./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh --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 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- 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-2329fc7 [2022-12-14 11:20:51,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:20:51,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:20:51,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:20:51,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:20:51,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:20:51,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:20:51,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:20:51,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:20:51,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:20:51,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:20:51,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:20:51,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:20:51,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:20:51,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:20:51,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:20:51,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:20:51,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:20:51,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:20:51,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:20:51,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:20:51,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:20:51,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:20:51,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:20:51,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:20:51,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:20:51,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:20:51,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:20:51,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:20:51,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:20:51,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:20:51,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:20:51,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:20:51,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:20:51,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:20:51,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:20:51,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:20:51,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:20:51,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:20:51,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:20:51,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:20:51,096 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 11:20:51,109 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:20:51,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:20:51,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:20:51,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:20:51,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:20:51,110 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:20:51,110 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:20:51,110 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:20:51,110 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:20:51,111 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:20:51,111 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:20:51,111 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:20:51,111 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:20:51,111 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:20:51,111 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:20:51,111 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:20:51,111 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:20:51,111 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:20:51,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:20:51,112 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:20:51,112 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:20:51,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:20:51,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:20:51,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:20:51,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:20:51,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:20:51,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:20:51,113 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 11:20:51,113 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:20:51,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:20:51,113 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:20:51,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:20:51,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:20:51,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:20:51,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:20:51,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:20:51,114 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:20:51,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:20:51,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:20:51,114 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:20:51,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:20:51,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:20:51,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:20:51,114 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_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2022-12-14 11:20:51,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:20:51,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:20:51,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:20:51,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:20:51,299 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:20:51,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-12-14 11:20:53,880 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:20:54,039 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:20:54,039 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-12-14 11:20:54,049 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/data/ce6641fb7/07df804dfeed46bfa28ca8ca52498a49/FLAG336172d31 [2022-12-14 11:20:54,059 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/data/ce6641fb7/07df804dfeed46bfa28ca8ca52498a49 [2022-12-14 11:20:54,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:20:54,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:20:54,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:20:54,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:20:54,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:20:54,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49120841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54, skipping insertion in model container [2022-12-14 11:20:54,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:20:54,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:20:54,192 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:20:54,335 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-12-14 11:20:54,337 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-12-14 11:20:54,337 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-12-14 11:20:54,340 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-12-14 11:20:54,341 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-12-14 11:20:54,342 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-12-14 11:20:54,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:20:54,351 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:20:54,360 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:20:54,385 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-12-14 11:20:54,386 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-12-14 11:20:54,386 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-12-14 11:20:54,388 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-12-14 11:20:54,389 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-12-14 11:20:54,389 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_2375965d-7319-4f25-bb17-e3a758aa1f08/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-12-14 11:20:54,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:20:54,420 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:20:54,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54 WrapperNode [2022-12-14 11:20:54,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:20:54,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:20:54,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:20:54,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:20:54,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,461 INFO L138 Inliner]: procedures = 225, calls = 43, calls flagged for inlining = 10, calls inlined = 7, statements flattened = 198 [2022-12-14 11:20:54,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:20:54,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:20:54,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:20:54,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:20:54,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,488 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:20:54,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:20:54,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:20:54,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:20:54,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (1/1) ... [2022-12-14 11:20:54,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:20:54,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:20:54,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:20:54,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2375965d-7319-4f25-bb17-e3a758aa1f08/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:20:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:20:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:20:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:20:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:20:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:20:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:20:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2022-12-14 11:20:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2022-12-14 11:20:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:20:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:20:54,554 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 11:20:54,647 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:20:54,649 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:20:54,991 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:20:55,000 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:20:55,000 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 11:20:55,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:55 BoogieIcfgContainer [2022-12-14 11:20:55,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:20:55,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:20:55,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:20:55,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:20:55,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:20:54" (1/3) ... [2022-12-14 11:20:55,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7c1d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:20:55, skipping insertion in model container [2022-12-14 11:20:55,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:54" (2/3) ... [2022-12-14 11:20:55,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7c1d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:20:55, skipping insertion in model container [2022-12-14 11:20:55,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:55" (3/3) ... [2022-12-14 11:20:55,011 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2022-12-14 11:20:55,020 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 11:20:55,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:20:55,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-12-14 11:20:55,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 11:20:55,116 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 11:20:55,142 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:20:55,154 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 238 transitions, 484 flow [2022-12-14 11:20:55,156 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 238 transitions, 484 flow [2022-12-14 11:20:55,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 238 transitions, 484 flow [2022-12-14 11:20:55,225 INFO L130 PetriNetUnfolder]: 9/237 cut-off events. [2022-12-14 11:20:55,225 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 11:20:55,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 237 events. 9/237 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 515 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 180. Up to 2 conditions per place. [2022-12-14 11:20:55,236 INFO L119 LiptonReduction]: Number of co-enabled transitions 16182 [2022-12-14 11:21:06,845 INFO L134 LiptonReduction]: Checked pairs total: 163328 [2022-12-14 11:21:06,845 INFO L136 LiptonReduction]: Total number of compositions: 176 [2022-12-14 11:21:06,851 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 104 transitions, 216 flow [2022-12-14 11:21:06,909 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:06,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:21:06,927 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;@505abfae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:21:06,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 11:21:06,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:06,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 11:21:06,936 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:06,936 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 11:21:06,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:06,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:06,940 INFO L85 PathProgramCache]: Analyzing trace with hash 810, now seen corresponding path program 1 times [2022-12-14 11:21:06,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:06,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851556518] [2022-12-14 11:21:06,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:06,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:07,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:07,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:07,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851556518] [2022-12-14 11:21:07,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851556518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:07,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:07,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 11:21:07,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593776193] [2022-12-14 11:21:07,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:07,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:21:07,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:07,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:21:07,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:21:07,049 INFO L87 Difference]: Start difference. First operand has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 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) [2022-12-14 11:21:07,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:07,124 INFO L93 Difference]: Finished difference Result 2194 states and 4429 transitions. [2022-12-14 11:21:07,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:21:07,126 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 [2022-12-14 11:21:07,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:07,144 INFO L225 Difference]: With dead ends: 2194 [2022-12-14 11:21:07,144 INFO L226 Difference]: Without dead ends: 2194 [2022-12-14 11:21:07,145 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 [2022-12-14 11:21:07,147 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:07,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:21:07,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-12-14 11:21:07,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2022-12-14 11:21:07,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2139 states have (on average 2.070593735390369) internal successors, (4429), 2193 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 4429 transitions. [2022-12-14 11:21:07,261 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 4429 transitions. Word has length 1 [2022-12-14 11:21:07,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:07,261 INFO L495 AbstractCegarLoop]: Abstraction has 2194 states and 4429 transitions. [2022-12-14 11:21:07,262 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) [2022-12-14 11:21:07,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 4429 transitions. [2022-12-14 11:21:07,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:21:07,263 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:07,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:21:07,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:21:07,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2023394865, now seen corresponding path program 1 times [2022-12-14 11:21:07,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:07,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482763533] [2022-12-14 11:21:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:07,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:07,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:07,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482763533] [2022-12-14 11:21:07,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482763533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:07,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:07,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:21:07,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325091822] [2022-12-14 11:21:07,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:07,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:21:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:07,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:21:07,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:21:07,404 INFO L87 Difference]: Start difference. First operand 2194 states and 4429 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) [2022-12-14 11:21:07,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:07,512 INFO L93 Difference]: Finished difference Result 4043 states and 8170 transitions. [2022-12-14 11:21:07,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:21:07,512 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 [2022-12-14 11:21:07,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:07,524 INFO L225 Difference]: With dead ends: 4043 [2022-12-14 11:21:07,524 INFO L226 Difference]: Without dead ends: 4043 [2022-12-14 11:21:07,524 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 [2022-12-14 11:21:07,525 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 86 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:07,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 187 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:21:07,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043 states. [2022-12-14 11:21:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 2237. [2022-12-14 11:21:07,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2182 states have (on average 2.0692025664527955) internal successors, (4515), 2236 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:07,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 4515 transitions. [2022-12-14 11:21:07,575 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 4515 transitions. Word has length 9 [2022-12-14 11:21:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:07,575 INFO L495 AbstractCegarLoop]: Abstraction has 2237 states and 4515 transitions. [2022-12-14 11:21:07,576 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) [2022-12-14 11:21:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 4515 transitions. [2022-12-14 11:21:07,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:21:07,576 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:07,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:21:07,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:21:07,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:07,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:07,577 INFO L85 PathProgramCache]: Analyzing trace with hash -493617119, now seen corresponding path program 1 times [2022-12-14 11:21:07,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:07,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593068227] [2022-12-14 11:21:07,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:07,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:07,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:07,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593068227] [2022-12-14 11:21:07,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593068227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:07,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:07,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:21:07,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519145282] [2022-12-14 11:21:07,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:07,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:21:07,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:07,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:21:07,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:07,827 INFO L87 Difference]: Start difference. First operand 2237 states and 4515 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2022-12-14 11:21:08,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:08,500 INFO L93 Difference]: Finished difference Result 3333 states and 6729 transitions. [2022-12-14 11:21:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:21:08,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 [2022-12-14 11:21:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:08,511 INFO L225 Difference]: With dead ends: 3333 [2022-12-14 11:21:08,511 INFO L226 Difference]: Without dead ends: 3333 [2022-12-14 11:21:08,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:08,512 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 103 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:08,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 110 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 11:21:08,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2022-12-14 11:21:08,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 2633. [2022-12-14 11:21:08,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2578 states have (on average 2.0616757176105507) internal successors, (5315), 2632 states have internal predecessors, (5315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:08,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 5315 transitions. [2022-12-14 11:21:08,560 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 5315 transitions. Word has length 9 [2022-12-14 11:21:08,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:08,560 INFO L495 AbstractCegarLoop]: Abstraction has 2633 states and 5315 transitions. [2022-12-14 11:21:08,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2022-12-14 11:21:08,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 5315 transitions. [2022-12-14 11:21:08,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:21:08,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:08,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:21:08,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:21:08,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:08,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:08,561 INFO L85 PathProgramCache]: Analyzing trace with hash -89946058, now seen corresponding path program 1 times [2022-12-14 11:21:08,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:08,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066820759] [2022-12-14 11:21:08,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:08,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:08,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:08,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066820759] [2022-12-14 11:21:08,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066820759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:08,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:08,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:21:08,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880044773] [2022-12-14 11:21:08,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:08,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:21:08,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:08,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:21:08,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:21:08,592 INFO L87 Difference]: Start difference. First operand 2633 states and 5315 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) [2022-12-14 11:21:08,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:08,651 INFO L93 Difference]: Finished difference Result 4485 states and 9055 transitions. [2022-12-14 11:21:08,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:21:08,652 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 [2022-12-14 11:21:08,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:08,662 INFO L225 Difference]: With dead ends: 4485 [2022-12-14 11:21:08,662 INFO L226 Difference]: Without dead ends: 4485 [2022-12-14 11:21:08,663 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 [2022-12-14 11:21:08,663 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 79 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:08,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 193 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:21:08,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4485 states. [2022-12-14 11:21:08,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4485 to 2685. [2022-12-14 11:21:08,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2630 states have (on average 2.0608365019011408) internal successors, (5420), 2684 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:08,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 5420 transitions. [2022-12-14 11:21:08,713 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 5420 transitions. Word has length 9 [2022-12-14 11:21:08,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:08,713 INFO L495 AbstractCegarLoop]: Abstraction has 2685 states and 5420 transitions. [2022-12-14 11:21:08,713 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) [2022-12-14 11:21:08,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 5420 transitions. [2022-12-14 11:21:08,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 11:21:08,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:08,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:21:08,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:21:08,714 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:08,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:08,714 INFO L85 PathProgramCache]: Analyzing trace with hash 2024265221, now seen corresponding path program 1 times [2022-12-14 11:21:08,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:08,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744037415] [2022-12-14 11:21:08,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:08,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:08,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:08,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744037415] [2022-12-14 11:21:08,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744037415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:08,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:08,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:21:08,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320330281] [2022-12-14 11:21:08,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:08,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:21:08,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:08,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:21:08,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:08,873 INFO L87 Difference]: Start difference. First operand 2685 states and 5420 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) [2022-12-14 11:21:09,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:09,301 INFO L93 Difference]: Finished difference Result 4029 states and 8148 transitions. [2022-12-14 11:21:09,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:21:09,302 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 [2022-12-14 11:21:09,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:09,311 INFO L225 Difference]: With dead ends: 4029 [2022-12-14 11:21:09,311 INFO L226 Difference]: Without dead ends: 4029 [2022-12-14 11:21:09,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:09,312 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 109 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:09,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 82 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 11:21:09,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2022-12-14 11:21:09,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3129. [2022-12-14 11:21:09,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3080 states have (on average 2.048051948051948) internal successors, (6308), 3128 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:09,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 6308 transitions. [2022-12-14 11:21:09,364 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 6308 transitions. Word has length 10 [2022-12-14 11:21:09,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:09,364 INFO L495 AbstractCegarLoop]: Abstraction has 3129 states and 6308 transitions. [2022-12-14 11:21:09,364 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) [2022-12-14 11:21:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 6308 transitions. [2022-12-14 11:21:09,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 11:21:09,365 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:09,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:21:09,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:21:09,366 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:09,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:09,366 INFO L85 PathProgramCache]: Analyzing trace with hash 2037448137, now seen corresponding path program 1 times [2022-12-14 11:21:09,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:09,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239183541] [2022-12-14 11:21:09,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:09,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:09,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:09,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:09,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239183541] [2022-12-14 11:21:09,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239183541] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:09,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:09,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:21:09,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62571380] [2022-12-14 11:21:09,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:09,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:21:09,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:09,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:21:09,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:09,567 INFO L87 Difference]: Start difference. First operand 3129 states and 6308 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:10,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:10,025 INFO L93 Difference]: Finished difference Result 3300 states and 6654 transitions. [2022-12-14 11:21:10,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:21:10,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-12-14 11:21:10,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:10,039 INFO L225 Difference]: With dead ends: 3300 [2022-12-14 11:21:10,039 INFO L226 Difference]: Without dead ends: 3300 [2022-12-14 11:21:10,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:10,040 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 96 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:10,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 110 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 11:21:10,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2022-12-14 11:21:10,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3300. [2022-12-14 11:21:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3254 states have (on average 2.0448678549477566) internal successors, (6654), 3299 states have internal predecessors, (6654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:10,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 6654 transitions. [2022-12-14 11:21:10,106 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 6654 transitions. Word has length 15 [2022-12-14 11:21:10,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:10,106 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 6654 transitions. [2022-12-14 11:21:10,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:10,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 6654 transitions. [2022-12-14 11:21:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 11:21:10,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:10,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:21:10,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:21:10,107 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:10,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash -72017849, now seen corresponding path program 1 times [2022-12-14 11:21:10,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:10,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542550968] [2022-12-14 11:21:10,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:10,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:10,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:10,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:10,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542550968] [2022-12-14 11:21:10,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542550968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:10,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:10,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:21:10,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188082361] [2022-12-14 11:21:10,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:10,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:21:10,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:10,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:21:10,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:10,308 INFO L87 Difference]: Start difference. First operand 3300 states and 6654 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) [2022-12-14 11:21:10,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:10,685 INFO L93 Difference]: Finished difference Result 4367 states and 8827 transitions. [2022-12-14 11:21:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:21:10,685 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 [2022-12-14 11:21:10,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:10,693 INFO L225 Difference]: With dead ends: 4367 [2022-12-14 11:21:10,693 INFO L226 Difference]: Without dead ends: 4367 [2022-12-14 11:21:10,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:10,694 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 100 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:10,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 94 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 11:21:10,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2022-12-14 11:21:10,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 3439. [2022-12-14 11:21:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3396 states have (on average 2.0527090694935217) internal successors, (6971), 3438 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 6971 transitions. [2022-12-14 11:21:10,756 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 6971 transitions. Word has length 16 [2022-12-14 11:21:10,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:10,757 INFO L495 AbstractCegarLoop]: Abstraction has 3439 states and 6971 transitions. [2022-12-14 11:21:10,757 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) [2022-12-14 11:21:10,757 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 6971 transitions. [2022-12-14 11:21:10,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 11:21:10,762 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:10,762 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] [2022-12-14 11:21:10,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 11:21:10,762 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:10,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:10,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1702824584, now seen corresponding path program 1 times [2022-12-14 11:21:10,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:10,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059151633] [2022-12-14 11:21:10,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:10,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:10,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:10,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:10,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059151633] [2022-12-14 11:21:10,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059151633] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:10,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:10,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:21:10,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986673124] [2022-12-14 11:21:10,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:10,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:21:10,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:10,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:21:10,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:10,966 INFO L87 Difference]: Start difference. First operand 3439 states and 6971 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:11,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:11,284 INFO L93 Difference]: Finished difference Result 3633 states and 7363 transitions. [2022-12-14 11:21:11,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:21:11,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-12-14 11:21:11,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:11,293 INFO L225 Difference]: With dead ends: 3633 [2022-12-14 11:21:11,294 INFO L226 Difference]: Without dead ends: 3633 [2022-12-14 11:21:11,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:11,294 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 96 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:11,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 117 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:21:11,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2022-12-14 11:21:11,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3633. [2022-12-14 11:21:11,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3633 states, 3590 states have (on average 2.050974930362117) internal successors, (7363), 3632 states have internal predecessors, (7363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 7363 transitions. [2022-12-14 11:21:11,365 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 7363 transitions. Word has length 27 [2022-12-14 11:21:11,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:11,366 INFO L495 AbstractCegarLoop]: Abstraction has 3633 states and 7363 transitions. [2022-12-14 11:21:11,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:11,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 7363 transitions. [2022-12-14 11:21:11,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 11:21:11,367 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:11,367 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] [2022-12-14 11:21:11,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:21:11,367 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:11,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:11,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1127462959, now seen corresponding path program 1 times [2022-12-14 11:21:11,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:11,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035303122] [2022-12-14 11:21:11,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:11,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:11,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:11,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035303122] [2022-12-14 11:21:11,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035303122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:11,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:11,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:21:11,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109562710] [2022-12-14 11:21:11,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:11,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:21:11,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:11,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:21:11,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:11,557 INFO L87 Difference]: Start difference. First operand 3633 states and 7363 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) [2022-12-14 11:21:11,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:11,971 INFO L93 Difference]: Finished difference Result 3795 states and 7687 transitions. [2022-12-14 11:21:11,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:21:11,971 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 [2022-12-14 11:21:11,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:11,980 INFO L225 Difference]: With dead ends: 3795 [2022-12-14 11:21:11,980 INFO L226 Difference]: Without dead ends: 3795 [2022-12-14 11:21:11,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:21:11,981 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 76 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:11,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 100 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 11:21:11,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-12-14 11:21:12,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3795. [2022-12-14 11:21:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3795 states, 3752 states have (on average 2.048773987206823) internal successors, (7687), 3794 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 7687 transitions. [2022-12-14 11:21:12,046 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 7687 transitions. Word has length 28 [2022-12-14 11:21:12,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:12,047 INFO L495 AbstractCegarLoop]: Abstraction has 3795 states and 7687 transitions. [2022-12-14 11:21:12,047 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) [2022-12-14 11:21:12,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 7687 transitions. [2022-12-14 11:21:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:12,048 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:12,048 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] [2022-12-14 11:21:12,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 11:21:12,048 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:12,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:12,048 INFO L85 PathProgramCache]: Analyzing trace with hash -239109078, now seen corresponding path program 1 times [2022-12-14 11:21:12,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:12,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008974748] [2022-12-14 11:21:12,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:12,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:13,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:13,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008974748] [2022-12-14 11:21:13,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008974748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:13,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:13,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:21:13,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577367716] [2022-12-14 11:21:13,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:13,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:21:13,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:13,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:21:13,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:21:13,341 INFO L87 Difference]: Start difference. First operand 3795 states and 7687 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:16,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:16,189 INFO L93 Difference]: Finished difference Result 8005 states and 16288 transitions. [2022-12-14 11:21:16,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 11:21:16,189 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:16,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:16,202 INFO L225 Difference]: With dead ends: 8005 [2022-12-14 11:21:16,202 INFO L226 Difference]: Without dead ends: 8005 [2022-12-14 11:21:16,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=260, Invalid=732, Unknown=0, NotChecked=0, Total=992 [2022-12-14 11:21:16,203 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 567 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 3282 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 3520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 3282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:16,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 475 Invalid, 3520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 3282 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 11:21:16,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8005 states. [2022-12-14 11:21:16,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8005 to 4736. [2022-12-14 11:21:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4736 states, 4693 states have (on average 2.0679735776688686) internal successors, (9705), 4735 states have internal predecessors, (9705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4736 states to 4736 states and 9705 transitions. [2022-12-14 11:21:16,274 INFO L78 Accepts]: Start accepts. Automaton has 4736 states and 9705 transitions. Word has length 31 [2022-12-14 11:21:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:16,274 INFO L495 AbstractCegarLoop]: Abstraction has 4736 states and 9705 transitions. [2022-12-14 11:21:16,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 4736 states and 9705 transitions. [2022-12-14 11:21:16,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:16,276 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:16,276 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] [2022-12-14 11:21:16,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 11:21:16,276 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:16,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:16,276 INFO L85 PathProgramCache]: Analyzing trace with hash 70963713, now seen corresponding path program 1 times [2022-12-14 11:21:16,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:16,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690310258] [2022-12-14 11:21:16,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:16,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:17,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:17,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:17,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690310258] [2022-12-14 11:21:17,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690310258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:17,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:17,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:21:17,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392578906] [2022-12-14 11:21:17,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:17,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 11:21:17,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:17,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 11:21:17,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:21:17,591 INFO L87 Difference]: Start difference. First operand 4736 states and 9705 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:19,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:19,954 INFO L93 Difference]: Finished difference Result 9096 states and 18664 transitions. [2022-12-14 11:21:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 11:21:19,954 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:19,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:19,965 INFO L225 Difference]: With dead ends: 9096 [2022-12-14 11:21:19,965 INFO L226 Difference]: Without dead ends: 9096 [2022-12-14 11:21:19,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:21:19,966 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 638 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 3230 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 3254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:19,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 623 Invalid, 3254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3230 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 11:21:19,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9096 states. [2022-12-14 11:21:20,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9096 to 6061. [2022-12-14 11:21:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6061 states, 6018 states have (on average 2.09238949817215) internal successors, (12592), 6060 states have internal predecessors, (12592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:20,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6061 states to 6061 states and 12592 transitions. [2022-12-14 11:21:20,045 INFO L78 Accepts]: Start accepts. Automaton has 6061 states and 12592 transitions. Word has length 31 [2022-12-14 11:21:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:20,045 INFO L495 AbstractCegarLoop]: Abstraction has 6061 states and 12592 transitions. [2022-12-14 11:21:20,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:20,045 INFO L276 IsEmpty]: Start isEmpty. Operand 6061 states and 12592 transitions. [2022-12-14 11:21:20,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:20,047 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:20,047 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] [2022-12-14 11:21:20,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 11:21:20,047 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:20,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:20,047 INFO L85 PathProgramCache]: Analyzing trace with hash -68765304, now seen corresponding path program 1 times [2022-12-14 11:21:20,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:20,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066243288] [2022-12-14 11:21:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:20,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:22,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:22,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066243288] [2022-12-14 11:21:22,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066243288] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:22,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:22,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:21:22,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902403380] [2022-12-14 11:21:22,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:22,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:21:22,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:22,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:21:22,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:21:22,560 INFO L87 Difference]: Start difference. First operand 6061 states and 12592 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:23,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:23,841 INFO L93 Difference]: Finished difference Result 14564 states and 29789 transitions. [2022-12-14 11:21:23,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:21:23,841 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:23,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:23,859 INFO L225 Difference]: With dead ends: 14564 [2022-12-14 11:21:23,860 INFO L226 Difference]: Without dead ends: 14564 [2022-12-14 11:21:23,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:21:23,860 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 849 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:23,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 437 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:21:23,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14564 states. [2022-12-14 11:21:23,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14564 to 9805. [2022-12-14 11:21:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9805 states, 9762 states have (on average 2.139520590043024) internal successors, (20886), 9804 states have internal predecessors, (20886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:24,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9805 states to 9805 states and 20886 transitions. [2022-12-14 11:21:24,009 INFO L78 Accepts]: Start accepts. Automaton has 9805 states and 20886 transitions. Word has length 31 [2022-12-14 11:21:24,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:24,009 INFO L495 AbstractCegarLoop]: Abstraction has 9805 states and 20886 transitions. [2022-12-14 11:21:24,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:24,009 INFO L276 IsEmpty]: Start isEmpty. Operand 9805 states and 20886 transitions. [2022-12-14 11:21:24,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:24,011 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:24,011 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] [2022-12-14 11:21:24,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 11:21:24,011 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:24,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:24,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1089789252, now seen corresponding path program 2 times [2022-12-14 11:21:24,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:24,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589942699] [2022-12-14 11:21:24,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:24,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:26,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:26,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:26,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589942699] [2022-12-14 11:21:26,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589942699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:26,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:26,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:21:26,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107035505] [2022-12-14 11:21:26,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:26,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:21:26,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:26,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:21:26,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:21:26,483 INFO L87 Difference]: Start difference. First operand 9805 states and 20886 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:27,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:27,785 INFO L93 Difference]: Finished difference Result 14436 states and 29521 transitions. [2022-12-14 11:21:27,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:21:27,786 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:27,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:27,802 INFO L225 Difference]: With dead ends: 14436 [2022-12-14 11:21:27,802 INFO L226 Difference]: Without dead ends: 14436 [2022-12-14 11:21:27,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:21:27,803 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 804 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:27,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 437 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:21:27,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14436 states. [2022-12-14 11:21:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14436 to 9773. [2022-12-14 11:21:27,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9773 states, 9730 states have (on average 2.1398766700924976) internal successors, (20821), 9772 states have internal predecessors, (20821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9773 states to 9773 states and 20821 transitions. [2022-12-14 11:21:27,946 INFO L78 Accepts]: Start accepts. Automaton has 9773 states and 20821 transitions. Word has length 31 [2022-12-14 11:21:27,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:27,947 INFO L495 AbstractCegarLoop]: Abstraction has 9773 states and 20821 transitions. [2022-12-14 11:21:27,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:27,947 INFO L276 IsEmpty]: Start isEmpty. Operand 9773 states and 20821 transitions. [2022-12-14 11:21:27,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:27,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:27,949 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] [2022-12-14 11:21:27,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 11:21:27,949 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:27,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:27,949 INFO L85 PathProgramCache]: Analyzing trace with hash -853065208, now seen corresponding path program 3 times [2022-12-14 11:21:27,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:27,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282729591] [2022-12-14 11:21:27,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:27,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:29,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:29,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:29,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282729591] [2022-12-14 11:21:29,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282729591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:29,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:29,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:21:29,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205658890] [2022-12-14 11:21:29,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:29,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:21:29,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:29,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:21:29,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:21:29,747 INFO L87 Difference]: Start difference. First operand 9773 states and 20821 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:31,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:31,069 INFO L93 Difference]: Finished difference Result 14730 states and 30113 transitions. [2022-12-14 11:21:31,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:21:31,070 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:31,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:31,087 INFO L225 Difference]: With dead ends: 14730 [2022-12-14 11:21:31,088 INFO L226 Difference]: Without dead ends: 14730 [2022-12-14 11:21:31,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:21:31,088 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 767 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:31,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 441 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:21:31,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14730 states. [2022-12-14 11:21:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14730 to 9741. [2022-12-14 11:21:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9741 states, 9698 states have (on average 2.140235100020623) internal successors, (20756), 9740 states have internal predecessors, (20756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:31,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9741 states to 9741 states and 20756 transitions. [2022-12-14 11:21:31,240 INFO L78 Accepts]: Start accepts. Automaton has 9741 states and 20756 transitions. Word has length 31 [2022-12-14 11:21:31,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:31,240 INFO L495 AbstractCegarLoop]: Abstraction has 9741 states and 20756 transitions. [2022-12-14 11:21:31,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:31,240 INFO L276 IsEmpty]: Start isEmpty. Operand 9741 states and 20756 transitions. [2022-12-14 11:21:31,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:31,242 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:31,242 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] [2022-12-14 11:21:31,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 11:21:31,243 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:31,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:31,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1044835066, now seen corresponding path program 4 times [2022-12-14 11:21:31,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:31,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912150645] [2022-12-14 11:21:31,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:31,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:32,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:32,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:32,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912150645] [2022-12-14 11:21:32,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912150645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:32,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:32,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:21:32,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68073208] [2022-12-14 11:21:32,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:32,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:21:32,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:32,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:21:32,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:21:32,351 INFO L87 Difference]: Start difference. First operand 9741 states and 20756 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:34,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:34,309 INFO L93 Difference]: Finished difference Result 15286 states and 32165 transitions. [2022-12-14 11:21:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 11:21:34,309 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:34,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:34,327 INFO L225 Difference]: With dead ends: 15286 [2022-12-14 11:21:34,327 INFO L226 Difference]: Without dead ends: 15286 [2022-12-14 11:21:34,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:21:34,328 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 578 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:34,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 392 Invalid, 2450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:21:34,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15286 states. [2022-12-14 11:21:34,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15286 to 11267. [2022-12-14 11:21:34,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11267 states, 11224 states have (on average 2.1422843905915894) internal successors, (24045), 11266 states have internal predecessors, (24045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:34,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11267 states to 11267 states and 24045 transitions. [2022-12-14 11:21:34,479 INFO L78 Accepts]: Start accepts. Automaton has 11267 states and 24045 transitions. Word has length 31 [2022-12-14 11:21:34,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:34,479 INFO L495 AbstractCegarLoop]: Abstraction has 11267 states and 24045 transitions. [2022-12-14 11:21:34,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:34,479 INFO L276 IsEmpty]: Start isEmpty. Operand 11267 states and 24045 transitions. [2022-12-14 11:21:34,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:34,481 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:34,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:21:34,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 11:21:34,481 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:34,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:34,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2048352256, now seen corresponding path program 5 times [2022-12-14 11:21:34,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:34,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131062047] [2022-12-14 11:21:34,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:34,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:35,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:35,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131062047] [2022-12-14 11:21:35,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131062047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:35,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:35,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:21:35,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31616935] [2022-12-14 11:21:35,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:35,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:21:35,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:35,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:21:35,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:21:35,265 INFO L87 Difference]: Start difference. First operand 11267 states and 24045 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:36,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:36,285 INFO L93 Difference]: Finished difference Result 15346 states and 31599 transitions. [2022-12-14 11:21:36,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:21:36,286 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:36,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:36,304 INFO L225 Difference]: With dead ends: 15346 [2022-12-14 11:21:36,304 INFO L226 Difference]: Without dead ends: 15346 [2022-12-14 11:21:36,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:21:36,304 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 643 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:36,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 434 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:21:36,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15346 states. [2022-12-14 11:21:36,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15346 to 9007. [2022-12-14 11:21:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9007 states, 8964 states have (on average 2.1403391343150378) internal successors, (19186), 9006 states have internal predecessors, (19186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:36,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9007 states to 9007 states and 19186 transitions. [2022-12-14 11:21:36,443 INFO L78 Accepts]: Start accepts. Automaton has 9007 states and 19186 transitions. Word has length 31 [2022-12-14 11:21:36,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:36,444 INFO L495 AbstractCegarLoop]: Abstraction has 9007 states and 19186 transitions. [2022-12-14 11:21:36,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:36,444 INFO L276 IsEmpty]: Start isEmpty. Operand 9007 states and 19186 transitions. [2022-12-14 11:21:36,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:36,447 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:36,447 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] [2022-12-14 11:21:36,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 11:21:36,447 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:36,447 INFO L85 PathProgramCache]: Analyzing trace with hash -835386241, now seen corresponding path program 1 times [2022-12-14 11:21:36,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:36,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097709435] [2022-12-14 11:21:36,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:36,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:36,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:36,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:36,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097709435] [2022-12-14 11:21:36,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097709435] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:36,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:36,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:21:36,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638606121] [2022-12-14 11:21:36,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:36,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:21:36,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:36,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:21:36,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:21:36,848 INFO L87 Difference]: Start difference. First operand 9007 states and 19186 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:38,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:38,057 INFO L93 Difference]: Finished difference Result 12946 states and 26526 transitions. [2022-12-14 11:21:38,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:21:38,058 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:38,073 INFO L225 Difference]: With dead ends: 12946 [2022-12-14 11:21:38,073 INFO L226 Difference]: Without dead ends: 12946 [2022-12-14 11:21:38,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:21:38,074 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 649 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:38,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 431 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:21:38,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12946 states. [2022-12-14 11:21:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12946 to 9322. [2022-12-14 11:21:38,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9322 states, 9279 states have (on average 2.1504472464705247) internal successors, (19954), 9321 states have internal predecessors, (19954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9322 states to 9322 states and 19954 transitions. [2022-12-14 11:21:38,199 INFO L78 Accepts]: Start accepts. Automaton has 9322 states and 19954 transitions. Word has length 31 [2022-12-14 11:21:38,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:38,199 INFO L495 AbstractCegarLoop]: Abstraction has 9322 states and 19954 transitions. [2022-12-14 11:21:38,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 9322 states and 19954 transitions. [2022-12-14 11:21:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:38,201 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:38,201 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] [2022-12-14 11:21:38,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 11:21:38,201 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:38,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:38,202 INFO L85 PathProgramCache]: Analyzing trace with hash 802772095, now seen corresponding path program 2 times [2022-12-14 11:21:38,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:38,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27698090] [2022-12-14 11:21:38,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:38,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:38,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:38,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:38,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27698090] [2022-12-14 11:21:38,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27698090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:38,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:38,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:21:38,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169811139] [2022-12-14 11:21:38,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:38,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:21:38,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:38,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:21:38,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:21:38,647 INFO L87 Difference]: Start difference. First operand 9322 states and 19954 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:39,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:39,419 INFO L93 Difference]: Finished difference Result 11286 states and 23459 transitions. [2022-12-14 11:21:39,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:21:39,419 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:39,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:39,432 INFO L225 Difference]: With dead ends: 11286 [2022-12-14 11:21:39,432 INFO L226 Difference]: Without dead ends: 11286 [2022-12-14 11:21:39,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:21:39,433 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 640 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:39,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 458 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 11:21:39,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11286 states. [2022-12-14 11:21:39,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11286 to 9322. [2022-12-14 11:21:39,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9322 states, 9279 states have (on average 2.1504472464705247) internal successors, (19954), 9321 states have internal predecessors, (19954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9322 states to 9322 states and 19954 transitions. [2022-12-14 11:21:39,558 INFO L78 Accepts]: Start accepts. Automaton has 9322 states and 19954 transitions. Word has length 31 [2022-12-14 11:21:39,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:39,558 INFO L495 AbstractCegarLoop]: Abstraction has 9322 states and 19954 transitions. [2022-12-14 11:21:39,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:39,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9322 states and 19954 transitions. [2022-12-14 11:21:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:39,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:39,559 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] [2022-12-14 11:21:39,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 11:21:39,560 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:39,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:39,560 INFO L85 PathProgramCache]: Analyzing trace with hash 925213105, now seen corresponding path program 3 times [2022-12-14 11:21:39,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:39,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143855425] [2022-12-14 11:21:39,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:39,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:39,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:39,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:39,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143855425] [2022-12-14 11:21:39,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143855425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:39,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:39,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:21:39,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305407036] [2022-12-14 11:21:39,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:39,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:21:39,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:39,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:21:39,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:21:39,927 INFO L87 Difference]: Start difference. First operand 9322 states and 19954 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:40,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:40,956 INFO L93 Difference]: Finished difference Result 11318 states and 23523 transitions. [2022-12-14 11:21:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:21:40,957 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:40,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:40,969 INFO L225 Difference]: With dead ends: 11318 [2022-12-14 11:21:40,969 INFO L226 Difference]: Without dead ends: 11318 [2022-12-14 11:21:40,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:21:40,970 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 516 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:40,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 460 Invalid, 1648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:21:40,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-12-14 11:21:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 9322. [2022-12-14 11:21:41,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9322 states, 9279 states have (on average 2.1504472464705247) internal successors, (19954), 9321 states have internal predecessors, (19954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:41,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9322 states to 9322 states and 19954 transitions. [2022-12-14 11:21:41,080 INFO L78 Accepts]: Start accepts. Automaton has 9322 states and 19954 transitions. Word has length 31 [2022-12-14 11:21:41,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:41,080 INFO L495 AbstractCegarLoop]: Abstraction has 9322 states and 19954 transitions. [2022-12-14 11:21:41,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:41,080 INFO L276 IsEmpty]: Start isEmpty. Operand 9322 states and 19954 transitions. [2022-12-14 11:21:41,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:41,081 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:41,081 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] [2022-12-14 11:21:41,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 11:21:41,081 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:41,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:41,082 INFO L85 PathProgramCache]: Analyzing trace with hash 453622749, now seen corresponding path program 4 times [2022-12-14 11:21:41,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:41,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694345891] [2022-12-14 11:21:41,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:41,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:41,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:41,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:41,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694345891] [2022-12-14 11:21:41,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694345891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:41,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:41,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:21:41,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114374026] [2022-12-14 11:21:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:41,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:21:41,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:41,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:21:41,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:21:41,475 INFO L87 Difference]: Start difference. First operand 9322 states and 19954 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:42,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:42,518 INFO L93 Difference]: Finished difference Result 11366 states and 23619 transitions. [2022-12-14 11:21:42,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:21:42,518 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:42,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:42,530 INFO L225 Difference]: With dead ends: 11366 [2022-12-14 11:21:42,530 INFO L226 Difference]: Without dead ends: 11366 [2022-12-14 11:21:42,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:21:42,531 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 581 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:42,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 437 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:21:42,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2022-12-14 11:21:42,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 9322. [2022-12-14 11:21:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9322 states, 9279 states have (on average 2.1504472464705247) internal successors, (19954), 9321 states have internal predecessors, (19954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:42,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9322 states to 9322 states and 19954 transitions. [2022-12-14 11:21:42,634 INFO L78 Accepts]: Start accepts. Automaton has 9322 states and 19954 transitions. Word has length 31 [2022-12-14 11:21:42,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:42,634 INFO L495 AbstractCegarLoop]: Abstraction has 9322 states and 19954 transitions. [2022-12-14 11:21:42,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:42,634 INFO L276 IsEmpty]: Start isEmpty. Operand 9322 states and 19954 transitions. [2022-12-14 11:21:42,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:42,636 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:42,636 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] [2022-12-14 11:21:42,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 11:21:42,636 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:42,637 INFO L85 PathProgramCache]: Analyzing trace with hash -421901869, now seen corresponding path program 5 times [2022-12-14 11:21:42,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:42,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810081103] [2022-12-14 11:21:42,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:42,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:43,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:43,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810081103] [2022-12-14 11:21:43,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810081103] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:43,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:43,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:21:43,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111931192] [2022-12-14 11:21:43,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:43,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:21:43,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:43,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:21:43,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:21:43,085 INFO L87 Difference]: Start difference. First operand 9322 states and 19954 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:44,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:44,209 INFO L93 Difference]: Finished difference Result 11390 states and 23667 transitions. [2022-12-14 11:21:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:21:44,209 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:44,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:44,222 INFO L225 Difference]: With dead ends: 11390 [2022-12-14 11:21:44,222 INFO L226 Difference]: Without dead ends: 11390 [2022-12-14 11:21:44,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:21:44,223 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 562 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:44,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 425 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:21:44,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11390 states. [2022-12-14 11:21:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11390 to 9226. [2022-12-14 11:21:44,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9226 states, 9183 states have (on average 2.1422193183055644) internal successors, (19672), 9225 states have internal predecessors, (19672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:44,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9226 states to 9226 states and 19672 transitions. [2022-12-14 11:21:44,332 INFO L78 Accepts]: Start accepts. Automaton has 9226 states and 19672 transitions. Word has length 31 [2022-12-14 11:21:44,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:44,332 INFO L495 AbstractCegarLoop]: Abstraction has 9226 states and 19672 transitions. [2022-12-14 11:21:44,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 9226 states and 19672 transitions. [2022-12-14 11:21:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:44,335 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:44,335 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] [2022-12-14 11:21:44,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 11:21:44,335 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:44,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:44,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1671124094, now seen corresponding path program 2 times [2022-12-14 11:21:44,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:44,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892379417] [2022-12-14 11:21:44,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:44,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:45,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:45,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:45,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892379417] [2022-12-14 11:21:45,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892379417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:45,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:45,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:21:45,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299697407] [2022-12-14 11:21:45,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:45,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:21:45,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:45,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:21:45,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:21:45,188 INFO L87 Difference]: Start difference. First operand 9226 states and 19672 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:47,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:47,933 INFO L93 Difference]: Finished difference Result 15642 states and 32857 transitions. [2022-12-14 11:21:47,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 11:21:47,934 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:47,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:47,952 INFO L225 Difference]: With dead ends: 15642 [2022-12-14 11:21:47,953 INFO L226 Difference]: Without dead ends: 15642 [2022-12-14 11:21:47,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:21:47,953 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 526 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 2835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:47,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 372 Invalid, 2835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 2599 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 11:21:47,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15642 states. [2022-12-14 11:21:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15642 to 10396. [2022-12-14 11:21:48,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10396 states, 10353 states have (on average 2.1461412151067325) internal successors, (22219), 10395 states have internal predecessors, (22219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:48,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10396 states to 10396 states and 22219 transitions. [2022-12-14 11:21:48,095 INFO L78 Accepts]: Start accepts. Automaton has 10396 states and 22219 transitions. Word has length 31 [2022-12-14 11:21:48,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:48,096 INFO L495 AbstractCegarLoop]: Abstraction has 10396 states and 22219 transitions. [2022-12-14 11:21:48,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:48,096 INFO L276 IsEmpty]: Start isEmpty. Operand 10396 states and 22219 transitions. [2022-12-14 11:21:48,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:48,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:48,098 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] [2022-12-14 11:21:48,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 11:21:48,098 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:48,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:48,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1361051303, now seen corresponding path program 2 times [2022-12-14 11:21:48,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:48,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011664943] [2022-12-14 11:21:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:48,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:49,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:49,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011664943] [2022-12-14 11:21:49,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011664943] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:49,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:49,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:21:49,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138223789] [2022-12-14 11:21:49,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:49,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 11:21:49,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:49,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 11:21:49,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:21:49,151 INFO L87 Difference]: Start difference. First operand 10396 states and 22219 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:51,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:51,596 INFO L93 Difference]: Finished difference Result 13403 states and 28197 transitions. [2022-12-14 11:21:51,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 11:21:51,597 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:51,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:51,613 INFO L225 Difference]: With dead ends: 13403 [2022-12-14 11:21:51,613 INFO L226 Difference]: Without dead ends: 13403 [2022-12-14 11:21:51,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:21:51,614 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 636 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 3837 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 3858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:51,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 636 Invalid, 3858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3837 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 11:21:51,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13403 states. [2022-12-14 11:21:51,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13403 to 10713. [2022-12-14 11:21:51,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10713 states, 10670 states have (on average 2.1470477975632614) internal successors, (22909), 10712 states have internal predecessors, (22909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:51,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10713 states to 10713 states and 22909 transitions. [2022-12-14 11:21:51,745 INFO L78 Accepts]: Start accepts. Automaton has 10713 states and 22909 transitions. Word has length 31 [2022-12-14 11:21:51,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:51,745 INFO L495 AbstractCegarLoop]: Abstraction has 10713 states and 22909 transitions. [2022-12-14 11:21:51,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:51,745 INFO L276 IsEmpty]: Start isEmpty. Operand 10713 states and 22909 transitions. [2022-12-14 11:21:51,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:51,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:51,748 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] [2022-12-14 11:21:51,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 11:21:51,748 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:51,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:51,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1500780320, now seen corresponding path program 6 times [2022-12-14 11:21:51,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:51,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174823919] [2022-12-14 11:21:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:51,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:54,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:54,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174823919] [2022-12-14 11:21:54,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174823919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:54,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:54,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:21:54,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482687142] [2022-12-14 11:21:54,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:54,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:21:54,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:54,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:21:54,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:21:54,177 INFO L87 Difference]: Start difference. First operand 10713 states and 22909 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:55,458 INFO L93 Difference]: Finished difference Result 24389 states and 50440 transitions. [2022-12-14 11:21:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:21:55,459 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:55,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:55,489 INFO L225 Difference]: With dead ends: 24389 [2022-12-14 11:21:55,489 INFO L226 Difference]: Without dead ends: 24389 [2022-12-14 11:21:55,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:21:55,490 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 789 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:55,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 445 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:21:55,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24389 states. [2022-12-14 11:21:55,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24389 to 12382. [2022-12-14 11:21:55,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12382 states, 12339 states have (on average 2.147986060458708) internal successors, (26504), 12381 states have internal predecessors, (26504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:55,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12382 states to 12382 states and 26504 transitions. [2022-12-14 11:21:55,694 INFO L78 Accepts]: Start accepts. Automaton has 12382 states and 26504 transitions. Word has length 31 [2022-12-14 11:21:55,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:55,695 INFO L495 AbstractCegarLoop]: Abstraction has 12382 states and 26504 transitions. [2022-12-14 11:21:55,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:55,695 INFO L276 IsEmpty]: Start isEmpty. Operand 12382 states and 26504 transitions. [2022-12-14 11:21:55,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:55,697 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:55,697 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] [2022-12-14 11:21:55,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 11:21:55,697 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:55,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:55,698 INFO L85 PathProgramCache]: Analyzing trace with hash -342225764, now seen corresponding path program 7 times [2022-12-14 11:21:55,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:55,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883965188] [2022-12-14 11:21:55,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:55,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:58,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:21:58,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:58,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883965188] [2022-12-14 11:21:58,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883965188] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:58,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:21:58,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:21:58,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129980766] [2022-12-14 11:21:58,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:58,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:21:58,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:21:58,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:21:58,128 INFO L87 Difference]: Start difference. First operand 12382 states and 26504 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:59,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:59,578 INFO L93 Difference]: Finished difference Result 24498 states and 50648 transitions. [2022-12-14 11:21:59,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:21:59,579 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:21:59,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:59,610 INFO L225 Difference]: With dead ends: 24498 [2022-12-14 11:21:59,610 INFO L226 Difference]: Without dead ends: 24498 [2022-12-14 11:21:59,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:21:59,610 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 745 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:59,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 453 Invalid, 2293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:21:59,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24498 states. [2022-12-14 11:21:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24498 to 12366. [2022-12-14 11:21:59,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12366 states, 12323 states have (on average 2.148340501501258) internal successors, (26474), 12365 states have internal predecessors, (26474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:59,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12366 states to 12366 states and 26474 transitions. [2022-12-14 11:21:59,818 INFO L78 Accepts]: Start accepts. Automaton has 12366 states and 26474 transitions. Word has length 31 [2022-12-14 11:21:59,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:59,818 INFO L495 AbstractCegarLoop]: Abstraction has 12366 states and 26474 transitions. [2022-12-14 11:21:59,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:21:59,818 INFO L276 IsEmpty]: Start isEmpty. Operand 12366 states and 26474 transitions. [2022-12-14 11:21:59,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:21:59,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:59,821 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] [2022-12-14 11:21:59,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 11:21:59,821 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:21:59,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:59,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2009887072, now seen corresponding path program 8 times [2022-12-14 11:21:59,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:59,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236803674] [2022-12-14 11:21:59,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:59,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:01,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:01,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:01,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236803674] [2022-12-14 11:22:01,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236803674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:01,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:01,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:22:01,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130932079] [2022-12-14 11:22:01,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:01,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:22:01,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:01,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:22:01,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:22:01,471 INFO L87 Difference]: Start difference. First operand 12366 states and 26474 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:02,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:02,860 INFO L93 Difference]: Finished difference Result 25110 states and 51886 transitions. [2022-12-14 11:22:02,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:22:02,861 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:02,895 INFO L225 Difference]: With dead ends: 25110 [2022-12-14 11:22:02,896 INFO L226 Difference]: Without dead ends: 25110 [2022-12-14 11:22:02,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:22:02,896 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 794 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:02,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 444 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:22:02,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25110 states. [2022-12-14 11:22:03,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25110 to 12350. [2022-12-14 11:22:03,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12350 states, 12307 states have (on average 2.148695864142358) internal successors, (26444), 12349 states have internal predecessors, (26444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:03,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12350 states to 12350 states and 26444 transitions. [2022-12-14 11:22:03,111 INFO L78 Accepts]: Start accepts. Automaton has 12350 states and 26444 transitions. Word has length 31 [2022-12-14 11:22:03,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:03,111 INFO L495 AbstractCegarLoop]: Abstraction has 12350 states and 26444 transitions. [2022-12-14 11:22:03,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 12350 states and 26444 transitions. [2022-12-14 11:22:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:03,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:03,114 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] [2022-12-14 11:22:03,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 11:22:03,114 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:03,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:03,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1818117214, now seen corresponding path program 9 times [2022-12-14 11:22:03,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:03,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203534187] [2022-12-14 11:22:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:03,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:04,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:04,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:04,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203534187] [2022-12-14 11:22:04,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203534187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:04,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:04,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:22:04,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078821150] [2022-12-14 11:22:04,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:04,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:22:04,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:04,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:22:04,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:22:04,402 INFO L87 Difference]: Start difference. First operand 12350 states and 26444 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:06,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:06,694 INFO L93 Difference]: Finished difference Result 17453 states and 36843 transitions. [2022-12-14 11:22:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 11:22:06,695 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:06,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:06,715 INFO L225 Difference]: With dead ends: 17453 [2022-12-14 11:22:06,715 INFO L226 Difference]: Without dead ends: 17453 [2022-12-14 11:22:06,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=247, Invalid=623, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:22:06,716 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 532 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:06,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 395 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 11:22:06,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17453 states. [2022-12-14 11:22:06,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17453 to 13387. [2022-12-14 11:22:06,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13344 states have (on average 2.142835731414868) internal successors, (28594), 13386 states have internal predecessors, (28594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 28594 transitions. [2022-12-14 11:22:06,889 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 28594 transitions. Word has length 31 [2022-12-14 11:22:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:06,889 INFO L495 AbstractCegarLoop]: Abstraction has 13387 states and 28594 transitions. [2022-12-14 11:22:06,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:06,889 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 28594 transitions. [2022-12-14 11:22:06,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:06,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:06,892 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] [2022-12-14 11:22:06,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 11:22:06,892 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:06,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:06,893 INFO L85 PathProgramCache]: Analyzing trace with hash 814600024, now seen corresponding path program 10 times [2022-12-14 11:22:06,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:06,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153075189] [2022-12-14 11:22:06,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:06,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:07,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:07,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:07,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153075189] [2022-12-14 11:22:07,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153075189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:07,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:07,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:22:07,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337820493] [2022-12-14 11:22:07,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:07,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:22:07,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:07,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:22:07,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:22:07,541 INFO L87 Difference]: Start difference. First operand 13387 states and 28594 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:08,807 INFO L93 Difference]: Finished difference Result 24942 states and 51555 transitions. [2022-12-14 11:22:08,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:22:08,808 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:08,843 INFO L225 Difference]: With dead ends: 24942 [2022-12-14 11:22:08,843 INFO L226 Difference]: Without dead ends: 24942 [2022-12-14 11:22:08,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:22:08,843 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 834 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:08,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 444 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:22:08,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24942 states. [2022-12-14 11:22:09,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24942 to 11981. [2022-12-14 11:22:09,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11981 states, 11938 states have (on average 2.1482660412129335) internal successors, (25646), 11980 states have internal predecessors, (25646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:09,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11981 states to 11981 states and 25646 transitions. [2022-12-14 11:22:09,047 INFO L78 Accepts]: Start accepts. Automaton has 11981 states and 25646 transitions. Word has length 31 [2022-12-14 11:22:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:09,047 INFO L495 AbstractCegarLoop]: Abstraction has 11981 states and 25646 transitions. [2022-12-14 11:22:09,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 11981 states and 25646 transitions. [2022-12-14 11:22:09,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:09,050 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:09,050 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] [2022-12-14 11:22:09,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 11:22:09,050 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:09,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2027566039, now seen corresponding path program 6 times [2022-12-14 11:22:09,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:09,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053940627] [2022-12-14 11:22:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:09,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:09,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:09,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:09,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053940627] [2022-12-14 11:22:09,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053940627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:09,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:09,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:22:09,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476544429] [2022-12-14 11:22:09,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:09,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:22:09,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:09,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:22:09,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:22:09,398 INFO L87 Difference]: Start difference. First operand 11981 states and 25646 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:10,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:10,401 INFO L93 Difference]: Finished difference Result 20048 states and 41438 transitions. [2022-12-14 11:22:10,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:22:10,402 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:10,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:10,427 INFO L225 Difference]: With dead ends: 20048 [2022-12-14 11:22:10,427 INFO L226 Difference]: Without dead ends: 20048 [2022-12-14 11:22:10,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:22:10,427 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 784 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:10,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 431 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:22:10,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20048 states. [2022-12-14 11:22:10,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20048 to 10756. [2022-12-14 11:22:10,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10756 states, 10713 states have (on average 2.1430038271259217) internal successors, (22958), 10755 states have internal predecessors, (22958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10756 states to 10756 states and 22958 transitions. [2022-12-14 11:22:10,597 INFO L78 Accepts]: Start accepts. Automaton has 10756 states and 22958 transitions. Word has length 31 [2022-12-14 11:22:10,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:10,597 INFO L495 AbstractCegarLoop]: Abstraction has 10756 states and 22958 transitions. [2022-12-14 11:22:10,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 10756 states and 22958 transitions. [2022-12-14 11:22:10,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:10,599 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:10,599 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] [2022-12-14 11:22:10,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 11:22:10,600 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:10,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:10,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1884320048, now seen corresponding path program 11 times [2022-12-14 11:22:10,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:10,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182058002] [2022-12-14 11:22:10,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:12,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:12,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182058002] [2022-12-14 11:22:12,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182058002] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:12,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:12,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:22:12,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263489836] [2022-12-14 11:22:12,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:12,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:22:12,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:12,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:22:12,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:22:12,923 INFO L87 Difference]: Start difference. First operand 10756 states and 22958 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:14,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:14,385 INFO L93 Difference]: Finished difference Result 22180 states and 45672 transitions. [2022-12-14 11:22:14,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:22:14,386 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:14,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:14,414 INFO L225 Difference]: With dead ends: 22180 [2022-12-14 11:22:14,414 INFO L226 Difference]: Without dead ends: 22180 [2022-12-14 11:22:14,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:22:14,415 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 709 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 1887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:14,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 396 Invalid, 1887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1600 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:22:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22180 states. [2022-12-14 11:22:14,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22180 to 10921. [2022-12-14 11:22:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10921 states, 10878 states have (on average 2.1438683581540725) internal successors, (23321), 10920 states have internal predecessors, (23321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10921 states to 10921 states and 23321 transitions. [2022-12-14 11:22:14,614 INFO L78 Accepts]: Start accepts. Automaton has 10921 states and 23321 transitions. Word has length 31 [2022-12-14 11:22:14,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:14,614 INFO L495 AbstractCegarLoop]: Abstraction has 10921 states and 23321 transitions. [2022-12-14 11:22:14,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:14,614 INFO L276 IsEmpty]: Start isEmpty. Operand 10921 states and 23321 transitions. [2022-12-14 11:22:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:14,616 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:14,616 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] [2022-12-14 11:22:14,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 11:22:14,616 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:14,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:14,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1252092692, now seen corresponding path program 12 times [2022-12-14 11:22:14,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:14,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989645788] [2022-12-14 11:22:14,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:14,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:16,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:16,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:16,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989645788] [2022-12-14 11:22:16,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989645788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:16,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:16,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:22:16,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604284386] [2022-12-14 11:22:16,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:16,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:22:16,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:16,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:22:16,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:22:16,703 INFO L87 Difference]: Start difference. First operand 10921 states and 23321 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:18,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:18,578 INFO L93 Difference]: Finished difference Result 22703 states and 46727 transitions. [2022-12-14 11:22:18,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:22:18,579 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:18,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:18,608 INFO L225 Difference]: With dead ends: 22703 [2022-12-14 11:22:18,608 INFO L226 Difference]: Without dead ends: 22703 [2022-12-14 11:22:18,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:22:18,608 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 673 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:18,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 404 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:22:18,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22703 states. [2022-12-14 11:22:18,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22703 to 10888. [2022-12-14 11:22:18,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10888 states, 10845 states have (on average 2.144306131857999) internal successors, (23255), 10887 states have internal predecessors, (23255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:18,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10888 states to 10888 states and 23255 transitions. [2022-12-14 11:22:18,792 INFO L78 Accepts]: Start accepts. Automaton has 10888 states and 23255 transitions. Word has length 31 [2022-12-14 11:22:18,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:18,792 INFO L495 AbstractCegarLoop]: Abstraction has 10888 states and 23255 transitions. [2022-12-14 11:22:18,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:18,792 INFO L276 IsEmpty]: Start isEmpty. Operand 10888 states and 23255 transitions. [2022-12-14 11:22:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:18,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:18,795 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] [2022-12-14 11:22:18,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 11:22:18,795 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:18,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1100020144, now seen corresponding path program 13 times [2022-12-14 11:22:18,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:18,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146459834] [2022-12-14 11:22:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:18,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:20,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:20,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146459834] [2022-12-14 11:22:20,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146459834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:20,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:20,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:22:20,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874403575] [2022-12-14 11:22:20,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:20,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:22:20,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:20,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:22:20,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:22:20,439 INFO L87 Difference]: Start difference. First operand 10888 states and 23255 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:21,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:21,809 INFO L93 Difference]: Finished difference Result 21710 states and 44779 transitions. [2022-12-14 11:22:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:22:21,810 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:21,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:21,839 INFO L225 Difference]: With dead ends: 21710 [2022-12-14 11:22:21,839 INFO L226 Difference]: Without dead ends: 21710 [2022-12-14 11:22:21,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:22:21,840 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 756 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:21,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 397 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:22:21,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21710 states. [2022-12-14 11:22:21,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21710 to 10627. [2022-12-14 11:22:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10627 states, 10584 states have (on average 2.1444633408919125) internal successors, (22697), 10626 states have internal predecessors, (22697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10627 states to 10627 states and 22697 transitions. [2022-12-14 11:22:22,009 INFO L78 Accepts]: Start accepts. Automaton has 10627 states and 22697 transitions. Word has length 31 [2022-12-14 11:22:22,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:22,009 INFO L495 AbstractCegarLoop]: Abstraction has 10627 states and 22697 transitions. [2022-12-14 11:22:22,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:22,010 INFO L276 IsEmpty]: Start isEmpty. Operand 10627 states and 22697 transitions. [2022-12-14 11:22:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:22,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:22,012 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] [2022-12-14 11:22:22,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 11:22:22,012 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:22,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:22,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1739777374, now seen corresponding path program 14 times [2022-12-14 11:22:22,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:22,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661792244] [2022-12-14 11:22:22,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:22,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:24,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:24,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661792244] [2022-12-14 11:22:24,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661792244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:24,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:24,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:22:24,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498363824] [2022-12-14 11:22:24,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:24,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:22:24,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:24,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:22:24,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:22:24,370 INFO L87 Difference]: Start difference. First operand 10627 states and 22697 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:26,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:26,070 INFO L93 Difference]: Finished difference Result 21418 states and 44138 transitions. [2022-12-14 11:22:26,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:22:26,070 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:26,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:26,097 INFO L225 Difference]: With dead ends: 21418 [2022-12-14 11:22:26,097 INFO L226 Difference]: Without dead ends: 21418 [2022-12-14 11:22:26,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:22:26,098 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 809 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:26,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 407 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:22:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21418 states. [2022-12-14 11:22:26,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21418 to 10726. [2022-12-14 11:22:26,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10726 states, 10683 states have (on average 2.146213610409061) internal successors, (22928), 10725 states have internal predecessors, (22928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:26,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10726 states to 10726 states and 22928 transitions. [2022-12-14 11:22:26,275 INFO L78 Accepts]: Start accepts. Automaton has 10726 states and 22928 transitions. Word has length 31 [2022-12-14 11:22:26,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:26,275 INFO L495 AbstractCegarLoop]: Abstraction has 10726 states and 22928 transitions. [2022-12-14 11:22:26,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:26,276 INFO L276 IsEmpty]: Start isEmpty. Operand 10726 states and 22928 transitions. [2022-12-14 11:22:26,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:26,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:26,278 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] [2022-12-14 11:22:26,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 11:22:26,278 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:26,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:26,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1396635366, now seen corresponding path program 15 times [2022-12-14 11:22:26,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:26,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881273704] [2022-12-14 11:22:26,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:26,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:28,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:28,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881273704] [2022-12-14 11:22:28,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881273704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:28,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:28,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:22:28,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606072015] [2022-12-14 11:22:28,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:28,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:22:28,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:28,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:22:28,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:22:28,633 INFO L87 Difference]: Start difference. First operand 10726 states and 22928 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:30,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:30,514 INFO L93 Difference]: Finished difference Result 20942 states and 43233 transitions. [2022-12-14 11:22:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:22:30,515 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:30,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:30,541 INFO L225 Difference]: With dead ends: 20942 [2022-12-14 11:22:30,541 INFO L226 Difference]: Without dead ends: 20942 [2022-12-14 11:22:30,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:22:30,542 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 637 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 2723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:30,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 424 Invalid, 2723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 11:22:30,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20942 states. [2022-12-14 11:22:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20942 to 10498. [2022-12-14 11:22:30,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10498 states, 10455 states have (on average 2.1459588713534195) internal successors, (22436), 10497 states have internal predecessors, (22436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:30,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10498 states to 10498 states and 22436 transitions. [2022-12-14 11:22:30,714 INFO L78 Accepts]: Start accepts. Automaton has 10498 states and 22436 transitions. Word has length 31 [2022-12-14 11:22:30,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:30,715 INFO L495 AbstractCegarLoop]: Abstraction has 10498 states and 22436 transitions. [2022-12-14 11:22:30,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:30,715 INFO L276 IsEmpty]: Start isEmpty. Operand 10498 states and 22436 transitions. [2022-12-14 11:22:30,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:30,717 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:30,717 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] [2022-12-14 11:22:30,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 11:22:30,717 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:30,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:30,718 INFO L85 PathProgramCache]: Analyzing trace with hash -351329934, now seen corresponding path program 16 times [2022-12-14 11:22:30,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:30,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194644913] [2022-12-14 11:22:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:30,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:32,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:32,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194644913] [2022-12-14 11:22:32,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194644913] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:32,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:32,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:22:32,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846230286] [2022-12-14 11:22:32,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:32,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:22:32,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:32,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:22:32,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:22:32,895 INFO L87 Difference]: Start difference. First operand 10498 states and 22436 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:34,383 INFO L93 Difference]: Finished difference Result 19457 states and 40215 transitions. [2022-12-14 11:22:34,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:22:34,384 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:34,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:34,408 INFO L225 Difference]: With dead ends: 19457 [2022-12-14 11:22:34,408 INFO L226 Difference]: Without dead ends: 19457 [2022-12-14 11:22:34,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:22:34,408 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 777 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:34,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 416 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:22:34,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19457 states. [2022-12-14 11:22:34,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19457 to 10228. [2022-12-14 11:22:34,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10228 states, 10185 states have (on average 2.142169857633775) internal successors, (21818), 10227 states have internal predecessors, (21818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10228 states to 10228 states and 21818 transitions. [2022-12-14 11:22:34,566 INFO L78 Accepts]: Start accepts. Automaton has 10228 states and 21818 transitions. Word has length 31 [2022-12-14 11:22:34,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:34,567 INFO L495 AbstractCegarLoop]: Abstraction has 10228 states and 21818 transitions. [2022-12-14 11:22:34,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:34,567 INFO L276 IsEmpty]: Start isEmpty. Operand 10228 states and 21818 transitions. [2022-12-14 11:22:34,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:34,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:34,569 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] [2022-12-14 11:22:34,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 11:22:34,569 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:34,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:34,570 INFO L85 PathProgramCache]: Analyzing trace with hash -931242194, now seen corresponding path program 3 times [2022-12-14 11:22:34,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:34,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304921773] [2022-12-14 11:22:34,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:34,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:35,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:35,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304921773] [2022-12-14 11:22:35,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304921773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:35,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:35,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:22:35,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271037734] [2022-12-14 11:22:35,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:35,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:22:35,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:35,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:22:35,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:22:35,424 INFO L87 Difference]: Start difference. First operand 10228 states and 21818 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:39,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:39,704 INFO L93 Difference]: Finished difference Result 16883 states and 35355 transitions. [2022-12-14 11:22:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 11:22:39,705 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:39,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:39,725 INFO L225 Difference]: With dead ends: 16883 [2022-12-14 11:22:39,725 INFO L226 Difference]: Without dead ends: 16883 [2022-12-14 11:22:39,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=567, Invalid=2189, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 11:22:39,725 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 975 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 3644 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 3887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 3644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:39,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 1183 Invalid, 3887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 3644 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 11:22:39,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16883 states. [2022-12-14 11:22:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16883 to 11624. [2022-12-14 11:22:39,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11624 states, 11581 states have (on average 2.1421293497970813) internal successors, (24808), 11623 states have internal predecessors, (24808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:39,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11624 states to 11624 states and 24808 transitions. [2022-12-14 11:22:39,876 INFO L78 Accepts]: Start accepts. Automaton has 11624 states and 24808 transitions. Word has length 31 [2022-12-14 11:22:39,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:39,876 INFO L495 AbstractCegarLoop]: Abstraction has 11624 states and 24808 transitions. [2022-12-14 11:22:39,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:39,876 INFO L276 IsEmpty]: Start isEmpty. Operand 11624 states and 24808 transitions. [2022-12-14 11:22:39,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:39,878 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:39,879 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] [2022-12-14 11:22:39,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 11:22:39,879 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:39,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:39,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1347617944, now seen corresponding path program 4 times [2022-12-14 11:22:39,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:39,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448454710] [2022-12-14 11:22:39,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:39,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:43,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:43,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448454710] [2022-12-14 11:22:43,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448454710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:43,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:43,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:22:43,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162665329] [2022-12-14 11:22:43,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:43,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:22:43,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:43,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:22:43,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:22:43,326 INFO L87 Difference]: Start difference. First operand 11624 states and 24808 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:51,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:51,670 INFO L93 Difference]: Finished difference Result 15368 states and 32452 transitions. [2022-12-14 11:22:51,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-14 11:22:51,670 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:51,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:51,688 INFO L225 Difference]: With dead ends: 15368 [2022-12-14 11:22:51,688 INFO L226 Difference]: Without dead ends: 15368 [2022-12-14 11:22:51,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=540, Invalid=2540, Unknown=0, NotChecked=0, Total=3080 [2022-12-14 11:22:51,689 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 592 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 6469 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 6887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 6469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:51,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 527 Invalid, 6887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 6469 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 11:22:51,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15368 states. [2022-12-14 11:22:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15368 to 11790. [2022-12-14 11:22:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11790 states, 11747 states have (on average 2.1403762662807524) internal successors, (25143), 11789 states have internal predecessors, (25143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:51,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11790 states to 11790 states and 25143 transitions. [2022-12-14 11:22:51,836 INFO L78 Accepts]: Start accepts. Automaton has 11790 states and 25143 transitions. Word has length 31 [2022-12-14 11:22:51,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:51,836 INFO L495 AbstractCegarLoop]: Abstraction has 11790 states and 25143 transitions. [2022-12-14 11:22:51,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:51,836 INFO L276 IsEmpty]: Start isEmpty. Operand 11790 states and 25143 transitions. [2022-12-14 11:22:51,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:51,838 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:51,838 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] [2022-12-14 11:22:51,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-14 11:22:51,838 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:51,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:51,839 INFO L85 PathProgramCache]: Analyzing trace with hash 843191008, now seen corresponding path program 5 times [2022-12-14 11:22:51,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:51,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783178024] [2022-12-14 11:22:51,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:51,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:54,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:54,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:22:54,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783178024] [2022-12-14 11:22:54,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783178024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:22:54,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:22:54,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:22:54,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777454764] [2022-12-14 11:22:54,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:22:54,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:22:54,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:22:54,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:22:54,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:22:54,064 INFO L87 Difference]: Start difference. First operand 11790 states and 25143 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:59,502 INFO L93 Difference]: Finished difference Result 17492 states and 36776 transitions. [2022-12-14 11:22:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 11:22:59,503 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:22:59,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:59,522 INFO L225 Difference]: With dead ends: 17492 [2022-12-14 11:22:59,522 INFO L226 Difference]: Without dead ends: 17492 [2022-12-14 11:22:59,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-12-14 11:22:59,523 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1048 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 5683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:59,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 413 Invalid, 5683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 4957 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 11:22:59,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17492 states. [2022-12-14 11:22:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17492 to 12523. [2022-12-14 11:22:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12523 states, 12480 states have (on average 2.141346153846154) internal successors, (26724), 12522 states have internal predecessors, (26724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:59,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12523 states to 12523 states and 26724 transitions. [2022-12-14 11:22:59,689 INFO L78 Accepts]: Start accepts. Automaton has 12523 states and 26724 transitions. Word has length 31 [2022-12-14 11:22:59,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:59,689 INFO L495 AbstractCegarLoop]: Abstraction has 12523 states and 26724 transitions. [2022-12-14 11:22:59,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:22:59,689 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states and 26724 transitions. [2022-12-14 11:22:59,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:22:59,692 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:59,692 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] [2022-12-14 11:22:59,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-14 11:22:59,692 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:22:59,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:59,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1591776438, now seen corresponding path program 6 times [2022-12-14 11:22:59,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:22:59,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976445086] [2022-12-14 11:22:59,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:59,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:22:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:02,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:02,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976445086] [2022-12-14 11:23:02,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976445086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:02,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:02,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:23:02,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27187488] [2022-12-14 11:23:02,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:02,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:23:02,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:02,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:23:02,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:23:02,395 INFO L87 Difference]: Start difference. First operand 12523 states and 26724 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:09,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:09,881 INFO L93 Difference]: Finished difference Result 16807 states and 35468 transitions. [2022-12-14 11:23:09,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 11:23:09,882 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:23:09,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:09,904 INFO L225 Difference]: With dead ends: 16807 [2022-12-14 11:23:09,904 INFO L226 Difference]: Without dead ends: 16807 [2022-12-14 11:23:09,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=703, Invalid=3079, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 11:23:09,906 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 571 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 6455 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 6908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 6455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:09,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 529 Invalid, 6908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 6455 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 11:23:09,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16807 states. [2022-12-14 11:23:10,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16807 to 12524. [2022-12-14 11:23:10,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12524 states, 12481 states have (on average 2.1414149507251024) internal successors, (26727), 12523 states have internal predecessors, (26727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:10,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12524 states to 12524 states and 26727 transitions. [2022-12-14 11:23:10,119 INFO L78 Accepts]: Start accepts. Automaton has 12524 states and 26727 transitions. Word has length 31 [2022-12-14 11:23:10,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:10,119 INFO L495 AbstractCegarLoop]: Abstraction has 12524 states and 26727 transitions. [2022-12-14 11:23:10,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:10,119 INFO L276 IsEmpty]: Start isEmpty. Operand 12524 states and 26727 transitions. [2022-12-14 11:23:10,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:23:10,124 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:10,124 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] [2022-12-14 11:23:10,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-14 11:23:10,125 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:23:10,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:10,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1132883372, now seen corresponding path program 7 times [2022-12-14 11:23:10,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:10,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391126938] [2022-12-14 11:23:10,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:10,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:12,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:12,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391126938] [2022-12-14 11:23:12,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391126938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:12,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:12,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:23:12,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016627327] [2022-12-14 11:23:12,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:12,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:23:12,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:12,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:23:12,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:23:12,410 INFO L87 Difference]: Start difference. First operand 12524 states and 26727 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:17,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:17,422 INFO L93 Difference]: Finished difference Result 17334 states and 36447 transitions. [2022-12-14 11:23:17,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 11:23:17,423 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:23:17,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:17,443 INFO L225 Difference]: With dead ends: 17334 [2022-12-14 11:23:17,443 INFO L226 Difference]: Without dead ends: 17334 [2022-12-14 11:23:17,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=406, Invalid=1486, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 11:23:17,444 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 972 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 5150 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 5794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 5150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:17,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 467 Invalid, 5794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 5150 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 11:23:17,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17334 states. [2022-12-14 11:23:17,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17334 to 12584. [2022-12-14 11:23:17,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12584 states, 12541 states have (on average 2.1407383781197673) internal successors, (26847), 12583 states have internal predecessors, (26847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12584 states to 12584 states and 26847 transitions. [2022-12-14 11:23:17,656 INFO L78 Accepts]: Start accepts. Automaton has 12584 states and 26847 transitions. Word has length 31 [2022-12-14 11:23:17,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:17,656 INFO L495 AbstractCegarLoop]: Abstraction has 12584 states and 26847 transitions. [2022-12-14 11:23:17,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:17,656 INFO L276 IsEmpty]: Start isEmpty. Operand 12584 states and 26847 transitions. [2022-12-14 11:23:17,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:23:17,661 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:17,661 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] [2022-12-14 11:23:17,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-14 11:23:17,661 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:23:17,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:17,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1302084074, now seen corresponding path program 8 times [2022-12-14 11:23:17,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:17,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665221484] [2022-12-14 11:23:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:17,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:20,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:20,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665221484] [2022-12-14 11:23:20,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665221484] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:20,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:20,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:23:20,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172951426] [2022-12-14 11:23:20,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:20,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:23:20,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:20,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:23:20,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:23:20,752 INFO L87 Difference]: Start difference. First operand 12584 states and 26847 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:28,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:28,582 INFO L93 Difference]: Finished difference Result 18476 states and 38903 transitions. [2022-12-14 11:23:28,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-12-14 11:23:28,583 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:23:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:28,603 INFO L225 Difference]: With dead ends: 18476 [2022-12-14 11:23:28,603 INFO L226 Difference]: Without dead ends: 18476 [2022-12-14 11:23:28,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1832 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1072, Invalid=5408, Unknown=0, NotChecked=0, Total=6480 [2022-12-14 11:23:28,604 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 790 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 5573 mSolverCounterSat, 721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 6294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 721 IncrementalHoareTripleChecker+Valid, 5573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:28,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 543 Invalid, 6294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [721 Valid, 5573 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 11:23:28,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18476 states. [2022-12-14 11:23:28,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18476 to 12559. [2022-12-14 11:23:28,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12559 states, 12516 states have (on average 2.141019495046341) internal successors, (26797), 12558 states have internal predecessors, (26797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:28,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12559 states to 12559 states and 26797 transitions. [2022-12-14 11:23:28,767 INFO L78 Accepts]: Start accepts. Automaton has 12559 states and 26797 transitions. Word has length 31 [2022-12-14 11:23:28,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:28,767 INFO L495 AbstractCegarLoop]: Abstraction has 12559 states and 26797 transitions. [2022-12-14 11:23:28,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:28,767 INFO L276 IsEmpty]: Start isEmpty. Operand 12559 states and 26797 transitions. [2022-12-14 11:23:28,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:23:28,770 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:28,770 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] [2022-12-14 11:23:28,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-14 11:23:28,770 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:23:28,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:28,770 INFO L85 PathProgramCache]: Analyzing trace with hash 130307496, now seen corresponding path program 9 times [2022-12-14 11:23:28,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:28,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578811490] [2022-12-14 11:23:28,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:28,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:31,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:31,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578811490] [2022-12-14 11:23:31,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578811490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:31,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:31,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:23:31,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432936669] [2022-12-14 11:23:31,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:31,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:23:31,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:31,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:23:31,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:23:31,170 INFO L87 Difference]: Start difference. First operand 12559 states and 26797 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:39,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:39,385 INFO L93 Difference]: Finished difference Result 16953 states and 35762 transitions. [2022-12-14 11:23:39,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-14 11:23:39,386 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:23:39,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:39,405 INFO L225 Difference]: With dead ends: 16953 [2022-12-14 11:23:39,405 INFO L226 Difference]: Without dead ends: 16953 [2022-12-14 11:23:39,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=955, Invalid=4157, Unknown=0, NotChecked=0, Total=5112 [2022-12-14 11:23:39,407 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 612 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 6574 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 7071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 6574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:39,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 528 Invalid, 7071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 6574 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 11:23:39,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16953 states. [2022-12-14 11:23:39,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16953 to 12577. [2022-12-14 11:23:39,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12577 states, 12534 states have (on average 2.140896760810595) internal successors, (26834), 12576 states have internal predecessors, (26834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:39,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12577 states to 12577 states and 26834 transitions. [2022-12-14 11:23:39,564 INFO L78 Accepts]: Start accepts. Automaton has 12577 states and 26834 transitions. Word has length 31 [2022-12-14 11:23:39,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:39,564 INFO L495 AbstractCegarLoop]: Abstraction has 12577 states and 26834 transitions. [2022-12-14 11:23:39,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:39,564 INFO L276 IsEmpty]: Start isEmpty. Operand 12577 states and 26834 transitions. [2022-12-14 11:23:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:23:39,567 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:39,567 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] [2022-12-14 11:23:39,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-14 11:23:39,567 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:23:39,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1080512924, now seen corresponding path program 10 times [2022-12-14 11:23:39,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:39,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590585749] [2022-12-14 11:23:39,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:39,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:42,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:42,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590585749] [2022-12-14 11:23:42,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590585749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:42,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:42,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:23:42,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131005219] [2022-12-14 11:23:42,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:42,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:23:42,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:42,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:23:42,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:23:42,797 INFO L87 Difference]: Start difference. First operand 12577 states and 26834 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:49,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:49,989 INFO L93 Difference]: Finished difference Result 18425 states and 38791 transitions. [2022-12-14 11:23:49,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-14 11:23:49,989 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:23:49,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:50,012 INFO L225 Difference]: With dead ends: 18425 [2022-12-14 11:23:50,013 INFO L226 Difference]: Without dead ends: 18425 [2022-12-14 11:23:50,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=594, Invalid=2828, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 11:23:50,015 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 677 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 5389 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 5971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 5389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:50,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 545 Invalid, 5971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 5389 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 11:23:50,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18425 states. [2022-12-14 11:23:50,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18425 to 12563. [2022-12-14 11:23:50,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12563 states, 12520 states have (on average 2.140654952076677) internal successors, (26801), 12562 states have internal predecessors, (26801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12563 states to 12563 states and 26801 transitions. [2022-12-14 11:23:50,210 INFO L78 Accepts]: Start accepts. Automaton has 12563 states and 26801 transitions. Word has length 31 [2022-12-14 11:23:50,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:50,210 INFO L495 AbstractCegarLoop]: Abstraction has 12563 states and 26801 transitions. [2022-12-14 11:23:50,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:50,210 INFO L276 IsEmpty]: Start isEmpty. Operand 12563 states and 26801 transitions. [2022-12-14 11:23:50,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:23:50,212 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:50,212 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] [2022-12-14 11:23:50,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-14 11:23:50,212 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:23:50,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:50,213 INFO L85 PathProgramCache]: Analyzing trace with hash 352941527, now seen corresponding path program 3 times [2022-12-14 11:23:50,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:50,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748861362] [2022-12-14 11:23:50,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:50,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:51,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:51,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:51,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748861362] [2022-12-14 11:23:51,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748861362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:51,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:51,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:23:51,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396414582] [2022-12-14 11:23:51,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:51,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:23:51,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:51,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:23:51,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:23:51,184 INFO L87 Difference]: Start difference. First operand 12563 states and 26801 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:54,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:54,410 INFO L93 Difference]: Finished difference Result 18083 states and 37996 transitions. [2022-12-14 11:23:54,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 11:23:54,411 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:23:54,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:54,432 INFO L225 Difference]: With dead ends: 18083 [2022-12-14 11:23:54,432 INFO L226 Difference]: Without dead ends: 18083 [2022-12-14 11:23:54,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 11:23:54,433 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 698 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 4125 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 4157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 4125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:54,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1273 Invalid, 4157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 4125 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 11:23:54,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18083 states. [2022-12-14 11:23:54,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18083 to 15422. [2022-12-14 11:23:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15422 states, 15379 states have (on average 2.1358996033552247) internal successors, (32848), 15421 states have internal predecessors, (32848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:54,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15422 states to 15422 states and 32848 transitions. [2022-12-14 11:23:54,648 INFO L78 Accepts]: Start accepts. Automaton has 15422 states and 32848 transitions. Word has length 31 [2022-12-14 11:23:54,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:54,648 INFO L495 AbstractCegarLoop]: Abstraction has 15422 states and 32848 transitions. [2022-12-14 11:23:54,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:54,648 INFO L276 IsEmpty]: Start isEmpty. Operand 15422 states and 32848 transitions. [2022-12-14 11:23:54,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:23:54,650 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:54,650 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] [2022-12-14 11:23:54,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-14 11:23:54,651 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:23:54,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:54,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1459060414, now seen corresponding path program 11 times [2022-12-14 11:23:54,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:54,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732500888] [2022-12-14 11:23:54,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:54,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:55,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:55,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:55,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732500888] [2022-12-14 11:23:55,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732500888] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:55,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:55,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:23:55,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604888292] [2022-12-14 11:23:55,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:55,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 11:23:55,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:55,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 11:23:55,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:23:55,227 INFO L87 Difference]: Start difference. First operand 15422 states and 32848 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:56,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:56,993 INFO L93 Difference]: Finished difference Result 18548 states and 39203 transitions. [2022-12-14 11:23:56,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-14 11:23:56,994 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:23:56,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:57,015 INFO L225 Difference]: With dead ends: 18548 [2022-12-14 11:23:57,015 INFO L226 Difference]: Without dead ends: 18548 [2022-12-14 11:23:57,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=236, Invalid=694, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:23:57,016 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 496 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 2432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:57,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 920 Invalid, 2432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:23:57,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18548 states. [2022-12-14 11:23:57,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18548 to 15863. [2022-12-14 11:23:57,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15863 states, 15820 states have (on average 2.134070796460177) internal successors, (33761), 15862 states have internal predecessors, (33761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:57,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15863 states to 15863 states and 33761 transitions. [2022-12-14 11:23:57,214 INFO L78 Accepts]: Start accepts. Automaton has 15863 states and 33761 transitions. Word has length 31 [2022-12-14 11:23:57,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:57,215 INFO L495 AbstractCegarLoop]: Abstraction has 15863 states and 33761 transitions. [2022-12-14 11:23:57,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:57,215 INFO L276 IsEmpty]: Start isEmpty. Operand 15863 states and 33761 transitions. [2022-12-14 11:23:57,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:23:57,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:57,217 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] [2022-12-14 11:23:57,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-14 11:23:57,217 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:23:57,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash -150734551, now seen corresponding path program 4 times [2022-12-14 11:23:57,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:57,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841853647] [2022-12-14 11:23:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:57,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:58,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:58,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:58,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841853647] [2022-12-14 11:23:58,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841853647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:58,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:58,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:23:58,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819731419] [2022-12-14 11:23:58,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:58,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:23:58,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:58,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:23:58,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:23:58,285 INFO L87 Difference]: Start difference. First operand 15863 states and 33761 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:00,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:00,585 INFO L93 Difference]: Finished difference Result 17775 states and 37409 transitions. [2022-12-14 11:24:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 11:24:00,585 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:00,606 INFO L225 Difference]: With dead ends: 17775 [2022-12-14 11:24:00,607 INFO L226 Difference]: Without dead ends: 17775 [2022-12-14 11:24:00,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:24:00,607 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 617 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 2783 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 2813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:00,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 1129 Invalid, 2813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2783 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 11:24:00,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17775 states. [2022-12-14 11:24:00,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17775 to 15862. [2022-12-14 11:24:00,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15862 states, 15819 states have (on average 2.134205702003919) internal successors, (33761), 15861 states have internal predecessors, (33761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15862 states to 15862 states and 33761 transitions. [2022-12-14 11:24:00,837 INFO L78 Accepts]: Start accepts. Automaton has 15862 states and 33761 transitions. Word has length 31 [2022-12-14 11:24:00,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:00,838 INFO L495 AbstractCegarLoop]: Abstraction has 15862 states and 33761 transitions. [2022-12-14 11:24:00,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:00,838 INFO L276 IsEmpty]: Start isEmpty. Operand 15862 states and 33761 transitions. [2022-12-14 11:24:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:00,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:00,841 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] [2022-12-14 11:24:00,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-14 11:24:00,841 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:00,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:00,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2061233729, now seen corresponding path program 5 times [2022-12-14 11:24:00,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:00,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275049629] [2022-12-14 11:24:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:00,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:01,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:01,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275049629] [2022-12-14 11:24:01,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275049629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:01,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:01,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:24:01,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112045110] [2022-12-14 11:24:01,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:01,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:24:01,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:01,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:24:01,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:24:01,966 INFO L87 Difference]: Start difference. First operand 15862 states and 33761 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:04,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:04,487 INFO L93 Difference]: Finished difference Result 17745 states and 37349 transitions. [2022-12-14 11:24:04,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 11:24:04,488 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:04,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:04,509 INFO L225 Difference]: With dead ends: 17745 [2022-12-14 11:24:04,509 INFO L226 Difference]: Without dead ends: 17745 [2022-12-14 11:24:04,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 11:24:04,510 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 561 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 3257 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:04,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1231 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3257 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 11:24:04,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17745 states. [2022-12-14 11:24:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17745 to 15861. [2022-12-14 11:24:04,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15861 states, 15818 states have (on average 2.1343406246048806) internal successors, (33761), 15860 states have internal predecessors, (33761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15861 states to 15861 states and 33761 transitions. [2022-12-14 11:24:04,714 INFO L78 Accepts]: Start accepts. Automaton has 15861 states and 33761 transitions. Word has length 31 [2022-12-14 11:24:04,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:04,715 INFO L495 AbstractCegarLoop]: Abstraction has 15861 states and 33761 transitions. [2022-12-14 11:24:04,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:04,715 INFO L276 IsEmpty]: Start isEmpty. Operand 15861 states and 33761 transitions. [2022-12-14 11:24:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:04,717 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:04,717 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] [2022-12-14 11:24:04,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-14 11:24:04,717 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:04,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:04,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1973658137, now seen corresponding path program 6 times [2022-12-14 11:24:04,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:04,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231774008] [2022-12-14 11:24:04,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:04,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:05,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:05,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231774008] [2022-12-14 11:24:05,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231774008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:05,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:05,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:24:05,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561170949] [2022-12-14 11:24:05,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:05,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:24:05,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:05,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:24:05,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:24:05,603 INFO L87 Difference]: Start difference. First operand 15861 states and 33761 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:08,841 INFO L93 Difference]: Finished difference Result 17702 states and 37261 transitions. [2022-12-14 11:24:08,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 11:24:08,842 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:08,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:08,861 INFO L225 Difference]: With dead ends: 17702 [2022-12-14 11:24:08,861 INFO L226 Difference]: Without dead ends: 17702 [2022-12-14 11:24:08,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:24:08,861 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 685 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 3694 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 3716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:08,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1137 Invalid, 3716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3694 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:24:08,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17702 states. [2022-12-14 11:24:09,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17702 to 15665. [2022-12-14 11:24:09,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15665 states, 15622 states have (on average 2.134425809755473) internal successors, (33344), 15664 states have internal predecessors, (33344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:09,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15665 states to 15665 states and 33344 transitions. [2022-12-14 11:24:09,052 INFO L78 Accepts]: Start accepts. Automaton has 15665 states and 33344 transitions. Word has length 31 [2022-12-14 11:24:09,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:09,052 INFO L495 AbstractCegarLoop]: Abstraction has 15665 states and 33344 transitions. [2022-12-14 11:24:09,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:09,053 INFO L276 IsEmpty]: Start isEmpty. Operand 15665 states and 33344 transitions. [2022-12-14 11:24:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:09,055 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:09,055 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] [2022-12-14 11:24:09,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-14 11:24:09,055 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:09,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:09,055 INFO L85 PathProgramCache]: Analyzing trace with hash 40180762, now seen corresponding path program 12 times [2022-12-14 11:24:09,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:09,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365678849] [2022-12-14 11:24:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:09,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:10,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:10,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365678849] [2022-12-14 11:24:10,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365678849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:10,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:10,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:24:10,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018836428] [2022-12-14 11:24:10,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:10,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:24:10,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:10,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:24:10,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:10,032 INFO L87 Difference]: Start difference. First operand 15665 states and 33344 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:13,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:13,383 INFO L93 Difference]: Finished difference Result 23486 states and 49607 transitions. [2022-12-14 11:24:13,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 11:24:13,383 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:13,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:13,412 INFO L225 Difference]: With dead ends: 23486 [2022-12-14 11:24:13,412 INFO L226 Difference]: Without dead ends: 23486 [2022-12-14 11:24:13,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2022-12-14 11:24:13,413 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 600 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 3520 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 3760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 3520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:13,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 353 Invalid, 3760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 3520 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:24:13,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23486 states. [2022-12-14 11:24:13,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23486 to 17566. [2022-12-14 11:24:13,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17566 states, 17523 states have (on average 2.1320550134109455) internal successors, (37360), 17565 states have internal predecessors, (37360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:13,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17566 states to 17566 states and 37360 transitions. [2022-12-14 11:24:13,650 INFO L78 Accepts]: Start accepts. Automaton has 17566 states and 37360 transitions. Word has length 31 [2022-12-14 11:24:13,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:13,651 INFO L495 AbstractCegarLoop]: Abstraction has 17566 states and 37360 transitions. [2022-12-14 11:24:13,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 17566 states and 37360 transitions. [2022-12-14 11:24:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:13,653 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:13,653 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] [2022-12-14 11:24:13,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-14 11:24:13,653 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:13,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:13,654 INFO L85 PathProgramCache]: Analyzing trace with hash 350253553, now seen corresponding path program 7 times [2022-12-14 11:24:13,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:13,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134552594] [2022-12-14 11:24:13,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:13,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:14,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:14,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:14,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134552594] [2022-12-14 11:24:14,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134552594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:14,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:14,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:24:14,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963723963] [2022-12-14 11:24:14,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:14,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 11:24:14,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:14,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 11:24:14,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:24:14,705 INFO L87 Difference]: Start difference. First operand 17566 states and 37360 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:17,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:17,202 INFO L93 Difference]: Finished difference Result 21212 states and 44834 transitions. [2022-12-14 11:24:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 11:24:17,203 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:17,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:17,229 INFO L225 Difference]: With dead ends: 21212 [2022-12-14 11:24:17,229 INFO L226 Difference]: Without dead ends: 21212 [2022-12-14 11:24:17,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:24:17,230 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 605 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 3834 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 3855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:17,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 589 Invalid, 3855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3834 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 11:24:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21212 states. [2022-12-14 11:24:17,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21212 to 18440. [2022-12-14 11:24:17,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18440 states, 18397 states have (on average 2.136924498559548) internal successors, (39313), 18439 states have internal predecessors, (39313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:17,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18440 states to 18440 states and 39313 transitions. [2022-12-14 11:24:17,465 INFO L78 Accepts]: Start accepts. Automaton has 18440 states and 39313 transitions. Word has length 31 [2022-12-14 11:24:17,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:17,465 INFO L495 AbstractCegarLoop]: Abstraction has 18440 states and 39313 transitions. [2022-12-14 11:24:17,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:17,465 INFO L276 IsEmpty]: Start isEmpty. Operand 18440 states and 39313 transitions. [2022-12-14 11:24:17,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:17,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:17,468 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] [2022-12-14 11:24:17,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-14 11:24:17,468 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:17,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:17,468 INFO L85 PathProgramCache]: Analyzing trace with hash 210524536, now seen corresponding path program 17 times [2022-12-14 11:24:17,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:17,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231089849] [2022-12-14 11:24:17,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:17,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:19,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:19,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231089849] [2022-12-14 11:24:19,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231089849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:19,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:19,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:24:19,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430198172] [2022-12-14 11:24:19,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:19,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:24:19,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:19,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:24:19,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:24:19,849 INFO L87 Difference]: Start difference. First operand 18440 states and 39313 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:21,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:21,440 INFO L93 Difference]: Finished difference Result 27961 states and 58734 transitions. [2022-12-14 11:24:21,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:24:21,441 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:21,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:21,480 INFO L225 Difference]: With dead ends: 27961 [2022-12-14 11:24:21,480 INFO L226 Difference]: Without dead ends: 27961 [2022-12-14 11:24:21,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:24:21,481 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 829 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:21,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 398 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:24:21,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27961 states. [2022-12-14 11:24:21,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27961 to 18944. [2022-12-14 11:24:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18944 states, 18901 states have (on average 2.130575101846463) internal successors, (40270), 18943 states have internal predecessors, (40270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:21,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18944 states to 18944 states and 40270 transitions. [2022-12-14 11:24:21,779 INFO L78 Accepts]: Start accepts. Automaton has 18944 states and 40270 transitions. Word has length 31 [2022-12-14 11:24:21,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:21,780 INFO L495 AbstractCegarLoop]: Abstraction has 18944 states and 40270 transitions. [2022-12-14 11:24:21,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:21,780 INFO L276 IsEmpty]: Start isEmpty. Operand 18944 states and 40270 transitions. [2022-12-14 11:24:21,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:21,783 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:21,783 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] [2022-12-14 11:24:21,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-14 11:24:21,783 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:21,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1369079092, now seen corresponding path program 18 times [2022-12-14 11:24:21,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:21,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585130803] [2022-12-14 11:24:21,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:21,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:23,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:23,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585130803] [2022-12-14 11:24:23,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585130803] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:23,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:23,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:24:23,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479012535] [2022-12-14 11:24:23,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:23,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:24:23,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:23,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:24:23,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:23,926 INFO L87 Difference]: Start difference. First operand 18944 states and 40270 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:25,556 INFO L93 Difference]: Finished difference Result 27985 states and 58772 transitions. [2022-12-14 11:24:25,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:24:25,556 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:25,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:25,597 INFO L225 Difference]: With dead ends: 27985 [2022-12-14 11:24:25,597 INFO L226 Difference]: Without dead ends: 27985 [2022-12-14 11:24:25,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:24:25,598 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 642 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:25,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 411 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:24:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27985 states. [2022-12-14 11:24:25,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27985 to 18924. [2022-12-14 11:24:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18924 states, 18881 states have (on average 2.130819342195858) internal successors, (40232), 18923 states have internal predecessors, (40232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18924 states to 18924 states and 40232 transitions. [2022-12-14 11:24:25,879 INFO L78 Accepts]: Start accepts. Automaton has 18924 states and 40232 transitions. Word has length 31 [2022-12-14 11:24:25,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:25,879 INFO L495 AbstractCegarLoop]: Abstraction has 18924 states and 40232 transitions. [2022-12-14 11:24:25,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:25,880 INFO L276 IsEmpty]: Start isEmpty. Operand 18924 states and 40232 transitions. [2022-12-14 11:24:25,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:25,883 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:25,883 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] [2022-12-14 11:24:25,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-14 11:24:25,883 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:25,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:25,884 INFO L85 PathProgramCache]: Analyzing trace with hash -573775368, now seen corresponding path program 19 times [2022-12-14 11:24:25,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:25,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689066563] [2022-12-14 11:24:25,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:25,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:27,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:27,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689066563] [2022-12-14 11:24:27,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689066563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:27,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:27,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:24:27,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539786039] [2022-12-14 11:24:27,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:27,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:24:27,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:27,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:24:27,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:27,556 INFO L87 Difference]: Start difference. First operand 18924 states and 40232 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:28,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:28,792 INFO L93 Difference]: Finished difference Result 28431 states and 59670 transitions. [2022-12-14 11:24:28,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:24:28,793 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:28,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:28,834 INFO L225 Difference]: With dead ends: 28431 [2022-12-14 11:24:28,834 INFO L226 Difference]: Without dead ends: 28431 [2022-12-14 11:24:28,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:24:28,835 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 657 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:28,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 401 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:24:28,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28431 states. [2022-12-14 11:24:29,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28431 to 18904. [2022-12-14 11:24:29,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18904 states, 18861 states have (on average 2.1310641005248927) internal successors, (40194), 18903 states have internal predecessors, (40194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:29,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18904 states to 18904 states and 40194 transitions. [2022-12-14 11:24:29,119 INFO L78 Accepts]: Start accepts. Automaton has 18904 states and 40194 transitions. Word has length 31 [2022-12-14 11:24:29,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:29,119 INFO L495 AbstractCegarLoop]: Abstraction has 18904 states and 40194 transitions. [2022-12-14 11:24:29,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:29,119 INFO L276 IsEmpty]: Start isEmpty. Operand 18904 states and 40194 transitions. [2022-12-14 11:24:29,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:29,122 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:29,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:29,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-14 11:24:29,123 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:29,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:29,123 INFO L85 PathProgramCache]: Analyzing trace with hash -765545226, now seen corresponding path program 20 times [2022-12-14 11:24:29,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:29,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526447968] [2022-12-14 11:24:29,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:29,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:30,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:30,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526447968] [2022-12-14 11:24:30,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526447968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:30,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:30,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:24:30,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321268571] [2022-12-14 11:24:30,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:30,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:24:30,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:30,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:24:30,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:30,484 INFO L87 Difference]: Start difference. First operand 18904 states and 40194 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:32,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:32,878 INFO L93 Difference]: Finished difference Result 22885 states and 48331 transitions. [2022-12-14 11:24:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-14 11:24:32,879 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:32,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:32,906 INFO L225 Difference]: With dead ends: 22885 [2022-12-14 11:24:32,906 INFO L226 Difference]: Without dead ends: 22885 [2022-12-14 11:24:32,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=259, Invalid=671, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:24:32,907 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 415 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 2857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:32,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 375 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 2857 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 11:24:32,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22885 states. [2022-12-14 11:24:33,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22885 to 19444. [2022-12-14 11:24:33,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19444 states, 19401 states have (on average 2.1301994742539043) internal successors, (41328), 19443 states have internal predecessors, (41328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:33,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19444 states to 19444 states and 41328 transitions. [2022-12-14 11:24:33,168 INFO L78 Accepts]: Start accepts. Automaton has 19444 states and 41328 transitions. Word has length 31 [2022-12-14 11:24:33,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:33,168 INFO L495 AbstractCegarLoop]: Abstraction has 19444 states and 41328 transitions. [2022-12-14 11:24:33,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 19444 states and 41328 transitions. [2022-12-14 11:24:33,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:33,171 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:33,171 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] [2022-12-14 11:24:33,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-14 11:24:33,171 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:33,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:33,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1769062416, now seen corresponding path program 21 times [2022-12-14 11:24:33,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:33,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601573710] [2022-12-14 11:24:33,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:33,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:33,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:33,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:33,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601573710] [2022-12-14 11:24:33,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601573710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:33,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:33,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:24:33,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988581207] [2022-12-14 11:24:33,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:33,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:24:33,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:33,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:24:33,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:24:33,903 INFO L87 Difference]: Start difference. First operand 19444 states and 41328 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:35,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:35,104 INFO L93 Difference]: Finished difference Result 28175 states and 59201 transitions. [2022-12-14 11:24:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:24:35,105 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:35,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:35,143 INFO L225 Difference]: With dead ends: 28175 [2022-12-14 11:24:35,143 INFO L226 Difference]: Without dead ends: 28175 [2022-12-14 11:24:35,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:24:35,144 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 773 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:35,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 394 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:24:35,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28175 states. [2022-12-14 11:24:35,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28175 to 18541. [2022-12-14 11:24:35,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18541 states, 18498 states have (on average 2.132122391609904) internal successors, (39440), 18540 states have internal predecessors, (39440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18541 states to 18541 states and 39440 transitions. [2022-12-14 11:24:35,408 INFO L78 Accepts]: Start accepts. Automaton has 18541 states and 39440 transitions. Word has length 31 [2022-12-14 11:24:35,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:35,408 INFO L495 AbstractCegarLoop]: Abstraction has 18541 states and 39440 transitions. [2022-12-14 11:24:35,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:35,408 INFO L276 IsEmpty]: Start isEmpty. Operand 18541 states and 39440 transitions. [2022-12-14 11:24:35,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:35,411 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:35,411 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] [2022-12-14 11:24:35,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-14 11:24:35,411 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:35,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:35,412 INFO L85 PathProgramCache]: Analyzing trace with hash -556096401, now seen corresponding path program 7 times [2022-12-14 11:24:35,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:35,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218146949] [2022-12-14 11:24:35,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:35,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:35,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:35,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218146949] [2022-12-14 11:24:35,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218146949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:35,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:35,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:24:35,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620170121] [2022-12-14 11:24:35,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:35,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:24:35,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:35,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:24:35,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:24:35,791 INFO L87 Difference]: Start difference. First operand 18541 states and 39440 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:36,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:36,747 INFO L93 Difference]: Finished difference Result 22617 states and 47739 transitions. [2022-12-14 11:24:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:24:36,747 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:36,775 INFO L225 Difference]: With dead ends: 22617 [2022-12-14 11:24:36,775 INFO L226 Difference]: Without dead ends: 22617 [2022-12-14 11:24:36,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:24:36,776 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 573 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:36,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 374 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:24:36,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22617 states. [2022-12-14 11:24:36,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22617 to 16057. [2022-12-14 11:24:36,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16057 states, 16014 states have (on average 2.1238291494941928) internal successors, (34011), 16056 states have internal predecessors, (34011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16057 states to 16057 states and 34011 transitions. [2022-12-14 11:24:37,005 INFO L78 Accepts]: Start accepts. Automaton has 16057 states and 34011 transitions. Word has length 31 [2022-12-14 11:24:37,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:37,006 INFO L495 AbstractCegarLoop]: Abstraction has 16057 states and 34011 transitions. [2022-12-14 11:24:37,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:37,006 INFO L276 IsEmpty]: Start isEmpty. Operand 16057 states and 34011 transitions. [2022-12-14 11:24:37,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:37,009 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:37,009 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] [2022-12-14 11:24:37,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-14 11:24:37,009 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:37,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:37,009 INFO L85 PathProgramCache]: Analyzing trace with hash -428786016, now seen corresponding path program 13 times [2022-12-14 11:24:37,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:37,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620613755] [2022-12-14 11:24:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:37,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:38,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:38,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620613755] [2022-12-14 11:24:38,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620613755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:38,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:38,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:24:38,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773167833] [2022-12-14 11:24:38,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:38,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:24:38,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:38,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:24:38,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:38,021 INFO L87 Difference]: Start difference. First operand 16057 states and 34011 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:41,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:41,249 INFO L93 Difference]: Finished difference Result 20544 states and 43195 transitions. [2022-12-14 11:24:41,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 11:24:41,250 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:41,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:41,274 INFO L225 Difference]: With dead ends: 20544 [2022-12-14 11:24:41,274 INFO L226 Difference]: Without dead ends: 20544 [2022-12-14 11:24:41,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=224, Invalid=646, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:24:41,275 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 562 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 3330 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 3594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 3330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:41,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 563 Invalid, 3594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 3330 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 11:24:41,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20544 states. [2022-12-14 11:24:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20544 to 16847. [2022-12-14 11:24:41,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16847 states, 16804 states have (on average 2.1212806474648893) internal successors, (35646), 16846 states have internal predecessors, (35646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:41,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16847 states to 16847 states and 35646 transitions. [2022-12-14 11:24:41,493 INFO L78 Accepts]: Start accepts. Automaton has 16847 states and 35646 transitions. Word has length 31 [2022-12-14 11:24:41,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:41,493 INFO L495 AbstractCegarLoop]: Abstraction has 16847 states and 35646 transitions. [2022-12-14 11:24:41,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:41,493 INFO L276 IsEmpty]: Start isEmpty. Operand 16847 states and 35646 transitions. [2022-12-14 11:24:41,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:41,496 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:41,496 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] [2022-12-14 11:24:41,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-14 11:24:41,496 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:41,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:41,497 INFO L85 PathProgramCache]: Analyzing trace with hash -699342392, now seen corresponding path program 22 times [2022-12-14 11:24:41,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:41,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225301881] [2022-12-14 11:24:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:41,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:43,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:43,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225301881] [2022-12-14 11:24:43,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225301881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:43,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:43,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:24:43,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436687915] [2022-12-14 11:24:43,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:43,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:24:43,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:43,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:24:43,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:24:43,941 INFO L87 Difference]: Start difference. First operand 16847 states and 35646 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:45,939 INFO L93 Difference]: Finished difference Result 32624 states and 68171 transitions. [2022-12-14 11:24:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:24:45,939 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:45,985 INFO L225 Difference]: With dead ends: 32624 [2022-12-14 11:24:45,985 INFO L226 Difference]: Without dead ends: 32624 [2022-12-14 11:24:45,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:24:45,986 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 652 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 2123 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 2123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:45,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 392 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 2123 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 11:24:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32624 states. [2022-12-14 11:24:46,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32624 to 17166. [2022-12-14 11:24:46,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17166 states, 17123 states have (on average 2.121123634877066) internal successors, (36320), 17165 states have internal predecessors, (36320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:46,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17166 states to 17166 states and 36320 transitions. [2022-12-14 11:24:46,267 INFO L78 Accepts]: Start accepts. Automaton has 17166 states and 36320 transitions. Word has length 31 [2022-12-14 11:24:46,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:46,268 INFO L495 AbstractCegarLoop]: Abstraction has 17166 states and 36320 transitions. [2022-12-14 11:24:46,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:46,268 INFO L276 IsEmpty]: Start isEmpty. Operand 17166 states and 36320 transitions. [2022-12-14 11:24:46,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:46,271 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:46,271 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] [2022-12-14 11:24:46,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-14 11:24:46,271 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:46,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:46,272 INFO L85 PathProgramCache]: Analyzing trace with hash 459212164, now seen corresponding path program 23 times [2022-12-14 11:24:46,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:46,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230532678] [2022-12-14 11:24:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:46,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:48,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:48,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230532678] [2022-12-14 11:24:48,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230532678] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:48,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:48,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:24:48,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354300367] [2022-12-14 11:24:48,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:48,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:24:48,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:48,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:24:48,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:48,833 INFO L87 Difference]: Start difference. First operand 17166 states and 36320 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:50,342 INFO L93 Difference]: Finished difference Result 33071 states and 69070 transitions. [2022-12-14 11:24:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:24:50,343 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:50,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:50,392 INFO L225 Difference]: With dead ends: 33071 [2022-12-14 11:24:50,392 INFO L226 Difference]: Without dead ends: 33071 [2022-12-14 11:24:50,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:24:50,392 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 757 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:50,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 394 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:24:50,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33071 states. [2022-12-14 11:24:50,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33071 to 17122. [2022-12-14 11:24:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17122 states, 17079 states have (on average 2.1214356812459747) internal successors, (36232), 17121 states have internal predecessors, (36232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:50,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17122 states to 17122 states and 36232 transitions. [2022-12-14 11:24:50,721 INFO L78 Accepts]: Start accepts. Automaton has 17122 states and 36232 transitions. Word has length 31 [2022-12-14 11:24:50,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:50,721 INFO L495 AbstractCegarLoop]: Abstraction has 17122 states and 36232 transitions. [2022-12-14 11:24:50,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:50,721 INFO L276 IsEmpty]: Start isEmpty. Operand 17122 states and 36232 transitions. [2022-12-14 11:24:50,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:50,724 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:50,724 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] [2022-12-14 11:24:50,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-14 11:24:50,724 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:50,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:50,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1483642296, now seen corresponding path program 24 times [2022-12-14 11:24:50,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:50,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603727983] [2022-12-14 11:24:50,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:50,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:52,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:52,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603727983] [2022-12-14 11:24:52,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603727983] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:52,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:52,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:24:52,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747521587] [2022-12-14 11:24:52,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:52,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:24:52,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:52,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:24:52,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:52,264 INFO L87 Difference]: Start difference. First operand 17122 states and 36232 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:53,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:53,658 INFO L93 Difference]: Finished difference Result 32226 states and 67424 transitions. [2022-12-14 11:24:53,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:24:53,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:53,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:53,704 INFO L225 Difference]: With dead ends: 32226 [2022-12-14 11:24:53,704 INFO L226 Difference]: Without dead ends: 32226 [2022-12-14 11:24:53,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:24:53,705 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 654 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:53,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 385 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:24:53,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32226 states. [2022-12-14 11:24:53,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32226 to 16832. [2022-12-14 11:24:53,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16832 states, 16789 states have (on average 2.121389004705462) internal successors, (35616), 16831 states have internal predecessors, (35616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:53,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16832 states to 16832 states and 35616 transitions. [2022-12-14 11:24:53,992 INFO L78 Accepts]: Start accepts. Automaton has 16832 states and 35616 transitions. Word has length 31 [2022-12-14 11:24:53,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:53,992 INFO L495 AbstractCegarLoop]: Abstraction has 16832 states and 35616 transitions. [2022-12-14 11:24:53,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:53,992 INFO L276 IsEmpty]: Start isEmpty. Operand 16832 states and 35616 transitions. [2022-12-14 11:24:53,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:53,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:53,997 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] [2022-12-14 11:24:53,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-14 11:24:53,997 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:53,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:53,999 INFO L85 PathProgramCache]: Analyzing trace with hash -843885066, now seen corresponding path program 25 times [2022-12-14 11:24:53,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:53,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712911486] [2022-12-14 11:24:53,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:53,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:56,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:56,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:56,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712911486] [2022-12-14 11:24:56,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712911486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:56,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:56,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:24:56,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044165697] [2022-12-14 11:24:56,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:56,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:24:56,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:56,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:24:56,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:24:56,091 INFO L87 Difference]: Start difference. First operand 16832 states and 35616 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:58,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:58,060 INFO L93 Difference]: Finished difference Result 31958 states and 66833 transitions. [2022-12-14 11:24:58,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:24:58,060 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:24:58,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:58,104 INFO L225 Difference]: With dead ends: 31958 [2022-12-14 11:24:58,104 INFO L226 Difference]: Without dead ends: 31958 [2022-12-14 11:24:58,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:24:58,105 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 754 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 2549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:58,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 419 Invalid, 2549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 11:24:58,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31958 states. [2022-12-14 11:24:58,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31958 to 17074. [2022-12-14 11:24:58,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17074 states, 17031 states have (on average 2.121777934355) internal successors, (36136), 17073 states have internal predecessors, (36136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:58,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17074 states to 17074 states and 36136 transitions. [2022-12-14 11:24:58,383 INFO L78 Accepts]: Start accepts. Automaton has 17074 states and 36136 transitions. Word has length 31 [2022-12-14 11:24:58,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:58,383 INFO L495 AbstractCegarLoop]: Abstraction has 17074 states and 36136 transitions. [2022-12-14 11:24:58,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:58,383 INFO L276 IsEmpty]: Start isEmpty. Operand 17074 states and 36136 transitions. [2022-12-14 11:24:58,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:24:58,386 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:58,386 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] [2022-12-14 11:24:58,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-12-14 11:24:58,387 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:24:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:58,387 INFO L85 PathProgramCache]: Analyzing trace with hash 314669490, now seen corresponding path program 26 times [2022-12-14 11:24:58,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:58,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813552896] [2022-12-14 11:24:58,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:58,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:00,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:25:00,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:00,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813552896] [2022-12-14 11:25:00,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813552896] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:00,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:00,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:25:00,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577455350] [2022-12-14 11:25:00,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:00,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:25:00,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:00,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:25:00,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:25:00,497 INFO L87 Difference]: Start difference. First operand 17074 states and 36136 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:02,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:02,066 INFO L93 Difference]: Finished difference Result 31527 states and 66020 transitions. [2022-12-14 11:25:02,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:25:02,066 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:25:02,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:02,110 INFO L225 Difference]: With dead ends: 31527 [2022-12-14 11:25:02,110 INFO L226 Difference]: Without dead ends: 31527 [2022-12-14 11:25:02,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:25:02,111 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 649 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:02,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 393 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:25:02,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31527 states. [2022-12-14 11:25:02,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31527 to 16817. [2022-12-14 11:25:02,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16817 states, 16774 states have (on average 2.1214975557410276) internal successors, (35586), 16816 states have internal predecessors, (35586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:02,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16817 states to 16817 states and 35586 transitions. [2022-12-14 11:25:02,403 INFO L78 Accepts]: Start accepts. Automaton has 16817 states and 35586 transitions. Word has length 31 [2022-12-14 11:25:02,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:02,403 INFO L495 AbstractCegarLoop]: Abstraction has 16817 states and 35586 transitions. [2022-12-14 11:25:02,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:02,404 INFO L276 IsEmpty]: Start isEmpty. Operand 16817 states and 35586 transitions. [2022-12-14 11:25:02,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:25:02,407 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:02,407 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] [2022-12-14 11:25:02,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-14 11:25:02,407 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:25:02,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:02,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1359974922, now seen corresponding path program 27 times [2022-12-14 11:25:02,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:02,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762138591] [2022-12-14 11:25:02,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:02,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:25:04,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:04,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762138591] [2022-12-14 11:25:04,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762138591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:04,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:04,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:25:04,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521531499] [2022-12-14 11:25:04,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:04,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:25:04,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:04,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:25:04,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:25:04,651 INFO L87 Difference]: Start difference. First operand 16817 states and 35586 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:06,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:06,677 INFO L93 Difference]: Finished difference Result 30236 states and 63400 transitions. [2022-12-14 11:25:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:25:06,677 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:25:06,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:06,719 INFO L225 Difference]: With dead ends: 30236 [2022-12-14 11:25:06,719 INFO L226 Difference]: Without dead ends: 30236 [2022-12-14 11:25:06,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:25:06,719 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 581 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 2832 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 2832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:06,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 430 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 2832 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 11:25:06,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30236 states. [2022-12-14 11:25:06,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30236 to 16740. [2022-12-14 11:25:06,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16740 states, 16697 states have (on average 2.121997963706055) internal successors, (35431), 16739 states have internal predecessors, (35431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16740 states to 16740 states and 35431 transitions. [2022-12-14 11:25:06,971 INFO L78 Accepts]: Start accepts. Automaton has 16740 states and 35431 transitions. Word has length 31 [2022-12-14 11:25:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:06,971 INFO L495 AbstractCegarLoop]: Abstraction has 16740 states and 35431 transitions. [2022-12-14 11:25:06,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:06,971 INFO L276 IsEmpty]: Start isEmpty. Operand 16740 states and 35431 transitions. [2022-12-14 11:25:06,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:25:06,974 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:06,974 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] [2022-12-14 11:25:06,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-12-14 11:25:06,975 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:25:06,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:06,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1752405102, now seen corresponding path program 14 times [2022-12-14 11:25:06,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:06,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038990510] [2022-12-14 11:25:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:06,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:07,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:25:07,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:07,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038990510] [2022-12-14 11:25:07,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038990510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:07,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:07,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:25:07,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637750496] [2022-12-14 11:25:07,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:07,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:25:07,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:07,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:25:07,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:25:07,863 INFO L87 Difference]: Start difference. First operand 16740 states and 35431 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:11,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:11,344 INFO L93 Difference]: Finished difference Result 25124 states and 52724 transitions. [2022-12-14 11:25:11,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-14 11:25:11,345 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:25:11,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:11,379 INFO L225 Difference]: With dead ends: 25124 [2022-12-14 11:25:11,379 INFO L226 Difference]: Without dead ends: 25124 [2022-12-14 11:25:11,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 11:25:11,380 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 710 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 4272 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 4538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 4272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:11,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 456 Invalid, 4538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 4272 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 11:25:11,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25124 states. [2022-12-14 11:25:11,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25124 to 17035. [2022-12-14 11:25:11,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17035 states, 16992 states have (on average 2.1258239171374766) internal successors, (36122), 17034 states have internal predecessors, (36122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:11,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17035 states to 17035 states and 36122 transitions. [2022-12-14 11:25:11,630 INFO L78 Accepts]: Start accepts. Automaton has 17035 states and 36122 transitions. Word has length 31 [2022-12-14 11:25:11,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:11,630 INFO L495 AbstractCegarLoop]: Abstraction has 17035 states and 36122 transitions. [2022-12-14 11:25:11,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:11,630 INFO L276 IsEmpty]: Start isEmpty. Operand 17035 states and 36122 transitions. [2022-12-14 11:25:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:25:11,633 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:11,633 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] [2022-12-14 11:25:11,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-14 11:25:11,634 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:25:11,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:11,634 INFO L85 PathProgramCache]: Analyzing trace with hash 780062662, now seen corresponding path program 15 times [2022-12-14 11:25:11,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:11,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152819414] [2022-12-14 11:25:11,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:11,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:25:12,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:12,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152819414] [2022-12-14 11:25:12,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152819414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:12,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:12,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:25:12,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144179881] [2022-12-14 11:25:12,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:12,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 11:25:12,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 11:25:12,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:25:12,230 INFO L87 Difference]: Start difference. First operand 17035 states and 36122 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:14,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:14,597 INFO L93 Difference]: Finished difference Result 22139 states and 46559 transitions. [2022-12-14 11:25:14,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-14 11:25:14,598 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:25:14,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:14,624 INFO L225 Difference]: With dead ends: 22139 [2022-12-14 11:25:14,624 INFO L226 Difference]: Without dead ends: 22139 [2022-12-14 11:25:14,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2022-12-14 11:25:14,625 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 606 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 2834 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 3056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 2834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:14,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 501 Invalid, 3056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 2834 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 11:25:14,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22139 states. [2022-12-14 11:25:14,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22139 to 17559. [2022-12-14 11:25:14,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17559 states, 17516 states have (on average 2.124743092030144) internal successors, (37217), 17558 states have internal predecessors, (37217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:14,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17559 states to 17559 states and 37217 transitions. [2022-12-14 11:25:14,858 INFO L78 Accepts]: Start accepts. Automaton has 17559 states and 37217 transitions. Word has length 31 [2022-12-14 11:25:14,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:14,859 INFO L495 AbstractCegarLoop]: Abstraction has 17559 states and 37217 transitions. [2022-12-14 11:25:14,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:14,859 INFO L276 IsEmpty]: Start isEmpty. Operand 17559 states and 37217 transitions. [2022-12-14 11:25:14,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:25:14,862 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:14,862 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] [2022-12-14 11:25:14,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-12-14 11:25:14,862 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:25:14,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:14,863 INFO L85 PathProgramCache]: Analyzing trace with hash 363686912, now seen corresponding path program 16 times [2022-12-14 11:25:14,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:14,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071950788] [2022-12-14 11:25:14,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:14,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:25:17,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:17,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071950788] [2022-12-14 11:25:17,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071950788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:17,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:17,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:25:17,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644354115] [2022-12-14 11:25:17,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:17,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:25:17,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:17,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:25:17,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:25:17,613 INFO L87 Difference]: Start difference. First operand 17559 states and 37217 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:23,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:23,464 INFO L93 Difference]: Finished difference Result 20740 states and 43650 transitions. [2022-12-14 11:25:23,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-14 11:25:23,464 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:25:23,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:23,488 INFO L225 Difference]: With dead ends: 20740 [2022-12-14 11:25:23,489 INFO L226 Difference]: Without dead ends: 20740 [2022-12-14 11:25:23,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=613, Invalid=2927, Unknown=0, NotChecked=0, Total=3540 [2022-12-14 11:25:23,489 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 791 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 4650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:23,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 452 Invalid, 4650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 11:25:23,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20740 states. [2022-12-14 11:25:23,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20740 to 17602. [2022-12-14 11:25:23,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17602 states, 17559 states have (on average 2.1245515120451053) internal successors, (37305), 17601 states have internal predecessors, (37305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:23,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17602 states to 17602 states and 37305 transitions. [2022-12-14 11:25:23,707 INFO L78 Accepts]: Start accepts. Automaton has 17602 states and 37305 transitions. Word has length 31 [2022-12-14 11:25:23,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:23,707 INFO L495 AbstractCegarLoop]: Abstraction has 17602 states and 37305 transitions. [2022-12-14 11:25:23,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:23,707 INFO L276 IsEmpty]: Start isEmpty. Operand 17602 states and 37305 transitions. [2022-12-14 11:25:23,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:25:23,710 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:23,710 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] [2022-12-14 11:25:23,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-12-14 11:25:23,710 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:25:23,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:23,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1740471432, now seen corresponding path program 17 times [2022-12-14 11:25:23,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:23,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842737222] [2022-12-14 11:25:23,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:23,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:25:25,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:25,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842737222] [2022-12-14 11:25:25,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842737222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:25,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:25,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:25:25,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98784945] [2022-12-14 11:25:25,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:25,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:25:25,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:25,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:25:25,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:25:25,818 INFO L87 Difference]: Start difference. First operand 17602 states and 37305 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:30,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:30,494 INFO L93 Difference]: Finished difference Result 24056 states and 50623 transitions. [2022-12-14 11:25:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 11:25:30,495 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:25:30,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:30,523 INFO L225 Difference]: With dead ends: 24056 [2022-12-14 11:25:30,523 INFO L226 Difference]: Without dead ends: 24056 [2022-12-14 11:25:30,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-12-14 11:25:30,524 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 910 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 4394 mSolverCounterSat, 906 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 5300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 906 IncrementalHoareTripleChecker+Valid, 4394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:30,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 462 Invalid, 5300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [906 Valid, 4394 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 11:25:30,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24056 states. [2022-12-14 11:25:30,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24056 to 18564. [2022-12-14 11:25:30,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18564 states, 18521 states have (on average 2.1262350844986773) internal successors, (39380), 18563 states have internal predecessors, (39380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18564 states to 18564 states and 39380 transitions. [2022-12-14 11:25:30,777 INFO L78 Accepts]: Start accepts. Automaton has 18564 states and 39380 transitions. Word has length 31 [2022-12-14 11:25:30,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:30,777 INFO L495 AbstractCegarLoop]: Abstraction has 18564 states and 39380 transitions. [2022-12-14 11:25:30,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 18564 states and 39380 transitions. [2022-12-14 11:25:30,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:25:30,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:30,780 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] [2022-12-14 11:25:30,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-12-14 11:25:30,780 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:25:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:30,781 INFO L85 PathProgramCache]: Analyzing trace with hash 119528418, now seen corresponding path program 18 times [2022-12-14 11:25:30,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:30,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27852417] [2022-12-14 11:25:30,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:30,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:25:33,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:33,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27852417] [2022-12-14 11:25:33,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27852417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:33,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:33,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:25:33,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105005450] [2022-12-14 11:25:33,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:33,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:25:33,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:33,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:25:33,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:25:33,728 INFO L87 Difference]: Start difference. First operand 18564 states and 39380 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:41,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:41,164 INFO L93 Difference]: Finished difference Result 22303 states and 46964 transitions. [2022-12-14 11:25:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-14 11:25:41,165 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:25:41,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:41,193 INFO L225 Difference]: With dead ends: 22303 [2022-12-14 11:25:41,193 INFO L226 Difference]: Without dead ends: 22303 [2022-12-14 11:25:41,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=771, Invalid=3519, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 11:25:41,194 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 669 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 4204 mSolverCounterSat, 580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 4784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 580 IncrementalHoareTripleChecker+Valid, 4204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:41,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 521 Invalid, 4784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [580 Valid, 4204 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 11:25:41,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22303 states. [2022-12-14 11:25:41,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22303 to 18601. [2022-12-14 11:25:41,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18601 states, 18558 states have (on average 2.1260372885009162) internal successors, (39455), 18600 states have internal predecessors, (39455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:41,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18601 states to 18601 states and 39455 transitions. [2022-12-14 11:25:41,419 INFO L78 Accepts]: Start accepts. Automaton has 18601 states and 39455 transitions. Word has length 31 [2022-12-14 11:25:41,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:41,420 INFO L495 AbstractCegarLoop]: Abstraction has 18601 states and 39455 transitions. [2022-12-14 11:25:41,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:41,420 INFO L276 IsEmpty]: Start isEmpty. Operand 18601 states and 39455 transitions. [2022-12-14 11:25:41,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:25:41,423 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:41,423 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] [2022-12-14 11:25:41,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-12-14 11:25:41,423 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:25:41,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:41,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1450779068, now seen corresponding path program 19 times [2022-12-14 11:25:41,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:41,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184801740] [2022-12-14 11:25:41,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:41,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:25:44,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:44,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184801740] [2022-12-14 11:25:44,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184801740] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:44,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:44,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:25:44,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910306498] [2022-12-14 11:25:44,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:44,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:25:44,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:44,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:25:44,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:25:44,907 INFO L87 Difference]: Start difference. First operand 18601 states and 39455 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:51,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:25:51,610 INFO L93 Difference]: Finished difference Result 23499 states and 49388 transitions. [2022-12-14 11:25:51,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-14 11:25:51,610 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:25:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:25:51,636 INFO L225 Difference]: With dead ends: 23499 [2022-12-14 11:25:51,636 INFO L226 Difference]: Without dead ends: 23499 [2022-12-14 11:25:51,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=549, Invalid=2531, Unknown=0, NotChecked=0, Total=3080 [2022-12-14 11:25:51,637 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 593 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 5811 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 6178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 5811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:25:51,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 473 Invalid, 6178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 5811 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 11:25:51,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23499 states. [2022-12-14 11:25:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23499 to 18653. [2022-12-14 11:25:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18653 states, 18610 states have (on average 2.125792584631918) internal successors, (39561), 18652 states have internal predecessors, (39561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:51,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18653 states to 18653 states and 39561 transitions. [2022-12-14 11:25:51,872 INFO L78 Accepts]: Start accepts. Automaton has 18653 states and 39561 transitions. Word has length 31 [2022-12-14 11:25:51,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:25:51,872 INFO L495 AbstractCegarLoop]: Abstraction has 18653 states and 39561 transitions. [2022-12-14 11:25:51,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:25:51,872 INFO L276 IsEmpty]: Start isEmpty. Operand 18653 states and 39561 transitions. [2022-12-14 11:25:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:25:51,876 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:25:51,876 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] [2022-12-14 11:25:51,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-12-14 11:25:51,876 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:25:51,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:25:51,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1503149516, now seen corresponding path program 20 times [2022-12-14 11:25:51,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:25:51,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059857040] [2022-12-14 11:25:51,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:25:51,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:25:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:25:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:25:55,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:25:55,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059857040] [2022-12-14 11:25:55,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059857040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:25:55,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:25:55,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:25:55,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575218904] [2022-12-14 11:25:55,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:25:55,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:25:55,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:25:55,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:25:55,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:25:55,135 INFO L87 Difference]: Start difference. First operand 18653 states and 39561 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:02,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:02,201 INFO L93 Difference]: Finished difference Result 23577 states and 49545 transitions. [2022-12-14 11:26:02,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-14 11:26:02,201 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:02,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:02,232 INFO L225 Difference]: With dead ends: 23577 [2022-12-14 11:26:02,232 INFO L226 Difference]: Without dead ends: 23577 [2022-12-14 11:26:02,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=566, Invalid=2626, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 11:26:02,233 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 614 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 5840 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 6265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 5840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:02,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 473 Invalid, 6265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 5840 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 11:26:02,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23577 states. [2022-12-14 11:26:02,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23577 to 18683. [2022-12-14 11:26:02,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18683 states, 18640 states have (on average 2.125697424892704) internal successors, (39623), 18682 states have internal predecessors, (39623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18683 states to 18683 states and 39623 transitions. [2022-12-14 11:26:02,499 INFO L78 Accepts]: Start accepts. Automaton has 18683 states and 39623 transitions. Word has length 31 [2022-12-14 11:26:02,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:02,499 INFO L495 AbstractCegarLoop]: Abstraction has 18683 states and 39623 transitions. [2022-12-14 11:26:02,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:02,499 INFO L276 IsEmpty]: Start isEmpty. Operand 18683 states and 39623 transitions. [2022-12-14 11:26:02,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:02,502 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:02,502 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] [2022-12-14 11:26:02,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-12-14 11:26:02,503 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:02,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2064246383, now seen corresponding path program 8 times [2022-12-14 11:26:02,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:02,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356871488] [2022-12-14 11:26:02,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:02,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:03,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:03,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356871488] [2022-12-14 11:26:03,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356871488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:03,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:03,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:26:03,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116781645] [2022-12-14 11:26:03,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:03,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:26:03,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:03,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:26:03,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:26:03,686 INFO L87 Difference]: Start difference. First operand 18683 states and 39623 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:07,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:07,117 INFO L93 Difference]: Finished difference Result 23172 states and 48701 transitions. [2022-12-14 11:26:07,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 11:26:07,118 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:07,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:07,166 INFO L225 Difference]: With dead ends: 23172 [2022-12-14 11:26:07,166 INFO L226 Difference]: Without dead ends: 23172 [2022-12-14 11:26:07,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 11:26:07,166 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 748 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 3958 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 3993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:07,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1221 Invalid, 3993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3958 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:26:07,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23172 states. [2022-12-14 11:26:07,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23172 to 20607. [2022-12-14 11:26:07,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20607 states, 20564 states have (on average 2.128428321338261) internal successors, (43769), 20606 states have internal predecessors, (43769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:07,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20607 states to 20607 states and 43769 transitions. [2022-12-14 11:26:07,421 INFO L78 Accepts]: Start accepts. Automaton has 20607 states and 43769 transitions. Word has length 31 [2022-12-14 11:26:07,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:07,421 INFO L495 AbstractCegarLoop]: Abstraction has 20607 states and 43769 transitions. [2022-12-14 11:26:07,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:07,421 INFO L276 IsEmpty]: Start isEmpty. Operand 20607 states and 43769 transitions. [2022-12-14 11:26:07,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:07,425 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:07,425 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] [2022-12-14 11:26:07,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-12-14 11:26:07,425 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:07,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:07,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1124602026, now seen corresponding path program 21 times [2022-12-14 11:26:07,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:07,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795766595] [2022-12-14 11:26:07,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:07,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:08,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:08,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795766595] [2022-12-14 11:26:08,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795766595] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:08,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:08,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:26:08,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556428672] [2022-12-14 11:26:08,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:08,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:26:08,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:08,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:26:08,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:26:08,209 INFO L87 Difference]: Start difference. First operand 20607 states and 43769 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:12,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:12,727 INFO L93 Difference]: Finished difference Result 26164 states and 54836 transitions. [2022-12-14 11:26:12,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-14 11:26:12,728 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:12,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:12,763 INFO L225 Difference]: With dead ends: 26164 [2022-12-14 11:26:12,763 INFO L226 Difference]: Without dead ends: 26164 [2022-12-14 11:26:12,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1014 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=745, Invalid=3037, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 11:26:12,764 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 993 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 3676 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 3971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 3676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:12,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1485 Invalid, 3971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 3676 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 11:26:12,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26164 states. [2022-12-14 11:26:13,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26164 to 21938. [2022-12-14 11:26:13,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21938 states, 21895 states have (on average 2.1320849509020325) internal successors, (46682), 21937 states have internal predecessors, (46682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:13,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21938 states to 21938 states and 46682 transitions. [2022-12-14 11:26:13,073 INFO L78 Accepts]: Start accepts. Automaton has 21938 states and 46682 transitions. Word has length 31 [2022-12-14 11:26:13,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:13,073 INFO L495 AbstractCegarLoop]: Abstraction has 21938 states and 46682 transitions. [2022-12-14 11:26:13,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:13,073 INFO L276 IsEmpty]: Start isEmpty. Operand 21938 states and 46682 transitions. [2022-12-14 11:26:13,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:13,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:13,077 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] [2022-12-14 11:26:13,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-12-14 11:26:13,078 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:13,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:13,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1560570305, now seen corresponding path program 9 times [2022-12-14 11:26:13,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:13,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056014381] [2022-12-14 11:26:13,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:13,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:14,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:14,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056014381] [2022-12-14 11:26:14,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056014381] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:14,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:14,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:26:14,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589167356] [2022-12-14 11:26:14,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:14,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:26:14,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:14,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:26:14,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:26:14,069 INFO L87 Difference]: Start difference. First operand 21938 states and 46682 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:16,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:16,610 INFO L93 Difference]: Finished difference Result 23847 states and 50318 transitions. [2022-12-14 11:26:16,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 11:26:16,611 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:16,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:16,640 INFO L225 Difference]: With dead ends: 23847 [2022-12-14 11:26:16,640 INFO L226 Difference]: Without dead ends: 23847 [2022-12-14 11:26:16,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:26:16,641 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 507 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 2927 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 2956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:16,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 1262 Invalid, 2956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2927 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 11:26:16,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23847 states. [2022-12-14 11:26:16,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23847 to 21938. [2022-12-14 11:26:16,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21938 states, 21895 states have (on average 2.132176295957981) internal successors, (46684), 21937 states have internal predecessors, (46684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21938 states to 21938 states and 46684 transitions. [2022-12-14 11:26:16,917 INFO L78 Accepts]: Start accepts. Automaton has 21938 states and 46684 transitions. Word has length 31 [2022-12-14 11:26:16,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:16,918 INFO L495 AbstractCegarLoop]: Abstraction has 21938 states and 46684 transitions. [2022-12-14 11:26:16,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:16,918 INFO L276 IsEmpty]: Start isEmpty. Operand 21938 states and 46684 transitions. [2022-12-14 11:26:16,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:16,921 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:16,921 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] [2022-12-14 11:26:16,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-12-14 11:26:16,921 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:16,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:16,922 INFO L85 PathProgramCache]: Analyzing trace with hash -349928873, now seen corresponding path program 10 times [2022-12-14 11:26:16,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:16,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845033898] [2022-12-14 11:26:16,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:16,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:18,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:18,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:18,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845033898] [2022-12-14 11:26:18,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845033898] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:18,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:18,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:26:18,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022522814] [2022-12-14 11:26:18,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:18,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:26:18,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:18,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:26:18,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:26:18,210 INFO L87 Difference]: Start difference. First operand 21938 states and 46684 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:21,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:21,024 INFO L93 Difference]: Finished difference Result 23835 states and 50294 transitions. [2022-12-14 11:26:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 11:26:21,025 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:21,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:21,054 INFO L225 Difference]: With dead ends: 23835 [2022-12-14 11:26:21,055 INFO L226 Difference]: Without dead ends: 23835 [2022-12-14 11:26:21,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 11:26:21,055 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 616 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 3003 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 3034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 3003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:21,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 1167 Invalid, 3034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3003 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 11:26:21,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23835 states. [2022-12-14 11:26:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23835 to 21938. [2022-12-14 11:26:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21938 states, 21895 states have (on average 2.13226764101393) internal successors, (46686), 21937 states have internal predecessors, (46686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:21,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21938 states to 21938 states and 46686 transitions. [2022-12-14 11:26:21,341 INFO L78 Accepts]: Start accepts. Automaton has 21938 states and 46686 transitions. Word has length 31 [2022-12-14 11:26:21,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:21,342 INFO L495 AbstractCegarLoop]: Abstraction has 21938 states and 46686 transitions. [2022-12-14 11:26:21,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:21,342 INFO L276 IsEmpty]: Start isEmpty. Operand 21938 states and 46686 transitions. [2022-12-14 11:26:21,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:21,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:21,345 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] [2022-12-14 11:26:21,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-12-14 11:26:21,346 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:21,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:21,347 INFO L85 PathProgramCache]: Analyzing trace with hash -610004303, now seen corresponding path program 11 times [2022-12-14 11:26:21,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:21,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195129672] [2022-12-14 11:26:21,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:21,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:22,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:22,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195129672] [2022-12-14 11:26:22,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195129672] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:22,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:22,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:26:22,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096266240] [2022-12-14 11:26:22,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:22,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:26:22,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:26:22,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:26:22,237 INFO L87 Difference]: Start difference. First operand 21938 states and 46686 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:25,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:25,428 INFO L93 Difference]: Finished difference Result 23812 states and 50246 transitions. [2022-12-14 11:26:25,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 11:26:25,428 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:25,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:25,457 INFO L225 Difference]: With dead ends: 23812 [2022-12-14 11:26:25,457 INFO L226 Difference]: Without dead ends: 23812 [2022-12-14 11:26:25,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:26:25,458 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 576 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 4562 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 4583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:25,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1278 Invalid, 4583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4562 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:26:25,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23812 states. [2022-12-14 11:26:25,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23812 to 21887. [2022-12-14 11:26:25,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21887 states, 21844 states have (on average 2.1319813221021793) internal successors, (46571), 21886 states have internal predecessors, (46571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:25,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21887 states to 21887 states and 46571 transitions. [2022-12-14 11:26:25,734 INFO L78 Accepts]: Start accepts. Automaton has 21887 states and 46571 transitions. Word has length 31 [2022-12-14 11:26:25,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:25,734 INFO L495 AbstractCegarLoop]: Abstraction has 21887 states and 46571 transitions. [2022-12-14 11:26:25,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand 21887 states and 46571 transitions. [2022-12-14 11:26:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:25,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:25,738 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] [2022-12-14 11:26:25,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-12-14 11:26:25,738 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:25,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:25,738 INFO L85 PathProgramCache]: Analyzing trace with hash -299662984, now seen corresponding path program 28 times [2022-12-14 11:26:25,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:25,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624168121] [2022-12-14 11:26:25,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:25,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:28,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:28,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624168121] [2022-12-14 11:26:28,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624168121] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:28,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:28,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:26:28,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449048014] [2022-12-14 11:26:28,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:28,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:26:28,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:28,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:26:28,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:26:28,050 INFO L87 Difference]: Start difference. First operand 21887 states and 46571 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:29,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:29,701 INFO L93 Difference]: Finished difference Result 34764 states and 73297 transitions. [2022-12-14 11:26:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:26:29,702 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:29,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:29,750 INFO L225 Difference]: With dead ends: 34764 [2022-12-14 11:26:29,751 INFO L226 Difference]: Without dead ends: 34764 [2022-12-14 11:26:29,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=192, Invalid=458, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:26:29,751 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 661 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:29,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 256 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:26:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34764 states. [2022-12-14 11:26:30,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34764 to 22052. [2022-12-14 11:26:30,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22052 states, 22009 states have (on average 2.1324912535780816) internal successors, (46934), 22051 states have internal predecessors, (46934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:30,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22052 states to 22052 states and 46934 transitions. [2022-12-14 11:26:30,080 INFO L78 Accepts]: Start accepts. Automaton has 22052 states and 46934 transitions. Word has length 31 [2022-12-14 11:26:30,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:30,080 INFO L495 AbstractCegarLoop]: Abstraction has 22052 states and 46934 transitions. [2022-12-14 11:26:30,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:30,080 INFO L276 IsEmpty]: Start isEmpty. Operand 22052 states and 46934 transitions. [2022-12-14 11:26:30,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:30,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:30,084 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] [2022-12-14 11:26:30,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-12-14 11:26:30,084 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:30,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:30,085 INFO L85 PathProgramCache]: Analyzing trace with hash 858891572, now seen corresponding path program 29 times [2022-12-14 11:26:30,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:30,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468744173] [2022-12-14 11:26:30,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:30,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:32,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:32,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468744173] [2022-12-14 11:26:32,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468744173] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:32,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:32,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:26:32,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505860293] [2022-12-14 11:26:32,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:32,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:26:32,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:32,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:26:32,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:26:32,477 INFO L87 Difference]: Start difference. First operand 22052 states and 46934 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:34,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:34,270 INFO L93 Difference]: Finished difference Result 34995 states and 73761 transitions. [2022-12-14 11:26:34,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:26:34,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:34,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:34,321 INFO L225 Difference]: With dead ends: 34995 [2022-12-14 11:26:34,321 INFO L226 Difference]: Without dead ends: 34995 [2022-12-14 11:26:34,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:26:34,322 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 538 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:34,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 256 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:26:34,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34995 states. [2022-12-14 11:26:34,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34995 to 22019. [2022-12-14 11:26:34,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22019 states, 21976 states have (on average 2.13269020749909) internal successors, (46868), 22018 states have internal predecessors, (46868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22019 states to 22019 states and 46868 transitions. [2022-12-14 11:26:34,644 INFO L78 Accepts]: Start accepts. Automaton has 22019 states and 46868 transitions. Word has length 31 [2022-12-14 11:26:34,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:34,644 INFO L495 AbstractCegarLoop]: Abstraction has 22019 states and 46868 transitions. [2022-12-14 11:26:34,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:34,644 INFO L276 IsEmpty]: Start isEmpty. Operand 22019 states and 46868 transitions. [2022-12-14 11:26:34,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:34,648 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:34,648 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] [2022-12-14 11:26:34,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-12-14 11:26:34,648 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:34,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:34,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1083962888, now seen corresponding path program 30 times [2022-12-14 11:26:34,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:34,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107419003] [2022-12-14 11:26:34,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:34,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:36,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:36,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107419003] [2022-12-14 11:26:36,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107419003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:36,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:36,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:26:36,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057379842] [2022-12-14 11:26:36,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:36,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:26:36,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:36,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:26:36,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:26:36,399 INFO L87 Difference]: Start difference. First operand 22019 states and 46868 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:38,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:38,288 INFO L93 Difference]: Finished difference Result 34677 states and 73175 transitions. [2022-12-14 11:26:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:26:38,289 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:38,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:38,361 INFO L225 Difference]: With dead ends: 34677 [2022-12-14 11:26:38,362 INFO L226 Difference]: Without dead ends: 34677 [2022-12-14 11:26:38,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:26:38,362 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 684 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:38,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 253 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:26:38,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34677 states. [2022-12-14 11:26:38,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34677 to 21758. [2022-12-14 11:26:38,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21758 states, 21715 states have (on average 2.1326272162099933) internal successors, (46310), 21757 states have internal predecessors, (46310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:38,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21758 states to 21758 states and 46310 transitions. [2022-12-14 11:26:38,649 INFO L78 Accepts]: Start accepts. Automaton has 21758 states and 46310 transitions. Word has length 31 [2022-12-14 11:26:38,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:38,650 INFO L495 AbstractCegarLoop]: Abstraction has 21758 states and 46310 transitions. [2022-12-14 11:26:38,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:38,650 INFO L276 IsEmpty]: Start isEmpty. Operand 21758 states and 46310 transitions. [2022-12-14 11:26:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:38,654 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:38,654 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] [2022-12-14 11:26:38,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-12-14 11:26:38,654 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:38,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:38,655 INFO L85 PathProgramCache]: Analyzing trace with hash -444205658, now seen corresponding path program 31 times [2022-12-14 11:26:38,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:38,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434773090] [2022-12-14 11:26:38,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:38,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:41,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:41,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:41,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434773090] [2022-12-14 11:26:41,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434773090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:41,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:41,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:26:41,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361442794] [2022-12-14 11:26:41,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:41,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:26:41,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:41,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:26:41,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:26:41,063 INFO L87 Difference]: Start difference. First operand 21758 states and 46310 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:42,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:42,923 INFO L93 Difference]: Finished difference Result 36141 states and 76186 transitions. [2022-12-14 11:26:42,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:26:42,924 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:42,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:42,975 INFO L225 Difference]: With dead ends: 36141 [2022-12-14 11:26:42,975 INFO L226 Difference]: Without dead ends: 36141 [2022-12-14 11:26:42,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:26:42,975 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 598 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:42,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 274 Invalid, 2570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 2231 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:26:43,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36141 states. [2022-12-14 11:26:43,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36141 to 21989. [2022-12-14 11:26:43,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21989 states, 21946 states have (on average 2.13287159391233) internal successors, (46808), 21988 states have internal predecessors, (46808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21989 states to 21989 states and 46808 transitions. [2022-12-14 11:26:43,313 INFO L78 Accepts]: Start accepts. Automaton has 21989 states and 46808 transitions. Word has length 31 [2022-12-14 11:26:43,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:43,314 INFO L495 AbstractCegarLoop]: Abstraction has 21989 states and 46808 transitions. [2022-12-14 11:26:43,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand 21989 states and 46808 transitions. [2022-12-14 11:26:43,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:43,335 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:43,335 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] [2022-12-14 11:26:43,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-12-14 11:26:43,335 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:43,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:43,336 INFO L85 PathProgramCache]: Analyzing trace with hash 714348898, now seen corresponding path program 32 times [2022-12-14 11:26:43,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:43,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927363798] [2022-12-14 11:26:43,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:43,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:45,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:45,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:45,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927363798] [2022-12-14 11:26:45,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927363798] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:45,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:45,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:26:45,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664345601] [2022-12-14 11:26:45,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:45,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:26:45,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:45,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:26:45,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:26:45,507 INFO L87 Difference]: Start difference. First operand 21989 states and 46808 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:47,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:47,052 INFO L93 Difference]: Finished difference Result 35930 states and 75815 transitions. [2022-12-14 11:26:47,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:26:47,053 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:47,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:47,100 INFO L225 Difference]: With dead ends: 35930 [2022-12-14 11:26:47,100 INFO L226 Difference]: Without dead ends: 35930 [2022-12-14 11:26:47,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:26:47,101 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 689 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:47,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 255 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:26:47,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35930 states. [2022-12-14 11:26:47,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35930 to 21761. [2022-12-14 11:26:47,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21761 states, 21718 states have (on average 2.1326088958467633) internal successors, (46316), 21760 states have internal predecessors, (46316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:47,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21761 states to 21761 states and 46316 transitions. [2022-12-14 11:26:47,420 INFO L78 Accepts]: Start accepts. Automaton has 21761 states and 46316 transitions. Word has length 31 [2022-12-14 11:26:47,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:47,421 INFO L495 AbstractCegarLoop]: Abstraction has 21761 states and 46316 transitions. [2022-12-14 11:26:47,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:47,421 INFO L276 IsEmpty]: Start isEmpty. Operand 21761 states and 46316 transitions. [2022-12-14 11:26:47,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:47,424 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:47,425 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] [2022-12-14 11:26:47,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-12-14 11:26:47,425 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:47,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:47,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1759654330, now seen corresponding path program 33 times [2022-12-14 11:26:47,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:47,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081285517] [2022-12-14 11:26:47,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:47,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:49,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:49,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081285517] [2022-12-14 11:26:49,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081285517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:49,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:49,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:26:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507441859] [2022-12-14 11:26:49,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:49,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:26:49,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:49,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:26:49,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:26:49,580 INFO L87 Difference]: Start difference. First operand 21761 states and 46316 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:26:51,323 INFO L93 Difference]: Finished difference Result 35292 states and 74512 transitions. [2022-12-14 11:26:51,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:26:51,324 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:26:51,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:26:51,375 INFO L225 Difference]: With dead ends: 35292 [2022-12-14 11:26:51,376 INFO L226 Difference]: Without dead ends: 35292 [2022-12-14 11:26:51,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:26:51,376 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 546 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 2397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:26:51,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 276 Invalid, 2397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:26:51,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35292 states. [2022-12-14 11:26:51,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35292 to 21755. [2022-12-14 11:26:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21755 states, 21712 states have (on average 2.1326455416359615) internal successors, (46304), 21754 states have internal predecessors, (46304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21755 states to 21755 states and 46304 transitions. [2022-12-14 11:26:51,733 INFO L78 Accepts]: Start accepts. Automaton has 21755 states and 46304 transitions. Word has length 31 [2022-12-14 11:26:51,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:26:51,733 INFO L495 AbstractCegarLoop]: Abstraction has 21755 states and 46304 transitions. [2022-12-14 11:26:51,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:26:51,734 INFO L276 IsEmpty]: Start isEmpty. Operand 21755 states and 46304 transitions. [2022-12-14 11:26:51,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:26:51,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:26:51,737 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] [2022-12-14 11:26:51,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-12-14 11:26:51,737 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:26:51,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:26:51,738 INFO L85 PathProgramCache]: Analyzing trace with hash 519207826, now seen corresponding path program 22 times [2022-12-14 11:26:51,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:26:51,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146151326] [2022-12-14 11:26:51,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:26:51,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:26:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:26:54,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:26:54,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:26:54,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146151326] [2022-12-14 11:26:54,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146151326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:26:54,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:26:54,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:26:54,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888280890] [2022-12-14 11:26:54,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:26:54,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:26:54,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:26:54,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:26:54,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:26:54,501 INFO L87 Difference]: Start difference. First operand 21755 states and 46304 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:01,493 INFO L93 Difference]: Finished difference Result 25278 states and 53418 transitions. [2022-12-14 11:27:01,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-14 11:27:01,493 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:27:01,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:01,527 INFO L225 Difference]: With dead ends: 25278 [2022-12-14 11:27:01,528 INFO L226 Difference]: Without dead ends: 25278 [2022-12-14 11:27:01,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1220 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=789, Invalid=3767, Unknown=0, NotChecked=0, Total=4556 [2022-12-14 11:27:01,528 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 659 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 5063 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 5693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 5063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:01,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 524 Invalid, 5693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 5063 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 11:27:01,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25278 states. [2022-12-14 11:27:01,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25278 to 22215. [2022-12-14 11:27:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22215 states, 22172 states have (on average 2.131562330867761) internal successors, (47261), 22214 states have internal predecessors, (47261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:01,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22215 states to 22215 states and 47261 transitions. [2022-12-14 11:27:01,810 INFO L78 Accepts]: Start accepts. Automaton has 22215 states and 47261 transitions. Word has length 31 [2022-12-14 11:27:01,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:01,810 INFO L495 AbstractCegarLoop]: Abstraction has 22215 states and 47261 transitions. [2022-12-14 11:27:01,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 22215 states and 47261 transitions. [2022-12-14 11:27:01,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:27:01,814 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:01,814 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] [2022-12-14 11:27:01,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-12-14 11:27:01,814 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:27:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1051099660, now seen corresponding path program 23 times [2022-12-14 11:27:01,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:01,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650885885] [2022-12-14 11:27:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:01,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:27:05,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:05,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650885885] [2022-12-14 11:27:05,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650885885] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:05,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:05,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:27:05,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15100663] [2022-12-14 11:27:05,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:05,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:27:05,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:05,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:27:05,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:27:05,635 INFO L87 Difference]: Start difference. First operand 22215 states and 47261 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:12,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:12,824 INFO L93 Difference]: Finished difference Result 26798 states and 56524 transitions. [2022-12-14 11:27:12,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-14 11:27:12,824 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:27:12,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:12,859 INFO L225 Difference]: With dead ends: 26798 [2022-12-14 11:27:12,859 INFO L226 Difference]: Without dead ends: 26798 [2022-12-14 11:27:12,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=433, Invalid=2017, Unknown=0, NotChecked=0, Total=2450 [2022-12-14 11:27:12,860 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 539 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 5239 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 5641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 5239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:12,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 483 Invalid, 5641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 5239 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 11:27:12,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26798 states. [2022-12-14 11:27:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26798 to 22241. [2022-12-14 11:27:13,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22241 states, 22198 states have (on average 2.131453284079647) internal successors, (47314), 22240 states have internal predecessors, (47314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22241 states to 22241 states and 47314 transitions. [2022-12-14 11:27:13,151 INFO L78 Accepts]: Start accepts. Automaton has 22241 states and 47314 transitions. Word has length 31 [2022-12-14 11:27:13,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:13,151 INFO L495 AbstractCegarLoop]: Abstraction has 22241 states and 47314 transitions. [2022-12-14 11:27:13,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:13,151 INFO L276 IsEmpty]: Start isEmpty. Operand 22241 states and 47314 transitions. [2022-12-14 11:27:13,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:27:13,155 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:13,155 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] [2022-12-14 11:27:13,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-12-14 11:27:13,155 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:27:13,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:13,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1103470108, now seen corresponding path program 24 times [2022-12-14 11:27:13,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:13,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952574820] [2022-12-14 11:27:13,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:13,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:27:15,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:15,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952574820] [2022-12-14 11:27:15,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952574820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:15,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:15,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:27:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96904527] [2022-12-14 11:27:15,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:15,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:27:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:15,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:27:15,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:27:15,934 INFO L87 Difference]: Start difference. First operand 22241 states and 47314 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:23,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:23,101 INFO L93 Difference]: Finished difference Result 27025 states and 57004 transitions. [2022-12-14 11:27:23,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-14 11:27:23,102 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:27:23,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:23,137 INFO L225 Difference]: With dead ends: 27025 [2022-12-14 11:27:23,137 INFO L226 Difference]: Without dead ends: 27025 [2022-12-14 11:27:23,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=566, Invalid=2856, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 11:27:23,137 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 631 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 6307 mSolverCounterSat, 626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 6933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 6307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:23,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 551 Invalid, 6933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [626 Valid, 6307 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 11:27:23,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27025 states. [2022-12-14 11:27:23,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27025 to 22276. [2022-12-14 11:27:23,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22276 states, 22233 states have (on average 2.1312463455224218) internal successors, (47384), 22275 states have internal predecessors, (47384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:23,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22276 states to 22276 states and 47384 transitions. [2022-12-14 11:27:23,412 INFO L78 Accepts]: Start accepts. Automaton has 22276 states and 47384 transitions. Word has length 31 [2022-12-14 11:27:23,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:23,413 INFO L495 AbstractCegarLoop]: Abstraction has 22276 states and 47384 transitions. [2022-12-14 11:27:23,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:23,413 INFO L276 IsEmpty]: Start isEmpty. Operand 22276 states and 47384 transitions. [2022-12-14 11:27:23,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:27:23,417 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:23,417 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] [2022-12-14 11:27:23,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-12-14 11:27:23,417 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:27:23,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:23,417 INFO L85 PathProgramCache]: Analyzing trace with hash 756529742, now seen corresponding path program 25 times [2022-12-14 11:27:23,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:23,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789962386] [2022-12-14 11:27:23,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:23,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:26,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:27:26,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:26,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789962386] [2022-12-14 11:27:26,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789962386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:26,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:26,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:27:26,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183610167] [2022-12-14 11:27:26,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:26,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:27:26,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:26,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:27:26,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:27:26,529 INFO L87 Difference]: Start difference. First operand 22276 states and 47384 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:32,943 INFO L93 Difference]: Finished difference Result 26839 states and 56604 transitions. [2022-12-14 11:27:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-14 11:27:32,944 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:27:32,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:32,979 INFO L225 Difference]: With dead ends: 26839 [2022-12-14 11:27:32,979 INFO L226 Difference]: Without dead ends: 26839 [2022-12-14 11:27:32,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 11:27:32,979 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 496 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 6289 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 6708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 6289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:32,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 551 Invalid, 6708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 6289 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 11:27:33,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26839 states. [2022-12-14 11:27:33,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26839 to 22271. [2022-12-14 11:27:33,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22271 states, 22228 states have (on average 2.131365844880331) internal successors, (47376), 22270 states have internal predecessors, (47376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22271 states to 22271 states and 47376 transitions. [2022-12-14 11:27:33,309 INFO L78 Accepts]: Start accepts. Automaton has 22271 states and 47376 transitions. Word has length 31 [2022-12-14 11:27:33,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:33,309 INFO L495 AbstractCegarLoop]: Abstraction has 22271 states and 47376 transitions. [2022-12-14 11:27:33,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:33,309 INFO L276 IsEmpty]: Start isEmpty. Operand 22271 states and 47376 transitions. [2022-12-14 11:27:33,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:27:33,313 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:33,313 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] [2022-12-14 11:27:33,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-12-14 11:27:33,313 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:27:33,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:33,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1831041505, now seen corresponding path program 12 times [2022-12-14 11:27:33,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:33,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568376439] [2022-12-14 11:27:33,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:33,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:27:34,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:34,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568376439] [2022-12-14 11:27:34,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568376439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:34,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:34,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:27:34,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160732702] [2022-12-14 11:27:34,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:34,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 11:27:34,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:34,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 11:27:34,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:27:34,268 INFO L87 Difference]: Start difference. First operand 22271 states and 47376 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:36,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:36,038 INFO L93 Difference]: Finished difference Result 25634 states and 54259 transitions. [2022-12-14 11:27:36,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 11:27:36,039 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:27:36,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:36,075 INFO L225 Difference]: With dead ends: 25634 [2022-12-14 11:27:36,075 INFO L226 Difference]: Without dead ends: 25634 [2022-12-14 11:27:36,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2022-12-14 11:27:36,075 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 447 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 2806 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:36,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 892 Invalid, 2824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2806 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:27:36,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25634 states. [2022-12-14 11:27:36,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25634 to 22698. [2022-12-14 11:27:36,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22698 states, 22655 states have (on average 2.1294636945486647) internal successors, (48243), 22697 states have internal predecessors, (48243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:36,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22698 states to 22698 states and 48243 transitions. [2022-12-14 11:27:36,374 INFO L78 Accepts]: Start accepts. Automaton has 22698 states and 48243 transitions. Word has length 31 [2022-12-14 11:27:36,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:36,374 INFO L495 AbstractCegarLoop]: Abstraction has 22698 states and 48243 transitions. [2022-12-14 11:27:36,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:36,374 INFO L276 IsEmpty]: Start isEmpty. Operand 22698 states and 48243 transitions. [2022-12-14 11:27:36,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:27:36,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:36,378 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] [2022-12-14 11:27:36,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-12-14 11:27:36,379 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:27:36,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:36,379 INFO L85 PathProgramCache]: Analyzing trace with hash -724922618, now seen corresponding path program 26 times [2022-12-14 11:27:36,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:36,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277749097] [2022-12-14 11:27:36,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:36,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:27:37,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:37,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277749097] [2022-12-14 11:27:37,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277749097] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:37,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:37,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:27:37,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822203222] [2022-12-14 11:27:37,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:37,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:27:37,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:37,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:27:37,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:27:37,192 INFO L87 Difference]: Start difference. First operand 22698 states and 48243 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:40,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:40,171 INFO L93 Difference]: Finished difference Result 28215 states and 59382 transitions. [2022-12-14 11:27:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-14 11:27:40,171 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:27:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:40,240 INFO L225 Difference]: With dead ends: 28215 [2022-12-14 11:27:40,240 INFO L226 Difference]: Without dead ends: 28215 [2022-12-14 11:27:40,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=501, Invalid=1851, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 11:27:40,241 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 787 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 3230 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 3573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 3230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:40,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1320 Invalid, 3573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 3230 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 11:27:40,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28215 states. [2022-12-14 11:27:40,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28215 to 23212. [2022-12-14 11:27:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23212 states, 23169 states have (on average 2.1281022055332555) internal successors, (49306), 23211 states have internal predecessors, (49306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:40,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23212 states to 23212 states and 49306 transitions. [2022-12-14 11:27:40,523 INFO L78 Accepts]: Start accepts. Automaton has 23212 states and 49306 transitions. Word has length 31 [2022-12-14 11:27:40,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:40,524 INFO L495 AbstractCegarLoop]: Abstraction has 23212 states and 49306 transitions. [2022-12-14 11:27:40,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:40,524 INFO L276 IsEmpty]: Start isEmpty. Operand 23212 states and 49306 transitions. [2022-12-14 11:27:40,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:27:40,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:40,528 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] [2022-12-14 11:27:40,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-12-14 11:27:40,528 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:27:40,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:40,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1960249713, now seen corresponding path program 13 times [2022-12-14 11:27:40,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:40,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109400347] [2022-12-14 11:27:40,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:40,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:41,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:27:41,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:41,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109400347] [2022-12-14 11:27:41,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109400347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:41,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:41,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:27:41,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320896736] [2022-12-14 11:27:41,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:41,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:27:41,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:41,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:27:41,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:27:41,553 INFO L87 Difference]: Start difference. First operand 23212 states and 49306 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:43,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:43,472 INFO L93 Difference]: Finished difference Result 26110 states and 55160 transitions. [2022-12-14 11:27:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 11:27:43,473 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:27:43,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:43,510 INFO L225 Difference]: With dead ends: 26110 [2022-12-14 11:27:43,510 INFO L226 Difference]: Without dead ends: 26110 [2022-12-14 11:27:43,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:27:43,511 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 532 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:43,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1141 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:27:43,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26110 states. [2022-12-14 11:27:43,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26110 to 23212. [2022-12-14 11:27:43,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23212 states, 23169 states have (on average 2.128188527774181) internal successors, (49308), 23211 states have internal predecessors, (49308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:43,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23212 states to 23212 states and 49308 transitions. [2022-12-14 11:27:43,831 INFO L78 Accepts]: Start accepts. Automaton has 23212 states and 49308 transitions. Word has length 31 [2022-12-14 11:27:43,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:43,832 INFO L495 AbstractCegarLoop]: Abstraction has 23212 states and 49308 transitions. [2022-12-14 11:27:43,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:43,832 INFO L276 IsEmpty]: Start isEmpty. Operand 23212 states and 49308 transitions. [2022-12-14 11:27:43,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:27:43,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:43,836 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] [2022-12-14 11:27:43,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-12-14 11:27:43,836 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:27:43,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:43,837 INFO L85 PathProgramCache]: Analyzing trace with hash 49750535, now seen corresponding path program 14 times [2022-12-14 11:27:43,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:43,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582134610] [2022-12-14 11:27:43,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:43,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:44,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:27:44,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:44,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582134610] [2022-12-14 11:27:44,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582134610] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:44,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:44,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:27:44,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175904012] [2022-12-14 11:27:44,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:44,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:27:44,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:44,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:27:44,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:27:44,731 INFO L87 Difference]: Start difference. First operand 23212 states and 49308 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:47,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:47,440 INFO L93 Difference]: Finished difference Result 26098 states and 55136 transitions. [2022-12-14 11:27:47,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 11:27:47,441 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:27:47,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:47,478 INFO L225 Difference]: With dead ends: 26098 [2022-12-14 11:27:47,478 INFO L226 Difference]: Without dead ends: 26098 [2022-12-14 11:27:47,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 11:27:47,479 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 557 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 2954 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 2982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:47,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1149 Invalid, 2982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2954 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 11:27:47,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26098 states. [2022-12-14 11:27:47,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26098 to 23212. [2022-12-14 11:27:47,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23212 states, 23169 states have (on average 2.1282748500151065) internal successors, (49310), 23211 states have internal predecessors, (49310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:47,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23212 states to 23212 states and 49310 transitions. [2022-12-14 11:27:47,796 INFO L78 Accepts]: Start accepts. Automaton has 23212 states and 49310 transitions. Word has length 31 [2022-12-14 11:27:47,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:47,796 INFO L495 AbstractCegarLoop]: Abstraction has 23212 states and 49310 transitions. [2022-12-14 11:27:47,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:47,796 INFO L276 IsEmpty]: Start isEmpty. Operand 23212 states and 49310 transitions. [2022-12-14 11:27:47,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:27:47,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:47,800 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] [2022-12-14 11:27:47,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-12-14 11:27:47,800 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:27:47,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:47,801 INFO L85 PathProgramCache]: Analyzing trace with hash -210324895, now seen corresponding path program 15 times [2022-12-14 11:27:47,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:47,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053314290] [2022-12-14 11:27:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:47,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:48,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:27:48,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:48,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053314290] [2022-12-14 11:27:48,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053314290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:48,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:48,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:27:48,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330197045] [2022-12-14 11:27:48,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:48,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:27:48,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:48,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:27:48,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:27:48,939 INFO L87 Difference]: Start difference. First operand 23212 states and 49310 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:52,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:52,140 INFO L93 Difference]: Finished difference Result 26075 states and 55088 transitions. [2022-12-14 11:27:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 11:27:52,141 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:27:52,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:52,174 INFO L225 Difference]: With dead ends: 26075 [2022-12-14 11:27:52,174 INFO L226 Difference]: Without dead ends: 26075 [2022-12-14 11:27:52,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:27:52,174 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 590 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 4072 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 4092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:52,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 1157 Invalid, 4092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4072 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 11:27:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26075 states. [2022-12-14 11:27:52,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26075 to 22923. [2022-12-14 11:27:52,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22923 states, 22880 states have (on average 2.129326923076923) internal successors, (48719), 22922 states have internal predecessors, (48719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:52,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22923 states to 22923 states and 48719 transitions. [2022-12-14 11:27:52,452 INFO L78 Accepts]: Start accepts. Automaton has 22923 states and 48719 transitions. Word has length 31 [2022-12-14 11:27:52,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:52,452 INFO L495 AbstractCegarLoop]: Abstraction has 22923 states and 48719 transitions. [2022-12-14 11:27:52,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:52,452 INFO L276 IsEmpty]: Start isEmpty. Operand 22923 states and 48719 transitions. [2022-12-14 11:27:52,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:27:52,456 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:52,456 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] [2022-12-14 11:27:52,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-12-14 11:27:52,457 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:27:52,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:52,457 INFO L85 PathProgramCache]: Analyzing trace with hash 468187208, now seen corresponding path program 34 times [2022-12-14 11:27:52,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:52,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123028016] [2022-12-14 11:27:52,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:52,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:54,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:27:54,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:54,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123028016] [2022-12-14 11:27:54,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123028016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:54,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:54,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:27:54,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382556674] [2022-12-14 11:27:54,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:54,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:27:54,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:54,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:27:54,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:27:54,850 INFO L87 Difference]: Start difference. First operand 22923 states and 48719 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:27:56,668 INFO L93 Difference]: Finished difference Result 36075 states and 76004 transitions. [2022-12-14 11:27:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:27:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:27:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:27:56,720 INFO L225 Difference]: With dead ends: 36075 [2022-12-14 11:27:56,720 INFO L226 Difference]: Without dead ends: 36075 [2022-12-14 11:27:56,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:27:56,721 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 716 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 2697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:27:56,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 270 Invalid, 2697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:27:56,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36075 states. [2022-12-14 11:27:57,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36075 to 23022. [2022-12-14 11:27:57,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23022 states, 22979 states have (on average 2.1302058401148876) internal successors, (48950), 23021 states have internal predecessors, (48950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:57,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23022 states to 23022 states and 48950 transitions. [2022-12-14 11:27:57,061 INFO L78 Accepts]: Start accepts. Automaton has 23022 states and 48950 transitions. Word has length 31 [2022-12-14 11:27:57,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:27:57,061 INFO L495 AbstractCegarLoop]: Abstraction has 23022 states and 48950 transitions. [2022-12-14 11:27:57,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:27:57,061 INFO L276 IsEmpty]: Start isEmpty. Operand 23022 states and 48950 transitions. [2022-12-14 11:27:57,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:27:57,066 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:27:57,066 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] [2022-12-14 11:27:57,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-12-14 11:27:57,066 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:27:57,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:27:57,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1626741764, now seen corresponding path program 35 times [2022-12-14 11:27:57,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:27:57,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215257981] [2022-12-14 11:27:57,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:27:57,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:27:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:27:59,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:27:59,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:27:59,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215257981] [2022-12-14 11:27:59,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215257981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:27:59,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:27:59,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:27:59,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269173680] [2022-12-14 11:27:59,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:27:59,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:27:59,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:27:59,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:27:59,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:27:59,263 INFO L87 Difference]: Start difference. First operand 23022 states and 48950 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:01,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:28:01,090 INFO L93 Difference]: Finished difference Result 35864 states and 75633 transitions. [2022-12-14 11:28:01,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:28:01,091 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:28:01,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:28:01,142 INFO L225 Difference]: With dead ends: 35864 [2022-12-14 11:28:01,142 INFO L226 Difference]: Without dead ends: 35864 [2022-12-14 11:28:01,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:28:01,143 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 507 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 2176 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 2426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 2176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:28:01,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 275 Invalid, 2426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 2176 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:28:01,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35864 states. [2022-12-14 11:28:01,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35864 to 22794. [2022-12-14 11:28:01,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22794 states, 22751 states have (on average 2.1299283547975913) internal successors, (48458), 22793 states have internal predecessors, (48458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:01,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22794 states to 22794 states and 48458 transitions. [2022-12-14 11:28:01,481 INFO L78 Accepts]: Start accepts. Automaton has 22794 states and 48458 transitions. Word has length 31 [2022-12-14 11:28:01,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:28:01,481 INFO L495 AbstractCegarLoop]: Abstraction has 22794 states and 48458 transitions. [2022-12-14 11:28:01,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:01,482 INFO L276 IsEmpty]: Start isEmpty. Operand 22794 states and 48458 transitions. [2022-12-14 11:28:01,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:28:01,486 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:28:01,486 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] [2022-12-14 11:28:01,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-12-14 11:28:01,486 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:28:01,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:28:01,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1622920100, now seen corresponding path program 36 times [2022-12-14 11:28:01,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:28:01,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864929099] [2022-12-14 11:28:01,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:28:01,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:28:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:28:03,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:28:03,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:28:03,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864929099] [2022-12-14 11:28:03,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864929099] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:28:03,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:28:03,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:28:03,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855201961] [2022-12-14 11:28:03,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:28:03,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:28:03,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:28:03,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:28:03,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:28:03,631 INFO L87 Difference]: Start difference. First operand 22794 states and 48458 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:05,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:28:05,334 INFO L93 Difference]: Finished difference Result 36722 states and 77456 transitions. [2022-12-14 11:28:05,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:28:05,335 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:28:05,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:28:05,387 INFO L225 Difference]: With dead ends: 36722 [2022-12-14 11:28:05,387 INFO L226 Difference]: Without dead ends: 36722 [2022-12-14 11:28:05,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:28:05,387 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 666 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 2743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:28:05,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 281 Invalid, 2743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 2431 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:28:05,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36722 states. [2022-12-14 11:28:05,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36722 to 22791. [2022-12-14 11:28:05,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22791 states, 22748 states have (on average 2.1299454897133816) internal successors, (48452), 22790 states have internal predecessors, (48452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:05,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22791 states to 22791 states and 48452 transitions. [2022-12-14 11:28:05,737 INFO L78 Accepts]: Start accepts. Automaton has 22791 states and 48452 transitions. Word has length 31 [2022-12-14 11:28:05,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:28:05,737 INFO L495 AbstractCegarLoop]: Abstraction has 22791 states and 48452 transitions. [2022-12-14 11:28:05,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:05,737 INFO L276 IsEmpty]: Start isEmpty. Operand 22791 states and 48452 transitions. [2022-12-14 11:28:05,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:28:05,742 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:28:05,742 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] [2022-12-14 11:28:05,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-12-14 11:28:05,742 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:28:05,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:28:05,742 INFO L85 PathProgramCache]: Analyzing trace with hash 367994808, now seen corresponding path program 37 times [2022-12-14 11:28:05,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:28:05,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967155462] [2022-12-14 11:28:05,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:28:05,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:28:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:28:08,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:28:08,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:28:08,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967155462] [2022-12-14 11:28:08,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967155462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:28:08,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:28:08,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:28:08,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243861756] [2022-12-14 11:28:08,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:28:08,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:28:08,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:28:08,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:28:08,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:28:08,304 INFO L87 Difference]: Start difference. First operand 22791 states and 48452 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:09,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:28:09,851 INFO L93 Difference]: Finished difference Result 34679 states and 73203 transitions. [2022-12-14 11:28:09,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:28:09,852 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:28:09,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:28:09,901 INFO L225 Difference]: With dead ends: 34679 [2022-12-14 11:28:09,901 INFO L226 Difference]: Without dead ends: 34679 [2022-12-14 11:28:09,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:28:09,902 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 659 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:28:09,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 275 Invalid, 2050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:28:09,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34679 states. [2022-12-14 11:28:10,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34679 to 22515. [2022-12-14 11:28:10,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22515 states, 22472 states have (on average 2.128070487718049) internal successors, (47822), 22514 states have internal predecessors, (47822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:10,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22515 states to 22515 states and 47822 transitions. [2022-12-14 11:28:10,227 INFO L78 Accepts]: Start accepts. Automaton has 22515 states and 47822 transitions. Word has length 31 [2022-12-14 11:28:10,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:28:10,227 INFO L495 AbstractCegarLoop]: Abstraction has 22515 states and 47822 transitions. [2022-12-14 11:28:10,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:10,227 INFO L276 IsEmpty]: Start isEmpty. Operand 22515 states and 47822 transitions. [2022-12-14 11:28:10,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:28:10,232 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:28:10,232 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] [2022-12-14 11:28:10,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-12-14 11:28:10,232 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:28:10,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:28:10,232 INFO L85 PathProgramCache]: Analyzing trace with hash 17718004, now seen corresponding path program 27 times [2022-12-14 11:28:10,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:28:10,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215701944] [2022-12-14 11:28:10,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:28:10,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:28:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:28:13,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:28:13,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:28:13,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215701944] [2022-12-14 11:28:13,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215701944] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:28:13,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:28:13,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:28:13,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729509794] [2022-12-14 11:28:13,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:28:13,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:28:13,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:28:13,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:28:13,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:28:13,562 INFO L87 Difference]: Start difference. First operand 22515 states and 47822 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:18,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:28:18,859 INFO L93 Difference]: Finished difference Result 25911 states and 54681 transitions. [2022-12-14 11:28:18,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 11:28:18,860 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:28:18,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:28:18,893 INFO L225 Difference]: With dead ends: 25911 [2022-12-14 11:28:18,893 INFO L226 Difference]: Without dead ends: 25911 [2022-12-14 11:28:18,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=438, Invalid=2012, Unknown=0, NotChecked=0, Total=2450 [2022-12-14 11:28:18,894 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 509 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 4669 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 5135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 4669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:28:18,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 428 Invalid, 5135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 4669 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 11:28:18,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25911 states. [2022-12-14 11:28:19,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25911 to 22552. [2022-12-14 11:28:19,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22552 states, 22509 states have (on average 2.1279043937980364) internal successors, (47897), 22551 states have internal predecessors, (47897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22552 states to 22552 states and 47897 transitions. [2022-12-14 11:28:19,177 INFO L78 Accepts]: Start accepts. Automaton has 22552 states and 47897 transitions. Word has length 31 [2022-12-14 11:28:19,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:28:19,177 INFO L495 AbstractCegarLoop]: Abstraction has 22552 states and 47897 transitions. [2022-12-14 11:28:19,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:19,178 INFO L276 IsEmpty]: Start isEmpty. Operand 22552 states and 47897 transitions. [2022-12-14 11:28:19,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:28:19,182 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:28:19,182 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] [2022-12-14 11:28:19,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-12-14 11:28:19,182 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:28:19,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:28:19,182 INFO L85 PathProgramCache]: Analyzing trace with hash -2086440340, now seen corresponding path program 28 times [2022-12-14 11:28:19,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:28:19,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339846225] [2022-12-14 11:28:19,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:28:19,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:28:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:28:22,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:28:22,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:28:22,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339846225] [2022-12-14 11:28:22,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339846225] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:28:22,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:28:22,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:28:22,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374087729] [2022-12-14 11:28:22,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:28:22,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:28:22,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:28:22,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:28:22,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:28:22,415 INFO L87 Difference]: Start difference. First operand 22552 states and 47897 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:27,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:28:27,736 INFO L93 Difference]: Finished difference Result 27279 states and 57477 transitions. [2022-12-14 11:28:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-14 11:28:27,736 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:28:27,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:28:27,771 INFO L225 Difference]: With dead ends: 27279 [2022-12-14 11:28:27,771 INFO L226 Difference]: Without dead ends: 27279 [2022-12-14 11:28:27,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=456, Invalid=2094, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 11:28:27,772 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 486 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 4949 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 5381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 4949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:28:27,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 446 Invalid, 5381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 4949 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 11:28:27,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27279 states. [2022-12-14 11:28:28,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27279 to 22552. [2022-12-14 11:28:28,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22552 states, 22509 states have (on average 2.1279043937980364) internal successors, (47897), 22551 states have internal predecessors, (47897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:28,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22552 states to 22552 states and 47897 transitions. [2022-12-14 11:28:28,054 INFO L78 Accepts]: Start accepts. Automaton has 22552 states and 47897 transitions. Word has length 31 [2022-12-14 11:28:28,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:28:28,054 INFO L495 AbstractCegarLoop]: Abstraction has 22552 states and 47897 transitions. [2022-12-14 11:28:28,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:28,055 INFO L276 IsEmpty]: Start isEmpty. Operand 22552 states and 47897 transitions. [2022-12-14 11:28:28,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:28:28,059 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:28:28,059 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] [2022-12-14 11:28:28,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-12-14 11:28:28,059 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:28:28,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:28:28,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1796747976, now seen corresponding path program 29 times [2022-12-14 11:28:28,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:28:28,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377283151] [2022-12-14 11:28:28,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:28:28,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:28:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:28:30,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:28:30,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:28:30,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377283151] [2022-12-14 11:28:30,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377283151] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:28:30,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:28:30,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:28:30,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765780507] [2022-12-14 11:28:30,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:28:30,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:28:30,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:28:30,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:28:30,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:28:30,286 INFO L87 Difference]: Start difference. First operand 22552 states and 47897 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:34,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:28:34,846 INFO L93 Difference]: Finished difference Result 32108 states and 67650 transitions. [2022-12-14 11:28:34,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 11:28:34,847 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:28:34,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:28:34,893 INFO L225 Difference]: With dead ends: 32108 [2022-12-14 11:28:34,893 INFO L226 Difference]: Without dead ends: 32108 [2022-12-14 11:28:34,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=390, Invalid=1502, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 11:28:34,894 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 904 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 3661 mSolverCounterSat, 714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 4375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 714 IncrementalHoareTripleChecker+Valid, 3661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:28:34,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 314 Invalid, 4375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [714 Valid, 3661 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 11:28:34,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32108 states. [2022-12-14 11:28:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32108 to 24789. [2022-12-14 11:28:35,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24789 states, 24746 states have (on average 2.1295158813545623) internal successors, (52697), 24788 states have internal predecessors, (52697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:35,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24789 states to 24789 states and 52697 transitions. [2022-12-14 11:28:35,238 INFO L78 Accepts]: Start accepts. Automaton has 24789 states and 52697 transitions. Word has length 31 [2022-12-14 11:28:35,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:28:35,238 INFO L495 AbstractCegarLoop]: Abstraction has 24789 states and 52697 transitions. [2022-12-14 11:28:35,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:35,238 INFO L276 IsEmpty]: Start isEmpty. Operand 24789 states and 52697 transitions. [2022-12-14 11:28:35,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:28:35,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:28:35,243 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] [2022-12-14 11:28:35,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-12-14 11:28:35,243 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:28:35,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:28:35,244 INFO L85 PathProgramCache]: Analyzing trace with hash 63251874, now seen corresponding path program 30 times [2022-12-14 11:28:35,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:28:35,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584008574] [2022-12-14 11:28:35,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:28:35,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:28:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:28:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:28:37,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:28:37,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584008574] [2022-12-14 11:28:37,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584008574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:28:37,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:28:37,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:28:37,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660969683] [2022-12-14 11:28:37,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:28:37,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:28:37,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:28:37,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:28:37,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:28:37,970 INFO L87 Difference]: Start difference. First operand 24789 states and 52697 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:46,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:28:46,601 INFO L93 Difference]: Finished difference Result 29665 states and 62561 transitions. [2022-12-14 11:28:46,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-12-14 11:28:46,602 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:28:46,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:28:46,640 INFO L225 Difference]: With dead ends: 29665 [2022-12-14 11:28:46,640 INFO L226 Difference]: Without dead ends: 29665 [2022-12-14 11:28:46,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1538 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=911, Invalid=4639, Unknown=0, NotChecked=0, Total=5550 [2022-12-14 11:28:46,640 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 677 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 7611 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 8201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 7611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:28:46,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 379 Invalid, 8201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 7611 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 11:28:46,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29665 states. [2022-12-14 11:28:46,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29665 to 24789. [2022-12-14 11:28:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24789 states, 24746 states have (on average 2.1295158813545623) internal successors, (52697), 24788 states have internal predecessors, (52697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:46,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24789 states to 24789 states and 52697 transitions. [2022-12-14 11:28:46,972 INFO L78 Accepts]: Start accepts. Automaton has 24789 states and 52697 transitions. Word has length 31 [2022-12-14 11:28:46,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:28:46,972 INFO L495 AbstractCegarLoop]: Abstraction has 24789 states and 52697 transitions. [2022-12-14 11:28:46,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:46,972 INFO L276 IsEmpty]: Start isEmpty. Operand 24789 states and 52697 transitions. [2022-12-14 11:28:46,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:28:46,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:28:46,977 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] [2022-12-14 11:28:46,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-12-14 11:28:46,978 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:28:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:28:46,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1495643444, now seen corresponding path program 31 times [2022-12-14 11:28:46,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:28:46,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861337506] [2022-12-14 11:28:46,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:28:46,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:28:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:28:49,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:28:49,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:28:49,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861337506] [2022-12-14 11:28:49,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861337506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:28:49,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:28:49,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:28:49,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984901912] [2022-12-14 11:28:49,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:28:49,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:28:49,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:28:49,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:28:49,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:28:49,330 INFO L87 Difference]: Start difference. First operand 24789 states and 52697 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:56,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:28:56,503 INFO L93 Difference]: Finished difference Result 28574 states and 60350 transitions. [2022-12-14 11:28:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-14 11:28:56,504 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:28:56,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:28:56,541 INFO L225 Difference]: With dead ends: 28574 [2022-12-14 11:28:56,541 INFO L226 Difference]: Without dead ends: 28574 [2022-12-14 11:28:56,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1530 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=967, Invalid=4733, Unknown=0, NotChecked=0, Total=5700 [2022-12-14 11:28:56,542 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 662 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 5376 mSolverCounterSat, 738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 6114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 5376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:28:56,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 429 Invalid, 6114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [738 Valid, 5376 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 11:28:56,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28574 states. [2022-12-14 11:28:56,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28574 to 24797. [2022-12-14 11:28:56,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24797 states, 24754 states have (on average 2.129474024400097) internal successors, (52713), 24796 states have internal predecessors, (52713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:56,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24797 states to 24797 states and 52713 transitions. [2022-12-14 11:28:56,851 INFO L78 Accepts]: Start accepts. Automaton has 24797 states and 52713 transitions. Word has length 31 [2022-12-14 11:28:56,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:28:56,851 INFO L495 AbstractCegarLoop]: Abstraction has 24797 states and 52713 transitions. [2022-12-14 11:28:56,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:28:56,851 INFO L276 IsEmpty]: Start isEmpty. Operand 24797 states and 52713 transitions. [2022-12-14 11:28:56,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:28:56,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:28:56,856 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] [2022-12-14 11:28:56,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-12-14 11:28:56,856 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:28:56,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:28:56,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1849118424, now seen corresponding path program 32 times [2022-12-14 11:28:56,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:28:56,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591824280] [2022-12-14 11:28:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:28:56,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:28:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:29:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:29:00,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:29:00,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591824280] [2022-12-14 11:29:00,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591824280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:29:00,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:29:00,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:29:00,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802821755] [2022-12-14 11:29:00,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:29:00,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:29:00,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:29:00,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:29:00,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:29:00,147 INFO L87 Difference]: Start difference. First operand 24797 states and 52713 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:06,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:29:06,312 INFO L93 Difference]: Finished difference Result 29741 states and 62724 transitions. [2022-12-14 11:29:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-14 11:29:06,312 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:29:06,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:29:06,347 INFO L225 Difference]: With dead ends: 29741 [2022-12-14 11:29:06,348 INFO L226 Difference]: Without dead ends: 29741 [2022-12-14 11:29:06,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 11:29:06,348 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 651 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 5706 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 6319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 5706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:29:06,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 378 Invalid, 6319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 5706 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 11:29:06,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29741 states. [2022-12-14 11:29:06,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29741 to 24820. [2022-12-14 11:29:06,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24820 states, 24777 states have (on average 2.129111676151269) internal successors, (52753), 24819 states have internal predecessors, (52753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:06,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24820 states to 24820 states and 52753 transitions. [2022-12-14 11:29:06,663 INFO L78 Accepts]: Start accepts. Automaton has 24820 states and 52753 transitions. Word has length 31 [2022-12-14 11:29:06,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:29:06,663 INFO L495 AbstractCegarLoop]: Abstraction has 24820 states and 52753 transitions. [2022-12-14 11:29:06,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 24820 states and 52753 transitions. [2022-12-14 11:29:06,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:29:06,668 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:29:06,668 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] [2022-12-14 11:29:06,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-12-14 11:29:06,668 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:29:06,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:29:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash -18362052, now seen corresponding path program 33 times [2022-12-14 11:29:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:29:06,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281451775] [2022-12-14 11:29:06,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:29:06,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:29:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:29:08,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:29:08,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:29:08,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281451775] [2022-12-14 11:29:08,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281451775] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:29:08,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:29:08,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:29:08,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474848563] [2022-12-14 11:29:08,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:29:08,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:29:08,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:29:08,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:29:08,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:29:08,860 INFO L87 Difference]: Start difference. First operand 24820 states and 52753 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:13,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:29:13,773 INFO L93 Difference]: Finished difference Result 31600 states and 66548 transitions. [2022-12-14 11:29:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-14 11:29:13,774 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:29:13,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:29:13,815 INFO L225 Difference]: With dead ends: 31600 [2022-12-14 11:29:13,815 INFO L226 Difference]: Without dead ends: 31600 [2022-12-14 11:29:13,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=411, Invalid=1481, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 11:29:13,815 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 824 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 3779 mSolverCounterSat, 763 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 4542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 763 IncrementalHoareTripleChecker+Valid, 3779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:29:13,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 434 Invalid, 4542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [763 Valid, 3779 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 11:29:13,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31600 states. [2022-12-14 11:29:14,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31600 to 24786. [2022-12-14 11:29:14,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24786 states, 24743 states have (on average 2.1291678454512386) internal successors, (52682), 24785 states have internal predecessors, (52682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24786 states to 24786 states and 52682 transitions. [2022-12-14 11:29:14,148 INFO L78 Accepts]: Start accepts. Automaton has 24786 states and 52682 transitions. Word has length 31 [2022-12-14 11:29:14,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:29:14,148 INFO L495 AbstractCegarLoop]: Abstraction has 24786 states and 52682 transitions. [2022-12-14 11:29:14,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:14,148 INFO L276 IsEmpty]: Start isEmpty. Operand 24786 states and 52682 transitions. [2022-12-14 11:29:14,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:29:14,153 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:29:14,153 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] [2022-12-14 11:29:14,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-12-14 11:29:14,153 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:29:14,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:29:14,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2122520396, now seen corresponding path program 34 times [2022-12-14 11:29:14,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:29:14,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618042195] [2022-12-14 11:29:14,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:29:14,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:29:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:29:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:29:16,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:29:16,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618042195] [2022-12-14 11:29:16,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618042195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:29:16,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:29:16,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:29:16,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474623282] [2022-12-14 11:29:16,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:29:16,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:29:16,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:29:16,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:29:16,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:29:16,991 INFO L87 Difference]: Start difference. First operand 24786 states and 52682 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:24,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:29:24,059 INFO L93 Difference]: Finished difference Result 29358 states and 61916 transitions. [2022-12-14 11:29:24,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-14 11:29:24,060 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:29:24,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:29:24,097 INFO L225 Difference]: With dead ends: 29358 [2022-12-14 11:29:24,097 INFO L226 Difference]: Without dead ends: 29358 [2022-12-14 11:29:24,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=600, Invalid=3060, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 11:29:24,098 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 659 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 6499 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 7027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 6499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:29:24,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 377 Invalid, 7027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 6499 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 11:29:24,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29358 states. [2022-12-14 11:29:24,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29358 to 24978. [2022-12-14 11:29:24,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24978 states, 24935 states have (on average 2.1284138760778024) internal successors, (53072), 24977 states have internal predecessors, (53072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24978 states to 24978 states and 53072 transitions. [2022-12-14 11:29:24,413 INFO L78 Accepts]: Start accepts. Automaton has 24978 states and 53072 transitions. Word has length 31 [2022-12-14 11:29:24,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:29:24,413 INFO L495 AbstractCegarLoop]: Abstraction has 24978 states and 53072 transitions. [2022-12-14 11:29:24,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:24,413 INFO L276 IsEmpty]: Start isEmpty. Operand 24978 states and 53072 transitions. [2022-12-14 11:29:24,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:29:24,418 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:29:24,418 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] [2022-12-14 11:29:24,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-12-14 11:29:24,418 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:29:24,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:29:24,419 INFO L85 PathProgramCache]: Analyzing trace with hash -262520546, now seen corresponding path program 35 times [2022-12-14 11:29:24,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:29:24,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475054687] [2022-12-14 11:29:24,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:29:24,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:29:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:29:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:29:27,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:29:27,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475054687] [2022-12-14 11:29:27,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475054687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:29:27,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:29:27,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-12-14 11:29:27,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669357082] [2022-12-14 11:29:27,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:29:27,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-14 11:29:27,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:29:27,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-14 11:29:27,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:29:27,227 INFO L87 Difference]: Start difference. First operand 24978 states and 53072 transitions. Second operand has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:33,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:29:33,872 INFO L93 Difference]: Finished difference Result 28671 states and 60546 transitions. [2022-12-14 11:29:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-14 11:29:33,872 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:29:33,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:29:33,908 INFO L225 Difference]: With dead ends: 28671 [2022-12-14 11:29:33,908 INFO L226 Difference]: Without dead ends: 28671 [2022-12-14 11:29:33,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 717 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=603, Invalid=2703, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 11:29:33,909 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 514 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 5745 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 6155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 5745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:29:33,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 362 Invalid, 6155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 5745 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 11:29:33,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28671 states. [2022-12-14 11:29:34,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28671 to 25014. [2022-12-14 11:29:34,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25014 states, 24971 states have (on average 2.128268791798486) internal successors, (53145), 25013 states have internal predecessors, (53145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:34,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25014 states to 25014 states and 53145 transitions. [2022-12-14 11:29:34,218 INFO L78 Accepts]: Start accepts. Automaton has 25014 states and 53145 transitions. Word has length 31 [2022-12-14 11:29:34,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:29:34,218 INFO L495 AbstractCegarLoop]: Abstraction has 25014 states and 53145 transitions. [2022-12-14 11:29:34,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:34,218 INFO L276 IsEmpty]: Start isEmpty. Operand 25014 states and 53145 transitions. [2022-12-14 11:29:34,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:29:34,223 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:29:34,223 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] [2022-12-14 11:29:34,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-12-14 11:29:34,223 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:29:34,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:29:34,223 INFO L85 PathProgramCache]: Analyzing trace with hash 27171818, now seen corresponding path program 36 times [2022-12-14 11:29:34,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:29:34,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776718129] [2022-12-14 11:29:34,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:29:34,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:29:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:29:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:29:36,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:29:36,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776718129] [2022-12-14 11:29:36,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776718129] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:29:36,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:29:36,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:29:36,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037409490] [2022-12-14 11:29:36,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:29:36,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:29:36,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:29:36,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:29:36,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:29:36,115 INFO L87 Difference]: Start difference. First operand 25014 states and 53145 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:40,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:29:40,842 INFO L93 Difference]: Finished difference Result 32179 states and 67725 transitions. [2022-12-14 11:29:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-14 11:29:40,843 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:29:40,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:29:40,886 INFO L225 Difference]: With dead ends: 32179 [2022-12-14 11:29:40,886 INFO L226 Difference]: Without dead ends: 32179 [2022-12-14 11:29:40,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=2034, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 11:29:40,887 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 963 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 3896 mSolverCounterSat, 945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 4841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Valid, 3896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:29:40,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 438 Invalid, 4841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [945 Valid, 3896 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 11:29:40,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32179 states. [2022-12-14 11:29:41,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32179 to 24158. [2022-12-14 11:29:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24158 states, 24115 states have (on average 2.1272237196765498) internal successors, (51298), 24157 states have internal predecessors, (51298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:41,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24158 states to 24158 states and 51298 transitions. [2022-12-14 11:29:41,227 INFO L78 Accepts]: Start accepts. Automaton has 24158 states and 51298 transitions. Word has length 31 [2022-12-14 11:29:41,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:29:41,227 INFO L495 AbstractCegarLoop]: Abstraction has 24158 states and 51298 transitions. [2022-12-14 11:29:41,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:41,227 INFO L276 IsEmpty]: Start isEmpty. Operand 24158 states and 51298 transitions. [2022-12-14 11:29:41,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:29:41,232 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:29:41,232 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] [2022-12-14 11:29:41,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-12-14 11:29:41,232 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:29:41,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:29:41,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1459563388, now seen corresponding path program 37 times [2022-12-14 11:29:41,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:29:41,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734441367] [2022-12-14 11:29:41,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:29:41,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:29:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:29:43,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:29:43,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:29:43,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734441367] [2022-12-14 11:29:43,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734441367] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:29:43,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:29:43,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:29:43,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116932022] [2022-12-14 11:29:43,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:29:43,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:29:43,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:29:43,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:29:43,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:29:43,629 INFO L87 Difference]: Start difference. First operand 24158 states and 51298 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:52,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:29:52,118 INFO L93 Difference]: Finished difference Result 28235 states and 59552 transitions. [2022-12-14 11:29:52,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-12-14 11:29:52,118 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:29:52,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:29:52,152 INFO L225 Difference]: With dead ends: 28235 [2022-12-14 11:29:52,153 INFO L226 Difference]: Without dead ends: 28235 [2022-12-14 11:29:52,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1715 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1067, Invalid=5253, Unknown=0, NotChecked=0, Total=6320 [2022-12-14 11:29:52,153 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 684 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 6491 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 7128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 6491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:29:52,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 363 Invalid, 7128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 6491 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 11:29:52,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28235 states. [2022-12-14 11:29:52,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28235 to 24189. [2022-12-14 11:29:52,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24189 states, 24146 states have (on average 2.1271017973991553) internal successors, (51361), 24188 states have internal predecessors, (51361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:52,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24189 states to 24189 states and 51361 transitions. [2022-12-14 11:29:52,464 INFO L78 Accepts]: Start accepts. Automaton has 24189 states and 51361 transitions. Word has length 31 [2022-12-14 11:29:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:29:52,465 INFO L495 AbstractCegarLoop]: Abstraction has 24189 states and 51361 transitions. [2022-12-14 11:29:52,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:29:52,465 INFO L276 IsEmpty]: Start isEmpty. Operand 24189 states and 51361 transitions. [2022-12-14 11:29:52,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:29:52,469 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:29:52,470 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] [2022-12-14 11:29:52,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-12-14 11:29:52,470 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:29:52,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:29:52,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1885198480, now seen corresponding path program 38 times [2022-12-14 11:29:52,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:29:52,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659266179] [2022-12-14 11:29:52,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:29:52,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:29:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:29:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:29:55,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:29:55,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659266179] [2022-12-14 11:29:55,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659266179] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:29:55,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:29:55,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:29:55,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78574701] [2022-12-14 11:29:55,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:29:55,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:29:55,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:29:55,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:29:55,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:29:55,899 INFO L87 Difference]: Start difference. First operand 24189 states and 51361 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:02,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:02,482 INFO L93 Difference]: Finished difference Result 29162 states and 61433 transitions. [2022-12-14 11:30:02,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-14 11:30:02,482 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:02,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:02,519 INFO L225 Difference]: With dead ends: 29162 [2022-12-14 11:30:02,519 INFO L226 Difference]: Without dead ends: 29162 [2022-12-14 11:30:02,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=507, Invalid=2463, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 11:30:02,519 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 559 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 5621 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 6109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 5621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:02,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 379 Invalid, 6109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 5621 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 11:30:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29162 states. [2022-12-14 11:30:02,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29162 to 24227. [2022-12-14 11:30:02,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24227 states, 24184 states have (on average 2.126943433675157) internal successors, (51438), 24226 states have internal predecessors, (51438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:02,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24227 states to 24227 states and 51438 transitions. [2022-12-14 11:30:02,814 INFO L78 Accepts]: Start accepts. Automaton has 24227 states and 51438 transitions. Word has length 31 [2022-12-14 11:30:02,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:02,814 INFO L495 AbstractCegarLoop]: Abstraction has 24227 states and 51438 transitions. [2022-12-14 11:30:02,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:02,814 INFO L276 IsEmpty]: Start isEmpty. Operand 24227 states and 51438 transitions. [2022-12-14 11:30:02,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:02,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:02,819 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] [2022-12-14 11:30:02,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-12-14 11:30:02,819 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:02,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1506650990, now seen corresponding path program 39 times [2022-12-14 11:30:02,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:02,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123204111] [2022-12-14 11:30:02,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:02,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:03,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:03,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:03,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123204111] [2022-12-14 11:30:03,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123204111] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:03,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:03,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:03,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027458879] [2022-12-14 11:30:03,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:03,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:03,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:03,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:03,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:03,627 INFO L87 Difference]: Start difference. First operand 24227 states and 51438 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:08,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:08,015 INFO L93 Difference]: Finished difference Result 30297 states and 63785 transitions. [2022-12-14 11:30:08,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-14 11:30:08,015 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:08,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:08,056 INFO L225 Difference]: With dead ends: 30297 [2022-12-14 11:30:08,056 INFO L226 Difference]: Without dead ends: 30297 [2022-12-14 11:30:08,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=541, Invalid=2111, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 11:30:08,056 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 864 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 3679 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 3679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:08,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 1431 Invalid, 4060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 3679 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:30:08,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30297 states. [2022-12-14 11:30:08,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30297 to 24308. [2022-12-14 11:30:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24308 states, 24265 states have (on average 2.126643313414383) internal successors, (51603), 24307 states have internal predecessors, (51603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24308 states to 24308 states and 51603 transitions. [2022-12-14 11:30:08,410 INFO L78 Accepts]: Start accepts. Automaton has 24308 states and 51603 transitions. Word has length 31 [2022-12-14 11:30:08,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:08,410 INFO L495 AbstractCegarLoop]: Abstraction has 24308 states and 51603 transitions. [2022-12-14 11:30:08,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 24308 states and 51603 transitions. [2022-12-14 11:30:08,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:08,414 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:08,414 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] [2022-12-14 11:30:08,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-12-14 11:30:08,414 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:08,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:08,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1178521341, now seen corresponding path program 16 times [2022-12-14 11:30:08,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:08,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36944062] [2022-12-14 11:30:08,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:08,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:09,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:09,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36944062] [2022-12-14 11:30:09,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36944062] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:09,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:09,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:09,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741312383] [2022-12-14 11:30:09,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:09,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:09,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:09,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:09,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:09,591 INFO L87 Difference]: Start difference. First operand 24308 states and 51603 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:12,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:12,445 INFO L93 Difference]: Finished difference Result 27796 states and 58683 transitions. [2022-12-14 11:30:12,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 11:30:12,446 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:12,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:12,484 INFO L225 Difference]: With dead ends: 27796 [2022-12-14 11:30:12,484 INFO L226 Difference]: Without dead ends: 27796 [2022-12-14 11:30:12,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:30:12,484 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 440 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:12,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 1265 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 11:30:12,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27796 states. [2022-12-14 11:30:12,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27796 to 24308. [2022-12-14 11:30:12,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24308 states, 24265 states have (on average 2.1267257366577375) internal successors, (51605), 24307 states have internal predecessors, (51605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:12,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24308 states to 24308 states and 51605 transitions. [2022-12-14 11:30:12,794 INFO L78 Accepts]: Start accepts. Automaton has 24308 states and 51605 transitions. Word has length 31 [2022-12-14 11:30:12,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:12,794 INFO L495 AbstractCegarLoop]: Abstraction has 24308 states and 51605 transitions. [2022-12-14 11:30:12,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:12,794 INFO L276 IsEmpty]: Start isEmpty. Operand 24308 states and 51605 transitions. [2022-12-14 11:30:12,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:12,799 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:12,799 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] [2022-12-14 11:30:12,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-12-14 11:30:12,799 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:12,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:12,799 INFO L85 PathProgramCache]: Analyzing trace with hash -731977837, now seen corresponding path program 17 times [2022-12-14 11:30:12,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:12,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976958770] [2022-12-14 11:30:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:12,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:13,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:13,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:13,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976958770] [2022-12-14 11:30:13,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976958770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:13,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:13,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:30:13,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036848267] [2022-12-14 11:30:13,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:13,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 11:30:13,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:13,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 11:30:13,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:30:13,806 INFO L87 Difference]: Start difference. First operand 24308 states and 51605 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:15,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:15,847 INFO L93 Difference]: Finished difference Result 26848 states and 56830 transitions. [2022-12-14 11:30:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 11:30:15,848 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:15,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:15,882 INFO L225 Difference]: With dead ends: 26848 [2022-12-14 11:30:15,882 INFO L226 Difference]: Without dead ends: 26848 [2022-12-14 11:30:15,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:30:15,882 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 344 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 2852 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 2861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:15,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 821 Invalid, 2861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2852 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 11:30:15,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26848 states. [2022-12-14 11:30:16,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26848 to 24314. [2022-12-14 11:30:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24314 states, 24271 states have (on average 2.1269416175682916) internal successors, (51623), 24313 states have internal predecessors, (51623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:16,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24314 states to 24314 states and 51623 transitions. [2022-12-14 11:30:16,311 INFO L78 Accepts]: Start accepts. Automaton has 24314 states and 51623 transitions. Word has length 31 [2022-12-14 11:30:16,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:16,311 INFO L495 AbstractCegarLoop]: Abstraction has 24314 states and 51623 transitions. [2022-12-14 11:30:16,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:16,311 INFO L276 IsEmpty]: Start isEmpty. Operand 24314 states and 51623 transitions. [2022-12-14 11:30:16,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:16,318 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:16,318 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] [2022-12-14 11:30:16,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-12-14 11:30:16,318 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:16,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:16,319 INFO L85 PathProgramCache]: Analyzing trace with hash -992053267, now seen corresponding path program 18 times [2022-12-14 11:30:16,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:16,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97902802] [2022-12-14 11:30:16,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:16,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:17,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:17,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:17,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97902802] [2022-12-14 11:30:17,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97902802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:17,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:17,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:17,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710180442] [2022-12-14 11:30:17,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:17,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:17,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:17,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:17,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:17,260 INFO L87 Difference]: Start difference. First operand 24314 states and 51623 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:20,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:20,504 INFO L93 Difference]: Finished difference Result 27767 states and 58627 transitions. [2022-12-14 11:30:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 11:30:20,505 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:20,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:20,542 INFO L225 Difference]: With dead ends: 27767 [2022-12-14 11:30:20,542 INFO L226 Difference]: Without dead ends: 27767 [2022-12-14 11:30:20,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:30:20,542 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 496 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 3955 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 3977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:20,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1275 Invalid, 3977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3955 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 11:30:20,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27767 states. [2022-12-14 11:30:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27767 to 23878. [2022-12-14 11:30:20,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23878 states, 23835 states have (on average 2.1279630795049296) internal successors, (50720), 23877 states have internal predecessors, (50720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:20,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23878 states to 23878 states and 50720 transitions. [2022-12-14 11:30:20,829 INFO L78 Accepts]: Start accepts. Automaton has 23878 states and 50720 transitions. Word has length 31 [2022-12-14 11:30:20,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:20,829 INFO L495 AbstractCegarLoop]: Abstraction has 23878 states and 50720 transitions. [2022-12-14 11:30:20,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:20,829 INFO L276 IsEmpty]: Start isEmpty. Operand 23878 states and 50720 transitions. [2022-12-14 11:30:20,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:20,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:20,834 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] [2022-12-14 11:30:20,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-12-14 11:30:20,834 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:20,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:20,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1784071487, now seen corresponding path program 19 times [2022-12-14 11:30:20,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:20,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475531161] [2022-12-14 11:30:20,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:20,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:22,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:22,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:22,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475531161] [2022-12-14 11:30:22,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475531161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:22,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:22,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:30:22,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654688927] [2022-12-14 11:30:22,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:22,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 11:30:22,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:22,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 11:30:22,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:30:22,029 INFO L87 Difference]: Start difference. First operand 23878 states and 50720 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:23,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:23,971 INFO L93 Difference]: Finished difference Result 27734 states and 58697 transitions. [2022-12-14 11:30:23,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 11:30:23,972 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:23,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:24,006 INFO L225 Difference]: With dead ends: 27734 [2022-12-14 11:30:24,006 INFO L226 Difference]: Without dead ends: 27734 [2022-12-14 11:30:24,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2022-12-14 11:30:24,006 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 429 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 2701 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 2717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:24,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 861 Invalid, 2717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2701 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:30:24,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27734 states. [2022-12-14 11:30:24,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27734 to 23892. [2022-12-14 11:30:24,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23892 states, 23849 states have (on average 2.127887961759403) internal successors, (50748), 23891 states have internal predecessors, (50748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:24,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23892 states to 23892 states and 50748 transitions. [2022-12-14 11:30:24,312 INFO L78 Accepts]: Start accepts. Automaton has 23892 states and 50748 transitions. Word has length 31 [2022-12-14 11:30:24,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:24,312 INFO L495 AbstractCegarLoop]: Abstraction has 23892 states and 50748 transitions. [2022-12-14 11:30:24,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:24,313 INFO L276 IsEmpty]: Start isEmpty. Operand 23892 states and 50748 transitions. [2022-12-14 11:30:24,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:24,317 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:24,317 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] [2022-12-14 11:30:24,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-12-14 11:30:24,317 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:24,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:24,317 INFO L85 PathProgramCache]: Analyzing trace with hash -677952600, now seen corresponding path program 40 times [2022-12-14 11:30:24,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:24,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310915937] [2022-12-14 11:30:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:24,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:25,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:25,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:25,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310915937] [2022-12-14 11:30:25,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310915937] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:25,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:25,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:25,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453248683] [2022-12-14 11:30:25,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:25,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:25,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:25,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:25,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:25,198 INFO L87 Difference]: Start difference. First operand 23892 states and 50748 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:29,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:29,427 INFO L93 Difference]: Finished difference Result 32473 states and 68461 transitions. [2022-12-14 11:30:29,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 11:30:29,428 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:29,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:29,472 INFO L225 Difference]: With dead ends: 32473 [2022-12-14 11:30:29,472 INFO L226 Difference]: Without dead ends: 32473 [2022-12-14 11:30:29,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=744, Invalid=3162, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 11:30:29,472 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 991 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 3884 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 4184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 3884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:29,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 1463 Invalid, 4184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 3884 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 11:30:29,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32473 states. [2022-12-14 11:30:29,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32473 to 24997. [2022-12-14 11:30:29,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24997 states, 24954 states have (on average 2.1273142582351525) internal successors, (53085), 24996 states have internal predecessors, (53085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24997 states to 24997 states and 53085 transitions. [2022-12-14 11:30:29,887 INFO L78 Accepts]: Start accepts. Automaton has 24997 states and 53085 transitions. Word has length 31 [2022-12-14 11:30:29,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:29,887 INFO L495 AbstractCegarLoop]: Abstraction has 24997 states and 53085 transitions. [2022-12-14 11:30:29,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:29,888 INFO L276 IsEmpty]: Start isEmpty. Operand 24997 states and 53085 transitions. [2022-12-14 11:30:29,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:29,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:29,893 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] [2022-12-14 11:30:29,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-12-14 11:30:29,893 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:29,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2007219731, now seen corresponding path program 20 times [2022-12-14 11:30:29,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:29,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909202755] [2022-12-14 11:30:29,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:29,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:30,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:30,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:30,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909202755] [2022-12-14 11:30:30,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909202755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:30,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:30,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:30,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99998916] [2022-12-14 11:30:30,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:30,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:30,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:30,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:30,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:30,984 INFO L87 Difference]: Start difference. First operand 24997 states and 53085 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:33,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:33,054 INFO L93 Difference]: Finished difference Result 31029 states and 65576 transitions. [2022-12-14 11:30:33,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 11:30:33,054 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:33,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:33,098 INFO L225 Difference]: With dead ends: 31029 [2022-12-14 11:30:33,098 INFO L226 Difference]: Without dead ends: 31029 [2022-12-14 11:30:33,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=291, Invalid=1041, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 11:30:33,098 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 522 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:33,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1435 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:30:33,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31029 states. [2022-12-14 11:30:33,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31029 to 25168. [2022-12-14 11:30:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25168 states, 25125 states have (on average 2.126805970149254) internal successors, (53436), 25167 states have internal predecessors, (53436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25168 states to 25168 states and 53436 transitions. [2022-12-14 11:30:33,530 INFO L78 Accepts]: Start accepts. Automaton has 25168 states and 53436 transitions. Word has length 31 [2022-12-14 11:30:33,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:33,530 INFO L495 AbstractCegarLoop]: Abstraction has 25168 states and 53436 transitions. [2022-12-14 11:30:33,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:33,530 INFO L276 IsEmpty]: Start isEmpty. Operand 25168 states and 53436 transitions. [2022-12-14 11:30:33,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:33,534 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:33,534 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] [2022-12-14 11:30:33,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-12-14 11:30:33,534 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:33,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:33,534 INFO L85 PathProgramCache]: Analyzing trace with hash 96720553, now seen corresponding path program 21 times [2022-12-14 11:30:33,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:33,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719898487] [2022-12-14 11:30:33,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:33,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:34,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:34,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719898487] [2022-12-14 11:30:34,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719898487] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:34,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:34,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:34,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719921717] [2022-12-14 11:30:34,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:34,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:34,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:34,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:34,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:34,693 INFO L87 Difference]: Start difference. First operand 25168 states and 53436 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:37,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:37,766 INFO L93 Difference]: Finished difference Result 31017 states and 65552 transitions. [2022-12-14 11:30:37,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 11:30:37,766 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:37,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:37,811 INFO L225 Difference]: With dead ends: 31017 [2022-12-14 11:30:37,811 INFO L226 Difference]: Without dead ends: 31017 [2022-12-14 11:30:37,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 11:30:37,812 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 620 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 3209 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 3237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:37,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 1319 Invalid, 3237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3209 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 11:30:37,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31017 states. [2022-12-14 11:30:38,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31017 to 25171. [2022-12-14 11:30:38,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25171 states, 25128 states have (on average 2.126870423432028) internal successors, (53444), 25170 states have internal predecessors, (53444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:38,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25171 states to 25171 states and 53444 transitions. [2022-12-14 11:30:38,189 INFO L78 Accepts]: Start accepts. Automaton has 25171 states and 53444 transitions. Word has length 31 [2022-12-14 11:30:38,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:38,189 INFO L495 AbstractCegarLoop]: Abstraction has 25171 states and 53444 transitions. [2022-12-14 11:30:38,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:38,189 INFO L276 IsEmpty]: Start isEmpty. Operand 25171 states and 53444 transitions. [2022-12-14 11:30:38,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:38,194 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:38,194 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] [2022-12-14 11:30:38,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-12-14 11:30:38,194 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:38,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:38,194 INFO L85 PathProgramCache]: Analyzing trace with hash -163354877, now seen corresponding path program 22 times [2022-12-14 11:30:38,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:38,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203149640] [2022-12-14 11:30:38,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:38,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:39,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:39,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203149640] [2022-12-14 11:30:39,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203149640] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:39,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:39,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:39,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59380967] [2022-12-14 11:30:39,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:39,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:39,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:39,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:39,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:39,316 INFO L87 Difference]: Start difference. First operand 25171 states and 53444 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:42,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:42,975 INFO L93 Difference]: Finished difference Result 30994 states and 65504 transitions. [2022-12-14 11:30:42,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 11:30:42,975 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:42,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:43,018 INFO L225 Difference]: With dead ends: 30994 [2022-12-14 11:30:43,018 INFO L226 Difference]: Without dead ends: 30994 [2022-12-14 11:30:43,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=330, Invalid=1152, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 11:30:43,018 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 580 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 4064 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 4086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 4064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:43,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1450 Invalid, 4086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 4064 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 11:30:43,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30994 states. [2022-12-14 11:30:43,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30994 to 25169. [2022-12-14 11:30:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25169 states, 25126 states have (on average 2.126721324524397) internal successors, (53436), 25168 states have internal predecessors, (53436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:43,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25169 states to 25169 states and 53436 transitions. [2022-12-14 11:30:43,407 INFO L78 Accepts]: Start accepts. Automaton has 25169 states and 53436 transitions. Word has length 31 [2022-12-14 11:30:43,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:43,407 INFO L495 AbstractCegarLoop]: Abstraction has 25169 states and 53436 transitions. [2022-12-14 11:30:43,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:43,407 INFO L276 IsEmpty]: Start isEmpty. Operand 25169 states and 53436 transitions. [2022-12-14 11:30:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:43,412 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:43,412 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] [2022-12-14 11:30:43,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-12-14 11:30:43,412 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:43,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:43,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1706803263, now seen corresponding path program 23 times [2022-12-14 11:30:43,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:43,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054798322] [2022-12-14 11:30:43,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:43,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:44,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:44,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054798322] [2022-12-14 11:30:44,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054798322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:44,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:44,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:44,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371708140] [2022-12-14 11:30:44,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:44,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:44,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:44,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:44,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:44,723 INFO L87 Difference]: Start difference. First operand 25169 states and 53436 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:46,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:46,831 INFO L93 Difference]: Finished difference Result 30344 states and 64203 transitions. [2022-12-14 11:30:46,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 11:30:46,832 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:46,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:46,875 INFO L225 Difference]: With dead ends: 30344 [2022-12-14 11:30:46,875 INFO L226 Difference]: Without dead ends: 30344 [2022-12-14 11:30:46,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:30:46,875 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 472 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 2946 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:46,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1045 Invalid, 2969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2946 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:30:46,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30344 states. [2022-12-14 11:30:47,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30344 to 25170. [2022-12-14 11:30:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25170 states, 25127 states have (on average 2.1267162812910416) internal successors, (53438), 25169 states have internal predecessors, (53438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25170 states to 25170 states and 53438 transitions. [2022-12-14 11:30:47,249 INFO L78 Accepts]: Start accepts. Automaton has 25170 states and 53438 transitions. Word has length 31 [2022-12-14 11:30:47,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:47,250 INFO L495 AbstractCegarLoop]: Abstraction has 25170 states and 53438 transitions. [2022-12-14 11:30:47,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:47,250 INFO L276 IsEmpty]: Start isEmpty. Operand 25170 states and 53438 transitions. [2022-12-14 11:30:47,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:47,254 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:47,254 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] [2022-12-14 11:30:47,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-12-14 11:30:47,254 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:47,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:47,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1966878693, now seen corresponding path program 24 times [2022-12-14 11:30:47,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:47,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261093276] [2022-12-14 11:30:47,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:48,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:48,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:48,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261093276] [2022-12-14 11:30:48,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261093276] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:48,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:48,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:48,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670779056] [2022-12-14 11:30:48,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:48,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:48,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:48,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:48,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:48,345 INFO L87 Difference]: Start difference. First operand 25170 states and 53438 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:50,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:50,270 INFO L93 Difference]: Finished difference Result 30343 states and 64200 transitions. [2022-12-14 11:30:50,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 11:30:50,271 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:50,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:50,309 INFO L225 Difference]: With dead ends: 30343 [2022-12-14 11:30:50,309 INFO L226 Difference]: Without dead ends: 30343 [2022-12-14 11:30:50,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:30:50,309 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 543 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:50,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 942 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2595 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:30:50,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30343 states. [2022-12-14 11:30:50,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30343 to 25169. [2022-12-14 11:30:50,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25169 states, 25126 states have (on average 2.126721324524397) internal successors, (53436), 25168 states have internal predecessors, (53436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25169 states to 25169 states and 53436 transitions. [2022-12-14 11:30:50,659 INFO L78 Accepts]: Start accepts. Automaton has 25169 states and 53436 transitions. Word has length 31 [2022-12-14 11:30:50,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:50,659 INFO L495 AbstractCegarLoop]: Abstraction has 25169 states and 53436 transitions. [2022-12-14 11:30:50,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand 25169 states and 53436 transitions. [2022-12-14 11:30:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:50,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:50,664 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] [2022-12-14 11:30:50,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-12-14 11:30:50,664 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:50,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1591504831, now seen corresponding path program 25 times [2022-12-14 11:30:50,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:50,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877427756] [2022-12-14 11:30:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:50,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:51,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:51,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:51,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877427756] [2022-12-14 11:30:51,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877427756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:51,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:51,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:51,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273108372] [2022-12-14 11:30:51,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:51,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:51,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:51,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:51,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:51,725 INFO L87 Difference]: Start difference. First operand 25169 states and 53436 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:53,880 INFO L93 Difference]: Finished difference Result 30331 states and 64176 transitions. [2022-12-14 11:30:53,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-14 11:30:53,881 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:53,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:53,921 INFO L225 Difference]: With dead ends: 30331 [2022-12-14 11:30:53,921 INFO L226 Difference]: Without dead ends: 30331 [2022-12-14 11:30:53,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:30:53,922 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 623 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 2861 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 2873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:53,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 941 Invalid, 2873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2861 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 11:30:53,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30331 states. [2022-12-14 11:30:54,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30331 to 25169. [2022-12-14 11:30:54,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25169 states, 25126 states have (on average 2.126721324524397) internal successors, (53436), 25168 states have internal predecessors, (53436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:54,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25169 states to 25169 states and 53436 transitions. [2022-12-14 11:30:54,280 INFO L78 Accepts]: Start accepts. Automaton has 25169 states and 53436 transitions. Word has length 31 [2022-12-14 11:30:54,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:54,280 INFO L495 AbstractCegarLoop]: Abstraction has 25169 states and 53436 transitions. [2022-12-14 11:30:54,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 25169 states and 53436 transitions. [2022-12-14 11:30:54,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:54,285 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:54,285 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] [2022-12-14 11:30:54,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-12-14 11:30:54,285 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:54,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:54,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1217637391, now seen corresponding path program 26 times [2022-12-14 11:30:54,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:54,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832615608] [2022-12-14 11:30:54,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:54,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:30:55,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:30:55,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:30:55,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832615608] [2022-12-14 11:30:55,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832615608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:30:55,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:30:55,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:30:55,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497121126] [2022-12-14 11:30:55,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:30:55,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:30:55,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:30:55,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:30:55,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:30:55,457 INFO L87 Difference]: Start difference. First operand 25169 states and 53436 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:58,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:30:58,840 INFO L93 Difference]: Finished difference Result 30338 states and 64190 transitions. [2022-12-14 11:30:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 11:30:58,841 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:30:58,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:30:58,879 INFO L225 Difference]: With dead ends: 30338 [2022-12-14 11:30:58,879 INFO L226 Difference]: Without dead ends: 30338 [2022-12-14 11:30:58,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 11:30:58,880 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 516 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 4101 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 4120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 4101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:30:58,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1052 Invalid, 4120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4101 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 11:30:58,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30338 states. [2022-12-14 11:30:59,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30338 to 25169. [2022-12-14 11:30:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25169 states, 25126 states have (on average 2.126721324524397) internal successors, (53436), 25168 states have internal predecessors, (53436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:59,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25169 states to 25169 states and 53436 transitions. [2022-12-14 11:30:59,218 INFO L78 Accepts]: Start accepts. Automaton has 25169 states and 53436 transitions. Word has length 31 [2022-12-14 11:30:59,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:30:59,218 INFO L495 AbstractCegarLoop]: Abstraction has 25169 states and 53436 transitions. [2022-12-14 11:30:59,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:30:59,218 INFO L276 IsEmpty]: Start isEmpty. Operand 25169 states and 53436 transitions. [2022-12-14 11:30:59,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:30:59,223 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:30:59,223 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] [2022-12-14 11:30:59,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-12-14 11:30:59,223 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:30:59,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:30:59,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1018566641, now seen corresponding path program 27 times [2022-12-14 11:30:59,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:30:59,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124959586] [2022-12-14 11:30:59,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:30:59,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:30:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:00,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:31:00,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:00,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124959586] [2022-12-14 11:31:00,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124959586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:00,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:00,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:31:00,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098692782] [2022-12-14 11:31:00,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:00,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:31:00,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:00,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:31:00,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:31:00,395 INFO L87 Difference]: Start difference. First operand 25169 states and 53436 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:02,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:02,602 INFO L93 Difference]: Finished difference Result 30355 states and 64225 transitions. [2022-12-14 11:31:02,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 11:31:02,603 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:31:02,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:02,645 INFO L225 Difference]: With dead ends: 30355 [2022-12-14 11:31:02,645 INFO L226 Difference]: Without dead ends: 30355 [2022-12-14 11:31:02,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:31:02,645 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 513 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:31:02,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 937 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:31:02,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30355 states. [2022-12-14 11:31:02,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30355 to 25169. [2022-12-14 11:31:02,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25169 states, 25126 states have (on average 2.126721324524397) internal successors, (53436), 25168 states have internal predecessors, (53436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25169 states to 25169 states and 53436 transitions. [2022-12-14 11:31:02,993 INFO L78 Accepts]: Start accepts. Automaton has 25169 states and 53436 transitions. Word has length 31 [2022-12-14 11:31:02,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:02,993 INFO L495 AbstractCegarLoop]: Abstraction has 25169 states and 53436 transitions. [2022-12-14 11:31:02,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:02,993 INFO L276 IsEmpty]: Start isEmpty. Operand 25169 states and 53436 transitions. [2022-12-14 11:31:02,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:31:02,998 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:02,998 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] [2022-12-14 11:31:02,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-12-14 11:31:02,998 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:31:02,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:02,998 INFO L85 PathProgramCache]: Analyzing trace with hash -891932537, now seen corresponding path program 28 times [2022-12-14 11:31:02,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:02,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158013622] [2022-12-14 11:31:02,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:02,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:04,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:31:04,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:04,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158013622] [2022-12-14 11:31:04,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158013622] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:04,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:04,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:31:04,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056815704] [2022-12-14 11:31:04,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:04,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:31:04,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:04,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:31:04,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:31:04,380 INFO L87 Difference]: Start difference. First operand 25169 states and 53436 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:07,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:07,402 INFO L93 Difference]: Finished difference Result 30351 states and 64217 transitions. [2022-12-14 11:31:07,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 11:31:07,403 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:31:07,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:07,443 INFO L225 Difference]: With dead ends: 30351 [2022-12-14 11:31:07,443 INFO L226 Difference]: Without dead ends: 30351 [2022-12-14 11:31:07,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2022-12-14 11:31:07,443 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 514 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 3159 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 3183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:31:07,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 946 Invalid, 3183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3159 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 11:31:07,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30351 states. [2022-12-14 11:31:07,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30351 to 25169. [2022-12-14 11:31:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25169 states, 25126 states have (on average 2.126721324524397) internal successors, (53436), 25168 states have internal predecessors, (53436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:07,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25169 states to 25169 states and 53436 transitions. [2022-12-14 11:31:07,811 INFO L78 Accepts]: Start accepts. Automaton has 25169 states and 53436 transitions. Word has length 31 [2022-12-14 11:31:07,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:07,811 INFO L495 AbstractCegarLoop]: Abstraction has 25169 states and 53436 transitions. [2022-12-14 11:31:07,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 25169 states and 53436 transitions. [2022-12-14 11:31:07,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:31:07,816 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:07,816 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] [2022-12-14 11:31:07,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-12-14 11:31:07,816 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:31:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:07,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1152007967, now seen corresponding path program 29 times [2022-12-14 11:31:07,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:07,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023775905] [2022-12-14 11:31:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:07,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:09,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:31:09,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:09,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023775905] [2022-12-14 11:31:09,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023775905] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:09,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:09,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:31:09,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777175154] [2022-12-14 11:31:09,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:09,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:31:09,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:09,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:31:09,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:31:09,070 INFO L87 Difference]: Start difference. First operand 25169 states and 53436 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:11,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:11,524 INFO L93 Difference]: Finished difference Result 30343 states and 64200 transitions. [2022-12-14 11:31:11,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 11:31:11,525 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:31:11,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:11,567 INFO L225 Difference]: With dead ends: 30343 [2022-12-14 11:31:11,567 INFO L226 Difference]: Without dead ends: 30343 [2022-12-14 11:31:11,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:31:11,568 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 439 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:31:11,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1039 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 11:31:11,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30343 states. [2022-12-14 11:31:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30343 to 25165. [2022-12-14 11:31:11,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25165 states, 25122 states have (on average 2.1267415014728126) internal successors, (53428), 25164 states have internal predecessors, (53428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:11,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25165 states to 25165 states and 53428 transitions. [2022-12-14 11:31:11,909 INFO L78 Accepts]: Start accepts. Automaton has 25165 states and 53428 transitions. Word has length 31 [2022-12-14 11:31:11,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:11,909 INFO L495 AbstractCegarLoop]: Abstraction has 25165 states and 53428 transitions. [2022-12-14 11:31:11,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:11,909 INFO L276 IsEmpty]: Start isEmpty. Operand 25165 states and 53428 transitions. [2022-12-14 11:31:11,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:31:11,914 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:11,914 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] [2022-12-14 11:31:11,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-12-14 11:31:11,914 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:31:11,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash 800385234, now seen corresponding path program 41 times [2022-12-14 11:31:11,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:11,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527997688] [2022-12-14 11:31:11,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:11,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:14,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:31:14,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:14,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527997688] [2022-12-14 11:31:14,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527997688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:14,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:14,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:31:14,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252565843] [2022-12-14 11:31:14,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:14,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:31:14,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:14,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:31:14,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:31:14,903 INFO L87 Difference]: Start difference. First operand 25165 states and 53428 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:21,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:21,287 INFO L93 Difference]: Finished difference Result 28201 states and 59558 transitions. [2022-12-14 11:31:21,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-14 11:31:21,288 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:31:21,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:21,324 INFO L225 Difference]: With dead ends: 28201 [2022-12-14 11:31:21,324 INFO L226 Difference]: Without dead ends: 28201 [2022-12-14 11:31:21,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=499, Invalid=2363, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 11:31:21,325 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 578 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 4776 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 5262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 4776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:31:21,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 359 Invalid, 5262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [486 Valid, 4776 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 11:31:21,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28201 states. [2022-12-14 11:31:21,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28201 to 25360. [2022-12-14 11:31:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25360 states, 25317 states have (on average 2.126041790101513) internal successors, (53825), 25359 states have internal predecessors, (53825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:21,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25360 states to 25360 states and 53825 transitions. [2022-12-14 11:31:21,630 INFO L78 Accepts]: Start accepts. Automaton has 25360 states and 53825 transitions. Word has length 31 [2022-12-14 11:31:21,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:21,630 INFO L495 AbstractCegarLoop]: Abstraction has 25360 states and 53825 transitions. [2022-12-14 11:31:21,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:21,630 INFO L276 IsEmpty]: Start isEmpty. Operand 25360 states and 53825 transitions. [2022-12-14 11:31:21,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:31:21,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:21,635 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] [2022-12-14 11:31:21,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-12-14 11:31:21,635 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:31:21,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1303773110, now seen corresponding path program 42 times [2022-12-14 11:31:21,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:21,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971231355] [2022-12-14 11:31:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:21,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:25,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:31:25,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:25,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971231355] [2022-12-14 11:31:25,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971231355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:25,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:25,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:31:25,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738211052] [2022-12-14 11:31:25,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:25,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:31:25,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:25,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:31:25,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:31:25,023 INFO L87 Difference]: Start difference. First operand 25360 states and 53825 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:32,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:32,640 INFO L93 Difference]: Finished difference Result 29647 states and 62510 transitions. [2022-12-14 11:31:32,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-14 11:31:32,640 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:31:32,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:32,678 INFO L225 Difference]: With dead ends: 29647 [2022-12-14 11:31:32,678 INFO L226 Difference]: Without dead ends: 29647 [2022-12-14 11:31:32,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=520, Invalid=2450, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 11:31:32,679 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 528 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 6080 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 6474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 6080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:31:32,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 379 Invalid, 6474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 6080 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 11:31:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29647 states. [2022-12-14 11:31:32,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29647 to 25379. [2022-12-14 11:31:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25379 states, 25336 states have (on average 2.125947268708557) internal successors, (53863), 25378 states have internal predecessors, (53863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:33,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25379 states to 25379 states and 53863 transitions. [2022-12-14 11:31:33,006 INFO L78 Accepts]: Start accepts. Automaton has 25379 states and 53863 transitions. Word has length 31 [2022-12-14 11:31:33,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:33,006 INFO L495 AbstractCegarLoop]: Abstraction has 25379 states and 53863 transitions. [2022-12-14 11:31:33,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:33,007 INFO L276 IsEmpty]: Start isEmpty. Operand 25379 states and 53863 transitions. [2022-12-14 11:31:33,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:31:33,011 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:33,011 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] [2022-12-14 11:31:33,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-12-14 11:31:33,011 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:31:33,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1014080746, now seen corresponding path program 43 times [2022-12-14 11:31:33,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:33,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811991119] [2022-12-14 11:31:33,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:33,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:36,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:31:36,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:36,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811991119] [2022-12-14 11:31:36,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811991119] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:36,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:36,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 11:31:36,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230749021] [2022-12-14 11:31:36,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:36,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 11:31:36,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:36,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 11:31:36,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:31:36,474 INFO L87 Difference]: Start difference. First operand 25379 states and 53863 transitions. Second operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:43,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:43,171 INFO L93 Difference]: Finished difference Result 29922 states and 63078 transitions. [2022-12-14 11:31:43,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-14 11:31:43,172 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:31:43,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:43,208 INFO L225 Difference]: With dead ends: 29922 [2022-12-14 11:31:43,208 INFO L226 Difference]: Without dead ends: 29922 [2022-12-14 11:31:43,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=552, Invalid=2754, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 11:31:43,208 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 516 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 6748 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 7227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 6748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:31:43,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 448 Invalid, 7227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [479 Valid, 6748 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 11:31:43,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29922 states. [2022-12-14 11:31:43,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29922 to 25402. [2022-12-14 11:31:43,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25402 states, 25359 states have (on average 2.125833037580346) internal successors, (53909), 25401 states have internal predecessors, (53909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25402 states to 25402 states and 53909 transitions. [2022-12-14 11:31:43,573 INFO L78 Accepts]: Start accepts. Automaton has 25402 states and 53909 transitions. Word has length 31 [2022-12-14 11:31:43,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:43,573 INFO L495 AbstractCegarLoop]: Abstraction has 25402 states and 53909 transitions. [2022-12-14 11:31:43,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:43,573 INFO L276 IsEmpty]: Start isEmpty. Operand 25402 states and 53909 transitions. [2022-12-14 11:31:43,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:31:43,577 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:43,577 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] [2022-12-14 11:31:43,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-12-14 11:31:43,577 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:31:43,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:43,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1066451194, now seen corresponding path program 44 times [2022-12-14 11:31:43,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:43,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421076004] [2022-12-14 11:31:43,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:43,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:46,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:31:46,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:46,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421076004] [2022-12-14 11:31:46,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421076004] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:46,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:46,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-14 11:31:46,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569836802] [2022-12-14 11:31:46,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:46,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 11:31:46,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:46,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 11:31:46,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:31:46,928 INFO L87 Difference]: Start difference. First operand 25402 states and 53909 transitions. Second operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:53,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:53,438 INFO L93 Difference]: Finished difference Result 29968 states and 63159 transitions. [2022-12-14 11:31:53,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-14 11:31:53,439 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:31:53,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:53,476 INFO L225 Difference]: With dead ends: 29968 [2022-12-14 11:31:53,476 INFO L226 Difference]: Without dead ends: 29968 [2022-12-14 11:31:53,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=545, Invalid=2647, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 11:31:53,476 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 523 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 5932 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 6466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 5932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:31:53,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 446 Invalid, 6466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 5932 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 11:31:53,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29968 states. [2022-12-14 11:31:53,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29968 to 25404. [2022-12-14 11:31:53,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25404 states, 25361 states have (on average 2.1259414060959743) internal successors, (53916), 25403 states have internal predecessors, (53916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25404 states to 25404 states and 53916 transitions. [2022-12-14 11:31:53,802 INFO L78 Accepts]: Start accepts. Automaton has 25404 states and 53916 transitions. Word has length 31 [2022-12-14 11:31:53,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:53,803 INFO L495 AbstractCegarLoop]: Abstraction has 25404 states and 53916 transitions. [2022-12-14 11:31:53,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:53,803 INFO L276 IsEmpty]: Start isEmpty. Operand 25404 states and 53916 transitions. [2022-12-14 11:31:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:31:53,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:53,807 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] [2022-12-14 11:31:53,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-12-14 11:31:53,807 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:31:53,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:53,808 INFO L85 PathProgramCache]: Analyzing trace with hash -687903704, now seen corresponding path program 45 times [2022-12-14 11:31:53,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:53,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492333348] [2022-12-14 11:31:53,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:53,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:31:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:31:54,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:31:54,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492333348] [2022-12-14 11:31:54,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492333348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:31:54,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:31:54,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:31:54,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967073544] [2022-12-14 11:31:54,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:31:54,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:31:54,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:31:54,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:31:54,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:31:54,662 INFO L87 Difference]: Start difference. First operand 25404 states and 53916 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:31:59,223 INFO L93 Difference]: Finished difference Result 31293 states and 65881 transitions. [2022-12-14 11:31:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-14 11:31:59,224 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:31:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:31:59,262 INFO L225 Difference]: With dead ends: 31293 [2022-12-14 11:31:59,262 INFO L226 Difference]: Without dead ends: 31293 [2022-12-14 11:31:59,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=594, Invalid=2376, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 11:31:59,263 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 839 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 3924 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 4155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 3924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:31:59,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1633 Invalid, 4155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 3924 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:31:59,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31293 states. [2022-12-14 11:31:59,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31293 to 25150. [2022-12-14 11:31:59,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25150 states, 25107 states have (on average 2.126817222288605) internal successors, (53398), 25149 states have internal predecessors, (53398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:59,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25150 states to 25150 states and 53398 transitions. [2022-12-14 11:31:59,604 INFO L78 Accepts]: Start accepts. Automaton has 25150 states and 53398 transitions. Word has length 31 [2022-12-14 11:31:59,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:31:59,604 INFO L495 AbstractCegarLoop]: Abstraction has 25150 states and 53398 transitions. [2022-12-14 11:31:59,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:31:59,605 INFO L276 IsEmpty]: Start isEmpty. Operand 25150 states and 53398 transitions. [2022-12-14 11:31:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:31:59,609 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:31:59,609 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] [2022-12-14 11:31:59,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-12-14 11:31:59,609 INFO L420 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:31:59,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:31:59,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1997268627, now seen corresponding path program 30 times [2022-12-14 11:31:59,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:31:59,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448930038] [2022-12-14 11:31:59,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:31:59,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:31:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:00,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:00,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448930038] [2022-12-14 11:32:00,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448930038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:00,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:00,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:32:00,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504155028] [2022-12-14 11:32:00,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:00,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:32:00,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:00,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:32:00,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:32:00,874 INFO L87 Difference]: Start difference. First operand 25150 states and 53398 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:03,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:03,036 INFO L93 Difference]: Finished difference Result 28509 states and 60214 transitions. [2022-12-14 11:32:03,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 11:32:03,037 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:03,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:03,077 INFO L225 Difference]: With dead ends: 28509 [2022-12-14 11:32:03,077 INFO L226 Difference]: Without dead ends: 28509 [2022-12-14 11:32:03,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:32:03,078 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 518 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 2176 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:03,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1197 Invalid, 2204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2176 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:32:03,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28509 states. [2022-12-14 11:32:03,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28509 to 25146. [2022-12-14 11:32:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25146 states, 25103 states have (on average 2.1268374297892683) internal successors, (53390), 25145 states have internal predecessors, (53390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25146 states to 25146 states and 53390 transitions. [2022-12-14 11:32:03,425 INFO L78 Accepts]: Start accepts. Automaton has 25146 states and 53390 transitions. Word has length 31 [2022-12-14 11:32:03,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:03,425 INFO L495 AbstractCegarLoop]: Abstraction has 25146 states and 53390 transitions. [2022-12-14 11:32:03,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:03,425 INFO L276 IsEmpty]: Start isEmpty. Operand 25146 states and 53390 transitions. [2022-12-14 11:32:03,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:03,430 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:03,430 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] [2022-12-14 11:32:03,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-12-14 11:32:03,430 INFO L420 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:03,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash -173305981, now seen corresponding path program 31 times [2022-12-14 11:32:03,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:03,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284457773] [2022-12-14 11:32:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:03,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:04,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:04,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284457773] [2022-12-14 11:32:04,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284457773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:04,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:04,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:32:04,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938384942] [2022-12-14 11:32:04,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:04,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:32:04,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:04,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:32:04,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:32:04,529 INFO L87 Difference]: Start difference. First operand 25146 states and 53390 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:07,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:07,878 INFO L93 Difference]: Finished difference Result 28471 states and 60136 transitions. [2022-12-14 11:32:07,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 11:32:07,879 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:07,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:07,918 INFO L225 Difference]: With dead ends: 28471 [2022-12-14 11:32:07,918 INFO L226 Difference]: Without dead ends: 28471 [2022-12-14 11:32:07,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 11:32:07,919 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 502 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 4315 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 4341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 4315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:07,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1314 Invalid, 4341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 4315 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 11:32:07,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28471 states. [2022-12-14 11:32:08,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28471 to 24846. [2022-12-14 11:32:08,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24846 states, 24803 states have (on average 2.1278474378099426) internal successors, (52777), 24845 states have internal predecessors, (52777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:08,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24846 states to 24846 states and 52777 transitions. [2022-12-14 11:32:08,255 INFO L78 Accepts]: Start accepts. Automaton has 24846 states and 52777 transitions. Word has length 31 [2022-12-14 11:32:08,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:08,255 INFO L495 AbstractCegarLoop]: Abstraction has 24846 states and 52777 transitions. [2022-12-14 11:32:08,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:08,255 INFO L276 IsEmpty]: Start isEmpty. Operand 24846 states and 52777 transitions. [2022-12-14 11:32:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:08,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:08,261 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] [2022-12-14 11:32:08,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-12-14 11:32:08,261 INFO L420 AbstractCegarLoop]: === Iteration 130 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:08,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:08,261 INFO L85 PathProgramCache]: Analyzing trace with hash 2110681178, now seen corresponding path program 46 times [2022-12-14 11:32:08,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:08,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903652647] [2022-12-14 11:32:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:08,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:09,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:09,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903652647] [2022-12-14 11:32:09,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903652647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:09,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:09,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:32:09,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003920879] [2022-12-14 11:32:09,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:09,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:32:09,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:09,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:32:09,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:32:09,184 INFO L87 Difference]: Start difference. First operand 24846 states and 52777 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:12,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:12,034 INFO L93 Difference]: Finished difference Result 33502 states and 70692 transitions. [2022-12-14 11:32:12,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-14 11:32:12,035 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:12,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:12,081 INFO L225 Difference]: With dead ends: 33502 [2022-12-14 11:32:12,081 INFO L226 Difference]: Without dead ends: 33502 [2022-12-14 11:32:12,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=251, Invalid=679, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:32:12,081 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 573 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 3035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:12,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 356 Invalid, 3035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 2801 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 11:32:12,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33502 states. [2022-12-14 11:32:12,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33502 to 25804. [2022-12-14 11:32:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25804 states, 25761 states have (on average 2.1283723457940296) internal successors, (54829), 25803 states have internal predecessors, (54829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:12,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25804 states to 25804 states and 54829 transitions. [2022-12-14 11:32:12,446 INFO L78 Accepts]: Start accepts. Automaton has 25804 states and 54829 transitions. Word has length 31 [2022-12-14 11:32:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:12,446 INFO L495 AbstractCegarLoop]: Abstraction has 25804 states and 54829 transitions. [2022-12-14 11:32:12,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:12,446 INFO L276 IsEmpty]: Start isEmpty. Operand 25804 states and 54829 transitions. [2022-12-14 11:32:12,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:12,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:12,451 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] [2022-12-14 11:32:12,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-12-14 11:32:12,451 INFO L420 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:12,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:12,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1874213327, now seen corresponding path program 32 times [2022-12-14 11:32:12,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:12,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835197868] [2022-12-14 11:32:12,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:12,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:13,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:13,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835197868] [2022-12-14 11:32:13,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835197868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:13,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:13,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 11:32:13,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731797062] [2022-12-14 11:32:13,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:13,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 11:32:13,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:13,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 11:32:13,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:32:13,524 INFO L87 Difference]: Start difference. First operand 25804 states and 54829 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:16,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:16,090 INFO L93 Difference]: Finished difference Result 27508 states and 58193 transitions. [2022-12-14 11:32:16,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-14 11:32:16,091 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:16,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:16,131 INFO L225 Difference]: With dead ends: 27508 [2022-12-14 11:32:16,131 INFO L226 Difference]: Without dead ends: 27508 [2022-12-14 11:32:16,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=225, Invalid=705, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:32:16,132 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 689 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 3714 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 3777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:16,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 629 Invalid, 3777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3714 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 11:32:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27508 states. [2022-12-14 11:32:16,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27508 to 25794. [2022-12-14 11:32:16,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25794 states, 25751 states have (on average 2.1281891965360566) internal successors, (54803), 25793 states have internal predecessors, (54803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:16,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25794 states to 25794 states and 54803 transitions. [2022-12-14 11:32:16,484 INFO L78 Accepts]: Start accepts. Automaton has 25794 states and 54803 transitions. Word has length 31 [2022-12-14 11:32:16,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:16,484 INFO L495 AbstractCegarLoop]: Abstraction has 25794 states and 54803 transitions. [2022-12-14 11:32:16,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:16,484 INFO L276 IsEmpty]: Start isEmpty. Operand 25794 states and 54803 transitions. [2022-12-14 11:32:16,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:16,489 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:16,489 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] [2022-12-14 11:32:16,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-12-14 11:32:16,489 INFO L420 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:16,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:16,489 INFO L85 PathProgramCache]: Analyzing trace with hash -2013942344, now seen corresponding path program 38 times [2022-12-14 11:32:16,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:16,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002837402] [2022-12-14 11:32:16,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:16,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:18,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:18,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002837402] [2022-12-14 11:32:18,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002837402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:18,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:18,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:32:18,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286467886] [2022-12-14 11:32:18,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:18,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:32:18,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:18,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:32:18,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:32:18,765 INFO L87 Difference]: Start difference. First operand 25794 states and 54803 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:20,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:20,420 INFO L93 Difference]: Finished difference Result 30482 states and 64282 transitions. [2022-12-14 11:32:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:32:20,421 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:20,466 INFO L225 Difference]: With dead ends: 30482 [2022-12-14 11:32:20,466 INFO L226 Difference]: Without dead ends: 30482 [2022-12-14 11:32:20,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:32:20,466 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 687 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 2468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:20,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 454 Invalid, 2468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:32:20,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30482 states. [2022-12-14 11:32:20,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30482 to 28121. [2022-12-14 11:32:20,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28121 states, 28078 states have (on average 2.1365125721205214) internal successors, (59989), 28120 states have internal predecessors, (59989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28121 states to 28121 states and 59989 transitions. [2022-12-14 11:32:20,857 INFO L78 Accepts]: Start accepts. Automaton has 28121 states and 59989 transitions. Word has length 31 [2022-12-14 11:32:20,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:20,857 INFO L495 AbstractCegarLoop]: Abstraction has 28121 states and 59989 transitions. [2022-12-14 11:32:20,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:20,857 INFO L276 IsEmpty]: Start isEmpty. Operand 28121 states and 59989 transitions. [2022-12-14 11:32:20,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:20,862 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:20,862 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] [2022-12-14 11:32:20,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-12-14 11:32:20,862 INFO L420 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:20,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:20,865 INFO L85 PathProgramCache]: Analyzing trace with hash -855387788, now seen corresponding path program 39 times [2022-12-14 11:32:20,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:20,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433482963] [2022-12-14 11:32:20,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:20,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:23,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:23,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433482963] [2022-12-14 11:32:23,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433482963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:23,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:23,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:32:23,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891570136] [2022-12-14 11:32:23,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:23,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:32:23,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:23,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:32:23,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:32:23,195 INFO L87 Difference]: Start difference. First operand 28121 states and 59989 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:24,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:24,608 INFO L93 Difference]: Finished difference Result 30431 states and 64180 transitions. [2022-12-14 11:32:24,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:32:24,608 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:24,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:24,652 INFO L225 Difference]: With dead ends: 30431 [2022-12-14 11:32:24,652 INFO L226 Difference]: Without dead ends: 30431 [2022-12-14 11:32:24,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:32:24,652 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 616 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:24,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 448 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:32:24,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30431 states. [2022-12-14 11:32:24,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30431 to 28111. [2022-12-14 11:32:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28111 states, 28068 states have (on average 2.1365255807325068) internal successors, (59968), 28110 states have internal predecessors, (59968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:25,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28111 states to 28111 states and 59968 transitions. [2022-12-14 11:32:25,032 INFO L78 Accepts]: Start accepts. Automaton has 28111 states and 59968 transitions. Word has length 31 [2022-12-14 11:32:25,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:25,032 INFO L495 AbstractCegarLoop]: Abstraction has 28111 states and 59968 transitions. [2022-12-14 11:32:25,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:25,032 INFO L276 IsEmpty]: Start isEmpty. Operand 28111 states and 59968 transitions. [2022-12-14 11:32:25,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:25,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:25,037 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] [2022-12-14 11:32:25,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-12-14 11:32:25,037 INFO L420 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:25,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:25,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1496725048, now seen corresponding path program 40 times [2022-12-14 11:32:25,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:25,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948390775] [2022-12-14 11:32:25,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:25,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:26,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:26,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:26,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948390775] [2022-12-14 11:32:26,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948390775] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:26,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:26,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:32:26,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069749355] [2022-12-14 11:32:26,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:26,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:32:26,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:26,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:32:26,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:32:26,813 INFO L87 Difference]: Start difference. First operand 28111 states and 59968 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:28,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:28,362 INFO L93 Difference]: Finished difference Result 30647 states and 64612 transitions. [2022-12-14 11:32:28,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:32:28,363 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:28,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:28,406 INFO L225 Difference]: With dead ends: 30647 [2022-12-14 11:32:28,406 INFO L226 Difference]: Without dead ends: 30647 [2022-12-14 11:32:28,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:32:28,406 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 607 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:28,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 447 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:32:28,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30647 states. [2022-12-14 11:32:28,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30647 to 28101. [2022-12-14 11:32:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28101 states, 28058 states have (on average 2.1365385986171503) internal successors, (59947), 28100 states have internal predecessors, (59947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:28,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28101 states to 28101 states and 59947 transitions. [2022-12-14 11:32:28,780 INFO L78 Accepts]: Start accepts. Automaton has 28101 states and 59947 transitions. Word has length 31 [2022-12-14 11:32:28,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:28,780 INFO L495 AbstractCegarLoop]: Abstraction has 28101 states and 59947 transitions. [2022-12-14 11:32:28,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:28,781 INFO L276 IsEmpty]: Start isEmpty. Operand 28101 states and 59947 transitions. [2022-12-14 11:32:28,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:28,785 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:28,785 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] [2022-12-14 11:32:28,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-12-14 11:32:28,786 INFO L420 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:28,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:28,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1304955190, now seen corresponding path program 41 times [2022-12-14 11:32:28,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:28,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393305862] [2022-12-14 11:32:28,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:28,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:29,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:29,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:29,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393305862] [2022-12-14 11:32:29,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393305862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:29,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:29,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:32:29,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462658246] [2022-12-14 11:32:29,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:29,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:32:29,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:29,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:32:29,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:32:29,953 INFO L87 Difference]: Start difference. First operand 28101 states and 59947 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:32,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:32,510 INFO L93 Difference]: Finished difference Result 36054 states and 76650 transitions. [2022-12-14 11:32:32,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 11:32:32,510 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:32,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:32,562 INFO L225 Difference]: With dead ends: 36054 [2022-12-14 11:32:32,562 INFO L226 Difference]: Without dead ends: 36054 [2022-12-14 11:32:32,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:32:32,563 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 488 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 3348 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 3559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 3348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:32,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 616 Invalid, 3559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 3348 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 11:32:32,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36054 states. [2022-12-14 11:32:32,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36054 to 28225. [2022-12-14 11:32:32,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28225 states, 28182 states have (on average 2.1362926690795545) internal successors, (60205), 28224 states have internal predecessors, (60205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:32,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28225 states to 28225 states and 60205 transitions. [2022-12-14 11:32:32,979 INFO L78 Accepts]: Start accepts. Automaton has 28225 states and 60205 transitions. Word has length 31 [2022-12-14 11:32:32,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:32,979 INFO L495 AbstractCegarLoop]: Abstraction has 28225 states and 60205 transitions. [2022-12-14 11:32:32,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:32,980 INFO L276 IsEmpty]: Start isEmpty. Operand 28225 states and 60205 transitions. [2022-12-14 11:32:32,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:32,984 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:32,984 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] [2022-12-14 11:32:32,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-12-14 11:32:32,985 INFO L420 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:32,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:32,985 INFO L85 PathProgramCache]: Analyzing trace with hash 301438000, now seen corresponding path program 42 times [2022-12-14 11:32:32,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:32,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313105841] [2022-12-14 11:32:32,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:32,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:33,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:33,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313105841] [2022-12-14 11:32:33,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313105841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:33,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:33,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:33,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610660367] [2022-12-14 11:32:33,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:33,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:33,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:33,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:33,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:33,659 INFO L87 Difference]: Start difference. First operand 28225 states and 60205 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:34,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:34,605 INFO L93 Difference]: Finished difference Result 29923 states and 63184 transitions. [2022-12-14 11:32:34,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:32:34,606 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:34,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:34,647 INFO L225 Difference]: With dead ends: 29923 [2022-12-14 11:32:34,647 INFO L226 Difference]: Without dead ends: 29923 [2022-12-14 11:32:34,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:32:34,647 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 677 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:34,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 443 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 11:32:34,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29923 states. [2022-12-14 11:32:34,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29923 to 27485. [2022-12-14 11:32:34,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27485 states, 27442 states have (on average 2.1358137162014432) internal successors, (58611), 27484 states have internal predecessors, (58611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:34,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27485 states to 27485 states and 58611 transitions. [2022-12-14 11:32:34,998 INFO L78 Accepts]: Start accepts. Automaton has 27485 states and 58611 transitions. Word has length 31 [2022-12-14 11:32:34,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:34,998 INFO L495 AbstractCegarLoop]: Abstraction has 27485 states and 58611 transitions. [2022-12-14 11:32:34,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:34,999 INFO L276 IsEmpty]: Start isEmpty. Operand 27485 states and 58611 transitions. [2022-12-14 11:32:35,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:35,003 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:35,003 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] [2022-12-14 11:32:35,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-12-14 11:32:35,003 INFO L420 AbstractCegarLoop]: === Iteration 137 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:35,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:35,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1514404015, now seen corresponding path program 8 times [2022-12-14 11:32:35,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:35,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781273081] [2022-12-14 11:32:35,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:35,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:35,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:35,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:35,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781273081] [2022-12-14 11:32:35,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781273081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:35,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:35,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:35,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097885371] [2022-12-14 11:32:35,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:35,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:35,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:35,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:35,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:35,370 INFO L87 Difference]: Start difference. First operand 27485 states and 58611 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:36,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:36,413 INFO L93 Difference]: Finished difference Result 29372 states and 62077 transitions. [2022-12-14 11:32:36,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:32:36,414 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:36,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:36,454 INFO L225 Difference]: With dead ends: 29372 [2022-12-14 11:32:36,454 INFO L226 Difference]: Without dead ends: 29372 [2022-12-14 11:32:36,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:32:36,454 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 537 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:36,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 447 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:32:36,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29372 states. [2022-12-14 11:32:36,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29372 to 25780. [2022-12-14 11:32:36,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25780 states, 25737 states have (on average 2.127986944865369) internal successors, (54768), 25779 states have internal predecessors, (54768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25780 states to 25780 states and 54768 transitions. [2022-12-14 11:32:36,804 INFO L78 Accepts]: Start accepts. Automaton has 25780 states and 54768 transitions. Word has length 31 [2022-12-14 11:32:36,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:36,804 INFO L495 AbstractCegarLoop]: Abstraction has 25780 states and 54768 transitions. [2022-12-14 11:32:36,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:36,804 INFO L276 IsEmpty]: Start isEmpty. Operand 25780 states and 54768 transitions. [2022-12-14 11:32:36,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:36,809 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:36,809 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] [2022-12-14 11:32:36,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-12-14 11:32:36,809 INFO L420 AbstractCegarLoop]: === Iteration 138 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:36,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:36,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1142404945, now seen corresponding path program 9 times [2022-12-14 11:32:36,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:36,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296070475] [2022-12-14 11:32:36,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:36,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:37,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:37,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:37,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296070475] [2022-12-14 11:32:37,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296070475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:37,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:37,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894216041] [2022-12-14 11:32:37,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:37,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:37,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:37,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:37,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:37,147 INFO L87 Difference]: Start difference. First operand 25780 states and 54768 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:38,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:38,453 INFO L93 Difference]: Finished difference Result 29070 states and 61473 transitions. [2022-12-14 11:32:38,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:32:38,453 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:38,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:38,492 INFO L225 Difference]: With dead ends: 29070 [2022-12-14 11:32:38,492 INFO L226 Difference]: Without dead ends: 29070 [2022-12-14 11:32:38,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:32:38,492 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 438 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:38,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 482 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:32:38,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29070 states. [2022-12-14 11:32:38,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29070 to 25784. [2022-12-14 11:32:38,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25784 states, 25741 states have (on average 2.1279670564469133) internal successors, (54776), 25783 states have internal predecessors, (54776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25784 states to 25784 states and 54776 transitions. [2022-12-14 11:32:38,822 INFO L78 Accepts]: Start accepts. Automaton has 25784 states and 54776 transitions. Word has length 31 [2022-12-14 11:32:38,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:38,823 INFO L495 AbstractCegarLoop]: Abstraction has 25784 states and 54776 transitions. [2022-12-14 11:32:38,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:38,823 INFO L276 IsEmpty]: Start isEmpty. Operand 25784 states and 54776 transitions. [2022-12-14 11:32:38,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:38,827 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:38,828 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] [2022-12-14 11:32:38,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-12-14 11:32:38,828 INFO L420 AbstractCegarLoop]: === Iteration 139 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:38,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:38,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1019963935, now seen corresponding path program 10 times [2022-12-14 11:32:38,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:38,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739829567] [2022-12-14 11:32:38,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:38,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:39,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:39,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:39,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739829567] [2022-12-14 11:32:39,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739829567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:39,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:39,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:39,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525776329] [2022-12-14 11:32:39,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:39,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:39,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:39,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:39,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:39,187 INFO L87 Difference]: Start difference. First operand 25784 states and 54776 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:40,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:40,609 INFO L93 Difference]: Finished difference Result 29086 states and 61505 transitions. [2022-12-14 11:32:40,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:32:40,609 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:40,649 INFO L225 Difference]: With dead ends: 29086 [2022-12-14 11:32:40,649 INFO L226 Difference]: Without dead ends: 29086 [2022-12-14 11:32:40,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:32:40,649 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 535 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 2133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:40,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 504 Invalid, 2133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:32:40,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29086 states. [2022-12-14 11:32:40,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29086 to 25784. [2022-12-14 11:32:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25784 states, 25741 states have (on average 2.1279670564469133) internal successors, (54776), 25783 states have internal predecessors, (54776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:40,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25784 states to 25784 states and 54776 transitions. [2022-12-14 11:32:40,982 INFO L78 Accepts]: Start accepts. Automaton has 25784 states and 54776 transitions. Word has length 31 [2022-12-14 11:32:40,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:40,982 INFO L495 AbstractCegarLoop]: Abstraction has 25784 states and 54776 transitions. [2022-12-14 11:32:40,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:40,982 INFO L276 IsEmpty]: Start isEmpty. Operand 25784 states and 54776 transitions. [2022-12-14 11:32:40,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:40,987 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:40,987 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] [2022-12-14 11:32:40,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-12-14 11:32:40,987 INFO L420 AbstractCegarLoop]: === Iteration 140 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:40,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:40,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1491554291, now seen corresponding path program 11 times [2022-12-14 11:32:40,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:40,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955080643] [2022-12-14 11:32:40,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:40,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:41,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:41,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:41,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955080643] [2022-12-14 11:32:41,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955080643] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:41,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:41,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:41,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412950593] [2022-12-14 11:32:41,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:41,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:41,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:41,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:41,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:41,349 INFO L87 Difference]: Start difference. First operand 25784 states and 54776 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:42,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:42,676 INFO L93 Difference]: Finished difference Result 29118 states and 61569 transitions. [2022-12-14 11:32:42,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:32:42,677 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:42,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:42,717 INFO L225 Difference]: With dead ends: 29118 [2022-12-14 11:32:42,717 INFO L226 Difference]: Without dead ends: 29118 [2022-12-14 11:32:42,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:32:42,717 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 500 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:42,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 473 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:32:42,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29118 states. [2022-12-14 11:32:43,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29118 to 25784. [2022-12-14 11:32:43,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25784 states, 25741 states have (on average 2.1279670564469133) internal successors, (54776), 25783 states have internal predecessors, (54776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:43,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25784 states to 25784 states and 54776 transitions. [2022-12-14 11:32:43,078 INFO L78 Accepts]: Start accepts. Automaton has 25784 states and 54776 transitions. Word has length 31 [2022-12-14 11:32:43,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:43,078 INFO L495 AbstractCegarLoop]: Abstraction has 25784 states and 54776 transitions. [2022-12-14 11:32:43,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:43,078 INFO L276 IsEmpty]: Start isEmpty. Operand 25784 states and 54776 transitions. [2022-12-14 11:32:43,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:43,082 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:43,083 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] [2022-12-14 11:32:43,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-12-14 11:32:43,083 INFO L420 AbstractCegarLoop]: === Iteration 141 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:43,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:43,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1927888387, now seen corresponding path program 12 times [2022-12-14 11:32:43,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:43,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675613812] [2022-12-14 11:32:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:43,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:43,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:43,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:43,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675613812] [2022-12-14 11:32:43,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675613812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:43,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:43,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:43,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069741678] [2022-12-14 11:32:43,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:43,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:43,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:43,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:43,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:43,449 INFO L87 Difference]: Start difference. First operand 25784 states and 54776 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:44,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:44,462 INFO L93 Difference]: Finished difference Result 29134 states and 61601 transitions. [2022-12-14 11:32:44,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:32:44,462 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:44,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:44,502 INFO L225 Difference]: With dead ends: 29134 [2022-12-14 11:32:44,502 INFO L226 Difference]: Without dead ends: 29134 [2022-12-14 11:32:44,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:32:44,503 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 483 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:44,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 456 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1610 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:32:44,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29134 states. [2022-12-14 11:32:44,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29134 to 25784. [2022-12-14 11:32:44,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25784 states, 25741 states have (on average 2.1279670564469133) internal successors, (54776), 25783 states have internal predecessors, (54776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:44,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25784 states to 25784 states and 54776 transitions. [2022-12-14 11:32:44,837 INFO L78 Accepts]: Start accepts. Automaton has 25784 states and 54776 transitions. Word has length 31 [2022-12-14 11:32:44,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:44,837 INFO L495 AbstractCegarLoop]: Abstraction has 25784 states and 54776 transitions. [2022-12-14 11:32:44,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:44,837 INFO L276 IsEmpty]: Start isEmpty. Operand 25784 states and 54776 transitions. [2022-12-14 11:32:44,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:44,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:44,842 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] [2022-12-14 11:32:44,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-12-14 11:32:44,842 INFO L420 AbstractCegarLoop]: === Iteration 142 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:44,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:44,842 INFO L85 PathProgramCache]: Analyzing trace with hash 748017145, now seen corresponding path program 13 times [2022-12-14 11:32:44,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:44,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395001257] [2022-12-14 11:32:44,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:44,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:45,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:45,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:45,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395001257] [2022-12-14 11:32:45,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395001257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:45,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:45,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:45,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127834955] [2022-12-14 11:32:45,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:45,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:45,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:45,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:45,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:45,185 INFO L87 Difference]: Start difference. First operand 25784 states and 54776 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:46,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:46,349 INFO L93 Difference]: Finished difference Result 26591 states and 56462 transitions. [2022-12-14 11:32:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:32:46,350 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:46,387 INFO L225 Difference]: With dead ends: 26591 [2022-12-14 11:32:46,387 INFO L226 Difference]: Without dead ends: 26591 [2022-12-14 11:32:46,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:32:46,387 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 400 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:46,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 321 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:32:46,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26591 states. [2022-12-14 11:32:46,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26591 to 25784. [2022-12-14 11:32:46,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25784 states, 25741 states have (on average 2.1279670564469133) internal successors, (54776), 25783 states have internal predecessors, (54776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25784 states to 25784 states and 54776 transitions. [2022-12-14 11:32:46,705 INFO L78 Accepts]: Start accepts. Automaton has 25784 states and 54776 transitions. Word has length 31 [2022-12-14 11:32:46,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:46,705 INFO L495 AbstractCegarLoop]: Abstraction has 25784 states and 54776 transitions. [2022-12-14 11:32:46,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 25784 states and 54776 transitions. [2022-12-14 11:32:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:46,710 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:46,710 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] [2022-12-14 11:32:46,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-12-14 11:32:46,710 INFO L420 AbstractCegarLoop]: === Iteration 143 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:46,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:46,710 INFO L85 PathProgramCache]: Analyzing trace with hash 941361909, now seen corresponding path program 14 times [2022-12-14 11:32:46,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:46,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318178705] [2022-12-14 11:32:46,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:46,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:47,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:47,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:47,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318178705] [2022-12-14 11:32:47,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318178705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:47,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:47,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:47,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962983904] [2022-12-14 11:32:47,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:47,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:47,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:47,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:47,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:47,064 INFO L87 Difference]: Start difference. First operand 25784 states and 54776 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:48,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:48,494 INFO L93 Difference]: Finished difference Result 26605 states and 56490 transitions. [2022-12-14 11:32:48,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:32:48,495 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:48,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:48,532 INFO L225 Difference]: With dead ends: 26605 [2022-12-14 11:32:48,532 INFO L226 Difference]: Without dead ends: 26605 [2022-12-14 11:32:48,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:32:48,533 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 379 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:48,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 361 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:32:48,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26605 states. [2022-12-14 11:32:48,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26605 to 25785. [2022-12-14 11:32:48,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25785 states, 25742 states have (on average 2.1279620853080567) internal successors, (54778), 25784 states have internal predecessors, (54778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:48,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25785 states to 25785 states and 54778 transitions. [2022-12-14 11:32:48,851 INFO L78 Accepts]: Start accepts. Automaton has 25785 states and 54778 transitions. Word has length 31 [2022-12-14 11:32:48,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:48,851 INFO L495 AbstractCegarLoop]: Abstraction has 25785 states and 54778 transitions. [2022-12-14 11:32:48,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 25785 states and 54778 transitions. [2022-12-14 11:32:48,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:48,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:48,856 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] [2022-12-14 11:32:48,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-12-14 11:32:48,857 INFO L420 AbstractCegarLoop]: === Iteration 144 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:48,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:48,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1063802919, now seen corresponding path program 15 times [2022-12-14 11:32:48,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:48,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604631817] [2022-12-14 11:32:48,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:48,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:49,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:49,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:49,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604631817] [2022-12-14 11:32:49,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604631817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:49,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:49,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:49,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853362365] [2022-12-14 11:32:49,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:49,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:49,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:49,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:49,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:49,226 INFO L87 Difference]: Start difference. First operand 25785 states and 54778 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:50,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:50,584 INFO L93 Difference]: Finished difference Result 26608 states and 56496 transitions. [2022-12-14 11:32:50,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:32:50,584 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:50,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:50,623 INFO L225 Difference]: With dead ends: 26608 [2022-12-14 11:32:50,624 INFO L226 Difference]: Without dead ends: 26608 [2022-12-14 11:32:50,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:32:50,624 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 379 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:50,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 329 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:32:50,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26608 states. [2022-12-14 11:32:50,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26608 to 25784. [2022-12-14 11:32:50,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25784 states, 25741 states have (on average 2.1279670564469133) internal successors, (54776), 25783 states have internal predecessors, (54776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:50,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25784 states to 25784 states and 54776 transitions. [2022-12-14 11:32:50,945 INFO L78 Accepts]: Start accepts. Automaton has 25784 states and 54776 transitions. Word has length 31 [2022-12-14 11:32:50,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:50,945 INFO L495 AbstractCegarLoop]: Abstraction has 25784 states and 54776 transitions. [2022-12-14 11:32:50,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:50,946 INFO L276 IsEmpty]: Start isEmpty. Operand 25784 states and 54776 transitions. [2022-12-14 11:32:50,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:50,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:50,950 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] [2022-12-14 11:32:50,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-12-14 11:32:50,951 INFO L420 AbstractCegarLoop]: === Iteration 145 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:50,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:50,951 INFO L85 PathProgramCache]: Analyzing trace with hash -796010469, now seen corresponding path program 16 times [2022-12-14 11:32:50,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:50,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092692085] [2022-12-14 11:32:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:50,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:51,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:51,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092692085] [2022-12-14 11:32:51,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092692085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:51,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:51,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:51,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644931242] [2022-12-14 11:32:51,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:51,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:51,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:51,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:51,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:51,310 INFO L87 Difference]: Start difference. First operand 25784 states and 54776 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:52,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:52,423 INFO L93 Difference]: Finished difference Result 26605 states and 56490 transitions. [2022-12-14 11:32:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:32:52,424 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:52,460 INFO L225 Difference]: With dead ends: 26605 [2022-12-14 11:32:52,460 INFO L226 Difference]: Without dead ends: 26605 [2022-12-14 11:32:52,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:32:52,461 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 337 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:52,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 331 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:32:52,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26605 states. [2022-12-14 11:32:52,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26605 to 25786. [2022-12-14 11:32:52,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25786 states, 25743 states have (on average 2.127957114555413) internal successors, (54780), 25785 states have internal predecessors, (54780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:52,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25786 states to 25786 states and 54780 transitions. [2022-12-14 11:32:52,800 INFO L78 Accepts]: Start accepts. Automaton has 25786 states and 54780 transitions. Word has length 31 [2022-12-14 11:32:52,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:52,801 INFO L495 AbstractCegarLoop]: Abstraction has 25786 states and 54780 transitions. [2022-12-14 11:32:52,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:52,801 INFO L276 IsEmpty]: Start isEmpty. Operand 25786 states and 54780 transitions. [2022-12-14 11:32:52,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:52,805 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:52,805 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] [2022-12-14 11:32:52,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-12-14 11:32:52,805 INFO L420 AbstractCegarLoop]: === Iteration 146 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:52,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:52,806 INFO L85 PathProgramCache]: Analyzing trace with hash -673569459, now seen corresponding path program 17 times [2022-12-14 11:32:52,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:52,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952600218] [2022-12-14 11:32:52,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:52,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:53,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:53,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952600218] [2022-12-14 11:32:53,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952600218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:53,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:53,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:53,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913413891] [2022-12-14 11:32:53,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:53,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:53,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:53,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:53,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:53,211 INFO L87 Difference]: Start difference. First operand 25786 states and 54780 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:54,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:54,178 INFO L93 Difference]: Finished difference Result 26621 states and 56522 transitions. [2022-12-14 11:32:54,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:32:54,178 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:54,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:54,214 INFO L225 Difference]: With dead ends: 26621 [2022-12-14 11:32:54,215 INFO L226 Difference]: Without dead ends: 26621 [2022-12-14 11:32:54,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:32:54,215 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 340 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:54,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 316 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 11:32:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26621 states. [2022-12-14 11:32:54,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26621 to 25785. [2022-12-14 11:32:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25785 states, 25742 states have (on average 2.1279620853080567) internal successors, (54778), 25784 states have internal predecessors, (54778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:54,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25785 states to 25785 states and 54778 transitions. [2022-12-14 11:32:54,527 INFO L78 Accepts]: Start accepts. Automaton has 25785 states and 54778 transitions. Word has length 31 [2022-12-14 11:32:54,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:54,527 INFO L495 AbstractCegarLoop]: Abstraction has 25785 states and 54778 transitions. [2022-12-14 11:32:54,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:54,527 INFO L276 IsEmpty]: Start isEmpty. Operand 25785 states and 54778 transitions. [2022-12-14 11:32:54,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:54,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:54,532 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] [2022-12-14 11:32:54,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-12-14 11:32:54,532 INFO L420 AbstractCegarLoop]: === Iteration 147 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:54,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:54,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1145159815, now seen corresponding path program 18 times [2022-12-14 11:32:54,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:54,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276313501] [2022-12-14 11:32:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:54,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:54,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:54,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276313501] [2022-12-14 11:32:54,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276313501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:54,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:54,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:54,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403590883] [2022-12-14 11:32:54,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:54,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:54,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:54,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:54,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:54,903 INFO L87 Difference]: Start difference. First operand 25785 states and 54778 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:56,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:56,026 INFO L93 Difference]: Finished difference Result 26625 states and 56530 transitions. [2022-12-14 11:32:56,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:32:56,026 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:56,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:56,064 INFO L225 Difference]: With dead ends: 26625 [2022-12-14 11:32:56,064 INFO L226 Difference]: Without dead ends: 26625 [2022-12-14 11:32:56,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:32:56,064 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 339 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:56,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 292 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:32:56,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26625 states. [2022-12-14 11:32:56,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26625 to 25784. [2022-12-14 11:32:56,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25784 states, 25741 states have (on average 2.1279670564469133) internal successors, (54776), 25783 states have internal predecessors, (54776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:56,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25784 states to 25784 states and 54776 transitions. [2022-12-14 11:32:56,396 INFO L78 Accepts]: Start accepts. Automaton has 25784 states and 54776 transitions. Word has length 31 [2022-12-14 11:32:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:56,396 INFO L495 AbstractCegarLoop]: Abstraction has 25784 states and 54776 transitions. [2022-12-14 11:32:56,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 25784 states and 54776 transitions. [2022-12-14 11:32:56,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:56,401 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:56,401 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] [2022-12-14 11:32:56,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-12-14 11:32:56,401 INFO L420 AbstractCegarLoop]: === Iteration 148 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:56,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:56,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2035327315, now seen corresponding path program 19 times [2022-12-14 11:32:56,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:56,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144840695] [2022-12-14 11:32:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:56,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:56,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:56,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:56,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144840695] [2022-12-14 11:32:56,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144840695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:56,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:56,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:56,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134498272] [2022-12-14 11:32:56,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:56,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:56,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:56,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:56,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:56,733 INFO L87 Difference]: Start difference. First operand 25784 states and 54776 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:57,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:57,738 INFO L93 Difference]: Finished difference Result 26599 states and 56478 transitions. [2022-12-14 11:32:57,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:32:57,738 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:57,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:57,773 INFO L225 Difference]: With dead ends: 26599 [2022-12-14 11:32:57,773 INFO L226 Difference]: Without dead ends: 26599 [2022-12-14 11:32:57,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:32:57,774 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 365 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:57,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 319 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:32:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26599 states. [2022-12-14 11:32:58,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26599 to 25783. [2022-12-14 11:32:58,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25783 states, 25740 states have (on average 2.127972027972028) internal successors, (54774), 25782 states have internal predecessors, (54774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:58,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25783 states to 25783 states and 54774 transitions. [2022-12-14 11:32:58,085 INFO L78 Accepts]: Start accepts. Automaton has 25783 states and 54774 transitions. Word has length 31 [2022-12-14 11:32:58,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:58,085 INFO L495 AbstractCegarLoop]: Abstraction has 25783 states and 54774 transitions. [2022-12-14 11:32:58,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:58,085 INFO L276 IsEmpty]: Start isEmpty. Operand 25783 states and 54774 transitions. [2022-12-14 11:32:58,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:58,090 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:58,090 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] [2022-12-14 11:32:58,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-12-14 11:32:58,090 INFO L420 AbstractCegarLoop]: === Iteration 149 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:58,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:58,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2137198971, now seen corresponding path program 20 times [2022-12-14 11:32:58,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:58,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453952014] [2022-12-14 11:32:58,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:58,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:32:58,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:32:58,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:32:58,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453952014] [2022-12-14 11:32:58,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453952014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:32:58,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:32:58,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:32:58,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383657663] [2022-12-14 11:32:58,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:32:58,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:32:58,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:32:58,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:32:58,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:32:58,441 INFO L87 Difference]: Start difference. First operand 25783 states and 54774 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:59,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:32:59,314 INFO L93 Difference]: Finished difference Result 26615 states and 56510 transitions. [2022-12-14 11:32:59,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:32:59,314 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:32:59,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:32:59,351 INFO L225 Difference]: With dead ends: 26615 [2022-12-14 11:32:59,351 INFO L226 Difference]: Without dead ends: 26615 [2022-12-14 11:32:59,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:32:59,351 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 315 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:32:59,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 292 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 11:32:59,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26615 states. [2022-12-14 11:32:59,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26615 to 25782. [2022-12-14 11:32:59,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25782 states, 25739 states have (on average 2.1279769998834452) internal successors, (54772), 25781 states have internal predecessors, (54772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:59,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25782 states to 25782 states and 54772 transitions. [2022-12-14 11:32:59,675 INFO L78 Accepts]: Start accepts. Automaton has 25782 states and 54772 transitions. Word has length 31 [2022-12-14 11:32:59,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:32:59,675 INFO L495 AbstractCegarLoop]: Abstraction has 25782 states and 54772 transitions. [2022-12-14 11:32:59,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:32:59,675 INFO L276 IsEmpty]: Start isEmpty. Operand 25782 states and 54772 transitions. [2022-12-14 11:32:59,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:32:59,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:32:59,680 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] [2022-12-14 11:32:59,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-12-14 11:32:59,680 INFO L420 AbstractCegarLoop]: === Iteration 150 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:32:59,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:32:59,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1686177969, now seen corresponding path program 21 times [2022-12-14 11:32:59,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:32:59,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244923096] [2022-12-14 11:32:59,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:32:59,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:32:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:00,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:00,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:00,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244923096] [2022-12-14 11:33:00,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244923096] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:00,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:00,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:33:00,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569296832] [2022-12-14 11:33:00,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:00,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:33:00,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:00,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:33:00,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:33:00,082 INFO L87 Difference]: Start difference. First operand 25782 states and 54772 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:01,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:01,203 INFO L93 Difference]: Finished difference Result 26631 states and 56542 transitions. [2022-12-14 11:33:01,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:33:01,204 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:01,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:01,240 INFO L225 Difference]: With dead ends: 26631 [2022-12-14 11:33:01,240 INFO L226 Difference]: Without dead ends: 26631 [2022-12-14 11:33:01,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:33:01,241 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 394 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:01,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 288 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:33:01,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26631 states. [2022-12-14 11:33:01,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26631 to 25781. [2022-12-14 11:33:01,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25781 states, 25738 states have (on average 2.1279819721812108) internal successors, (54770), 25780 states have internal predecessors, (54770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:01,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25781 states to 25781 states and 54770 transitions. [2022-12-14 11:33:01,564 INFO L78 Accepts]: Start accepts. Automaton has 25781 states and 54770 transitions. Word has length 31 [2022-12-14 11:33:01,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:01,564 INFO L495 AbstractCegarLoop]: Abstraction has 25781 states and 54770 transitions. [2022-12-14 11:33:01,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:01,564 INFO L276 IsEmpty]: Start isEmpty. Operand 25781 states and 54770 transitions. [2022-12-14 11:33:01,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:01,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:01,569 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] [2022-12-14 11:33:01,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-12-14 11:33:01,569 INFO L420 AbstractCegarLoop]: === Iteration 151 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:01,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:01,569 INFO L85 PathProgramCache]: Analyzing trace with hash 810653351, now seen corresponding path program 22 times [2022-12-14 11:33:01,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:01,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892676310] [2022-12-14 11:33:01,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:01,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:01,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:01,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:01,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892676310] [2022-12-14 11:33:01,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892676310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:01,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:01,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:33:01,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270433997] [2022-12-14 11:33:01,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:01,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:33:01,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:01,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:33:01,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:33:01,989 INFO L87 Difference]: Start difference. First operand 25781 states and 54770 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:02,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:02,981 INFO L93 Difference]: Finished difference Result 26630 states and 56540 transitions. [2022-12-14 11:33:02,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:33:02,982 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:02,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:03,018 INFO L225 Difference]: With dead ends: 26630 [2022-12-14 11:33:03,018 INFO L226 Difference]: Without dead ends: 26630 [2022-12-14 11:33:03,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:33:03,019 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 396 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:03,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 276 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 11:33:03,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26630 states. [2022-12-14 11:33:03,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26630 to 25772. [2022-12-14 11:33:03,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25772 states, 25729 states have (on average 2.128026740254188) internal successors, (54752), 25771 states have internal predecessors, (54752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:03,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25772 states to 25772 states and 54752 transitions. [2022-12-14 11:33:03,332 INFO L78 Accepts]: Start accepts. Automaton has 25772 states and 54752 transitions. Word has length 31 [2022-12-14 11:33:03,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:03,332 INFO L495 AbstractCegarLoop]: Abstraction has 25772 states and 54752 transitions. [2022-12-14 11:33:03,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:03,332 INFO L276 IsEmpty]: Start isEmpty. Operand 25772 states and 54752 transitions. [2022-12-14 11:33:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:03,337 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:03,337 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] [2022-12-14 11:33:03,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-12-14 11:33:03,337 INFO L420 AbstractCegarLoop]: === Iteration 152 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:03,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:03,338 INFO L85 PathProgramCache]: Analyzing trace with hash 323895664, now seen corresponding path program 47 times [2022-12-14 11:33:03,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:03,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301248565] [2022-12-14 11:33:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:03,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:04,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:04,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301248565] [2022-12-14 11:33:04,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301248565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:04,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:04,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:33:04,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896816969] [2022-12-14 11:33:04,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:04,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:33:04,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:04,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:33:04,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:33:04,346 INFO L87 Difference]: Start difference. First operand 25772 states and 54752 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:08,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:08,924 INFO L93 Difference]: Finished difference Result 35231 states and 74342 transitions. [2022-12-14 11:33:08,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 11:33:08,924 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:08,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:08,973 INFO L225 Difference]: With dead ends: 35231 [2022-12-14 11:33:08,973 INFO L226 Difference]: Without dead ends: 35231 [2022-12-14 11:33:08,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=265, Invalid=727, Unknown=0, NotChecked=0, Total=992 [2022-12-14 11:33:08,973 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 517 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 4211 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 4424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 4211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:08,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 538 Invalid, 4424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 4211 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 11:33:09,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35231 states. [2022-12-14 11:33:09,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35231 to 26712. [2022-12-14 11:33:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26712 states, 26669 states have (on average 2.128613746297199) internal successors, (56768), 26711 states have internal predecessors, (56768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:09,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26712 states to 26712 states and 56768 transitions. [2022-12-14 11:33:09,381 INFO L78 Accepts]: Start accepts. Automaton has 26712 states and 56768 transitions. Word has length 31 [2022-12-14 11:33:09,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:09,382 INFO L495 AbstractCegarLoop]: Abstraction has 26712 states and 56768 transitions. [2022-12-14 11:33:09,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:09,382 INFO L276 IsEmpty]: Start isEmpty. Operand 26712 states and 56768 transitions. [2022-12-14 11:33:09,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:09,386 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:09,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:33:09,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-12-14 11:33:09,387 INFO L420 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:09,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:09,388 INFO L85 PathProgramCache]: Analyzing trace with hash 633968455, now seen corresponding path program 33 times [2022-12-14 11:33:09,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:09,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794486887] [2022-12-14 11:33:09,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:09,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:10,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:10,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794486887] [2022-12-14 11:33:10,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794486887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:10,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:10,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:33:10,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535492177] [2022-12-14 11:33:10,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:10,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 11:33:10,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:10,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 11:33:10,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:33:10,437 INFO L87 Difference]: Start difference. First operand 26712 states and 56768 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:12,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:12,852 INFO L93 Difference]: Finished difference Result 31196 states and 65972 transitions. [2022-12-14 11:33:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 11:33:12,852 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:12,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:12,894 INFO L225 Difference]: With dead ends: 31196 [2022-12-14 11:33:12,894 INFO L226 Difference]: Without dead ends: 31196 [2022-12-14 11:33:12,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:33:12,895 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 616 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 3547 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 3571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:12,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 620 Invalid, 3571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3547 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 11:33:12,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31196 states. [2022-12-14 11:33:13,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31196 to 28013. [2022-12-14 11:33:13,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28013 states, 27970 states have (on average 2.1310690025026813) internal successors, (59606), 28012 states have internal predecessors, (59606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:13,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28013 states to 28013 states and 59606 transitions. [2022-12-14 11:33:13,262 INFO L78 Accepts]: Start accepts. Automaton has 28013 states and 59606 transitions. Word has length 31 [2022-12-14 11:33:13,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:13,262 INFO L495 AbstractCegarLoop]: Abstraction has 28013 states and 59606 transitions. [2022-12-14 11:33:13,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:13,263 INFO L276 IsEmpty]: Start isEmpty. Operand 28013 states and 59606 transitions. [2022-12-14 11:33:13,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:13,267 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:13,267 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] [2022-12-14 11:33:13,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-12-14 11:33:13,268 INFO L420 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:13,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:13,268 INFO L85 PathProgramCache]: Analyzing trace with hash 494239438, now seen corresponding path program 43 times [2022-12-14 11:33:13,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:13,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202768980] [2022-12-14 11:33:13,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:13,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:15,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:15,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202768980] [2022-12-14 11:33:15,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202768980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:15,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:15,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:33:15,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752612614] [2022-12-14 11:33:15,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:15,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:33:15,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:15,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:33:15,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:33:15,913 INFO L87 Difference]: Start difference. First operand 28013 states and 59606 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:17,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:17,498 INFO L93 Difference]: Finished difference Result 40917 states and 86098 transitions. [2022-12-14 11:33:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:33:17,499 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:17,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:17,563 INFO L225 Difference]: With dead ends: 40917 [2022-12-14 11:33:17,563 INFO L226 Difference]: Without dead ends: 40917 [2022-12-14 11:33:17,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:33:17,564 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 771 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:17,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 573 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:33:17,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40917 states. [2022-12-14 11:33:18,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40917 to 29768. [2022-12-14 11:33:18,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29768 states, 29725 states have (on average 2.1324137931034484) internal successors, (63386), 29767 states have internal predecessors, (63386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:18,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29768 states to 29768 states and 63386 transitions. [2022-12-14 11:33:18,115 INFO L78 Accepts]: Start accepts. Automaton has 29768 states and 63386 transitions. Word has length 31 [2022-12-14 11:33:18,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:18,115 INFO L495 AbstractCegarLoop]: Abstraction has 29768 states and 63386 transitions. [2022-12-14 11:33:18,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:18,115 INFO L276 IsEmpty]: Start isEmpty. Operand 29768 states and 63386 transitions. [2022-12-14 11:33:18,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:18,120 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:18,120 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] [2022-12-14 11:33:18,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-12-14 11:33:18,120 INFO L420 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:18,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:18,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1652793994, now seen corresponding path program 44 times [2022-12-14 11:33:18,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:18,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064632250] [2022-12-14 11:33:18,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:18,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:20,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:20,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064632250] [2022-12-14 11:33:20,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064632250] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:20,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:20,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:33:20,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115451559] [2022-12-14 11:33:20,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:20,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:33:20,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:20,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:33:20,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:33:20,577 INFO L87 Difference]: Start difference. First operand 29768 states and 63386 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:21,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:21,874 INFO L93 Difference]: Finished difference Result 40913 states and 86080 transitions. [2022-12-14 11:33:21,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:33:21,875 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:21,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:21,935 INFO L225 Difference]: With dead ends: 40913 [2022-12-14 11:33:21,935 INFO L226 Difference]: Without dead ends: 40913 [2022-12-14 11:33:21,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:33:21,935 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 641 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:21,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 567 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:33:21,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40913 states. [2022-12-14 11:33:22,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40913 to 29736. [2022-12-14 11:33:22,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29736 states, 29693 states have (on average 2.1325228168255146) internal successors, (63321), 29735 states have internal predecessors, (63321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29736 states to 29736 states and 63321 transitions. [2022-12-14 11:33:22,386 INFO L78 Accepts]: Start accepts. Automaton has 29736 states and 63321 transitions. Word has length 31 [2022-12-14 11:33:22,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:22,386 INFO L495 AbstractCegarLoop]: Abstraction has 29736 states and 63321 transitions. [2022-12-14 11:33:22,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:22,386 INFO L276 IsEmpty]: Start isEmpty. Operand 29736 states and 63321 transitions. [2022-12-14 11:33:22,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:22,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:22,391 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] [2022-12-14 11:33:22,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-12-14 11:33:22,391 INFO L420 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:22,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:22,391 INFO L85 PathProgramCache]: Analyzing trace with hash -290060466, now seen corresponding path program 45 times [2022-12-14 11:33:22,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:22,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797253766] [2022-12-14 11:33:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:22,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:23,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:23,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797253766] [2022-12-14 11:33:23,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797253766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:23,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:23,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:33:23,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144958484] [2022-12-14 11:33:23,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:23,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:33:23,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:23,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:33:23,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:33:23,871 INFO L87 Difference]: Start difference. First operand 29736 states and 63321 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:25,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:25,384 INFO L93 Difference]: Finished difference Result 41331 states and 86922 transitions. [2022-12-14 11:33:25,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:33:25,384 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:25,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:25,445 INFO L225 Difference]: With dead ends: 41331 [2022-12-14 11:33:25,445 INFO L226 Difference]: Without dead ends: 41331 [2022-12-14 11:33:25,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:33:25,445 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 711 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:25,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 573 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:33:25,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41331 states. [2022-12-14 11:33:25,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41331 to 29704. [2022-12-14 11:33:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29704 states, 29661 states have (on average 2.1326320757897577) internal successors, (63256), 29703 states have internal predecessors, (63256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:25,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29704 states to 29704 states and 63256 transitions. [2022-12-14 11:33:25,907 INFO L78 Accepts]: Start accepts. Automaton has 29704 states and 63256 transitions. Word has length 31 [2022-12-14 11:33:25,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:25,907 INFO L495 AbstractCegarLoop]: Abstraction has 29704 states and 63256 transitions. [2022-12-14 11:33:25,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:25,907 INFO L276 IsEmpty]: Start isEmpty. Operand 29704 states and 63256 transitions. [2022-12-14 11:33:25,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:25,912 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:25,912 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] [2022-12-14 11:33:25,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-12-14 11:33:25,912 INFO L420 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash -481830324, now seen corresponding path program 46 times [2022-12-14 11:33:25,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:25,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047697453] [2022-12-14 11:33:25,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:25,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:27,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:27,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047697453] [2022-12-14 11:33:27,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047697453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:27,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:27,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:33:27,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879307355] [2022-12-14 11:33:27,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:27,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:33:27,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:27,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:33:27,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:33:27,093 INFO L87 Difference]: Start difference. First operand 29704 states and 63256 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:29,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:29,246 INFO L93 Difference]: Finished difference Result 35397 states and 74959 transitions. [2022-12-14 11:33:29,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 11:33:29,247 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:29,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:29,297 INFO L225 Difference]: With dead ends: 35397 [2022-12-14 11:33:29,297 INFO L226 Difference]: Without dead ends: 35397 [2022-12-14 11:33:29,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:33:29,297 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 530 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:29,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 421 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:33:29,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35397 states. [2022-12-14 11:33:29,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35397 to 31211. [2022-12-14 11:33:29,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31211 states, 31168 states have (on average 2.133791067761807) internal successors, (66506), 31210 states have internal predecessors, (66506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:29,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31211 states to 31211 states and 66506 transitions. [2022-12-14 11:33:29,715 INFO L78 Accepts]: Start accepts. Automaton has 31211 states and 66506 transitions. Word has length 31 [2022-12-14 11:33:29,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:29,715 INFO L495 AbstractCegarLoop]: Abstraction has 31211 states and 66506 transitions. [2022-12-14 11:33:29,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:29,716 INFO L276 IsEmpty]: Start isEmpty. Operand 31211 states and 66506 transitions. [2022-12-14 11:33:29,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:29,721 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:29,721 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] [2022-12-14 11:33:29,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-12-14 11:33:29,721 INFO L420 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:29,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1485347514, now seen corresponding path program 47 times [2022-12-14 11:33:29,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:29,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521179035] [2022-12-14 11:33:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:29,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:30,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:30,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:30,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521179035] [2022-12-14 11:33:30,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521179035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:30,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:30,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:33:30,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139475647] [2022-12-14 11:33:30,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:30,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:33:30,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:30,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:33:30,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:33:30,394 INFO L87 Difference]: Start difference. First operand 31211 states and 66506 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:31,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:31,643 INFO L93 Difference]: Finished difference Result 41298 states and 87100 transitions. [2022-12-14 11:33:31,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:33:31,643 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:31,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:31,700 INFO L225 Difference]: With dead ends: 41298 [2022-12-14 11:33:31,701 INFO L226 Difference]: Without dead ends: 41298 [2022-12-14 11:33:31,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:33:31,701 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 699 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:31,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 570 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:33:31,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41298 states. [2022-12-14 11:33:32,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41298 to 28970. [2022-12-14 11:33:32,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28970 states, 28927 states have (on average 2.1324713935077955) internal successors, (61686), 28969 states have internal predecessors, (61686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:32,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28970 states to 28970 states and 61686 transitions. [2022-12-14 11:33:32,135 INFO L78 Accepts]: Start accepts. Automaton has 28970 states and 61686 transitions. Word has length 31 [2022-12-14 11:33:32,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:32,135 INFO L495 AbstractCegarLoop]: Abstraction has 28970 states and 61686 transitions. [2022-12-14 11:33:32,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:32,135 INFO L276 IsEmpty]: Start isEmpty. Operand 28970 states and 61686 transitions. [2022-12-14 11:33:32,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:32,140 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:32,140 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] [2022-12-14 11:33:32,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-12-14 11:33:32,141 INFO L420 AbstractCegarLoop]: === Iteration 159 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:32,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:32,141 INFO L85 PathProgramCache]: Analyzing trace with hash -272381499, now seen corresponding path program 23 times [2022-12-14 11:33:32,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:32,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193764093] [2022-12-14 11:33:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:32,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:32,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:32,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193764093] [2022-12-14 11:33:32,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193764093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:32,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:32,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:33:32,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374030020] [2022-12-14 11:33:32,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:32,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:33:32,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:32,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:33:32,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:33:32,480 INFO L87 Difference]: Start difference. First operand 28970 states and 61686 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:33,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:33,689 INFO L93 Difference]: Finished difference Result 38942 states and 82187 transitions. [2022-12-14 11:33:33,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:33:33,689 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:33,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:33,745 INFO L225 Difference]: With dead ends: 38942 [2022-12-14 11:33:33,745 INFO L226 Difference]: Without dead ends: 38942 [2022-12-14 11:33:33,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:33:33,745 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 582 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:33,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 569 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:33:33,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38942 states. [2022-12-14 11:33:34,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38942 to 26831. [2022-12-14 11:33:34,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26831 states, 26788 states have (on average 2.1258772584739436) internal successors, (56948), 26830 states have internal predecessors, (56948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:34,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26831 states to 26831 states and 56948 transitions. [2022-12-14 11:33:34,161 INFO L78 Accepts]: Start accepts. Automaton has 26831 states and 56948 transitions. Word has length 31 [2022-12-14 11:33:34,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:34,161 INFO L495 AbstractCegarLoop]: Abstraction has 26831 states and 56948 transitions. [2022-12-14 11:33:34,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:34,161 INFO L276 IsEmpty]: Start isEmpty. Operand 26831 states and 56948 transitions. [2022-12-14 11:33:34,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:34,166 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:34,166 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] [2022-12-14 11:33:34,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-12-14 11:33:34,166 INFO L420 AbstractCegarLoop]: === Iteration 160 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:34,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:34,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1365776837, now seen corresponding path program 24 times [2022-12-14 11:33:34,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:34,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963688526] [2022-12-14 11:33:34,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:34,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:34,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:34,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:34,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963688526] [2022-12-14 11:33:34,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963688526] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:34,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:34,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:33:34,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544106450] [2022-12-14 11:33:34,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:34,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:33:34,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:34,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:33:34,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:33:34,538 INFO L87 Difference]: Start difference. First operand 26831 states and 56948 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:35,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:35,806 INFO L93 Difference]: Finished difference Result 33957 states and 71584 transitions. [2022-12-14 11:33:35,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:33:35,807 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:35,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:35,854 INFO L225 Difference]: With dead ends: 33957 [2022-12-14 11:33:35,854 INFO L226 Difference]: Without dead ends: 33957 [2022-12-14 11:33:35,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:33:35,854 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 564 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:35,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 608 Invalid, 1825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:33:35,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33957 states. [2022-12-14 11:33:36,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33957 to 26831. [2022-12-14 11:33:36,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26831 states, 26788 states have (on average 2.1258772584739436) internal successors, (56948), 26830 states have internal predecessors, (56948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:36,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26831 states to 26831 states and 56948 transitions. [2022-12-14 11:33:36,220 INFO L78 Accepts]: Start accepts. Automaton has 26831 states and 56948 transitions. Word has length 31 [2022-12-14 11:33:36,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:36,220 INFO L495 AbstractCegarLoop]: Abstraction has 26831 states and 56948 transitions. [2022-12-14 11:33:36,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:36,220 INFO L276 IsEmpty]: Start isEmpty. Operand 26831 states and 56948 transitions. [2022-12-14 11:33:36,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:36,225 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:36,225 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] [2022-12-14 11:33:36,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-12-14 11:33:36,225 INFO L420 AbstractCegarLoop]: === Iteration 161 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:36,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:36,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1488217847, now seen corresponding path program 25 times [2022-12-14 11:33:36,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:36,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841528631] [2022-12-14 11:33:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:36,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:36,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:36,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:36,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841528631] [2022-12-14 11:33:36,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841528631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:36,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:36,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:33:36,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834244188] [2022-12-14 11:33:36,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:36,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:33:36,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:36,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:33:36,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:33:36,634 INFO L87 Difference]: Start difference. First operand 26831 states and 56948 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:38,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:38,226 INFO L93 Difference]: Finished difference Result 33989 states and 71648 transitions. [2022-12-14 11:33:38,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:33:38,227 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:38,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:38,273 INFO L225 Difference]: With dead ends: 33989 [2022-12-14 11:33:38,273 INFO L226 Difference]: Without dead ends: 33989 [2022-12-14 11:33:38,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:33:38,274 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 469 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 2396 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:38,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 578 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2396 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:33:38,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33989 states. [2022-12-14 11:33:38,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33989 to 26831. [2022-12-14 11:33:38,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26831 states, 26788 states have (on average 2.1258772584739436) internal successors, (56948), 26830 states have internal predecessors, (56948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26831 states to 26831 states and 56948 transitions. [2022-12-14 11:33:38,647 INFO L78 Accepts]: Start accepts. Automaton has 26831 states and 56948 transitions. Word has length 31 [2022-12-14 11:33:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:38,647 INFO L495 AbstractCegarLoop]: Abstraction has 26831 states and 56948 transitions. [2022-12-14 11:33:38,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand 26831 states and 56948 transitions. [2022-12-14 11:33:38,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:38,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:38,652 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] [2022-12-14 11:33:38,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-12-14 11:33:38,653 INFO L420 AbstractCegarLoop]: === Iteration 162 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:38,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:38,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1016627491, now seen corresponding path program 26 times [2022-12-14 11:33:38,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:38,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597021837] [2022-12-14 11:33:38,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:38,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:39,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:39,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597021837] [2022-12-14 11:33:39,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597021837] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:39,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:39,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:33:39,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995748279] [2022-12-14 11:33:39,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:39,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:33:39,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:33:39,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:33:39,036 INFO L87 Difference]: Start difference. First operand 26831 states and 56948 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:40,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:40,457 INFO L93 Difference]: Finished difference Result 34037 states and 71744 transitions. [2022-12-14 11:33:40,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:33:40,457 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:40,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:40,504 INFO L225 Difference]: With dead ends: 34037 [2022-12-14 11:33:40,504 INFO L226 Difference]: Without dead ends: 34037 [2022-12-14 11:33:40,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:33:40,504 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 527 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 2132 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:40,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 576 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2132 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:33:40,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34037 states. [2022-12-14 11:33:40,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34037 to 26831. [2022-12-14 11:33:40,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26831 states, 26788 states have (on average 2.1258772584739436) internal successors, (56948), 26830 states have internal predecessors, (56948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:40,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26831 states to 26831 states and 56948 transitions. [2022-12-14 11:33:40,877 INFO L78 Accepts]: Start accepts. Automaton has 26831 states and 56948 transitions. Word has length 31 [2022-12-14 11:33:40,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:40,878 INFO L495 AbstractCegarLoop]: Abstraction has 26831 states and 56948 transitions. [2022-12-14 11:33:40,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:40,878 INFO L276 IsEmpty]: Start isEmpty. Operand 26831 states and 56948 transitions. [2022-12-14 11:33:40,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:40,906 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:40,906 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] [2022-12-14 11:33:40,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-12-14 11:33:40,906 INFO L420 AbstractCegarLoop]: === Iteration 163 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:40,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:40,907 INFO L85 PathProgramCache]: Analyzing trace with hash 141102873, now seen corresponding path program 27 times [2022-12-14 11:33:40,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:40,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833421053] [2022-12-14 11:33:40,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:40,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:41,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:41,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833421053] [2022-12-14 11:33:41,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833421053] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:41,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:41,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:33:41,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493457451] [2022-12-14 11:33:41,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:41,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:33:41,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:41,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:33:41,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:33:41,288 INFO L87 Difference]: Start difference. First operand 26831 states and 56948 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:42,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:42,469 INFO L93 Difference]: Finished difference Result 34061 states and 71792 transitions. [2022-12-14 11:33:42,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:33:42,470 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:42,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:42,520 INFO L225 Difference]: With dead ends: 34061 [2022-12-14 11:33:42,520 INFO L226 Difference]: Without dead ends: 34061 [2022-12-14 11:33:42,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:33:42,520 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 458 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:42,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 545 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:33:42,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34061 states. [2022-12-14 11:33:42,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34061 to 26711. [2022-12-14 11:33:42,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26711 states, 26668 states have (on average 2.1230313484325785) internal successors, (56617), 26710 states have internal predecessors, (56617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:42,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26711 states to 26711 states and 56617 transitions. [2022-12-14 11:33:42,910 INFO L78 Accepts]: Start accepts. Automaton has 26711 states and 56617 transitions. Word has length 31 [2022-12-14 11:33:42,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:42,910 INFO L495 AbstractCegarLoop]: Abstraction has 26711 states and 56617 transitions. [2022-12-14 11:33:42,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:42,910 INFO L276 IsEmpty]: Start isEmpty. Operand 26711 states and 56617 transitions. [2022-12-14 11:33:42,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:42,915 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:42,915 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] [2022-12-14 11:33:42,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-12-14 11:33:42,915 INFO L420 AbstractCegarLoop]: === Iteration 164 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:42,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:42,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1108119352, now seen corresponding path program 48 times [2022-12-14 11:33:42,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:42,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913775565] [2022-12-14 11:33:42,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:42,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:43,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:43,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:43,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913775565] [2022-12-14 11:33:43,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913775565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:43,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:43,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:33:43,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876248965] [2022-12-14 11:33:43,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:43,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:33:43,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:43,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:33:43,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:33:43,834 INFO L87 Difference]: Start difference. First operand 26711 states and 56617 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:47,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:47,339 INFO L93 Difference]: Finished difference Result 37591 states and 79272 transitions. [2022-12-14 11:33:47,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 11:33:47,339 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:47,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:47,395 INFO L225 Difference]: With dead ends: 37591 [2022-12-14 11:33:47,395 INFO L226 Difference]: Without dead ends: 37591 [2022-12-14 11:33:47,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=265, Invalid=727, Unknown=0, NotChecked=0, Total=992 [2022-12-14 11:33:47,396 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 535 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 3714 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 3957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 3714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:47,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 486 Invalid, 3957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 3714 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 11:33:47,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37591 states. [2022-12-14 11:33:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37591 to 27719. [2022-12-14 11:33:47,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27719 states, 27676 states have (on average 2.1216216216216215) internal successors, (58718), 27718 states have internal predecessors, (58718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:47,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27719 states to 27719 states and 58718 transitions. [2022-12-14 11:33:47,813 INFO L78 Accepts]: Start accepts. Automaton has 27719 states and 58718 transitions. Word has length 31 [2022-12-14 11:33:47,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:47,813 INFO L495 AbstractCegarLoop]: Abstraction has 27719 states and 58718 transitions. [2022-12-14 11:33:47,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:47,813 INFO L276 IsEmpty]: Start isEmpty. Operand 27719 states and 58718 transitions. [2022-12-14 11:33:47,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:47,818 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:47,818 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] [2022-12-14 11:33:47,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-12-14 11:33:47,818 INFO L420 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:47,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:47,819 INFO L85 PathProgramCache]: Analyzing trace with hash -798046561, now seen corresponding path program 34 times [2022-12-14 11:33:47,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:47,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136377769] [2022-12-14 11:33:47,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:47,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:48,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:48,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:48,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136377769] [2022-12-14 11:33:48,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136377769] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:48,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:48,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:33:48,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706874498] [2022-12-14 11:33:48,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:48,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 11:33:48,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:48,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 11:33:48,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:33:48,917 INFO L87 Difference]: Start difference. First operand 27719 states and 58718 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:51,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:51,226 INFO L93 Difference]: Finished difference Result 31525 states and 66511 transitions. [2022-12-14 11:33:51,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 11:33:51,226 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:51,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:51,270 INFO L225 Difference]: With dead ends: 31525 [2022-12-14 11:33:51,270 INFO L226 Difference]: Without dead ends: 31525 [2022-12-14 11:33:51,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:33:51,270 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 551 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 3876 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 3898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:51,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 675 Invalid, 3898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3876 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 11:33:51,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31525 states. [2022-12-14 11:33:51,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31525 to 28592. [2022-12-14 11:33:51,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28592 states, 28549 states have (on average 2.1250831903043887) internal successors, (60669), 28591 states have internal predecessors, (60669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:51,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28592 states to 28592 states and 60669 transitions. [2022-12-14 11:33:51,647 INFO L78 Accepts]: Start accepts. Automaton has 28592 states and 60669 transitions. Word has length 31 [2022-12-14 11:33:51,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:51,647 INFO L495 AbstractCegarLoop]: Abstraction has 28592 states and 60669 transitions. [2022-12-14 11:33:51,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:51,647 INFO L276 IsEmpty]: Start isEmpty. Operand 28592 states and 60669 transitions. [2022-12-14 11:33:51,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:51,653 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:51,653 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] [2022-12-14 11:33:51,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-12-14 11:33:51,653 INFO L420 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:51,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:51,653 INFO L85 PathProgramCache]: Analyzing trace with hash -937775578, now seen corresponding path program 48 times [2022-12-14 11:33:51,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:51,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830464943] [2022-12-14 11:33:51,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:51,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:53,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:53,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830464943] [2022-12-14 11:33:53,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830464943] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:53,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:53,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 11:33:53,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601058383] [2022-12-14 11:33:53,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:53,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 11:33:53,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:53,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 11:33:53,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:33:53,931 INFO L87 Difference]: Start difference. First operand 28592 states and 60669 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:55,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:33:55,561 INFO L93 Difference]: Finished difference Result 42203 states and 88816 transitions. [2022-12-14 11:33:55,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:33:55,562 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:33:55,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:33:55,623 INFO L225 Difference]: With dead ends: 42203 [2022-12-14 11:33:55,623 INFO L226 Difference]: Without dead ends: 42203 [2022-12-14 11:33:55,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:33:55,624 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 663 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:33:55,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 503 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:33:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42203 states. [2022-12-14 11:33:56,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42203 to 28981. [2022-12-14 11:33:56,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28981 states, 28942 states have (on average 2.12259000760141) internal successors, (61432), 28980 states have internal predecessors, (61432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:56,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28981 states to 28981 states and 61432 transitions. [2022-12-14 11:33:56,074 INFO L78 Accepts]: Start accepts. Automaton has 28981 states and 61432 transitions. Word has length 31 [2022-12-14 11:33:56,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:33:56,074 INFO L495 AbstractCegarLoop]: Abstraction has 28981 states and 61432 transitions. [2022-12-14 11:33:56,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:33:56,074 INFO L276 IsEmpty]: Start isEmpty. Operand 28981 states and 61432 transitions. [2022-12-14 11:33:56,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:33:56,080 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:56,080 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] [2022-12-14 11:33:56,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-12-14 11:33:56,080 INFO L420 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:33:56,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:56,083 INFO L85 PathProgramCache]: Analyzing trace with hash 220778978, now seen corresponding path program 49 times [2022-12-14 11:33:56,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:56,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619868444] [2022-12-14 11:33:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:56,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:33:58,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:58,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619868444] [2022-12-14 11:33:58,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619868444] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:33:58,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:33:58,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:33:58,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144442189] [2022-12-14 11:33:58,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:33:58,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:33:58,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:33:58,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:33:58,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:33:58,289 INFO L87 Difference]: Start difference. First operand 28981 states and 61432 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:00,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:00,373 INFO L93 Difference]: Finished difference Result 42399 states and 89202 transitions. [2022-12-14 11:34:00,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:34:00,374 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:34:00,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:00,435 INFO L225 Difference]: With dead ends: 42399 [2022-12-14 11:34:00,435 INFO L226 Difference]: Without dead ends: 42399 [2022-12-14 11:34:00,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:34:00,435 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 672 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 3186 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 3365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 3186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:00,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 517 Invalid, 3365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 3186 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 11:34:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42399 states. [2022-12-14 11:34:00,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42399 to 28961. [2022-12-14 11:34:00,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28961 states, 28922 states have (on average 2.122743931954913) internal successors, (61394), 28960 states have internal predecessors, (61394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28961 states to 28961 states and 61394 transitions. [2022-12-14 11:34:00,877 INFO L78 Accepts]: Start accepts. Automaton has 28961 states and 61394 transitions. Word has length 31 [2022-12-14 11:34:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:00,877 INFO L495 AbstractCegarLoop]: Abstraction has 28961 states and 61394 transitions. [2022-12-14 11:34:00,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 28961 states and 61394 transitions. [2022-12-14 11:34:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:34:00,884 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:00,884 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] [2022-12-14 11:34:00,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-12-14 11:34:00,884 INFO L420 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:34:00,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:00,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1722075482, now seen corresponding path program 50 times [2022-12-14 11:34:00,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:00,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366437506] [2022-12-14 11:34:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:00,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:02,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:34:02,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:02,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366437506] [2022-12-14 11:34:02,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366437506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:02,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:02,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:34:02,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816316776] [2022-12-14 11:34:02,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:02,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:34:02,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:02,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:34:02,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:34:02,675 INFO L87 Difference]: Start difference. First operand 28961 states and 61394 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:04,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:04,517 INFO L93 Difference]: Finished difference Result 43017 states and 90448 transitions. [2022-12-14 11:34:04,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:34:04,517 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:34:04,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:04,579 INFO L225 Difference]: With dead ends: 43017 [2022-12-14 11:34:04,579 INFO L226 Difference]: Without dead ends: 43017 [2022-12-14 11:34:04,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:34:04,579 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 641 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 2258 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 2478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 2258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:04,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 504 Invalid, 2478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 2258 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:34:04,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43017 states. [2022-12-14 11:34:04,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43017 to 28941. [2022-12-14 11:34:04,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28941 states, 28902 states have (on average 2.122898069337762) internal successors, (61356), 28940 states have internal predecessors, (61356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:05,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28941 states to 28941 states and 61356 transitions. [2022-12-14 11:34:05,024 INFO L78 Accepts]: Start accepts. Automaton has 28941 states and 61356 transitions. Word has length 31 [2022-12-14 11:34:05,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:05,024 INFO L495 AbstractCegarLoop]: Abstraction has 28941 states and 61356 transitions. [2022-12-14 11:34:05,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 28941 states and 61356 transitions. [2022-12-14 11:34:05,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:34:05,030 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:05,030 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] [2022-12-14 11:34:05,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-12-14 11:34:05,030 INFO L420 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:34:05,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:05,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1913845340, now seen corresponding path program 51 times [2022-12-14 11:34:05,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:05,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94396657] [2022-12-14 11:34:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:05,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:34:06,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:06,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94396657] [2022-12-14 11:34:06,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94396657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:06,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:06,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:34:06,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314694092] [2022-12-14 11:34:06,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:06,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:34:06,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:06,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:34:06,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:34:06,165 INFO L87 Difference]: Start difference. First operand 28941 states and 61356 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:07,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:07,633 INFO L93 Difference]: Finished difference Result 41778 states and 87947 transitions. [2022-12-14 11:34:07,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:34:07,634 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:34:07,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:07,694 INFO L225 Difference]: With dead ends: 41778 [2022-12-14 11:34:07,695 INFO L226 Difference]: Without dead ends: 41778 [2022-12-14 11:34:07,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:34:07,695 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 718 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:07,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 502 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:34:07,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41778 states. [2022-12-14 11:34:08,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41778 to 28576. [2022-12-14 11:34:08,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28576 states, 28537 states have (on average 2.123558888460595) internal successors, (60600), 28575 states have internal predecessors, (60600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:08,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28576 states to 28576 states and 60600 transitions. [2022-12-14 11:34:08,166 INFO L78 Accepts]: Start accepts. Automaton has 28576 states and 60600 transitions. Word has length 31 [2022-12-14 11:34:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:08,166 INFO L495 AbstractCegarLoop]: Abstraction has 28576 states and 60600 transitions. [2022-12-14 11:34:08,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:08,166 INFO L276 IsEmpty]: Start isEmpty. Operand 28576 states and 60600 transitions. [2022-12-14 11:34:08,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:34:08,172 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:08,172 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] [2022-12-14 11:34:08,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-12-14 11:34:08,172 INFO L420 AbstractCegarLoop]: === Iteration 170 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:34:08,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:08,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1704396515, now seen corresponding path program 28 times [2022-12-14 11:34:08,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:08,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497683700] [2022-12-14 11:34:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:08,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:08,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:34:08,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:08,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497683700] [2022-12-14 11:34:08,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497683700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:08,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:08,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 11:34:08,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16552651] [2022-12-14 11:34:08,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:08,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:34:08,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:08,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:34:08,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:34:08,555 INFO L87 Difference]: Start difference. First operand 28576 states and 60600 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:09,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:09,976 INFO L93 Difference]: Finished difference Result 37745 states and 79650 transitions. [2022-12-14 11:34:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:34:09,977 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:34:09,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:10,032 INFO L225 Difference]: With dead ends: 37745 [2022-12-14 11:34:10,032 INFO L226 Difference]: Without dead ends: 37745 [2022-12-14 11:34:10,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:34:10,032 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 587 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:10,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 491 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:34:10,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37745 states. [2022-12-14 11:34:10,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37745 to 25695. [2022-12-14 11:34:10,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25695 states, 25658 states have (on average 2.1190661781900384) internal successors, (54371), 25694 states have internal predecessors, (54371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:10,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25695 states to 25695 states and 54371 transitions. [2022-12-14 11:34:10,438 INFO L78 Accepts]: Start accepts. Automaton has 25695 states and 54371 transitions. Word has length 31 [2022-12-14 11:34:10,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:10,438 INFO L495 AbstractCegarLoop]: Abstraction has 25695 states and 54371 transitions. [2022-12-14 11:34:10,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 25695 states and 54371 transitions. [2022-12-14 11:34:10,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:34:10,443 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:10,443 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] [2022-12-14 11:34:10,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-12-14 11:34:10,443 INFO L420 AbstractCegarLoop]: === Iteration 171 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:34:10,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:10,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1577086130, now seen corresponding path program 49 times [2022-12-14 11:34:10,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:10,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327732847] [2022-12-14 11:34:10,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:10,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:34:11,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:11,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327732847] [2022-12-14 11:34:11,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327732847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:11,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:11,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 11:34:11,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863024834] [2022-12-14 11:34:11,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:11,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:34:11,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:11,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:34:11,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:34:11,307 INFO L87 Difference]: Start difference. First operand 25695 states and 54371 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:15,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:15,362 INFO L93 Difference]: Finished difference Result 35687 states and 75048 transitions. [2022-12-14 11:34:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 11:34:15,363 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-12-14 11:34:15,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:15,414 INFO L225 Difference]: With dead ends: 35687 [2022-12-14 11:34:15,414 INFO L226 Difference]: Without dead ends: 35687 [2022-12-14 11:34:15,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=256, Invalid=736, Unknown=0, NotChecked=0, Total=992 [2022-12-14 11:34:15,414 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 536 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 4274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:15,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 485 Invalid, 4274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 11:34:15,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35687 states. [2022-12-14 11:34:15,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35687 to 25801. [2022-12-14 11:34:15,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25801 states, 25764 states have (on average 2.119236143455985) internal successors, (54600), 25800 states have internal predecessors, (54600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25801 states to 25801 states and 54600 transitions. [2022-12-14 11:34:15,796 INFO L78 Accepts]: Start accepts. Automaton has 25801 states and 54600 transitions. Word has length 31 [2022-12-14 11:34:15,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:15,796 INFO L495 AbstractCegarLoop]: Abstraction has 25801 states and 54600 transitions. [2022-12-14 11:34:15,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:15,796 INFO L276 IsEmpty]: Start isEmpty. Operand 25801 states and 54600 transitions. [2022-12-14 11:34:15,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:34:15,801 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:15,802 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] [2022-12-14 11:34:15,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-12-14 11:34:15,802 INFO L420 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 11:34:15,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:15,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1847642506, now seen corresponding path program 52 times [2022-12-14 11:34:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:15,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856085089] [2022-12-14 11:34:15,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat