,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:18:48,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:18:48,441 INFO L87 Difference]: Start difference. First operand 23485 states and 51676 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:56,054 INFO L93 Difference]: Finished difference Result 33278 states and 71714 transitions. [2022-11-25 23:18:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-25 23:18:56,055 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:18:56,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:56,113 INFO L225 Difference]: With dead ends: 33278 [2022-11-25 23:18:56,113 INFO L226 Difference]: Without dead ends: 33271 [2022-11-25 23:18:56,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=506, Invalid=1656, Unknown=0, NotChecked=0, Total=2162 [2022-11-25 23:18:56,114 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1039 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 6304 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 6743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 6304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:56,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 1652 Invalid, 6743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 6304 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-25 23:18:56,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33271 states. [2022-11-25 23:18:56,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33271 to 23499. [2022-11-25 23:18:56,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23499 states, 23456 states have (on average 2.204254774897681) internal successors, (51703), 23498 states have internal predecessors, (51703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:56,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23499 states to 23499 states and 51703 transitions. [2022-11-25 23:18:56,600 INFO L78 Accepts]: Start accepts. Automaton has 23499 states and 51703 transitions. Word has length 32 [2022-11-25 23:18:56,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:56,600 INFO L495 AbstractCegarLoop]: Abstraction has 23499 states and 51703 transitions. [2022-11-25 23:18:56,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:56,600 INFO L276 IsEmpty]: Start isEmpty. Operand 23499 states and 51703 transitions. [2022-11-25 23:18:56,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:18:56,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:56,605 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] [2022-11-25 23:18:56,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-25 23:18:56,606 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:18:56,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:56,606 INFO L85 PathProgramCache]: Analyzing trace with hash -985068390, now seen corresponding path program 13 times [2022-11-25 23:18:56,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:56,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290078203] [2022-11-25 23:18:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:56,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:58,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:58,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290078203] [2022-11-25 23:18:58,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290078203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:18:58,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:18:58,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:18:58,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341550452] [2022-11-25 23:18:58,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:18:58,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:18:58,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:58,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:18:58,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:18:58,403 INFO L87 Difference]: Start difference. First operand 23499 states and 51703 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:04,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:04,861 INFO L93 Difference]: Finished difference Result 29402 states and 63794 transitions. [2022-11-25 23:19:04,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:19:04,862 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:19:04,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:04,913 INFO L225 Difference]: With dead ends: 29402 [2022-11-25 23:19:04,913 INFO L226 Difference]: Without dead ends: 29402 [2022-11-25 23:19:04,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2022-11-25 23:19:04,914 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 938 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 5135 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 5155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:04,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 1873 Invalid, 5155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 5135 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-25 23:19:04,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29402 states. [2022-11-25 23:19:05,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29402 to 23490. [2022-11-25 23:19:05,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23490 states, 23447 states have (on average 2.204290527572824) internal successors, (51684), 23489 states have internal predecessors, (51684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:05,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23490 states to 23490 states and 51684 transitions. [2022-11-25 23:19:05,271 INFO L78 Accepts]: Start accepts. Automaton has 23490 states and 51684 transitions. Word has length 32 [2022-11-25 23:19:05,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:05,272 INFO L495 AbstractCegarLoop]: Abstraction has 23490 states and 51684 transitions. [2022-11-25 23:19:05,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:05,272 INFO L276 IsEmpty]: Start isEmpty. Operand 23490 states and 51684 transitions. [2022-11-25 23:19:05,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:19:05,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:05,276 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] [2022-11-25 23:19:05,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-25 23:19:05,276 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:19:05,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:05,277 INFO L85 PathProgramCache]: Analyzing trace with hash 379203762, now seen corresponding path program 12 times [2022-11-25 23:19:05,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:05,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492803657] [2022-11-25 23:19:05,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:05,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:06,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:06,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:06,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492803657] [2022-11-25 23:19:06,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492803657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:06,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:06,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:19:06,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870857118] [2022-11-25 23:19:06,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:06,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:19:06,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:06,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:19:06,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:19:06,437 INFO L87 Difference]: Start difference. First operand 23490 states and 51684 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:11,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:11,731 INFO L93 Difference]: Finished difference Result 32050 states and 69215 transitions. [2022-11-25 23:19:11,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 23:19:11,731 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:19:11,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:11,793 INFO L225 Difference]: With dead ends: 32050 [2022-11-25 23:19:11,793 INFO L226 Difference]: Without dead ends: 32046 [2022-11-25 23:19:11,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=280, Invalid=776, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:19:11,794 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 993 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 3659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:11,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1097 Invalid, 3659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 23:19:11,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32046 states. [2022-11-25 23:19:12,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32046 to 23562. [2022-11-25 23:19:12,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23562 states, 23519 states have (on average 2.2037926782601303) internal successors, (51831), 23561 states have internal predecessors, (51831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23562 states to 23562 states and 51831 transitions. [2022-11-25 23:19:12,226 INFO L78 Accepts]: Start accepts. Automaton has 23562 states and 51831 transitions. Word has length 32 [2022-11-25 23:19:12,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:12,226 INFO L495 AbstractCegarLoop]: Abstraction has 23562 states and 51831 transitions. [2022-11-25 23:19:12,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:12,226 INFO L276 IsEmpty]: Start isEmpty. Operand 23562 states and 51831 transitions. [2022-11-25 23:19:12,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:19:12,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:12,230 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] [2022-11-25 23:19:12,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-25 23:19:12,230 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:19:12,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:12,231 INFO L85 PathProgramCache]: Analyzing trace with hash 2010416156, now seen corresponding path program 13 times [2022-11-25 23:19:12,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:12,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963451392] [2022-11-25 23:19:12,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:12,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:13,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:13,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:13,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963451392] [2022-11-25 23:19:13,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963451392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:13,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:13,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:19:13,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582783082] [2022-11-25 23:19:13,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:13,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:19:13,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:13,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:19:13,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:19:13,182 INFO L87 Difference]: Start difference. First operand 23562 states and 51831 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:21,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:21,363 INFO L93 Difference]: Finished difference Result 35254 states and 75709 transitions. [2022-11-25 23:19:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-25 23:19:21,363 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:19:21,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:21,429 INFO L225 Difference]: With dead ends: 35254 [2022-11-25 23:19:21,429 INFO L226 Difference]: Without dead ends: 35247 [2022-11-25 23:19:21,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=595, Invalid=2057, Unknown=0, NotChecked=0, Total=2652 [2022-11-25 23:19:21,430 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 1128 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 6239 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 2185 SdHoareTripleChecker+Invalid, 6691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 6239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:21,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 2185 Invalid, 6691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 6239 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-25 23:19:21,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35247 states. [2022-11-25 23:19:21,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35247 to 24337. [2022-11-25 23:19:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24337 states, 24294 states have (on average 2.20420680003293) internal successors, (53549), 24336 states have internal predecessors, (53549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24337 states to 24337 states and 53549 transitions. [2022-11-25 23:19:21,924 INFO L78 Accepts]: Start accepts. Automaton has 24337 states and 53549 transitions. Word has length 32 [2022-11-25 23:19:21,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:21,924 INFO L495 AbstractCegarLoop]: Abstraction has 24337 states and 53549 transitions. [2022-11-25 23:19:21,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:21,924 INFO L276 IsEmpty]: Start isEmpty. Operand 24337 states and 53549 transitions. [2022-11-25 23:19:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:19:21,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:21,928 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] [2022-11-25 23:19:21,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-25 23:19:21,929 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:19:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:21,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1890614196, now seen corresponding path program 14 times [2022-11-25 23:19:21,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:21,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922882310] [2022-11-25 23:19:21,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:21,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:23,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:23,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922882310] [2022-11-25 23:19:23,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922882310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:23,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:23,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:19:23,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468355197] [2022-11-25 23:19:23,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:23,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:19:23,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:23,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:19:23,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:19:23,894 INFO L87 Difference]: Start difference. First operand 24337 states and 53549 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:31,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:31,439 INFO L93 Difference]: Finished difference Result 30724 states and 66451 transitions. [2022-11-25 23:19:31,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:19:31,440 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:19:31,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:31,491 INFO L225 Difference]: With dead ends: 30724 [2022-11-25 23:19:31,491 INFO L226 Difference]: Without dead ends: 30724 [2022-11-25 23:19:31,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:19:31,492 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1123 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 5828 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 5871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 5828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:31,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 2246 Invalid, 5871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 5828 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-25 23:19:31,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30724 states. [2022-11-25 23:19:31,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30724 to 24030. [2022-11-25 23:19:31,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24030 states, 23987 states have (on average 2.2037353566515194) internal successors, (52861), 24029 states have internal predecessors, (52861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24030 states to 24030 states and 52861 transitions. [2022-11-25 23:19:31,883 INFO L78 Accepts]: Start accepts. Automaton has 24030 states and 52861 transitions. Word has length 32 [2022-11-25 23:19:31,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:31,883 INFO L495 AbstractCegarLoop]: Abstraction has 24030 states and 52861 transitions. [2022-11-25 23:19:31,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:31,884 INFO L276 IsEmpty]: Start isEmpty. Operand 24030 states and 52861 transitions. [2022-11-25 23:19:31,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:19:31,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:31,887 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] [2022-11-25 23:19:31,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-25 23:19:31,888 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:19:31,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:31,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2016213646, now seen corresponding path program 15 times [2022-11-25 23:19:31,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:31,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137699451] [2022-11-25 23:19:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:31,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:33,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:33,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:33,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137699451] [2022-11-25 23:19:33,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137699451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:33,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:33,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:19:33,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470213422] [2022-11-25 23:19:33,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:33,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:19:33,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:33,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:19:33,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:19:33,323 INFO L87 Difference]: Start difference. First operand 24030 states and 52861 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:40,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:40,212 INFO L93 Difference]: Finished difference Result 30192 states and 65439 transitions. [2022-11-25 23:19:40,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:19:40,213 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:19:40,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:40,265 INFO L225 Difference]: With dead ends: 30192 [2022-11-25 23:19:40,265 INFO L226 Difference]: Without dead ends: 30192 [2022-11-25 23:19:40,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:19:40,265 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 896 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 6116 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 6146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:40,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 2149 Invalid, 6146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 6116 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-25 23:19:40,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30192 states. [2022-11-25 23:19:40,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30192 to 24021. [2022-11-25 23:19:40,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24021 states, 23978 states have (on average 2.203478188339311) internal successors, (52835), 24020 states have internal predecessors, (52835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:40,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24021 states to 24021 states and 52835 transitions. [2022-11-25 23:19:40,678 INFO L78 Accepts]: Start accepts. Automaton has 24021 states and 52835 transitions. Word has length 32 [2022-11-25 23:19:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:40,678 INFO L495 AbstractCegarLoop]: Abstraction has 24021 states and 52835 transitions. [2022-11-25 23:19:40,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:40,679 INFO L276 IsEmpty]: Start isEmpty. Operand 24021 states and 52835 transitions. [2022-11-25 23:19:40,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:19:40,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:40,685 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] [2022-11-25 23:19:40,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-25 23:19:40,685 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:19:40,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:40,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1963266960, now seen corresponding path program 16 times [2022-11-25 23:19:40,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:40,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428397143] [2022-11-25 23:19:40,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:40,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:42,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:42,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:42,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428397143] [2022-11-25 23:19:42,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428397143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:42,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:42,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:19:42,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098034241] [2022-11-25 23:19:42,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:42,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:19:42,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:42,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:19:42,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:19:42,213 INFO L87 Difference]: Start difference. First operand 24021 states and 52835 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:47,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:47,242 INFO L93 Difference]: Finished difference Result 30222 states and 65495 transitions. [2022-11-25 23:19:47,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:19:47,242 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:19:47,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:47,290 INFO L225 Difference]: With dead ends: 30222 [2022-11-25 23:19:47,290 INFO L226 Difference]: Without dead ends: 30222 [2022-11-25 23:19:47,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:19:47,291 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 913 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 4066 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 4106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 4066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:47,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1994 Invalid, 4106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 4066 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 23:19:47,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30222 states. [2022-11-25 23:19:47,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30222 to 24015. [2022-11-25 23:19:47,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24015 states, 23972 states have (on average 2.203320540630736) internal successors, (52818), 24014 states have internal predecessors, (52818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:47,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24015 states to 24015 states and 52818 transitions. [2022-11-25 23:19:47,676 INFO L78 Accepts]: Start accepts. Automaton has 24015 states and 52818 transitions. Word has length 32 [2022-11-25 23:19:47,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:47,676 INFO L495 AbstractCegarLoop]: Abstraction has 24015 states and 52818 transitions. [2022-11-25 23:19:47,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:47,677 INFO L276 IsEmpty]: Start isEmpty. Operand 24015 states and 52818 transitions. [2022-11-25 23:19:47,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:19:47,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:47,680 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] [2022-11-25 23:19:47,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-25 23:19:47,681 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:19:47,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1886626318, now seen corresponding path program 17 times [2022-11-25 23:19:47,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:47,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051999096] [2022-11-25 23:19:47,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:47,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:49,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:49,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051999096] [2022-11-25 23:19:49,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051999096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:49,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:49,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:19:49,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392080336] [2022-11-25 23:19:49,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:49,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:19:49,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:49,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:19:49,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:19:49,456 INFO L87 Difference]: Start difference. First operand 24015 states and 52818 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:54,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:54,261 INFO L93 Difference]: Finished difference Result 30229 states and 65507 transitions. [2022-11-25 23:19:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:19:54,263 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:19:54,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:54,316 INFO L225 Difference]: With dead ends: 30229 [2022-11-25 23:19:54,317 INFO L226 Difference]: Without dead ends: 30229 [2022-11-25 23:19:54,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:19:54,318 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 875 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 3632 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 3674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:54,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 1985 Invalid, 3674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3632 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 23:19:54,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30229 states. [2022-11-25 23:19:54,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30229 to 23594. [2022-11-25 23:19:54,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23594 states, 23551 states have (on average 2.2041526899070103) internal successors, (51910), 23593 states have internal predecessors, (51910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:54,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23594 states to 23594 states and 51910 transitions. [2022-11-25 23:19:54,830 INFO L78 Accepts]: Start accepts. Automaton has 23594 states and 51910 transitions. Word has length 32 [2022-11-25 23:19:54,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:54,830 INFO L495 AbstractCegarLoop]: Abstraction has 23594 states and 51910 transitions. [2022-11-25 23:19:54,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:54,830 INFO L276 IsEmpty]: Start isEmpty. Operand 23594 states and 51910 transitions. [2022-11-25 23:19:54,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:19:54,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:54,834 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] [2022-11-25 23:19:54,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-25 23:19:54,834 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:19:54,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:54,836 INFO L85 PathProgramCache]: Analyzing trace with hash -858693660, now seen corresponding path program 14 times [2022-11-25 23:19:54,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:54,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734144781] [2022-11-25 23:19:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:54,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:55,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:55,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734144781] [2022-11-25 23:19:55,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734144781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:55,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:55,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:19:55,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637085790] [2022-11-25 23:19:55,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:55,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:19:55,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:55,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:19:55,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:19:55,684 INFO L87 Difference]: Start difference. First operand 23594 states and 51910 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:03,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:03,326 INFO L93 Difference]: Finished difference Result 33599 states and 72400 transitions. [2022-11-25 23:20:03,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-25 23:20:03,327 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:20:03,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:03,379 INFO L225 Difference]: With dead ends: 33599 [2022-11-25 23:20:03,380 INFO L226 Difference]: Without dead ends: 33592 [2022-11-25 23:20:03,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=590, Invalid=1960, Unknown=0, NotChecked=0, Total=2550 [2022-11-25 23:20:03,380 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1134 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 5838 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 6279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 5838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:03,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 1654 Invalid, 6279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 5838 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-25 23:20:03,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33592 states. [2022-11-25 23:20:03,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33592 to 23542. [2022-11-25 23:20:03,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23542 states, 23499 states have (on average 2.204051236222818) internal successors, (51793), 23541 states have internal predecessors, (51793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:03,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23542 states to 23542 states and 51793 transitions. [2022-11-25 23:20:03,833 INFO L78 Accepts]: Start accepts. Automaton has 23542 states and 51793 transitions. Word has length 32 [2022-11-25 23:20:03,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:03,833 INFO L495 AbstractCegarLoop]: Abstraction has 23542 states and 51793 transitions. [2022-11-25 23:20:03,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:03,833 INFO L276 IsEmpty]: Start isEmpty. Operand 23542 states and 51793 transitions. [2022-11-25 23:20:03,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:20:03,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:03,837 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] [2022-11-25 23:20:03,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-25 23:20:03,837 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:20:03,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:03,838 INFO L85 PathProgramCache]: Analyzing trace with hash -978495620, now seen corresponding path program 18 times [2022-11-25 23:20:03,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:03,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478526151] [2022-11-25 23:20:03,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:03,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:20:05,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:05,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478526151] [2022-11-25 23:20:05,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478526151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:05,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:20:05,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:20:05,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785004234] [2022-11-25 23:20:05,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:05,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:20:05,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:05,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:20:05,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:20:05,679 INFO L87 Difference]: Start difference. First operand 23542 states and 51793 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:11,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:11,421 INFO L93 Difference]: Finished difference Result 29723 states and 64480 transitions. [2022-11-25 23:20:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:20:11,422 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:20:11,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:11,469 INFO L225 Difference]: With dead ends: 29723 [2022-11-25 23:20:11,469 INFO L226 Difference]: Without dead ends: 29723 [2022-11-25 23:20:11,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2022-11-25 23:20:11,469 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 820 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 4726 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 4744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 4726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:11,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1985 Invalid, 4744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 4726 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 23:20:11,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29723 states. [2022-11-25 23:20:11,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29723 to 23425. [2022-11-25 23:20:11,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23425 states, 23382 states have (on average 2.203874775468309) internal successors, (51531), 23424 states have internal predecessors, (51531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23425 states to 23425 states and 51531 transitions. [2022-11-25 23:20:11,808 INFO L78 Accepts]: Start accepts. Automaton has 23425 states and 51531 transitions. Word has length 32 [2022-11-25 23:20:11,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:11,809 INFO L495 AbstractCegarLoop]: Abstraction has 23425 states and 51531 transitions. [2022-11-25 23:20:11,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:11,809 INFO L276 IsEmpty]: Start isEmpty. Operand 23425 states and 51531 transitions. [2022-11-25 23:20:11,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:20:11,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:11,812 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] [2022-11-25 23:20:11,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-25 23:20:11,813 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:20:11,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:11,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1165926564, now seen corresponding path program 15 times [2022-11-25 23:20:11,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:11,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097553182] [2022-11-25 23:20:11,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:11,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:20:12,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:12,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097553182] [2022-11-25 23:20:12,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097553182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:12,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:20:12,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:20:12,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461340578] [2022-11-25 23:20:12,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:12,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:20:12,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:12,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:20:12,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:20:12,604 INFO L87 Difference]: Start difference. First operand 23425 states and 51531 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:21,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:21,880 INFO L93 Difference]: Finished difference Result 36052 states and 77274 transitions. [2022-11-25 23:20:21,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-25 23:20:21,880 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:20:21,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:21,934 INFO L225 Difference]: With dead ends: 36052 [2022-11-25 23:20:21,934 INFO L226 Difference]: Without dead ends: 36045 [2022-11-25 23:20:21,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1106 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=920, Invalid=3370, Unknown=0, NotChecked=0, Total=4290 [2022-11-25 23:20:21,935 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1149 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 6629 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 7105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 6629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:21,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 2199 Invalid, 7105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 6629 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-25 23:20:21,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36045 states. [2022-11-25 23:20:22,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36045 to 24273. [2022-11-25 23:20:22,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24273 states, 24230 states have (on average 2.2037556747833262) internal successors, (53397), 24272 states have internal predecessors, (53397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24273 states to 24273 states and 53397 transitions. [2022-11-25 23:20:22,346 INFO L78 Accepts]: Start accepts. Automaton has 24273 states and 53397 transitions. Word has length 32 [2022-11-25 23:20:22,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:22,347 INFO L495 AbstractCegarLoop]: Abstraction has 24273 states and 53397 transitions. [2022-11-25 23:20:22,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 24273 states and 53397 transitions. [2022-11-25 23:20:22,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:20:22,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:22,352 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] [2022-11-25 23:20:22,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-25 23:20:22,352 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:20:22,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:22,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1285728524, now seen corresponding path program 19 times [2022-11-25 23:20:22,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:22,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3961550] [2022-11-25 23:20:22,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:22,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:20:23,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:23,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3961550] [2022-11-25 23:20:23,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3961550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:23,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:20:23,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:20:23,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303556758] [2022-11-25 23:20:23,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:23,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:20:23,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:20:23,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:20:23,509 INFO L87 Difference]: Start difference. First operand 24273 states and 53397 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:27,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:27,180 INFO L93 Difference]: Finished difference Result 31159 states and 68244 transitions. [2022-11-25 23:20:27,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 23:20:27,181 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:20:27,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:27,228 INFO L225 Difference]: With dead ends: 31159 [2022-11-25 23:20:27,228 INFO L226 Difference]: Without dead ends: 31159 [2022-11-25 23:20:27,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2022-11-25 23:20:27,229 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 689 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 3737 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 3756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:27,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 1515 Invalid, 3756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3737 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 23:20:27,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31159 states. [2022-11-25 23:20:27,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31159 to 24402. [2022-11-25 23:20:27,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24402 states, 24359 states have (on average 2.2040313641775113) internal successors, (53688), 24401 states have internal predecessors, (53688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:27,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24402 states to 24402 states and 53688 transitions. [2022-11-25 23:20:27,574 INFO L78 Accepts]: Start accepts. Automaton has 24402 states and 53688 transitions. Word has length 32 [2022-11-25 23:20:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:27,575 INFO L495 AbstractCegarLoop]: Abstraction has 24402 states and 53688 transitions. [2022-11-25 23:20:27,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:27,575 INFO L276 IsEmpty]: Start isEmpty. Operand 24402 states and 53688 transitions. [2022-11-25 23:20:27,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:20:27,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:27,580 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] [2022-11-25 23:20:27,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-25 23:20:27,581 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:20:27,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:27,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1160129074, now seen corresponding path program 20 times [2022-11-25 23:20:27,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:27,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305624647] [2022-11-25 23:20:27,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:27,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:20:29,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:29,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305624647] [2022-11-25 23:20:29,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305624647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:29,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:20:29,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:20:29,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268407442] [2022-11-25 23:20:29,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:29,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:20:29,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:29,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:20:29,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:20:29,107 INFO L87 Difference]: Start difference. First operand 24402 states and 53688 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:35,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:35,313 INFO L93 Difference]: Finished difference Result 31872 states and 68843 transitions. [2022-11-25 23:20:35,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 23:20:35,313 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:20:35,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:35,362 INFO L225 Difference]: With dead ends: 31872 [2022-11-25 23:20:35,362 INFO L226 Difference]: Without dead ends: 31872 [2022-11-25 23:20:35,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=330, Invalid=1152, Unknown=0, NotChecked=0, Total=1482 [2022-11-25 23:20:35,363 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1004 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 5198 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 5240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 5198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:35,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 2376 Invalid, 5240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 5198 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-25 23:20:35,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31872 states. [2022-11-25 23:20:35,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31872 to 24402. [2022-11-25 23:20:35,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24402 states, 24359 states have (on average 2.203785048647317) internal successors, (53682), 24401 states have internal predecessors, (53682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24402 states to 24402 states and 53682 transitions. [2022-11-25 23:20:35,740 INFO L78 Accepts]: Start accepts. Automaton has 24402 states and 53682 transitions. Word has length 32 [2022-11-25 23:20:35,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:35,740 INFO L495 AbstractCegarLoop]: Abstraction has 24402 states and 53682 transitions. [2022-11-25 23:20:35,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:35,740 INFO L276 IsEmpty]: Start isEmpty. Operand 24402 states and 53682 transitions. [2022-11-25 23:20:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:20:35,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:35,744 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] [2022-11-25 23:20:35,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-25 23:20:35,744 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:20:35,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:35,745 INFO L85 PathProgramCache]: Analyzing trace with hash -844642384, now seen corresponding path program 21 times [2022-11-25 23:20:35,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:35,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809865752] [2022-11-25 23:20:35,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:35,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:20:37,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:37,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809865752] [2022-11-25 23:20:37,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809865752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:37,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:20:37,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:20:37,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065606179] [2022-11-25 23:20:37,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:37,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:20:37,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:37,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:20:37,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:20:37,086 INFO L87 Difference]: Start difference. First operand 24402 states and 53682 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:42,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:42,165 INFO L93 Difference]: Finished difference Result 31898 states and 68881 transitions. [2022-11-25 23:20:42,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:20:42,166 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:20:42,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:42,214 INFO L225 Difference]: With dead ends: 31898 [2022-11-25 23:20:42,214 INFO L226 Difference]: Without dead ends: 31898 [2022-11-25 23:20:42,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 23:20:42,215 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 912 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 4111 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 4151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 4111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:42,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 2356 Invalid, 4151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 4111 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 23:20:42,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31898 states. [2022-11-25 23:20:42,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31898 to 24396. [2022-11-25 23:20:42,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24396 states, 24353 states have (on average 2.203547817517349) internal successors, (53663), 24395 states have internal predecessors, (53663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24396 states to 24396 states and 53663 transitions. [2022-11-25 23:20:42,637 INFO L78 Accepts]: Start accepts. Automaton has 24396 states and 53663 transitions. Word has length 32 [2022-11-25 23:20:42,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:42,637 INFO L495 AbstractCegarLoop]: Abstraction has 24396 states and 53663 transitions. [2022-11-25 23:20:42,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand 24396 states and 53663 transitions. [2022-11-25 23:20:42,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:20:42,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:42,642 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] [2022-11-25 23:20:42,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-25 23:20:42,642 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:20:42,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:42,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1289716402, now seen corresponding path program 22 times [2022-11-25 23:20:42,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:42,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142565190] [2022-11-25 23:20:42,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:42,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:20:43,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:43,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142565190] [2022-11-25 23:20:43,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142565190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:43,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:20:43,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:20:43,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471375632] [2022-11-25 23:20:43,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:43,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:20:43,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:43,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:20:43,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:20:43,909 INFO L87 Difference]: Start difference. First operand 24396 states and 53663 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:48,657 INFO L93 Difference]: Finished difference Result 31920 states and 68918 transitions. [2022-11-25 23:20:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:20:48,658 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:20:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:48,707 INFO L225 Difference]: With dead ends: 31920 [2022-11-25 23:20:48,707 INFO L226 Difference]: Without dead ends: 31920 [2022-11-25 23:20:48,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=291, Invalid=1041, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 23:20:48,708 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 875 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 3699 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 2347 SdHoareTripleChecker+Invalid, 3737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:48,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 2347 Invalid, 3737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3699 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 23:20:48,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31920 states. [2022-11-25 23:20:49,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31920 to 23983. [2022-11-25 23:20:49,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23983 states, 23940 states have (on average 2.203842940685046) internal successors, (52760), 23982 states have internal predecessors, (52760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:49,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23983 states to 23983 states and 52760 transitions. [2022-11-25 23:20:49,105 INFO L78 Accepts]: Start accepts. Automaton has 23983 states and 52760 transitions. Word has length 32 [2022-11-25 23:20:49,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:49,105 INFO L495 AbstractCegarLoop]: Abstraction has 23983 states and 52760 transitions. [2022-11-25 23:20:49,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:49,105 INFO L276 IsEmpty]: Start isEmpty. Operand 23983 states and 52760 transitions. [2022-11-25 23:20:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:20:49,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:49,109 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] [2022-11-25 23:20:49,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-25 23:20:49,109 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:20:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash 887874190, now seen corresponding path program 23 times [2022-11-25 23:20:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:49,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766122795] [2022-11-25 23:20:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:49,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:20:50,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:50,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766122795] [2022-11-25 23:20:50,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766122795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:50,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:20:50,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:20:50,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949014645] [2022-11-25 23:20:50,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:50,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:20:50,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:50,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:20:50,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:20:50,553 INFO L87 Difference]: Start difference. First operand 23983 states and 52760 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:54,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:54,668 INFO L93 Difference]: Finished difference Result 29736 states and 64490 transitions. [2022-11-25 23:20:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 23:20:54,669 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:20:54,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:54,715 INFO L225 Difference]: With dead ends: 29736 [2022-11-25 23:20:54,715 INFO L226 Difference]: Without dead ends: 29736 [2022-11-25 23:20:54,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-11-25 23:20:54,716 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 866 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 3471 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 3503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:54,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1612 Invalid, 3503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3471 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 23:20:54,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29736 states. [2022-11-25 23:20:55,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29736 to 23985. [2022-11-25 23:20:55,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23985 states, 23942 states have (on average 2.2038676802272157) internal successors, (52765), 23984 states have internal predecessors, (52765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:55,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23985 states to 23985 states and 52765 transitions. [2022-11-25 23:20:55,074 INFO L78 Accepts]: Start accepts. Automaton has 23985 states and 52765 transitions. Word has length 32 [2022-11-25 23:20:55,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:55,074 INFO L495 AbstractCegarLoop]: Abstraction has 23985 states and 52765 transitions. [2022-11-25 23:20:55,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:20:55,074 INFO L276 IsEmpty]: Start isEmpty. Operand 23985 states and 52765 transitions. [2022-11-25 23:20:55,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:20:55,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:55,078 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] [2022-11-25 23:20:55,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-25 23:20:55,078 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:20:55,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:55,079 INFO L85 PathProgramCache]: Analyzing trace with hash -404160306, now seen corresponding path program 24 times [2022-11-25 23:20:55,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:55,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933505050] [2022-11-25 23:20:55,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:55,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:20:56,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:56,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933505050] [2022-11-25 23:20:56,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933505050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:56,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:20:56,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:20:56,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702559563] [2022-11-25 23:20:56,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:56,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:20:56,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:56,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:20:56,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:20:56,422 INFO L87 Difference]: Start difference. First operand 23985 states and 52765 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:01,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:01,203 INFO L93 Difference]: Finished difference Result 29748 states and 64514 transitions. [2022-11-25 23:21:01,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 23:21:01,203 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:21:01,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:01,247 INFO L225 Difference]: With dead ends: 29748 [2022-11-25 23:21:01,247 INFO L226 Difference]: Without dead ends: 29748 [2022-11-25 23:21:01,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:21:01,248 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 846 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 4298 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 4329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 4298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:01,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1616 Invalid, 4329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 4298 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 23:21:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29748 states. [2022-11-25 23:21:01,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29748 to 23983. [2022-11-25 23:21:01,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23983 states, 23940 states have (on average 2.203842940685046) internal successors, (52760), 23982 states have internal predecessors, (52760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23983 states to 23983 states and 52760 transitions. [2022-11-25 23:21:01,603 INFO L78 Accepts]: Start accepts. Automaton has 23983 states and 52760 transitions. Word has length 32 [2022-11-25 23:21:01,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:01,603 INFO L495 AbstractCegarLoop]: Abstraction has 23983 states and 52760 transitions. [2022-11-25 23:21:01,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 23983 states and 52760 transitions. [2022-11-25 23:21:01,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:21:01,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:01,607 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] [2022-11-25 23:21:01,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-25 23:21:01,607 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:21:01,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:01,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1704792718, now seen corresponding path program 25 times [2022-11-25 23:21:01,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:01,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385901651] [2022-11-25 23:21:01,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:01,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:03,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:21:03,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:03,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385901651] [2022-11-25 23:21:03,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385901651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:03,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:03,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:21:03,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272721736] [2022-11-25 23:21:03,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:03,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:21:03,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:03,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:21:03,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:21:03,018 INFO L87 Difference]: Start difference. First operand 23983 states and 52760 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:07,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:07,617 INFO L93 Difference]: Finished difference Result 29756 states and 64530 transitions. [2022-11-25 23:21:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 23:21:07,617 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:21:07,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:07,664 INFO L225 Difference]: With dead ends: 29756 [2022-11-25 23:21:07,664 INFO L226 Difference]: Without dead ends: 29756 [2022-11-25 23:21:07,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:21:07,665 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 867 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 3964 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 3996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:07,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1603 Invalid, 3996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3964 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 23:21:07,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29756 states. [2022-11-25 23:21:07,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29756 to 23981. [2022-11-25 23:21:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23981 states, 23938 states have (on average 2.20381819700894) internal successors, (52755), 23980 states have internal predecessors, (52755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:08,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23981 states to 23981 states and 52755 transitions. [2022-11-25 23:21:08,020 INFO L78 Accepts]: Start accepts. Automaton has 23981 states and 52755 transitions. Word has length 32 [2022-11-25 23:21:08,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:08,020 INFO L495 AbstractCegarLoop]: Abstraction has 23981 states and 52755 transitions. [2022-11-25 23:21:08,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:08,021 INFO L276 IsEmpty]: Start isEmpty. Operand 23981 states and 52755 transitions. [2022-11-25 23:21:08,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:21:08,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:08,024 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] [2022-11-25 23:21:08,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-25 23:21:08,025 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:21:08,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:08,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1713541298, now seen corresponding path program 26 times [2022-11-25 23:21:08,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:08,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563468229] [2022-11-25 23:21:08,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:08,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:21:09,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:09,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563468229] [2022-11-25 23:21:09,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563468229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:09,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:09,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:21:09,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112725541] [2022-11-25 23:21:09,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:09,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:21:09,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:09,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:21:09,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:21:09,327 INFO L87 Difference]: Start difference. First operand 23981 states and 52755 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:14,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:14,862 INFO L93 Difference]: Finished difference Result 29718 states and 64452 transitions. [2022-11-25 23:21:14,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:21:14,863 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:21:14,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:14,908 INFO L225 Difference]: With dead ends: 29718 [2022-11-25 23:21:14,908 INFO L226 Difference]: Without dead ends: 29718 [2022-11-25 23:21:14,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:21:14,909 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 1008 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 4747 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 4780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:14,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 1621 Invalid, 4780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 4747 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 23:21:14,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29718 states. [2022-11-25 23:21:15,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29718 to 23981. [2022-11-25 23:21:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23981 states, 23938 states have (on average 2.20381819700894) internal successors, (52755), 23980 states have internal predecessors, (52755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:15,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23981 states to 23981 states and 52755 transitions. [2022-11-25 23:21:15,251 INFO L78 Accepts]: Start accepts. Automaton has 23981 states and 52755 transitions. Word has length 32 [2022-11-25 23:21:15,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:15,251 INFO L495 AbstractCegarLoop]: Abstraction has 23981 states and 52755 transitions. [2022-11-25 23:21:15,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:15,252 INFO L276 IsEmpty]: Start isEmpty. Operand 23981 states and 52755 transitions. [2022-11-25 23:21:15,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:21:15,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:15,256 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] [2022-11-25 23:21:15,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-25 23:21:15,256 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:21:15,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:15,256 INFO L85 PathProgramCache]: Analyzing trace with hash -37417458, now seen corresponding path program 27 times [2022-11-25 23:21:15,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:15,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011488483] [2022-11-25 23:21:15,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:15,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:16,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:21:16,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:16,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011488483] [2022-11-25 23:21:16,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011488483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:16,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:16,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:21:16,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124635311] [2022-11-25 23:21:16,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:16,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:21:16,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:16,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:21:16,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:21:16,538 INFO L87 Difference]: Start difference. First operand 23981 states and 52755 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:21,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:21,167 INFO L93 Difference]: Finished difference Result 29728 states and 64472 transitions. [2022-11-25 23:21:21,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 23:21:21,168 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:21:21,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:21,213 INFO L225 Difference]: With dead ends: 29728 [2022-11-25 23:21:21,213 INFO L226 Difference]: Without dead ends: 29728 [2022-11-25 23:21:21,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-11-25 23:21:21,214 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 785 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 4145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:21,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1738 Invalid, 4145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 4112 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 23:21:21,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29728 states. [2022-11-25 23:21:21,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29728 to 23977. [2022-11-25 23:21:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23977 states, 23934 states have (on average 2.203768697250773) internal successors, (52745), 23976 states have internal predecessors, (52745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23977 states to 23977 states and 52745 transitions. [2022-11-25 23:21:21,583 INFO L78 Accepts]: Start accepts. Automaton has 23977 states and 52745 transitions. Word has length 32 [2022-11-25 23:21:21,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:21,584 INFO L495 AbstractCegarLoop]: Abstraction has 23977 states and 52745 transitions. [2022-11-25 23:21:21,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:21,584 INFO L276 IsEmpty]: Start isEmpty. Operand 23977 states and 52745 transitions. [2022-11-25 23:21:21,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:21:21,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:21,588 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] [2022-11-25 23:21:21,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-25 23:21:21,588 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:21:21,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:21,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1329451954, now seen corresponding path program 28 times [2022-11-25 23:21:21,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:21,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936986423] [2022-11-25 23:21:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:21,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:23,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:21:23,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:23,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936986423] [2022-11-25 23:21:23,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936986423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:23,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:23,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:21:23,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217300705] [2022-11-25 23:21:23,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:23,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:21:23,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:23,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:21:23,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:21:23,016 INFO L87 Difference]: Start difference. First operand 23977 states and 52745 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:27,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:27,848 INFO L93 Difference]: Finished difference Result 29726 states and 64466 transitions. [2022-11-25 23:21:27,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 23:21:27,848 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:21:27,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:27,893 INFO L225 Difference]: With dead ends: 29726 [2022-11-25 23:21:27,893 INFO L226 Difference]: Without dead ends: 29726 [2022-11-25 23:21:27,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:21:27,894 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 908 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 4116 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 4149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:27,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 1606 Invalid, 4149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 4116 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 23:21:27,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29726 states. [2022-11-25 23:21:28,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29726 to 23975. [2022-11-25 23:21:28,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23975 states, 23932 states have (on average 2.2037439411666386) internal successors, (52740), 23974 states have internal predecessors, (52740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:28,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23975 states to 23975 states and 52740 transitions. [2022-11-25 23:21:28,287 INFO L78 Accepts]: Start accepts. Automaton has 23975 states and 52740 transitions. Word has length 32 [2022-11-25 23:21:28,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:28,287 INFO L495 AbstractCegarLoop]: Abstraction has 23975 states and 52740 transitions. [2022-11-25 23:21:28,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 23975 states and 52740 transitions. [2022-11-25 23:21:28,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:21:28,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:28,290 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] [2022-11-25 23:21:28,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-25 23:21:28,291 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:21:28,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:28,291 INFO L85 PathProgramCache]: Analyzing trace with hash -371838812, now seen corresponding path program 16 times [2022-11-25 23:21:28,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:28,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120413271] [2022-11-25 23:21:28,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:28,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:29,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:21:29,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:29,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120413271] [2022-11-25 23:21:29,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120413271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:29,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:29,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:21:29,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483411845] [2022-11-25 23:21:29,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:29,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:21:29,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:29,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:21:29,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:21:29,163 INFO L87 Difference]: Start difference. First operand 23975 states and 52740 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:37,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:37,375 INFO L93 Difference]: Finished difference Result 35515 states and 76279 transitions. [2022-11-25 23:21:37,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 23:21:37,375 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:21:37,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:37,429 INFO L225 Difference]: With dead ends: 35515 [2022-11-25 23:21:37,429 INFO L226 Difference]: Without dead ends: 35508 [2022-11-25 23:21:37,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=681, Invalid=2399, Unknown=0, NotChecked=0, Total=3080 [2022-11-25 23:21:37,430 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1390 mSDsluCounter, 1665 mSDsCounter, 0 mSdLazyCounter, 6228 mSolverCounterSat, 607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 6835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 6228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:37,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 1952 Invalid, 6835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [607 Valid, 6228 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 23:21:37,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35508 states. [2022-11-25 23:21:37,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35508 to 24687. [2022-11-25 23:21:37,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24687 states, 24644 states have (on average 2.2040253205648432) internal successors, (54316), 24686 states have internal predecessors, (54316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24687 states to 24687 states and 54316 transitions. [2022-11-25 23:21:37,840 INFO L78 Accepts]: Start accepts. Automaton has 24687 states and 54316 transitions. Word has length 32 [2022-11-25 23:21:37,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:37,840 INFO L495 AbstractCegarLoop]: Abstraction has 24687 states and 54316 transitions. [2022-11-25 23:21:37,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:37,841 INFO L276 IsEmpty]: Start isEmpty. Operand 24687 states and 54316 transitions. [2022-11-25 23:21:37,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:21:37,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:37,845 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] [2022-11-25 23:21:37,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-25 23:21:37,845 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:21:37,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:37,845 INFO L85 PathProgramCache]: Analyzing trace with hash -491640772, now seen corresponding path program 29 times [2022-11-25 23:21:37,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:37,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474158259] [2022-11-25 23:21:37,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:37,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:39,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:21:39,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:39,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474158259] [2022-11-25 23:21:39,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474158259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:39,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:39,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:21:39,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388489513] [2022-11-25 23:21:39,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:39,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:21:39,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:39,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:21:39,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:21:39,135 INFO L87 Difference]: Start difference. First operand 24687 states and 54316 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:45,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:45,167 INFO L93 Difference]: Finished difference Result 31095 states and 67241 transitions. [2022-11-25 23:21:45,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:21:45,168 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:21:45,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:45,215 INFO L225 Difference]: With dead ends: 31095 [2022-11-25 23:21:45,215 INFO L226 Difference]: Without dead ends: 31095 [2022-11-25 23:21:45,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:21:45,216 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1317 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 4969 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 5015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 4969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:45,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 2080 Invalid, 5015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 4969 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-25 23:21:45,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31095 states. [2022-11-25 23:21:45,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31095 to 24380. [2022-11-25 23:21:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24380 states, 24337 states have (on average 2.203558367917163) internal successors, (53628), 24379 states have internal predecessors, (53628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:45,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24380 states to 24380 states and 53628 transitions. [2022-11-25 23:21:45,574 INFO L78 Accepts]: Start accepts. Automaton has 24380 states and 53628 transitions. Word has length 32 [2022-11-25 23:21:45,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:45,574 INFO L495 AbstractCegarLoop]: Abstraction has 24380 states and 53628 transitions. [2022-11-25 23:21:45,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:45,574 INFO L276 IsEmpty]: Start isEmpty. Operand 24380 states and 53628 transitions. [2022-11-25 23:21:45,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:21:45,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:45,578 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] [2022-11-25 23:21:45,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-25 23:21:45,578 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:21:45,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:45,578 INFO L85 PathProgramCache]: Analyzing trace with hash -366041322, now seen corresponding path program 30 times [2022-11-25 23:21:45,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:45,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043470629] [2022-11-25 23:21:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:45,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:21:46,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:46,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043470629] [2022-11-25 23:21:46,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043470629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:46,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:46,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:21:46,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323418913] [2022-11-25 23:21:46,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:46,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:21:46,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:46,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:21:46,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:21:46,924 INFO L87 Difference]: Start difference. First operand 24380 states and 53628 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:53,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:21:53,458 INFO L93 Difference]: Finished difference Result 30626 states and 66358 transitions. [2022-11-25 23:21:53,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:21:53,459 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:21:53,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:21:53,505 INFO L225 Difference]: With dead ends: 30626 [2022-11-25 23:21:53,505 INFO L226 Difference]: Without dead ends: 30626 [2022-11-25 23:21:53,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:21:53,505 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 908 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 5844 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 5878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 5844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:21:53,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 2214 Invalid, 5878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 5844 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-25 23:21:53,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30626 states. [2022-11-25 23:21:53,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30626 to 24371. [2022-11-25 23:21:53,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24371 states, 24328 states have (on average 2.203304833936205) internal successors, (53602), 24370 states have internal predecessors, (53602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:53,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24371 states to 24371 states and 53602 transitions. [2022-11-25 23:21:53,864 INFO L78 Accepts]: Start accepts. Automaton has 24371 states and 53602 transitions. Word has length 32 [2022-11-25 23:21:53,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:21:53,864 INFO L495 AbstractCegarLoop]: Abstraction has 24371 states and 53602 transitions. [2022-11-25 23:21:53,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:21:53,865 INFO L276 IsEmpty]: Start isEmpty. Operand 24371 states and 53602 transitions. [2022-11-25 23:21:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:21:53,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:53,868 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] [2022-11-25 23:21:53,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-25 23:21:53,869 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:21:53,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:53,869 INFO L85 PathProgramCache]: Analyzing trace with hash -50554632, now seen corresponding path program 31 times [2022-11-25 23:21:53,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:53,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101559413] [2022-11-25 23:21:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:53,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:21:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:21:55,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:21:55,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101559413] [2022-11-25 23:21:55,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101559413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:21:55,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:21:55,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:21:55,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411796082] [2022-11-25 23:21:55,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:21:55,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:21:55,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:21:55,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:21:55,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:21:55,091 INFO L87 Difference]: Start difference. First operand 24371 states and 53602 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:00,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:00,559 INFO L93 Difference]: Finished difference Result 30656 states and 66414 transitions. [2022-11-25 23:22:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:22:00,559 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:22:00,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:00,606 INFO L225 Difference]: With dead ends: 30656 [2022-11-25 23:22:00,606 INFO L226 Difference]: Without dead ends: 30656 [2022-11-25 23:22:00,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:22:00,606 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 808 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 4914 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 4954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 4914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:00,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 2196 Invalid, 4954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 4914 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 23:22:00,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30656 states. [2022-11-25 23:22:00,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30656 to 24365. [2022-11-25 23:22:00,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24365 states, 24322 states have (on average 2.2031494120549295) internal successors, (53585), 24364 states have internal predecessors, (53585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:00,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24365 states to 24365 states and 53585 transitions. [2022-11-25 23:22:00,957 INFO L78 Accepts]: Start accepts. Automaton has 24365 states and 53585 transitions. Word has length 32 [2022-11-25 23:22:00,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:00,957 INFO L495 AbstractCegarLoop]: Abstraction has 24365 states and 53585 transitions. [2022-11-25 23:22:00,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:00,957 INFO L276 IsEmpty]: Start isEmpty. Operand 24365 states and 53585 transitions. [2022-11-25 23:22:00,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:22:00,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:00,961 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] [2022-11-25 23:22:00,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-25 23:22:00,962 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:22:00,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:00,962 INFO L85 PathProgramCache]: Analyzing trace with hash -495628650, now seen corresponding path program 32 times [2022-11-25 23:22:00,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:00,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479523775] [2022-11-25 23:22:00,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:00,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:02,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:02,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479523775] [2022-11-25 23:22:02,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479523775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:02,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:02,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:22:02,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547061285] [2022-11-25 23:22:02,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:02,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:22:02,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:02,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:22:02,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:22:02,226 INFO L87 Difference]: Start difference. First operand 24365 states and 53585 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:07,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:07,638 INFO L93 Difference]: Finished difference Result 30663 states and 66426 transitions. [2022-11-25 23:22:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:22:07,639 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:22:07,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:07,685 INFO L225 Difference]: With dead ends: 30663 [2022-11-25 23:22:07,685 INFO L226 Difference]: Without dead ends: 30663 [2022-11-25 23:22:07,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:22:07,685 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 873 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 4670 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 2069 SdHoareTripleChecker+Invalid, 4712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 4670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:07,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 2069 Invalid, 4712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 4670 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 23:22:07,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30663 states. [2022-11-25 23:22:07,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30663 to 24074. [2022-11-25 23:22:07,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24074 states, 24031 states have (on average 2.203653614081811) internal successors, (52956), 24073 states have internal predecessors, (52956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:08,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24074 states to 24074 states and 52956 transitions. [2022-11-25 23:22:08,032 INFO L78 Accepts]: Start accepts. Automaton has 24074 states and 52956 transitions. Word has length 32 [2022-11-25 23:22:08,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:08,032 INFO L495 AbstractCegarLoop]: Abstraction has 24074 states and 52956 transitions. [2022-11-25 23:22:08,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:08,032 INFO L276 IsEmpty]: Start isEmpty. Operand 24074 states and 52956 transitions. [2022-11-25 23:22:08,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:22:08,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:08,036 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] [2022-11-25 23:22:08,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-25 23:22:08,036 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:22:08,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:08,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1833293404, now seen corresponding path program 17 times [2022-11-25 23:22:08,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:08,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354104454] [2022-11-25 23:22:08,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:08,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:08,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:08,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354104454] [2022-11-25 23:22:08,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354104454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:08,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:08,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:22:08,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249927988] [2022-11-25 23:22:08,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:08,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:22:08,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:08,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:22:08,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:22:08,885 INFO L87 Difference]: Start difference. First operand 24074 states and 52956 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:16,565 INFO L93 Difference]: Finished difference Result 33723 states and 72710 transitions. [2022-11-25 23:22:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-25 23:22:16,566 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:22:16,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:16,619 INFO L225 Difference]: With dead ends: 33723 [2022-11-25 23:22:16,619 INFO L226 Difference]: Without dead ends: 33716 [2022-11-25 23:22:16,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=694, Invalid=2276, Unknown=0, NotChecked=0, Total=2970 [2022-11-25 23:22:16,620 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1148 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 5738 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 6179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 5738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:16,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 1575 Invalid, 6179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 5738 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 23:22:16,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33716 states. [2022-11-25 23:22:16,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33716 to 24016. [2022-11-25 23:22:16,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24016 states, 23973 states have (on average 2.203562340966921) internal successors, (52826), 24015 states have internal predecessors, (52826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:16,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24016 states to 24016 states and 52826 transitions. [2022-11-25 23:22:16,989 INFO L78 Accepts]: Start accepts. Automaton has 24016 states and 52826 transitions. Word has length 32 [2022-11-25 23:22:16,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:16,989 INFO L495 AbstractCegarLoop]: Abstraction has 24016 states and 52826 transitions. [2022-11-25 23:22:16,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand 24016 states and 52826 transitions. [2022-11-25 23:22:16,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:22:16,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:16,993 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] [2022-11-25 23:22:16,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-25 23:22:16,993 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:22:16,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:16,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1953095364, now seen corresponding path program 33 times [2022-11-25 23:22:16,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:16,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665348626] [2022-11-25 23:22:16,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:16,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:18,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:18,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:18,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665348626] [2022-11-25 23:22:18,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665348626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:18,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:18,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:22:18,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192014626] [2022-11-25 23:22:18,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:18,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:22:18,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:18,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:22:18,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:22:18,313 INFO L87 Difference]: Start difference. First operand 24016 states and 52826 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:24,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:24,971 INFO L93 Difference]: Finished difference Result 29788 states and 64670 transitions. [2022-11-25 23:22:24,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:22:24,972 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:22:24,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:25,017 INFO L225 Difference]: With dead ends: 29788 [2022-11-25 23:22:25,017 INFO L226 Difference]: Without dead ends: 29788 [2022-11-25 23:22:25,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2022-11-25 23:22:25,018 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 827 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 6108 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 6126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 6108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:25,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 1937 Invalid, 6126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 6108 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-25 23:22:25,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29788 states. [2022-11-25 23:22:25,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29788 to 23975. [2022-11-25 23:22:25,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23975 states, 23932 states have (on average 2.2037439411666386) internal successors, (52740), 23974 states have internal predecessors, (52740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:25,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23975 states to 23975 states and 52740 transitions. [2022-11-25 23:22:25,531 INFO L78 Accepts]: Start accepts. Automaton has 23975 states and 52740 transitions. Word has length 32 [2022-11-25 23:22:25,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:25,531 INFO L495 AbstractCegarLoop]: Abstraction has 23975 states and 52740 transitions. [2022-11-25 23:22:25,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:25,531 INFO L276 IsEmpty]: Start isEmpty. Operand 23975 states and 52740 transitions. [2022-11-25 23:22:25,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:22:25,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:25,535 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] [2022-11-25 23:22:25,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-25 23:22:25,535 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:22:25,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:25,536 INFO L85 PathProgramCache]: Analyzing trace with hash -95941756, now seen corresponding path program 18 times [2022-11-25 23:22:25,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:25,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974204730] [2022-11-25 23:22:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:25,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:26,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:26,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974204730] [2022-11-25 23:22:26,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974204730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:26,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:26,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:22:26,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379510778] [2022-11-25 23:22:26,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:26,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:22:26,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:26,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:22:26,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:22:26,657 INFO L87 Difference]: Start difference. First operand 23975 states and 52740 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:32,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:32,163 INFO L93 Difference]: Finished difference Result 33201 states and 71707 transitions. [2022-11-25 23:22:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:22:32,163 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:22:32,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:32,220 INFO L225 Difference]: With dead ends: 33201 [2022-11-25 23:22:32,220 INFO L226 Difference]: Without dead ends: 33197 [2022-11-25 23:22:32,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=355, Invalid=905, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:22:32,220 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 1212 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 666 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 4082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:32,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 864 Invalid, 4082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 23:22:32,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33197 states. [2022-11-25 23:22:32,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33197 to 24849. [2022-11-25 23:22:32,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24849 states, 24806 states have (on average 2.207530436184794) internal successors, (54760), 24848 states have internal predecessors, (54760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:32,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24849 states to 24849 states and 54760 transitions. [2022-11-25 23:22:32,741 INFO L78 Accepts]: Start accepts. Automaton has 24849 states and 54760 transitions. Word has length 32 [2022-11-25 23:22:32,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:32,742 INFO L495 AbstractCegarLoop]: Abstraction has 24849 states and 54760 transitions. [2022-11-25 23:22:32,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:32,742 INFO L276 IsEmpty]: Start isEmpty. Operand 24849 states and 54760 transitions. [2022-11-25 23:22:32,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:22:32,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:32,746 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] [2022-11-25 23:22:32,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-25 23:22:32,746 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:22:32,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:32,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1945276424, now seen corresponding path program 34 times [2022-11-25 23:22:32,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:32,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245460178] [2022-11-25 23:22:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:32,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:33,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:33,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245460178] [2022-11-25 23:22:33,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245460178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:33,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:33,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:22:33,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908366830] [2022-11-25 23:22:33,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:33,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:22:33,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:33,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:22:33,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:22:33,960 INFO L87 Difference]: Start difference. First operand 24849 states and 54760 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:38,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:38,106 INFO L93 Difference]: Finished difference Result 29321 states and 64135 transitions. [2022-11-25 23:22:38,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 23:22:38,107 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:22:38,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:38,153 INFO L225 Difference]: With dead ends: 29321 [2022-11-25 23:22:38,153 INFO L226 Difference]: Without dead ends: 29321 [2022-11-25 23:22:38,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2022-11-25 23:22:38,153 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 616 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 4766 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 4780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:38,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 1080 Invalid, 4780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4766 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 23:22:38,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29321 states. [2022-11-25 23:22:38,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29321 to 25304. [2022-11-25 23:22:38,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25304 states, 25261 states have (on average 2.208661573176042) internal successors, (55793), 25303 states have internal predecessors, (55793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:38,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25304 states to 25304 states and 55793 transitions. [2022-11-25 23:22:38,537 INFO L78 Accepts]: Start accepts. Automaton has 25304 states and 55793 transitions. Word has length 32 [2022-11-25 23:22:38,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:38,537 INFO L495 AbstractCegarLoop]: Abstraction has 25304 states and 55793 transitions. [2022-11-25 23:22:38,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:38,537 INFO L276 IsEmpty]: Start isEmpty. Operand 25304 states and 55793 transitions. [2022-11-25 23:22:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:22:38,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:38,541 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] [2022-11-25 23:22:38,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-25 23:22:38,541 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:22:38,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash 2049295712, now seen corresponding path program 19 times [2022-11-25 23:22:38,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:38,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329634614] [2022-11-25 23:22:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:39,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:39,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:39,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329634614] [2022-11-25 23:22:39,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329634614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:39,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:39,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:22:39,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693349752] [2022-11-25 23:22:39,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:39,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:22:39,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:39,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:22:39,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:22:39,677 INFO L87 Difference]: Start difference. First operand 25304 states and 55793 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:44,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:44,518 INFO L93 Difference]: Finished difference Result 36311 states and 78891 transitions. [2022-11-25 23:22:44,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 23:22:44,518 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:22:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:44,574 INFO L225 Difference]: With dead ends: 36311 [2022-11-25 23:22:44,574 INFO L226 Difference]: Without dead ends: 36307 [2022-11-25 23:22:44,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=292, Invalid=764, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:22:44,574 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 935 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:44,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1137 Invalid, 3583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [479 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-25 23:22:44,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36307 states. [2022-11-25 23:22:44,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36307 to 27374. [2022-11-25 23:22:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27374 states, 27331 states have (on average 2.2164940909589843) internal successors, (60579), 27373 states have internal predecessors, (60579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27374 states to 27374 states and 60579 transitions. [2022-11-25 23:22:45,040 INFO L78 Accepts]: Start accepts. Automaton has 27374 states and 60579 transitions. Word has length 32 [2022-11-25 23:22:45,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:45,040 INFO L495 AbstractCegarLoop]: Abstraction has 27374 states and 60579 transitions. [2022-11-25 23:22:45,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:45,040 INFO L276 IsEmpty]: Start isEmpty. Operand 27374 states and 60579 transitions. [2022-11-25 23:22:45,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:22:45,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:45,044 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] [2022-11-25 23:22:45,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-25 23:22:45,045 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:22:45,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:45,045 INFO L85 PathProgramCache]: Analyzing trace with hash -614459190, now seen corresponding path program 20 times [2022-11-25 23:22:45,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:45,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759577351] [2022-11-25 23:22:45,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:45,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:45,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:45,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:45,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759577351] [2022-11-25 23:22:45,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759577351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:45,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:45,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:22:45,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866568116] [2022-11-25 23:22:45,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:45,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:22:45,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:45,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:22:45,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:22:45,889 INFO L87 Difference]: Start difference. First operand 27374 states and 60579 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:55,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:55,138 INFO L93 Difference]: Finished difference Result 43337 states and 93748 transitions. [2022-11-25 23:22:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-25 23:22:55,138 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:22:55,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:55,208 INFO L225 Difference]: With dead ends: 43337 [2022-11-25 23:22:55,208 INFO L226 Difference]: Without dead ends: 43330 [2022-11-25 23:22:55,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=951, Invalid=3209, Unknown=0, NotChecked=0, Total=4160 [2022-11-25 23:22:55,209 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1322 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 6265 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 6922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 6265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:55,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 2149 Invalid, 6922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 6265 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-25 23:22:55,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43330 states. [2022-11-25 23:22:55,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43330 to 31590. [2022-11-25 23:22:55,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31590 states, 31547 states have (on average 2.2178971059054744) internal successors, (69968), 31589 states have internal predecessors, (69968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:55,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31590 states to 31590 states and 69968 transitions. [2022-11-25 23:22:55,860 INFO L78 Accepts]: Start accepts. Automaton has 31590 states and 69968 transitions. Word has length 32 [2022-11-25 23:22:55,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:55,860 INFO L495 AbstractCegarLoop]: Abstraction has 31590 states and 69968 transitions. [2022-11-25 23:22:55,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:55,860 INFO L276 IsEmpty]: Start isEmpty. Operand 31590 states and 69968 transitions. [2022-11-25 23:22:55,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:22:55,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:55,865 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] [2022-11-25 23:22:55,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-25 23:22:55,865 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:22:55,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:55,866 INFO L85 PathProgramCache]: Analyzing trace with hash -734261150, now seen corresponding path program 35 times [2022-11-25 23:22:55,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:55,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670284211] [2022-11-25 23:22:55,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:55,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:57,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:57,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:57,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670284211] [2022-11-25 23:22:57,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670284211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:57,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:57,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:22:57,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011966279] [2022-11-25 23:22:57,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:57,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:22:57,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:57,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:22:57,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:22:57,127 INFO L87 Difference]: Start difference. First operand 31590 states and 69968 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:03,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:03,052 INFO L93 Difference]: Finished difference Result 36995 states and 80450 transitions. [2022-11-25 23:23:03,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:23:03,053 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:23:03,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:03,107 INFO L225 Difference]: With dead ends: 36995 [2022-11-25 23:23:03,108 INFO L226 Difference]: Without dead ends: 36995 [2022-11-25 23:23:03,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:23:03,108 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 1234 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 4799 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 4847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:03,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 2193 Invalid, 4847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4799 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-25 23:23:03,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36995 states. [2022-11-25 23:23:03,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36995 to 30762. [2022-11-25 23:23:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30762 states, 30719 states have (on average 2.2182362707119374) internal successors, (68142), 30761 states have internal predecessors, (68142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30762 states to 30762 states and 68142 transitions. [2022-11-25 23:23:03,578 INFO L78 Accepts]: Start accepts. Automaton has 30762 states and 68142 transitions. Word has length 32 [2022-11-25 23:23:03,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:03,578 INFO L495 AbstractCegarLoop]: Abstraction has 30762 states and 68142 transitions. [2022-11-25 23:23:03,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:03,579 INFO L276 IsEmpty]: Start isEmpty. Operand 30762 states and 68142 transitions. [2022-11-25 23:23:03,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:23:03,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:03,583 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] [2022-11-25 23:23:03,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-25 23:23:03,584 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:23:03,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:03,584 INFO L85 PathProgramCache]: Analyzing trace with hash -608661700, now seen corresponding path program 36 times [2022-11-25 23:23:03,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:03,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555537902] [2022-11-25 23:23:03,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:03,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:04,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:04,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555537902] [2022-11-25 23:23:04,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555537902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:04,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:04,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:23:04,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365050781] [2022-11-25 23:23:04,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:04,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:23:04,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:04,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:23:04,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:23:04,857 INFO L87 Difference]: Start difference. First operand 30762 states and 68142 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:12,115 INFO L93 Difference]: Finished difference Result 35841 states and 78071 transitions. [2022-11-25 23:23:12,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:23:12,116 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:23:12,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:12,176 INFO L225 Difference]: With dead ends: 35841 [2022-11-25 23:23:12,176 INFO L226 Difference]: Without dead ends: 35841 [2022-11-25 23:23:12,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:23:12,177 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1079 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 6338 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 6377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 6338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:12,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 2024 Invalid, 6377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 6338 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-25 23:23:12,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35841 states. [2022-11-25 23:23:12,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35841 to 30759. [2022-11-25 23:23:12,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30759 states, 30716 states have (on average 2.2181924729782523) internal successors, (68134), 30758 states have internal predecessors, (68134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:12,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30759 states to 30759 states and 68134 transitions. [2022-11-25 23:23:12,621 INFO L78 Accepts]: Start accepts. Automaton has 30759 states and 68134 transitions. Word has length 32 [2022-11-25 23:23:12,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:12,621 INFO L495 AbstractCegarLoop]: Abstraction has 30759 states and 68134 transitions. [2022-11-25 23:23:12,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:12,621 INFO L276 IsEmpty]: Start isEmpty. Operand 30759 states and 68134 transitions. [2022-11-25 23:23:12,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:23:12,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:12,626 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] [2022-11-25 23:23:12,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-25 23:23:12,626 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:23:12,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:12,626 INFO L85 PathProgramCache]: Analyzing trace with hash -293175010, now seen corresponding path program 37 times [2022-11-25 23:23:12,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:12,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849638721] [2022-11-25 23:23:12,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:12,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:13,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:13,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:13,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849638721] [2022-11-25 23:23:13,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849638721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:13,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:13,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:23:13,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842238082] [2022-11-25 23:23:13,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:13,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:23:13,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:13,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:23:13,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:23:13,855 INFO L87 Difference]: Start difference. First operand 30759 states and 68134 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:19,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:19,541 INFO L93 Difference]: Finished difference Result 35904 states and 78193 transitions. [2022-11-25 23:23:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:23:19,542 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:23:19,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:19,600 INFO L225 Difference]: With dead ends: 35904 [2022-11-25 23:23:19,600 INFO L226 Difference]: Without dead ends: 35904 [2022-11-25 23:23:19,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:23:19,601 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 987 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 5054 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 5089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 5054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:19,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 2002 Invalid, 5089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 5054 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-25 23:23:19,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35904 states. [2022-11-25 23:23:19,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35904 to 30756. [2022-11-25 23:23:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30756 states, 30713 states have (on average 2.218148666688373) internal successors, (68126), 30755 states have internal predecessors, (68126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:20,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30756 states to 30756 states and 68126 transitions. [2022-11-25 23:23:20,056 INFO L78 Accepts]: Start accepts. Automaton has 30756 states and 68126 transitions. Word has length 32 [2022-11-25 23:23:20,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:20,057 INFO L495 AbstractCegarLoop]: Abstraction has 30756 states and 68126 transitions. [2022-11-25 23:23:20,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:20,057 INFO L276 IsEmpty]: Start isEmpty. Operand 30756 states and 68126 transitions. [2022-11-25 23:23:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:23:20,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:20,064 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] [2022-11-25 23:23:20,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-25 23:23:20,064 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:23:20,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:20,065 INFO L85 PathProgramCache]: Analyzing trace with hash -738249028, now seen corresponding path program 38 times [2022-11-25 23:23:20,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:20,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630574379] [2022-11-25 23:23:20,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:20,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:21,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:21,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630574379] [2022-11-25 23:23:21,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630574379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:21,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:21,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:23:21,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899913969] [2022-11-25 23:23:21,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:21,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:23:21,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:21,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:23:21,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:23:21,540 INFO L87 Difference]: Start difference. First operand 30756 states and 68126 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:26,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:26,818 INFO L93 Difference]: Finished difference Result 35918 states and 78219 transitions. [2022-11-25 23:23:26,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:23:26,819 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:23:26,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:26,876 INFO L225 Difference]: With dead ends: 35918 [2022-11-25 23:23:26,876 INFO L226 Difference]: Without dead ends: 35918 [2022-11-25 23:23:26,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:23:26,876 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 819 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 4453 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 4494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 4453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:26,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 2113 Invalid, 4494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 4453 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 23:23:26,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35918 states. [2022-11-25 23:23:27,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35918 to 30531. [2022-11-25 23:23:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30531 states, 30488 states have (on average 2.218774599842561) internal successors, (67646), 30530 states have internal predecessors, (67646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:27,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30531 states to 30531 states and 67646 transitions. [2022-11-25 23:23:27,313 INFO L78 Accepts]: Start accepts. Automaton has 30531 states and 67646 transitions. Word has length 32 [2022-11-25 23:23:27,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:27,313 INFO L495 AbstractCegarLoop]: Abstraction has 30531 states and 67646 transitions. [2022-11-25 23:23:27,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:27,314 INFO L276 IsEmpty]: Start isEmpty. Operand 30531 states and 67646 transitions. [2022-11-25 23:23:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:23:27,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:27,318 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] [2022-11-25 23:23:27,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-25 23:23:27,318 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:23:27,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:27,319 INFO L85 PathProgramCache]: Analyzing trace with hash 811398290, now seen corresponding path program 21 times [2022-11-25 23:23:27,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:27,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811631072] [2022-11-25 23:23:27,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:27,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:28,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:28,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811631072] [2022-11-25 23:23:28,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811631072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:28,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:28,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:23:28,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860289875] [2022-11-25 23:23:28,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:28,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:23:28,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:28,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:23:28,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:23:28,178 INFO L87 Difference]: Start difference. First operand 30531 states and 67646 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:35,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:35,890 INFO L93 Difference]: Finished difference Result 47020 states and 102748 transitions. [2022-11-25 23:23:35,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-25 23:23:35,891 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:23:35,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:35,967 INFO L225 Difference]: With dead ends: 47020 [2022-11-25 23:23:35,968 INFO L226 Difference]: Without dead ends: 47013 [2022-11-25 23:23:35,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=740, Invalid=2230, Unknown=0, NotChecked=0, Total=2970 [2022-11-25 23:23:35,968 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1185 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 5255 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 5712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 5255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:35,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 1607 Invalid, 5712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 5255 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-25 23:23:36,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47013 states. [2022-11-25 23:23:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47013 to 35396. [2022-11-25 23:23:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35396 states, 35353 states have (on average 2.2280711679348286) internal successors, (78769), 35395 states have internal predecessors, (78769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:36,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35396 states to 35396 states and 78769 transitions. [2022-11-25 23:23:36,639 INFO L78 Accepts]: Start accepts. Automaton has 35396 states and 78769 transitions. Word has length 32 [2022-11-25 23:23:36,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:36,639 INFO L495 AbstractCegarLoop]: Abstraction has 35396 states and 78769 transitions. [2022-11-25 23:23:36,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:36,639 INFO L276 IsEmpty]: Start isEmpty. Operand 35396 states and 78769 transitions. [2022-11-25 23:23:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:23:36,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:36,645 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] [2022-11-25 23:23:36,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-25 23:23:36,645 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:23:36,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:36,646 INFO L85 PathProgramCache]: Analyzing trace with hash -2013552828, now seen corresponding path program 22 times [2022-11-25 23:23:36,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:36,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799773759] [2022-11-25 23:23:36,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:36,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:37,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:37,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799773759] [2022-11-25 23:23:37,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799773759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:37,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:37,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:23:37,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23128213] [2022-11-25 23:23:37,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:37,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:23:37,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:37,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:23:37,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:23:37,692 INFO L87 Difference]: Start difference. First operand 35396 states and 78769 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:43,817 INFO L93 Difference]: Finished difference Result 52563 states and 116158 transitions. [2022-11-25 23:23:43,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-25 23:23:43,818 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:23:43,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:44,074 INFO L225 Difference]: With dead ends: 52563 [2022-11-25 23:23:44,074 INFO L226 Difference]: Without dead ends: 52559 [2022-11-25 23:23:44,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=419, Invalid=987, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 23:23:44,075 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 849 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 4817 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 5096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 4817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:44,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 709 Invalid, 5096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 4817 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 23:23:44,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52559 states. [2022-11-25 23:23:44,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52559 to 36018. [2022-11-25 23:23:44,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36018 states, 35975 states have (on average 2.2310215427380125) internal successors, (80261), 36017 states have internal predecessors, (80261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:44,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36018 states to 36018 states and 80261 transitions. [2022-11-25 23:23:44,597 INFO L78 Accepts]: Start accepts. Automaton has 36018 states and 80261 transitions. Word has length 32 [2022-11-25 23:23:44,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:44,598 INFO L495 AbstractCegarLoop]: Abstraction has 36018 states and 80261 transitions. [2022-11-25 23:23:44,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:44,598 INFO L276 IsEmpty]: Start isEmpty. Operand 36018 states and 80261 transitions. [2022-11-25 23:23:44,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:23:44,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:44,603 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] [2022-11-25 23:23:44,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-25 23:23:44,603 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:23:44,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:44,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1103170412, now seen corresponding path program 23 times [2022-11-25 23:23:44,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:44,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236488950] [2022-11-25 23:23:44,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:44,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:45,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:45,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:45,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236488950] [2022-11-25 23:23:45,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236488950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:45,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:45,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:23:45,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776050663] [2022-11-25 23:23:45,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:45,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:23:45,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:45,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:23:45,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:23:45,574 INFO L87 Difference]: Start difference. First operand 36018 states and 80261 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:50,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:50,819 INFO L93 Difference]: Finished difference Result 46230 states and 101339 transitions. [2022-11-25 23:23:50,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:23:50,820 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:23:50,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:50,899 INFO L225 Difference]: With dead ends: 46230 [2022-11-25 23:23:50,899 INFO L226 Difference]: Without dead ends: 46226 [2022-11-25 23:23:50,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=355, Invalid=905, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:23:50,899 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1225 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 3130 mSolverCounterSat, 691 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 3821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 3130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:50,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 918 Invalid, 3821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [691 Valid, 3130 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 23:23:50,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46226 states. [2022-11-25 23:23:51,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46226 to 36905. [2022-11-25 23:23:51,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36905 states, 36862 states have (on average 2.232895664912376) internal successors, (82309), 36904 states have internal predecessors, (82309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:51,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36905 states to 36905 states and 82309 transitions. [2022-11-25 23:23:51,439 INFO L78 Accepts]: Start accepts. Automaton has 36905 states and 82309 transitions. Word has length 32 [2022-11-25 23:23:51,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:51,439 INFO L495 AbstractCegarLoop]: Abstraction has 36905 states and 82309 transitions. [2022-11-25 23:23:51,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:51,439 INFO L276 IsEmpty]: Start isEmpty. Operand 36905 states and 82309 transitions. [2022-11-25 23:23:51,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:23:51,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:51,444 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] [2022-11-25 23:23:51,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-25 23:23:51,444 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:23:51,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:51,445 INFO L85 PathProgramCache]: Analyzing trace with hash 938047768, now seen corresponding path program 39 times [2022-11-25 23:23:51,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:51,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335619681] [2022-11-25 23:23:51,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:51,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:52,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:52,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:52,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335619681] [2022-11-25 23:23:52,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335619681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:52,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:52,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:23:52,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365539571] [2022-11-25 23:23:52,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:52,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:23:52,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:52,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:23:52,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:23:52,674 INFO L87 Difference]: Start difference. First operand 36905 states and 82309 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:58,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:58,489 INFO L93 Difference]: Finished difference Result 43382 states and 95507 transitions. [2022-11-25 23:23:58,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:23:58,490 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:23:58,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:58,560 INFO L225 Difference]: With dead ends: 43382 [2022-11-25 23:23:58,560 INFO L226 Difference]: Without dead ends: 43382 [2022-11-25 23:23:58,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:23:58,560 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 871 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 4981 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 5014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:58,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1556 Invalid, 5014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 4981 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-25 23:23:58,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43382 states. [2022-11-25 23:23:58,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43382 to 36916. [2022-11-25 23:23:59,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36916 states, 36873 states have (on average 2.232853307298023) internal successors, (82332), 36915 states have internal predecessors, (82332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36916 states to 36916 states and 82332 transitions. [2022-11-25 23:23:59,087 INFO L78 Accepts]: Start accepts. Automaton has 36916 states and 82332 transitions. Word has length 32 [2022-11-25 23:23:59,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:59,088 INFO L495 AbstractCegarLoop]: Abstraction has 36916 states and 82332 transitions. [2022-11-25 23:23:59,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand 36916 states and 82332 transitions. [2022-11-25 23:23:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:23:59,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:59,093 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] [2022-11-25 23:23:59,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-25 23:23:59,093 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:23:59,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:59,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1042067056, now seen corresponding path program 24 times [2022-11-25 23:23:59,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:59,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475117800] [2022-11-25 23:23:59,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:59,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:00,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:00,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:00,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475117800] [2022-11-25 23:24:00,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475117800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:00,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:00,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:24:00,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38451108] [2022-11-25 23:24:00,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:00,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:24:00,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:00,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:24:00,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:24:00,090 INFO L87 Difference]: Start difference. First operand 36916 states and 82332 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:05,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:05,188 INFO L93 Difference]: Finished difference Result 48264 states and 106113 transitions. [2022-11-25 23:24:05,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 23:24:05,189 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:24:05,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:05,267 INFO L225 Difference]: With dead ends: 48264 [2022-11-25 23:24:05,267 INFO L226 Difference]: Without dead ends: 48260 [2022-11-25 23:24:05,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=292, Invalid=764, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:24:05,268 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 922 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 3489 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 3939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 3489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:05,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1201 Invalid, 3939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 3489 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 23:24:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48260 states. [2022-11-25 23:24:05,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48260 to 38688. [2022-11-25 23:24:05,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38688 states, 38645 states have (on average 2.2370293699055503) internal successors, (86450), 38687 states have internal predecessors, (86450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:05,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38688 states to 38688 states and 86450 transitions. [2022-11-25 23:24:05,855 INFO L78 Accepts]: Start accepts. Automaton has 38688 states and 86450 transitions. Word has length 32 [2022-11-25 23:24:05,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:05,855 INFO L495 AbstractCegarLoop]: Abstraction has 38688 states and 86450 transitions. [2022-11-25 23:24:05,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:05,855 INFO L276 IsEmpty]: Start isEmpty. Operand 38688 states and 86450 transitions. [2022-11-25 23:24:05,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:24:05,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:05,860 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] [2022-11-25 23:24:05,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-25 23:24:05,861 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:24:05,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:05,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1403476228, now seen corresponding path program 40 times [2022-11-25 23:24:05,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:05,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934301952] [2022-11-25 23:24:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:05,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:07,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:07,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:07,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934301952] [2022-11-25 23:24:07,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934301952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:07,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:07,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:24:07,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116471298] [2022-11-25 23:24:07,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:07,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:24:07,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:07,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:24:07,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:24:07,616 INFO L87 Difference]: Start difference. First operand 38688 states and 86450 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:13,645 INFO L93 Difference]: Finished difference Result 44962 states and 99220 transitions. [2022-11-25 23:24:13,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:24:13,646 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:24:13,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:13,879 INFO L225 Difference]: With dead ends: 44962 [2022-11-25 23:24:13,879 INFO L226 Difference]: Without dead ends: 44962 [2022-11-25 23:24:13,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:24:13,880 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 851 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 5058 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 5090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 5058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:13,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1770 Invalid, 5090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 5058 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 23:24:13,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44962 states. [2022-11-25 23:24:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44962 to 38688. [2022-11-25 23:24:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38688 states, 38645 states have (on average 2.2370293699055503) internal successors, (86450), 38687 states have internal predecessors, (86450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:14,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38688 states to 38688 states and 86450 transitions. [2022-11-25 23:24:14,402 INFO L78 Accepts]: Start accepts. Automaton has 38688 states and 86450 transitions. Word has length 32 [2022-11-25 23:24:14,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:14,402 INFO L495 AbstractCegarLoop]: Abstraction has 38688 states and 86450 transitions. [2022-11-25 23:24:14,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:14,402 INFO L276 IsEmpty]: Start isEmpty. Operand 38688 states and 86450 transitions. [2022-11-25 23:24:14,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:24:14,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:14,407 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] [2022-11-25 23:24:14,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-25 23:24:14,407 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:24:14,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:14,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1621687846, now seen corresponding path program 25 times [2022-11-25 23:24:14,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:14,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152614515] [2022-11-25 23:24:14,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:14,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:15,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:15,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:15,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152614515] [2022-11-25 23:24:15,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152614515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:15,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:15,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:24:15,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179082845] [2022-11-25 23:24:15,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:15,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:24:15,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:15,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:24:15,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:24:15,186 INFO L87 Difference]: Start difference. First operand 38688 states and 86450 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:24,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:24,573 INFO L93 Difference]: Finished difference Result 55037 states and 120481 transitions. [2022-11-25 23:24:24,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-25 23:24:24,574 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:24:24,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:24,669 INFO L225 Difference]: With dead ends: 55037 [2022-11-25 23:24:24,669 INFO L226 Difference]: Without dead ends: 55030 [2022-11-25 23:24:24,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=951, Invalid=3209, Unknown=0, NotChecked=0, Total=4160 [2022-11-25 23:24:24,670 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 1425 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 6087 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 6730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 6087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:24,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 2114 Invalid, 6730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 6087 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 23:24:24,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55030 states. [2022-11-25 23:24:25,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55030 to 42557. [2022-11-25 23:24:25,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42557 states, 42514 states have (on average 2.236769064308228) internal successors, (95094), 42556 states have internal predecessors, (95094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:25,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42557 states to 42557 states and 95094 transitions. [2022-11-25 23:24:25,621 INFO L78 Accepts]: Start accepts. Automaton has 42557 states and 95094 transitions. Word has length 32 [2022-11-25 23:24:25,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:25,621 INFO L495 AbstractCegarLoop]: Abstraction has 42557 states and 95094 transitions. [2022-11-25 23:24:25,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:25,621 INFO L276 IsEmpty]: Start isEmpty. Operand 42557 states and 95094 transitions. [2022-11-25 23:24:25,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:24:25,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:25,628 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] [2022-11-25 23:24:25,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-25 23:24:25,628 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:24:25,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:25,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1741489806, now seen corresponding path program 41 times [2022-11-25 23:24:25,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:25,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730870711] [2022-11-25 23:24:25,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:25,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:27,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:27,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:27,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730870711] [2022-11-25 23:24:27,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730870711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:27,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:27,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:24:27,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492497083] [2022-11-25 23:24:27,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:27,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:24:27,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:27,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:24:27,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:24:27,351 INFO L87 Difference]: Start difference. First operand 42557 states and 95094 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:34,471 INFO L93 Difference]: Finished difference Result 48809 states and 107411 transitions. [2022-11-25 23:24:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:24:34,472 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:24:34,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:34,565 INFO L225 Difference]: With dead ends: 48809 [2022-11-25 23:24:34,565 INFO L226 Difference]: Without dead ends: 48809 [2022-11-25 23:24:34,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:24:34,566 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1189 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 5761 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 2264 SdHoareTripleChecker+Invalid, 5806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 5761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:34,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 2264 Invalid, 5806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 5761 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-25 23:24:34,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48809 states. [2022-11-25 23:24:35,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48809 to 42357. [2022-11-25 23:24:35,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42357 states, 42314 states have (on average 2.2367537930708514) internal successors, (94646), 42356 states have internal predecessors, (94646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:35,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42357 states to 42357 states and 94646 transitions. [2022-11-25 23:24:35,332 INFO L78 Accepts]: Start accepts. Automaton has 42357 states and 94646 transitions. Word has length 32 [2022-11-25 23:24:35,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:35,332 INFO L495 AbstractCegarLoop]: Abstraction has 42357 states and 94646 transitions. [2022-11-25 23:24:35,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:35,333 INFO L276 IsEmpty]: Start isEmpty. Operand 42357 states and 94646 transitions. [2022-11-25 23:24:35,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:24:35,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:35,338 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] [2022-11-25 23:24:35,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-25 23:24:35,338 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:24:35,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:35,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1615890356, now seen corresponding path program 42 times [2022-11-25 23:24:35,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:35,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645486098] [2022-11-25 23:24:35,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:35,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:36,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:36,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:36,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645486098] [2022-11-25 23:24:36,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645486098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:36,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:36,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:24:36,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368766044] [2022-11-25 23:24:36,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:36,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:24:36,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:36,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:24:36,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:24:36,782 INFO L87 Difference]: Start difference. First operand 42357 states and 94646 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:43,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:43,269 INFO L93 Difference]: Finished difference Result 48285 states and 106414 transitions. [2022-11-25 23:24:43,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:24:43,269 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:24:43,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:43,343 INFO L225 Difference]: With dead ends: 48285 [2022-11-25 23:24:43,343 INFO L226 Difference]: Without dead ends: 48285 [2022-11-25 23:24:43,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:24:43,344 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 971 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 5622 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 5654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 5622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:43,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 2190 Invalid, 5654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 5622 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-25 23:24:43,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48285 states. [2022-11-25 23:24:43,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48285 to 42354. [2022-11-25 23:24:43,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42354 states, 42311 states have (on average 2.23672331072298) internal successors, (94638), 42353 states have internal predecessors, (94638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42354 states to 42354 states and 94638 transitions. [2022-11-25 23:24:44,228 INFO L78 Accepts]: Start accepts. Automaton has 42354 states and 94638 transitions. Word has length 32 [2022-11-25 23:24:44,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:44,228 INFO L495 AbstractCegarLoop]: Abstraction has 42354 states and 94638 transitions. [2022-11-25 23:24:44,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:44,228 INFO L276 IsEmpty]: Start isEmpty. Operand 42354 states and 94638 transitions. [2022-11-25 23:24:44,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:24:44,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:44,235 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] [2022-11-25 23:24:44,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-25 23:24:44,235 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:24:44,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:44,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1300403666, now seen corresponding path program 43 times [2022-11-25 23:24:44,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:44,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830631077] [2022-11-25 23:24:44,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:44,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:45,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:45,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:45,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830631077] [2022-11-25 23:24:45,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830631077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:45,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:45,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:24:45,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104223382] [2022-11-25 23:24:45,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:45,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:24:45,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:45,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:24:45,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:24:45,540 INFO L87 Difference]: Start difference. First operand 42354 states and 94638 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:50,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:50,655 INFO L93 Difference]: Finished difference Result 48345 states and 106530 transitions. [2022-11-25 23:24:50,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:24:50,656 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:24:50,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:50,731 INFO L225 Difference]: With dead ends: 48345 [2022-11-25 23:24:50,731 INFO L226 Difference]: Without dead ends: 48345 [2022-11-25 23:24:50,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:24:50,732 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 987 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 4375 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:50,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 2049 Invalid, 4411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4375 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 23:24:50,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48345 states. [2022-11-25 23:24:51,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48345 to 42351. [2022-11-25 23:24:51,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42351 states, 42308 states have (on average 2.236692824052189) internal successors, (94630), 42350 states have internal predecessors, (94630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:51,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42351 states to 42351 states and 94630 transitions. [2022-11-25 23:24:51,587 INFO L78 Accepts]: Start accepts. Automaton has 42351 states and 94630 transitions. Word has length 32 [2022-11-25 23:24:51,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:51,587 INFO L495 AbstractCegarLoop]: Abstraction has 42351 states and 94630 transitions. [2022-11-25 23:24:51,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 42351 states and 94630 transitions. [2022-11-25 23:24:51,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:24:51,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:51,598 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, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:51,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-25 23:24:51,598 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:24:51,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:51,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1745477684, now seen corresponding path program 44 times [2022-11-25 23:24:51,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:51,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8338473] [2022-11-25 23:24:51,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:51,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:53,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:53,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:53,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8338473] [2022-11-25 23:24:53,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8338473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:53,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:53,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:24:53,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137848308] [2022-11-25 23:24:53,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:53,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:24:53,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:53,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:24:53,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:24:53,128 INFO L87 Difference]: Start difference. First operand 42351 states and 94630 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:58,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:58,243 INFO L93 Difference]: Finished difference Result 48372 states and 106582 transitions. [2022-11-25 23:24:58,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:24:58,243 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:24:58,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:58,322 INFO L225 Difference]: With dead ends: 48372 [2022-11-25 23:24:58,322 INFO L226 Difference]: Without dead ends: 48372 [2022-11-25 23:24:58,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:24:58,322 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 932 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 4270 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 4314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:58,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 2046 Invalid, 4314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 4270 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 23:24:58,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48372 states. [2022-11-25 23:24:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48372 to 39688. [2022-11-25 23:24:58,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39688 states, 39645 states have (on average 2.2364989279858745) internal successors, (88666), 39687 states have internal predecessors, (88666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:59,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39688 states to 39688 states and 88666 transitions. [2022-11-25 23:24:59,051 INFO L78 Accepts]: Start accepts. Automaton has 39688 states and 88666 transitions. Word has length 32 [2022-11-25 23:24:59,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:59,051 INFO L495 AbstractCegarLoop]: Abstraction has 39688 states and 88666 transitions. [2022-11-25 23:24:59,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:59,052 INFO L276 IsEmpty]: Start isEmpty. Operand 39688 states and 88666 transitions. [2022-11-25 23:24:59,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:24:59,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:59,057 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] [2022-11-25 23:24:59,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-25 23:24:59,057 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:24:59,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:59,057 INFO L85 PathProgramCache]: Analyzing trace with hash -195830366, now seen corresponding path program 26 times [2022-11-25 23:24:59,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:59,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430177511] [2022-11-25 23:24:59,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:59,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:00,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:00,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430177511] [2022-11-25 23:25:00,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430177511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:00,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:00,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:25:00,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337335484] [2022-11-25 23:25:00,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:00,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:25:00,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:00,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:25:00,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:25:00,121 INFO L87 Difference]: Start difference. First operand 39688 states and 88666 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:08,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:08,383 INFO L93 Difference]: Finished difference Result 56806 states and 125153 transitions. [2022-11-25 23:25:08,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-25 23:25:08,384 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:25:08,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:08,475 INFO L225 Difference]: With dead ends: 56806 [2022-11-25 23:25:08,475 INFO L226 Difference]: Without dead ends: 56799 [2022-11-25 23:25:08,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=740, Invalid=2230, Unknown=0, NotChecked=0, Total=2970 [2022-11-25 23:25:08,475 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1114 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 5753 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 6132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 5753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:08,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1675 Invalid, 6132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 5753 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 23:25:08,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56799 states. [2022-11-25 23:25:09,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56799 to 43340. [2022-11-25 23:25:09,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43340 states, 43297 states have (on average 2.241194540037416) internal successors, (97037), 43339 states have internal predecessors, (97037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:09,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43340 states to 43340 states and 97037 transitions. [2022-11-25 23:25:09,194 INFO L78 Accepts]: Start accepts. Automaton has 43340 states and 97037 transitions. Word has length 32 [2022-11-25 23:25:09,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:09,194 INFO L495 AbstractCegarLoop]: Abstraction has 43340 states and 97037 transitions. [2022-11-25 23:25:09,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:09,194 INFO L276 IsEmpty]: Start isEmpty. Operand 43340 states and 97037 transitions. [2022-11-25 23:25:09,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:25:09,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:09,199 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] [2022-11-25 23:25:09,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-25 23:25:09,199 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:25:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:09,200 INFO L85 PathProgramCache]: Analyzing trace with hash -315632326, now seen corresponding path program 45 times [2022-11-25 23:25:09,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:09,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660006742] [2022-11-25 23:25:09,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:09,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:10,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:10,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:10,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660006742] [2022-11-25 23:25:10,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660006742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:10,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:10,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:25:10,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086238038] [2022-11-25 23:25:10,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:10,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:25:10,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:10,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:25:10,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:25:10,939 INFO L87 Difference]: Start difference. First operand 43340 states and 97037 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:16,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:16,823 INFO L93 Difference]: Finished difference Result 51434 states and 113812 transitions. [2022-11-25 23:25:16,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:25:16,823 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:25:16,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:16,911 INFO L225 Difference]: With dead ends: 51434 [2022-11-25 23:25:16,911 INFO L226 Difference]: Without dead ends: 51434 [2022-11-25 23:25:16,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:25:16,912 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 949 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 4887 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 4918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 4887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:16,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1904 Invalid, 4918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 4887 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-25 23:25:16,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51434 states. [2022-11-25 23:25:17,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51434 to 44434. [2022-11-25 23:25:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44434 states, 44391 states have (on average 2.242323894483116) internal successors, (99539), 44433 states have internal predecessors, (99539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:17,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44434 states to 44434 states and 99539 transitions. [2022-11-25 23:25:17,594 INFO L78 Accepts]: Start accepts. Automaton has 44434 states and 99539 transitions. Word has length 32 [2022-11-25 23:25:17,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:17,594 INFO L495 AbstractCegarLoop]: Abstraction has 44434 states and 99539 transitions. [2022-11-25 23:25:17,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 44434 states and 99539 transitions. [2022-11-25 23:25:17,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:25:17,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:17,599 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] [2022-11-25 23:25:17,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-25 23:25:17,599 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:25:17,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:17,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1274185812, now seen corresponding path program 27 times [2022-11-25 23:25:17,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:17,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882419514] [2022-11-25 23:25:17,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:17,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:18,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:18,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882419514] [2022-11-25 23:25:18,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882419514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:18,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:18,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:25:18,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87522023] [2022-11-25 23:25:18,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:18,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:25:18,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:18,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:25:18,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:25:18,868 INFO L87 Difference]: Start difference. First operand 44434 states and 99539 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:24,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:24,649 INFO L93 Difference]: Finished difference Result 63246 states and 140360 transitions. [2022-11-25 23:25:24,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-25 23:25:24,649 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:25:24,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:24,761 INFO L225 Difference]: With dead ends: 63246 [2022-11-25 23:25:24,761 INFO L226 Difference]: Without dead ends: 63242 [2022-11-25 23:25:24,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=419, Invalid=987, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 23:25:24,762 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 1102 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 3853 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 4421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 3853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:24,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 762 Invalid, 4421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 3853 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 23:25:24,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63242 states. [2022-11-25 23:25:25,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63242 to 50041. [2022-11-25 23:25:25,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50041 states, 49998 states have (on average 2.2521500860034402) internal successors, (112603), 50040 states have internal predecessors, (112603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:25,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50041 states to 50041 states and 112603 transitions. [2022-11-25 23:25:25,676 INFO L78 Accepts]: Start accepts. Automaton has 50041 states and 112603 transitions. Word has length 32 [2022-11-25 23:25:25,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:25,676 INFO L495 AbstractCegarLoop]: Abstraction has 50041 states and 112603 transitions. [2022-11-25 23:25:25,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:25,676 INFO L276 IsEmpty]: Start isEmpty. Operand 50041 states and 112603 transitions. [2022-11-25 23:25:25,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:25:25,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:25,682 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] [2022-11-25 23:25:25,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-25 23:25:25,682 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:25:25,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:25,682 INFO L85 PathProgramCache]: Analyzing trace with hash -979563304, now seen corresponding path program 46 times [2022-11-25 23:25:25,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:25,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880155379] [2022-11-25 23:25:25,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:25,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:27,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:27,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:27,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880155379] [2022-11-25 23:25:27,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880155379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:27,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:27,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:25:27,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793251486] [2022-11-25 23:25:27,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:27,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:25:27,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:27,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:25:27,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:25:27,090 INFO L87 Difference]: Start difference. First operand 50041 states and 112603 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:31,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:31,812 INFO L93 Difference]: Finished difference Result 59906 states and 133982 transitions. [2022-11-25 23:25:31,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 23:25:31,813 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:25:31,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:31,934 INFO L225 Difference]: With dead ends: 59906 [2022-11-25 23:25:31,934 INFO L226 Difference]: Without dead ends: 59906 [2022-11-25 23:25:31,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-11-25 23:25:31,934 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 616 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 5168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:31,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 1157 Invalid, 5168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 23:25:32,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59906 states. [2022-11-25 23:25:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59906 to 50427. [2022-11-25 23:25:32,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50427 states, 50384 states have (on average 2.2524610987615117) internal successors, (113488), 50426 states have internal predecessors, (113488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:33,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50427 states to 50427 states and 113488 transitions. [2022-11-25 23:25:33,060 INFO L78 Accepts]: Start accepts. Automaton has 50427 states and 113488 transitions. Word has length 32 [2022-11-25 23:25:33,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:33,060 INFO L495 AbstractCegarLoop]: Abstraction has 50427 states and 113488 transitions. [2022-11-25 23:25:33,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:33,061 INFO L276 IsEmpty]: Start isEmpty. Operand 50427 states and 113488 transitions. [2022-11-25 23:25:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:25:33,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:33,066 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] [2022-11-25 23:25:33,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-25 23:25:33,066 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:25:33,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:33,067 INFO L85 PathProgramCache]: Analyzing trace with hash 850477204, now seen corresponding path program 28 times [2022-11-25 23:25:33,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:33,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103960881] [2022-11-25 23:25:33,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:33,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:34,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:34,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103960881] [2022-11-25 23:25:34,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103960881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:34,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:34,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:25:34,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933482343] [2022-11-25 23:25:34,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:34,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:25:34,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:34,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:25:34,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:25:34,246 INFO L87 Difference]: Start difference. First operand 50427 states and 113488 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:40,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:40,753 INFO L93 Difference]: Finished difference Result 75558 states and 169139 transitions. [2022-11-25 23:25:40,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-25 23:25:40,753 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 32 [2022-11-25 23:25:40,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:40,882 INFO L225 Difference]: With dead ends: 75558 [2022-11-25 23:25:40,882 INFO L226 Difference]: Without dead ends: 75554 [2022-11-25 23:25:40,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=517, Invalid=1205, Unknown=0, NotChecked=0, Total=1722 [2022-11-25 23:25:40,883 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 821 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 4055 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 4439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 4055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:40,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 738 Invalid, 4439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 4055 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 23:25:40,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75554 states. [2022-11-25 23:25:41,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75554 to 50313. [2022-11-25 23:25:41,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50313 states, 50270 states have (on average 2.2526158742788938) internal successors, (113239), 50312 states have internal predecessors, (113239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:41,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50313 states to 50313 states and 113239 transitions. [2022-11-25 23:25:41,975 INFO L78 Accepts]: Start accepts. Automaton has 50313 states and 113239 transitions. Word has length 32 [2022-11-25 23:25:41,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:41,975 INFO L495 AbstractCegarLoop]: Abstraction has 50313 states and 113239 transitions. [2022-11-25 23:25:41,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:41,975 INFO L276 IsEmpty]: Start isEmpty. Operand 50313 states and 113239 transitions. [2022-11-25 23:25:41,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:25:41,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:41,980 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] [2022-11-25 23:25:41,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-25 23:25:41,980 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:25:41,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:41,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1403271912, now seen corresponding path program 47 times [2022-11-25 23:25:41,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:41,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661922693] [2022-11-25 23:25:41,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:41,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:43,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:43,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661922693] [2022-11-25 23:25:43,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661922693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:43,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:43,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:25:43,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454910501] [2022-11-25 23:25:43,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:43,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:25:43,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:43,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:25:43,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:25:43,583 INFO L87 Difference]: Start difference. First operand 50313 states and 113239 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:50,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:50,576 INFO L93 Difference]: Finished difference Result 64651 states and 144871 transitions. [2022-11-25 23:25:50,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:25:50,577 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 32 [2022-11-25 23:25:50,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:50,691 INFO L225 Difference]: With dead ends: 64651 [2022-11-25 23:25:50,691 INFO L226 Difference]: Without dead ends: 64651 [2022-11-25 23:25:50,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=218, Invalid=652, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:25:50,691 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 906 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 6102 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 6187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 6102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:50,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 1382 Invalid, 6187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 6102 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-25 23:25:50,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64651 states. [2022-11-25 23:25:51,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64651 to 50932. [2022-11-25 23:25:51,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50932 states, 50889 states have (on average 2.253885908546051) internal successors, (114698), 50931 states have internal predecessors, (114698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50932 states to 50932 states and 114698 transitions. [2022-11-25 23:25:51,789 INFO L78 Accepts]: Start accepts. Automaton has 50932 states and 114698 transitions. Word has length 32 [2022-11-25 23:25:51,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:51,790 INFO L495 AbstractCegarLoop]: Abstraction has 50932 states and 114698 transitions. [2022-11-25 23:25:51,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:51,790 INFO L276 IsEmpty]: Start isEmpty. Operand 50932 states and 114698 transitions. [2022-11-25 23:25:51,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:25:51,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:51,797 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] [2022-11-25 23:25:51,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-25 23:25:51,799 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:25:51,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:51,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1377944511, now seen corresponding path program 1 times [2022-11-25 23:25:51,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:51,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460160524] [2022-11-25 23:25:51,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:51,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:52,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:52,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:52,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460160524] [2022-11-25 23:25:52,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460160524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:52,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:52,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:25:52,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731570339] [2022-11-25 23:25:52,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:52,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:25:52,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:52,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:25:52,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:25:52,995 INFO L87 Difference]: Start difference. First operand 50932 states and 114698 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:58,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:58,762 INFO L93 Difference]: Finished difference Result 65006 states and 144907 transitions. [2022-11-25 23:25:58,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:25:58,763 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 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 33 [2022-11-25 23:25:58,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:58,880 INFO L225 Difference]: With dead ends: 65006 [2022-11-25 23:25:58,880 INFO L226 Difference]: Without dead ends: 65006 [2022-11-25 23:25:58,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:25:58,880 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 996 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 5370 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 5451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 5370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:58,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 1273 Invalid, 5451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 5370 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 23:25:59,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65006 states. [2022-11-25 23:25:59,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65006 to 52128. [2022-11-25 23:25:59,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52128 states, 52085 states have (on average 2.253259095708937) internal successors, (117361), 52127 states have internal predecessors, (117361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:59,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52128 states to 52128 states and 117361 transitions. [2022-11-25 23:25:59,891 INFO L78 Accepts]: Start accepts. Automaton has 52128 states and 117361 transitions. Word has length 33 [2022-11-25 23:25:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:59,891 INFO L495 AbstractCegarLoop]: Abstraction has 52128 states and 117361 transitions. [2022-11-25 23:25:59,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 52128 states and 117361 transitions. [2022-11-25 23:25:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:25:59,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:59,898 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] [2022-11-25 23:25:59,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-25 23:25:59,898 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:25:59,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:59,898 INFO L85 PathProgramCache]: Analyzing trace with hash -839170717, now seen corresponding path program 2 times [2022-11-25 23:25:59,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:59,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423844118] [2022-11-25 23:25:59,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:59,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:01,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:01,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423844118] [2022-11-25 23:26:01,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423844118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:01,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:01,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:26:01,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677898334] [2022-11-25 23:26:01,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:01,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:26:01,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:01,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:26:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:26:01,538 INFO L87 Difference]: Start difference. First operand 52128 states and 117361 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:07,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:07,340 INFO L93 Difference]: Finished difference Result 66340 states and 147993 transitions. [2022-11-25 23:26:07,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:26:07,340 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 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 33 [2022-11-25 23:26:07,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:07,457 INFO L225 Difference]: With dead ends: 66340 [2022-11-25 23:26:07,457 INFO L226 Difference]: Without dead ends: 66340 [2022-11-25 23:26:07,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:26:07,457 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 886 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 4990 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 5067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 4990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:07,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 1561 Invalid, 5067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 4990 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 23:26:07,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66340 states. [2022-11-25 23:26:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66340 to 53876. [2022-11-25 23:26:08,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53876 states, 53833 states have (on average 2.2555867218992067) internal successors, (121425), 53875 states have internal predecessors, (121425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53876 states to 53876 states and 121425 transitions. [2022-11-25 23:26:08,547 INFO L78 Accepts]: Start accepts. Automaton has 53876 states and 121425 transitions. Word has length 33 [2022-11-25 23:26:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:08,547 INFO L495 AbstractCegarLoop]: Abstraction has 53876 states and 121425 transitions. [2022-11-25 23:26:08,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:08,548 INFO L276 IsEmpty]: Start isEmpty. Operand 53876 states and 121425 transitions. [2022-11-25 23:26:08,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:26:08,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:08,554 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] [2022-11-25 23:26:08,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-25 23:26:08,554 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:26:08,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:08,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1811194055, now seen corresponding path program 3 times [2022-11-25 23:26:08,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:08,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55014697] [2022-11-25 23:26:08,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:08,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:09,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:09,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55014697] [2022-11-25 23:26:09,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55014697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:09,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:09,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:26:09,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014168820] [2022-11-25 23:26:09,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:09,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:26:09,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:09,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:26:09,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:26:09,776 INFO L87 Difference]: Start difference. First operand 53876 states and 121425 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:15,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:15,488 INFO L93 Difference]: Finished difference Result 66709 states and 148443 transitions. [2022-11-25 23:26:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:26:15,488 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 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 33 [2022-11-25 23:26:15,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:15,605 INFO L225 Difference]: With dead ends: 66709 [2022-11-25 23:26:15,606 INFO L226 Difference]: Without dead ends: 66709 [2022-11-25 23:26:15,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:26:15,606 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1243 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 4690 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 4827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 4690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:15,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 1892 Invalid, 4827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 4690 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 23:26:15,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66709 states. [2022-11-25 23:26:16,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66709 to 52654. [2022-11-25 23:26:16,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52654 states, 52611 states have (on average 2.2579498583946322) internal successors, (118793), 52653 states have internal predecessors, (118793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:16,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52654 states to 52654 states and 118793 transitions. [2022-11-25 23:26:16,736 INFO L78 Accepts]: Start accepts. Automaton has 52654 states and 118793 transitions. Word has length 33 [2022-11-25 23:26:16,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:16,736 INFO L495 AbstractCegarLoop]: Abstraction has 52654 states and 118793 transitions. [2022-11-25 23:26:16,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:16,736 INFO L276 IsEmpty]: Start isEmpty. Operand 52654 states and 118793 transitions. [2022-11-25 23:26:16,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:26:16,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:16,742 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] [2022-11-25 23:26:16,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-25 23:26:16,742 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:26:16,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:16,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1430019047, now seen corresponding path program 4 times [2022-11-25 23:26:16,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:16,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013130701] [2022-11-25 23:26:16,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:16,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:18,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:18,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:18,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013130701] [2022-11-25 23:26:18,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013130701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:18,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:18,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:26:18,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570384026] [2022-11-25 23:26:18,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:18,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:26:18,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:18,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:26:18,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:26:18,259 INFO L87 Difference]: Start difference. First operand 52654 states and 118793 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:24,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:24,457 INFO L93 Difference]: Finished difference Result 61527 states and 136969 transitions. [2022-11-25 23:26:24,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:26:24,457 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 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 33 [2022-11-25 23:26:24,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:24,584 INFO L225 Difference]: With dead ends: 61527 [2022-11-25 23:26:24,584 INFO L226 Difference]: Without dead ends: 61527 [2022-11-25 23:26:24,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:26:24,585 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1115 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 5278 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 5356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 5278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:24,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1703 Invalid, 5356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 5278 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 23:26:24,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61527 states. [2022-11-25 23:26:25,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61527 to 52656. [2022-11-25 23:26:25,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52656 states, 52613 states have (on average 2.2579020394199154) internal successors, (118795), 52655 states have internal predecessors, (118795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:25,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52656 states to 52656 states and 118795 transitions. [2022-11-25 23:26:25,743 INFO L78 Accepts]: Start accepts. Automaton has 52656 states and 118795 transitions. Word has length 33 [2022-11-25 23:26:25,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:25,743 INFO L495 AbstractCegarLoop]: Abstraction has 52656 states and 118795 transitions. [2022-11-25 23:26:25,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:25,743 INFO L276 IsEmpty]: Start isEmpty. Operand 52656 states and 118795 transitions. [2022-11-25 23:26:25,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:26:25,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:25,750 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] [2022-11-25 23:26:25,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-25 23:26:25,750 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:26:25,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:25,751 INFO L85 PathProgramCache]: Analyzing trace with hash -239866249, now seen corresponding path program 5 times [2022-11-25 23:26:25,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:25,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210784335] [2022-11-25 23:26:25,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:25,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:27,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:27,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:27,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210784335] [2022-11-25 23:26:27,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210784335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:27,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:27,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:26:27,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090434157] [2022-11-25 23:26:27,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:27,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:26:27,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:27,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:26:27,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:26:27,491 INFO L87 Difference]: Start difference. First operand 52656 states and 118795 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:33,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:33,138 INFO L93 Difference]: Finished difference Result 61945 states and 137795 transitions. [2022-11-25 23:26:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:26:33,139 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 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 33 [2022-11-25 23:26:33,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:33,246 INFO L225 Difference]: With dead ends: 61945 [2022-11-25 23:26:33,247 INFO L226 Difference]: Without dead ends: 61945 [2022-11-25 23:26:33,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:26:33,247 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 917 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 4935 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 5045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 4935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:33,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 1925 Invalid, 5045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 4935 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 23:26:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61945 states. [2022-11-25 23:26:33,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61945 to 52651. [2022-11-25 23:26:34,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52651 states, 52608 states have (on average 2.257831508515815) internal successors, (118780), 52650 states have internal predecessors, (118780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:34,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52651 states to 52651 states and 118780 transitions. [2022-11-25 23:26:34,131 INFO L78 Accepts]: Start accepts. Automaton has 52651 states and 118780 transitions. Word has length 33 [2022-11-25 23:26:34,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:34,132 INFO L495 AbstractCegarLoop]: Abstraction has 52651 states and 118780 transitions. [2022-11-25 23:26:34,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand 52651 states and 118780 transitions. [2022-11-25 23:26:34,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:26:34,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:34,138 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] [2022-11-25 23:26:34,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-25 23:26:34,138 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:26:34,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:34,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1152258919, now seen corresponding path program 6 times [2022-11-25 23:26:34,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:34,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211924535] [2022-11-25 23:26:34,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:34,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:36,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:36,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211924535] [2022-11-25 23:26:36,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211924535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:36,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:36,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:26:36,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374659382] [2022-11-25 23:26:36,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:36,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:26:36,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:36,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:26:36,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:26:36,286 INFO L87 Difference]: Start difference. First operand 52651 states and 118780 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:42,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:42,058 INFO L93 Difference]: Finished difference Result 62199 states and 138298 transitions. [2022-11-25 23:26:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:26:42,059 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 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 33 [2022-11-25 23:26:42,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:42,170 INFO L225 Difference]: With dead ends: 62199 [2022-11-25 23:26:42,170 INFO L226 Difference]: Without dead ends: 62199 [2022-11-25 23:26:42,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=251, Invalid=871, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:26:42,170 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 904 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 4914 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 5012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:42,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 1799 Invalid, 5012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4914 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 23:26:42,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62199 states. [2022-11-25 23:26:42,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62199 to 52102. [2022-11-25 23:26:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52102 states, 52059 states have (on average 2.2591098561247813) internal successors, (117607), 52101 states have internal predecessors, (117607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:43,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52102 states to 52102 states and 117607 transitions. [2022-11-25 23:26:43,323 INFO L78 Accepts]: Start accepts. Automaton has 52102 states and 117607 transitions. Word has length 33 [2022-11-25 23:26:43,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:43,324 INFO L495 AbstractCegarLoop]: Abstraction has 52102 states and 117607 transitions. [2022-11-25 23:26:43,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:43,324 INFO L276 IsEmpty]: Start isEmpty. Operand 52102 states and 117607 transitions. [2022-11-25 23:26:43,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:26:43,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:43,333 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] [2022-11-25 23:26:43,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-25 23:26:43,333 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:26:43,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:43,333 INFO L85 PathProgramCache]: Analyzing trace with hash -559285135, now seen corresponding path program 7 times [2022-11-25 23:26:43,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:43,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819901326] [2022-11-25 23:26:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:43,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:44,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:44,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:44,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819901326] [2022-11-25 23:26:44,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819901326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:44,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:44,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:26:44,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385991809] [2022-11-25 23:26:44,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:44,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:26:44,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:44,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:26:44,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:26:44,707 INFO L87 Difference]: Start difference. First operand 52102 states and 117607 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:50,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:50,542 INFO L93 Difference]: Finished difference Result 67204 states and 150352 transitions. [2022-11-25 23:26:50,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:26:50,543 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 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 33 [2022-11-25 23:26:50,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:50,666 INFO L225 Difference]: With dead ends: 67204 [2022-11-25 23:26:50,666 INFO L226 Difference]: Without dead ends: 67204 [2022-11-25 23:26:50,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:26:50,666 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 889 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 5241 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 5309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 5241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:50,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1683 Invalid, 5309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 5241 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-25 23:26:50,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67204 states. [2022-11-25 23:26:51,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67204 to 54952. [2022-11-25 23:26:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54952 states, 54909 states have (on average 2.2630534156513504) internal successors, (124262), 54951 states have internal predecessors, (124262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:51,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54952 states to 54952 states and 124262 transitions. [2022-11-25 23:26:51,857 INFO L78 Accepts]: Start accepts. Automaton has 54952 states and 124262 transitions. Word has length 33 [2022-11-25 23:26:51,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:51,857 INFO L495 AbstractCegarLoop]: Abstraction has 54952 states and 124262 transitions. [2022-11-25 23:26:51,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:51,857 INFO L276 IsEmpty]: Start isEmpty. Operand 54952 states and 124262 transitions. [2022-11-25 23:26:51,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:26:51,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:51,863 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] [2022-11-25 23:26:51,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-25 23:26:51,863 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 23:26:51,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:51,864 INFO L85 PathProgramCache]: Analyzing trace with hash -546869295, now seen corresponding path program 8 times [2022-11-25 23:26:51,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:51,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650615158] [2022-11-25 23:26:51,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:51,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat