./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:30:06,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:30:06,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:30:06,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:30:06,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:30:06,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:30:06,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:30:06,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:30:06,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:30:06,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:30:06,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:30:06,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:30:06,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:30:06,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:30:06,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:30:06,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:30:06,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:30:06,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:30:06,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:30:06,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:30:06,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:30:06,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:30:06,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:30:06,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:30:06,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:30:06,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:30:06,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:30:06,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:30:06,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:30:06,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:30:06,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:30:06,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:30:06,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:30:06,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:30:06,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:30:06,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:30:06,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:30:06,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:30:06,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:30:06,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:30:06,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:30:06,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 00:30:06,346 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:30:06,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:30:06,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:30:06,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:30:06,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:30:06,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:30:06,349 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:30:06,349 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:30:06,349 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:30:06,349 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:30:06,350 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:30:06,350 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:30:06,351 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:30:06,351 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:30:06,351 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:30:06,351 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:30:06,351 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:30:06,352 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:30:06,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:30:06,353 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:30:06,353 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:30:06,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:30:06,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:30:06,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:30:06,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:30:06,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:30:06,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:30:06,355 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 00:30:06,355 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:30:06,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:30:06,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:30:06,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:30:06,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:30:06,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:30:06,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:30:06,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:30:06,356 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:30:06,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:30:06,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:30:06,357 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:30:06,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:30:06,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:30:06,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:30:06,358 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_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2022-11-22 00:30:06,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:30:06,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:30:06,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:30:06,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:30:06,698 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:30:06,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2022-11-22 00:30:09,790 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:30:10,077 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:30:10,077 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2022-11-22 00:30:10,090 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/data/108421701/f64edc3cfeaf47f98130b1d0e5d2daa5/FLAG7912ba299 [2022-11-22 00:30:10,105 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/data/108421701/f64edc3cfeaf47f98130b1d0e5d2daa5 [2022-11-22 00:30:10,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:30:10,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:30:10,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:30:10,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:30:10,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:30:10,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@116954db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10, skipping insertion in model container [2022-11-22 00:30:10,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:30:10,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:30:10,303 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 00:30:10,644 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_c7a4c7aa-9646-4656-b969-448e81ad80d9/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-22 00:30:10,646 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_c7a4c7aa-9646-4656-b969-448e81ad80d9/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-22 00:30:10,646 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_c7a4c7aa-9646-4656-b969-448e81ad80d9/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-22 00:30:10,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:30:10,661 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:30:10,674 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 00:30:10,704 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_c7a4c7aa-9646-4656-b969-448e81ad80d9/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-22 00:30:10,705 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_c7a4c7aa-9646-4656-b969-448e81ad80d9/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-22 00:30:10,705 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_c7a4c7aa-9646-4656-b969-448e81ad80d9/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-22 00:30:10,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:30:10,763 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:30:10,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10 WrapperNode [2022-11-22 00:30:10,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:30:10,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:30:10,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:30:10,766 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:30:10,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,872 INFO L138 Inliner]: procedures = 224, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 220 [2022-11-22 00:30:10,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:30:10,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:30:10,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:30:10,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:30:10,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:30:10,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:30:10,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:30:10,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:30:10,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (1/1) ... [2022-11-22 00:30:10,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:30:10,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:10,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:30:11,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4c7aa-9646-4656-b969-448e81ad80d9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:30:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2022-11-22 00:30:11,050 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2022-11-22 00:30:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:30:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:30:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:30:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:30:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:30:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:30:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:30:11,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:30:11,053 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 00:30:11,183 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:30:11,185 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:30:11,810 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:30:11,819 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:30:11,820 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-22 00:30:11,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:30:11 BoogieIcfgContainer [2022-11-22 00:30:11,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:30:11,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:30:11,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:30:11,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:30:11,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:30:10" (1/3) ... [2022-11-22 00:30:11,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643b43fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:30:11, skipping insertion in model container [2022-11-22 00:30:11,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:10" (2/3) ... [2022-11-22 00:30:11,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643b43fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:30:11, skipping insertion in model container [2022-11-22 00:30:11,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:30:11" (3/3) ... [2022-11-22 00:30:11,831 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2022-11-22 00:30:11,846 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:30:11,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:30:11,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-22 00:30:11,858 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:30:12,012 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 00:30:12,054 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:30:12,078 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 267 transitions, 542 flow [2022-11-22 00:30:12,084 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 267 transitions, 542 flow [2022-11-22 00:30:12,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 267 transitions, 542 flow [2022-11-22 00:30:12,266 INFO L130 PetriNetUnfolder]: 10/266 cut-off events. [2022-11-22 00:30:12,266 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 00:30:12,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 266 events. 10/266 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 535 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2022-11-22 00:30:12,334 INFO L119 LiptonReduction]: Number of co-enabled transitions 21228 [2022-11-22 00:30:26,729 INFO L134 LiptonReduction]: Checked pairs total: 138050 [2022-11-22 00:30:26,731 INFO L136 LiptonReduction]: Total number of compositions: 181 [2022-11-22 00:30:26,743 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 118 places, 120 transitions, 248 flow [2022-11-22 00:30:26,864 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:26,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:30:26,897 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;@7bdea188, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:30:26,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-22 00:30:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 00:30:26,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:26,913 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 00:30:26,914 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:26,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:26,922 INFO L85 PathProgramCache]: Analyzing trace with hash 914, now seen corresponding path program 1 times [2022-11-22 00:30:26,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:26,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341075710] [2022-11-22 00:30:26,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:26,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:27,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:27,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:27,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341075710] [2022-11-22 00:30:27,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341075710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:27,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:27,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 00:30:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038662727] [2022-11-22 00:30:27,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:27,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 00:30:27,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:27,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 00:30:27,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:30:27,115 INFO L87 Difference]: Start difference. First operand has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:27,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:27,228 INFO L93 Difference]: Finished difference Result 2959 states and 6025 transitions. [2022-11-22 00:30:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 00:30:27,231 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 00:30:27,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:27,266 INFO L225 Difference]: With dead ends: 2959 [2022-11-22 00:30:27,266 INFO L226 Difference]: Without dead ends: 2959 [2022-11-22 00:30:27,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:30:27,271 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:27,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:27,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2022-11-22 00:30:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2959. [2022-11-22 00:30:27,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2959 states, 2888 states have (on average 2.086218836565097) internal successors, (6025), 2958 states have internal predecessors, (6025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:27,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 6025 transitions. [2022-11-22 00:30:27,444 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 6025 transitions. Word has length 1 [2022-11-22 00:30:27,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:27,445 INFO L495 AbstractCegarLoop]: Abstraction has 2959 states and 6025 transitions. [2022-11-22 00:30:27,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 6025 transitions. [2022-11-22 00:30:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 00:30:27,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:27,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:27,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:30:27,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:27,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:27,448 INFO L85 PathProgramCache]: Analyzing trace with hash 2014241161, now seen corresponding path program 1 times [2022-11-22 00:30:27,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:27,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141839304] [2022-11-22 00:30:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:27,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:27,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:27,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:27,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141839304] [2022-11-22 00:30:27,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141839304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:27,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:27,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:30:27,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466458596] [2022-11-22 00:30:27,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:27,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:30:27,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:27,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:30:27,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:27,697 INFO L87 Difference]: Start difference. First operand 2959 states and 6025 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:27,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:27,847 INFO L93 Difference]: Finished difference Result 5453 states and 11114 transitions. [2022-11-22 00:30:27,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:30:27,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 00:30:27,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:27,872 INFO L225 Difference]: With dead ends: 5453 [2022-11-22 00:30:27,873 INFO L226 Difference]: Without dead ends: 5453 [2022-11-22 00:30:27,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:27,874 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 102 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:27,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 226 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:30:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-11-22 00:30:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 3017. [2022-11-22 00:30:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 2946 states have (on average 2.0848608282416836) internal successors, (6142), 3016 states have internal predecessors, (6142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:28,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 6142 transitions. [2022-11-22 00:30:28,036 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 6142 transitions. Word has length 9 [2022-11-22 00:30:28,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:28,037 INFO L495 AbstractCegarLoop]: Abstraction has 3017 states and 6142 transitions. [2022-11-22 00:30:28,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:28,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 6142 transitions. [2022-11-22 00:30:28,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:30:28,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:28,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:28,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:30:28,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:28,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:28,039 INFO L85 PathProgramCache]: Analyzing trace with hash 253291591, now seen corresponding path program 1 times [2022-11-22 00:30:28,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:28,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530573730] [2022-11-22 00:30:28,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:28,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:28,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:28,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530573730] [2022-11-22 00:30:28,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530573730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:28,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:28,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:30:28,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934115941] [2022-11-22 00:30:28,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:28,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:30:28,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:28,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:30:28,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:28,456 INFO L87 Difference]: Start difference. First operand 3017 states and 6142 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:29,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:29,340 INFO L93 Difference]: Finished difference Result 5364 states and 10935 transitions. [2022-11-22 00:30:29,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:29,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 00:30:29,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:29,363 INFO L225 Difference]: With dead ends: 5364 [2022-11-22 00:30:29,363 INFO L226 Difference]: Without dead ends: 5364 [2022-11-22 00:30:29,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:29,364 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 153 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:29,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 91 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 00:30:29,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2022-11-22 00:30:29,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 3413. [2022-11-22 00:30:29,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3342 states have (on average 2.0771992818671454) internal successors, (6942), 3412 states have internal predecessors, (6942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:29,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 6942 transitions. [2022-11-22 00:30:29,524 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 6942 transitions. Word has length 10 [2022-11-22 00:30:29,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:29,525 INFO L495 AbstractCegarLoop]: Abstraction has 3413 states and 6942 transitions. [2022-11-22 00:30:29,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:29,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 6942 transitions. [2022-11-22 00:30:29,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:30:29,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:29,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:29,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:30:29,527 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:29,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:29,527 INFO L85 PathProgramCache]: Analyzing trace with hash 185305687, now seen corresponding path program 1 times [2022-11-22 00:30:29,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:29,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121703236] [2022-11-22 00:30:29,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:29,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:29,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:29,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:29,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121703236] [2022-11-22 00:30:29,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121703236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:29,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:29,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:30:29,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924610248] [2022-11-22 00:30:29,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:29,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:30:29,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:29,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:30:29,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:29,863 INFO L87 Difference]: Start difference. First operand 3413 states and 6942 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:30,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:30,890 INFO L93 Difference]: Finished difference Result 5250 states and 10704 transitions. [2022-11-22 00:30:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:30,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 00:30:30,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:30,915 INFO L225 Difference]: With dead ends: 5250 [2022-11-22 00:30:30,915 INFO L226 Difference]: Without dead ends: 5250 [2022-11-22 00:30:30,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:30,916 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 119 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:30,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 112 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 00:30:30,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5250 states. [2022-11-22 00:30:31,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5250 to 4040. [2022-11-22 00:30:31,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4040 states, 3975 states have (on average 2.0649056603773586) internal successors, (8208), 4039 states have internal predecessors, (8208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:31,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 8208 transitions. [2022-11-22 00:30:31,029 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 8208 transitions. Word has length 10 [2022-11-22 00:30:31,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:31,029 INFO L495 AbstractCegarLoop]: Abstraction has 4040 states and 8208 transitions. [2022-11-22 00:30:31,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 8208 transitions. [2022-11-22 00:30:31,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 00:30:31,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:31,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:31,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:30:31,032 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:31,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:31,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1131594322, now seen corresponding path program 1 times [2022-11-22 00:30:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:31,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370980571] [2022-11-22 00:30:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:31,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:31,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:31,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370980571] [2022-11-22 00:30:31,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370980571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:31,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:31,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:30:31,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001682731] [2022-11-22 00:30:31,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:31,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:30:31,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:31,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:30:31,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:31,337 INFO L87 Difference]: Start difference. First operand 4040 states and 8208 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:32,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:32,317 INFO L93 Difference]: Finished difference Result 5573 states and 11371 transitions. [2022-11-22 00:30:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:32,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-22 00:30:32,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:32,336 INFO L225 Difference]: With dead ends: 5573 [2022-11-22 00:30:32,336 INFO L226 Difference]: Without dead ends: 5562 [2022-11-22 00:30:32,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:32,337 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 109 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:32,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 123 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 00:30:32,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2022-11-22 00:30:32,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 4371. [2022-11-22 00:30:32,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 4312 states have (on average 2.0693413729128016) internal successors, (8923), 4370 states have internal predecessors, (8923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:32,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 8923 transitions. [2022-11-22 00:30:32,450 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 8923 transitions. Word has length 16 [2022-11-22 00:30:32,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:32,451 INFO L495 AbstractCegarLoop]: Abstraction has 4371 states and 8923 transitions. [2022-11-22 00:30:32,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:32,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 8923 transitions. [2022-11-22 00:30:32,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 00:30:32,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:32,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:32,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:30:32,454 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:32,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:32,454 INFO L85 PathProgramCache]: Analyzing trace with hash -52229361, now seen corresponding path program 1 times [2022-11-22 00:30:32,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:32,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081736563] [2022-11-22 00:30:32,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:32,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:32,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:32,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:32,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081736563] [2022-11-22 00:30:32,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081736563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:32,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:32,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:30:32,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52604329] [2022-11-22 00:30:32,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:32,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:30:32,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:30:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:32,744 INFO L87 Difference]: Start difference. First operand 4371 states and 8923 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:33,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:33,497 INFO L93 Difference]: Finished difference Result 5800 states and 11867 transitions. [2022-11-22 00:30:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:33,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-22 00:30:33,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:33,514 INFO L225 Difference]: With dead ends: 5800 [2022-11-22 00:30:33,514 INFO L226 Difference]: Without dead ends: 5800 [2022-11-22 00:30:33,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:33,515 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 132 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:33,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 116 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 00:30:33,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-11-22 00:30:33,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 4562. [2022-11-22 00:30:33,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4562 states, 4507 states have (on average 2.0769913467938763) internal successors, (9361), 4561 states have internal predecessors, (9361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 9361 transitions. [2022-11-22 00:30:33,652 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 9361 transitions. Word has length 16 [2022-11-22 00:30:33,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:33,653 INFO L495 AbstractCegarLoop]: Abstraction has 4562 states and 9361 transitions. [2022-11-22 00:30:33,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:33,653 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 9361 transitions. [2022-11-22 00:30:33,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 00:30:33,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:33,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:33,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:30:33,655 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:33,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:33,656 INFO L85 PathProgramCache]: Analyzing trace with hash -672259527, now seen corresponding path program 1 times [2022-11-22 00:30:33,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:33,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899051319] [2022-11-22 00:30:33,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:33,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:34,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:34,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899051319] [2022-11-22 00:30:34,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899051319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:34,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:34,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:30:34,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793139953] [2022-11-22 00:30:34,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:34,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:30:34,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:34,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:30:34,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:34,045 INFO L87 Difference]: Start difference. First operand 4562 states and 9361 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:34,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:34,666 INFO L93 Difference]: Finished difference Result 5530 states and 11317 transitions. [2022-11-22 00:30:34,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:34,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-22 00:30:34,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:34,684 INFO L225 Difference]: With dead ends: 5530 [2022-11-22 00:30:34,684 INFO L226 Difference]: Without dead ends: 5530 [2022-11-22 00:30:34,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:34,685 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 124 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:34,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 108 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 00:30:34,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2022-11-22 00:30:34,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 4886. [2022-11-22 00:30:34,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4886 states, 4839 states have (on average 2.06964248811738) internal successors, (10015), 4885 states have internal predecessors, (10015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:34,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4886 states to 4886 states and 10015 transitions. [2022-11-22 00:30:34,819 INFO L78 Accepts]: Start accepts. Automaton has 4886 states and 10015 transitions. Word has length 22 [2022-11-22 00:30:34,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:34,820 INFO L495 AbstractCegarLoop]: Abstraction has 4886 states and 10015 transitions. [2022-11-22 00:30:34,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 4886 states and 10015 transitions. [2022-11-22 00:30:34,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 00:30:34,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:34,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:34,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:30:34,824 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:34,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:34,825 INFO L85 PathProgramCache]: Analyzing trace with hash -828871843, now seen corresponding path program 1 times [2022-11-22 00:30:34,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:34,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635217880] [2022-11-22 00:30:34,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:34,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:35,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:35,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635217880] [2022-11-22 00:30:35,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635217880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:35,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:35,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:30:35,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719869696] [2022-11-22 00:30:35,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:35,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:30:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:35,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:30:35,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:35,199 INFO L87 Difference]: Start difference. First operand 4886 states and 10015 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:35,961 INFO L93 Difference]: Finished difference Result 5048 states and 10342 transitions. [2022-11-22 00:30:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:35,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-22 00:30:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:35,975 INFO L225 Difference]: With dead ends: 5048 [2022-11-22 00:30:35,976 INFO L226 Difference]: Without dead ends: 5048 [2022-11-22 00:30:35,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:35,978 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 96 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:35,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 132 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 00:30:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5048 states. [2022-11-22 00:30:36,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5048 to 5048. [2022-11-22 00:30:36,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5048 states, 5005 states have (on average 2.066333666333666) internal successors, (10342), 5047 states have internal predecessors, (10342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5048 states to 5048 states and 10342 transitions. [2022-11-22 00:30:36,088 INFO L78 Accepts]: Start accepts. Automaton has 5048 states and 10342 transitions. Word has length 28 [2022-11-22 00:30:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:36,088 INFO L495 AbstractCegarLoop]: Abstraction has 5048 states and 10342 transitions. [2022-11-22 00:30:36,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5048 states and 10342 transitions. [2022-11-22 00:30:36,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 00:30:36,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:36,120 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] [2022-11-22 00:30:36,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:30:36,120 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:36,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:36,121 INFO L85 PathProgramCache]: Analyzing trace with hash 764451322, now seen corresponding path program 1 times [2022-11-22 00:30:36,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:36,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986806374] [2022-11-22 00:30:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:36,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:36,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:36,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:36,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986806374] [2022-11-22 00:30:36,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986806374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:36,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:36,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:30:36,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165229993] [2022-11-22 00:30:36,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:36,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:30:36,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:36,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:30:36,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:36,418 INFO L87 Difference]: Start difference. First operand 5048 states and 10342 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:37,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:37,220 INFO L93 Difference]: Finished difference Result 5268 states and 10786 transitions. [2022-11-22 00:30:37,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:37,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-22 00:30:37,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:37,235 INFO L225 Difference]: With dead ends: 5268 [2022-11-22 00:30:37,235 INFO L226 Difference]: Without dead ends: 5268 [2022-11-22 00:30:37,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:30:37,236 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 108 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:37,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 115 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 00:30:37,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2022-11-22 00:30:37,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 5268. [2022-11-22 00:30:37,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 5225 states have (on average 2.064306220095694) internal successors, (10786), 5267 states have internal predecessors, (10786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:37,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 10786 transitions. [2022-11-22 00:30:37,377 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 10786 transitions. Word has length 28 [2022-11-22 00:30:37,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:37,379 INFO L495 AbstractCegarLoop]: Abstraction has 5268 states and 10786 transitions. [2022-11-22 00:30:37,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:37,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 10786 transitions. [2022-11-22 00:30:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:30:37,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:37,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:37,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 00:30:37,382 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:37,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:37,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1664622446, now seen corresponding path program 1 times [2022-11-22 00:30:37,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:37,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708540639] [2022-11-22 00:30:37,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:37,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:39,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:39,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708540639] [2022-11-22 00:30:39,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708540639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:39,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:39,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 00:30:39,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174398481] [2022-11-22 00:30:39,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:39,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 00:30:39,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:39,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 00:30:39,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-22 00:30:39,238 INFO L87 Difference]: Start difference. First operand 5268 states and 10786 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:44,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:44,474 INFO L93 Difference]: Finished difference Result 11909 states and 24450 transitions. [2022-11-22 00:30:44,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 00:30:44,475 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:30:44,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:44,505 INFO L225 Difference]: With dead ends: 11909 [2022-11-22 00:30:44,505 INFO L226 Difference]: Without dead ends: 11905 [2022-11-22 00:30:44,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2022-11-22 00:30:44,507 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 814 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 3818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:44,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 260 Invalid, 3818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 3539 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-22 00:30:44,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11905 states. [2022-11-22 00:30:44,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11905 to 6148. [2022-11-22 00:30:44,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 6105 states have (on average 2.095823095823096) internal successors, (12795), 6147 states have internal predecessors, (12795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:44,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 12795 transitions. [2022-11-22 00:30:44,671 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 12795 transitions. Word has length 32 [2022-11-22 00:30:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:44,673 INFO L495 AbstractCegarLoop]: Abstraction has 6148 states and 12795 transitions. [2022-11-22 00:30:44,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 12795 transitions. [2022-11-22 00:30:44,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:30:44,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:44,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:44,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 00:30:44,679 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:44,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:44,680 INFO L85 PathProgramCache]: Analyzing trace with hash -73521212, now seen corresponding path program 1 times [2022-11-22 00:30:44,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:44,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386413818] [2022-11-22 00:30:44,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:44,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:46,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:46,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386413818] [2022-11-22 00:30:46,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386413818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:46,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:46,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:30:46,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591426307] [2022-11-22 00:30:46,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:46,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:30:46,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:46,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:30:46,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:30:46,873 INFO L87 Difference]: Start difference. First operand 6148 states and 12795 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:51,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:51,448 INFO L93 Difference]: Finished difference Result 10059 states and 20653 transitions. [2022-11-22 00:30:51,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 00:30:51,448 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:30:51,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:51,507 INFO L225 Difference]: With dead ends: 10059 [2022-11-22 00:30:51,507 INFO L226 Difference]: Without dead ends: 10059 [2022-11-22 00:30:51,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=220, Invalid=650, Unknown=0, NotChecked=0, Total=870 [2022-11-22 00:30:51,508 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1048 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 3762 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:51,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 940 Invalid, 3865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3762 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-22 00:30:51,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10059 states. [2022-11-22 00:30:51,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10059 to 6468. [2022-11-22 00:30:51,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6468 states, 6425 states have (on average 2.0957198443579768) internal successors, (13465), 6467 states have internal predecessors, (13465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:51,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6468 states to 6468 states and 13465 transitions. [2022-11-22 00:30:51,659 INFO L78 Accepts]: Start accepts. Automaton has 6468 states and 13465 transitions. Word has length 32 [2022-11-22 00:30:51,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:51,661 INFO L495 AbstractCegarLoop]: Abstraction has 6468 states and 13465 transitions. [2022-11-22 00:30:51,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:51,662 INFO L276 IsEmpty]: Start isEmpty. Operand 6468 states and 13465 transitions. [2022-11-22 00:30:51,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:30:51,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:51,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:51,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 00:30:51,665 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:51,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:51,666 INFO L85 PathProgramCache]: Analyzing trace with hash 605137366, now seen corresponding path program 2 times [2022-11-22 00:30:51,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:51,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697058497] [2022-11-22 00:30:51,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:51,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:53,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:53,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697058497] [2022-11-22 00:30:53,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697058497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:53,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:53,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-22 00:30:53,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197683665] [2022-11-22 00:30:53,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:53,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:30:53,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:53,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:30:53,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:30:53,234 INFO L87 Difference]: Start difference. First operand 6468 states and 13465 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:58,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:58,920 INFO L93 Difference]: Finished difference Result 17855 states and 37315 transitions. [2022-11-22 00:30:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 00:30:58,921 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:30:58,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:58,959 INFO L225 Difference]: With dead ends: 17855 [2022-11-22 00:30:58,960 INFO L226 Difference]: Without dead ends: 17851 [2022-11-22 00:30:58,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=356, Invalid=904, Unknown=0, NotChecked=0, Total=1260 [2022-11-22 00:30:58,961 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 852 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 4293 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 4663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 4293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:58,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 901 Invalid, 4663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 4293 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-22 00:30:58,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17851 states. [2022-11-22 00:30:59,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17851 to 7545. [2022-11-22 00:30:59,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7545 states, 7502 states have (on average 2.1198347107438016) internal successors, (15903), 7544 states have internal predecessors, (15903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:59,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7545 states to 7545 states and 15903 transitions. [2022-11-22 00:30:59,170 INFO L78 Accepts]: Start accepts. Automaton has 7545 states and 15903 transitions. Word has length 32 [2022-11-22 00:30:59,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:59,170 INFO L495 AbstractCegarLoop]: Abstraction has 7545 states and 15903 transitions. [2022-11-22 00:30:59,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:59,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7545 states and 15903 transitions. [2022-11-22 00:30:59,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:30:59,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:59,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:59,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 00:30:59,178 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:30:59,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:59,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1648611750, now seen corresponding path program 2 times [2022-11-22 00:30:59,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:59,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330114740] [2022-11-22 00:30:59,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:59,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:00,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:00,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330114740] [2022-11-22 00:31:00,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330114740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:00,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:00,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-22 00:31:00,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085360806] [2022-11-22 00:31:00,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:00,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:31:00,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:00,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:31:00,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:31:00,771 INFO L87 Difference]: Start difference. First operand 7545 states and 15903 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:05,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:05,062 INFO L93 Difference]: Finished difference Result 12851 states and 27013 transitions. [2022-11-22 00:31:05,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 00:31:05,062 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:31:05,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:05,092 INFO L225 Difference]: With dead ends: 12851 [2022-11-22 00:31:05,092 INFO L226 Difference]: Without dead ends: 12851 [2022-11-22 00:31:05,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2022-11-22 00:31:05,093 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 659 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 4453 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 4473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:05,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1086 Invalid, 4473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4453 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-22 00:31:05,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12851 states. [2022-11-22 00:31:05,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12851 to 8211. [2022-11-22 00:31:05,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8211 states, 8168 states have (on average 2.126958863858962) internal successors, (17373), 8210 states have internal predecessors, (17373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:05,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8211 states to 8211 states and 17373 transitions. [2022-11-22 00:31:05,354 INFO L78 Accepts]: Start accepts. Automaton has 8211 states and 17373 transitions. Word has length 32 [2022-11-22 00:31:05,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:05,356 INFO L495 AbstractCegarLoop]: Abstraction has 8211 states and 17373 transitions. [2022-11-22 00:31:05,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:05,356 INFO L276 IsEmpty]: Start isEmpty. Operand 8211 states and 17373 transitions. [2022-11-22 00:31:05,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:31:05,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:05,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:05,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 00:31:05,364 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:31:05,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1544592462, now seen corresponding path program 3 times [2022-11-22 00:31:05,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:05,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312989727] [2022-11-22 00:31:05,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:05,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:06,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:06,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312989727] [2022-11-22 00:31:06,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312989727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:06,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:06,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-22 00:31:06,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43276109] [2022-11-22 00:31:06,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:06,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:31:06,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:06,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:31:06,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:31:06,790 INFO L87 Difference]: Start difference. First operand 8211 states and 17373 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:11,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:11,889 INFO L93 Difference]: Finished difference Result 21061 states and 44671 transitions. [2022-11-22 00:31:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 00:31:11,890 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:31:11,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:11,928 INFO L225 Difference]: With dead ends: 21061 [2022-11-22 00:31:11,928 INFO L226 Difference]: Without dead ends: 21057 [2022-11-22 00:31:11,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=293, Invalid=763, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 00:31:11,930 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 961 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 3585 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 4085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 3585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:11,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 1026 Invalid, 4085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 3585 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-22 00:31:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21057 states. [2022-11-22 00:31:12,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21057 to 10281. [2022-11-22 00:31:12,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10281 states, 10238 states have (on average 2.164387575698379) internal successors, (22159), 10280 states have internal predecessors, (22159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:12,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10281 states to 10281 states and 22159 transitions. [2022-11-22 00:31:12,198 INFO L78 Accepts]: Start accepts. Automaton has 10281 states and 22159 transitions. Word has length 32 [2022-11-22 00:31:12,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:12,198 INFO L495 AbstractCegarLoop]: Abstraction has 10281 states and 22159 transitions. [2022-11-22 00:31:12,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:12,198 INFO L276 IsEmpty]: Start isEmpty. Operand 10281 states and 22159 transitions. [2022-11-22 00:31:12,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:31:12,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:12,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:12,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 00:31:12,205 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:31:12,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:12,205 INFO L85 PathProgramCache]: Analyzing trace with hash 444005636, now seen corresponding path program 4 times [2022-11-22 00:31:12,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:12,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379845570] [2022-11-22 00:31:12,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:12,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:13,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:13,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379845570] [2022-11-22 00:31:13,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379845570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:13,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:13,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:31:13,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314976663] [2022-11-22 00:31:13,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:13,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:31:13,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:13,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:31:13,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:31:13,413 INFO L87 Difference]: Start difference. First operand 10281 states and 22159 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:22,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:22,899 INFO L93 Difference]: Finished difference Result 27175 states and 57513 transitions. [2022-11-22 00:31:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-22 00:31:22,899 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:31:22,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:22,944 INFO L225 Difference]: With dead ends: 27175 [2022-11-22 00:31:22,944 INFO L226 Difference]: Without dead ends: 27168 [2022-11-22 00:31:22,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=952, Invalid=3208, Unknown=0, NotChecked=0, Total=4160 [2022-11-22 00:31:22,946 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1202 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 6126 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 6789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 6126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:22,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 1856 Invalid, 6789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 6126 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-22 00:31:22,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27168 states. [2022-11-22 00:31:23,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27168 to 15143. [2022-11-22 00:31:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15143 states, 15100 states have (on average 2.178741721854305) internal successors, (32899), 15142 states have internal predecessors, (32899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15143 states to 15143 states and 32899 transitions. [2022-11-22 00:31:23,347 INFO L78 Accepts]: Start accepts. Automaton has 15143 states and 32899 transitions. Word has length 32 [2022-11-22 00:31:23,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:23,348 INFO L495 AbstractCegarLoop]: Abstraction has 15143 states and 32899 transitions. [2022-11-22 00:31:23,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:23,348 INFO L276 IsEmpty]: Start isEmpty. Operand 15143 states and 32899 transitions. [2022-11-22 00:31:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:31:23,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:23,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:23,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 00:31:23,355 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:31:23,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash -33182028, now seen corresponding path program 3 times [2022-11-22 00:31:23,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:23,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993656642] [2022-11-22 00:31:23,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:23,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:24,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:24,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:24,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993656642] [2022-11-22 00:31:24,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993656642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:24,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:24,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-22 00:31:24,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852245656] [2022-11-22 00:31:24,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:24,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:31:24,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:24,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:31:24,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:31:24,918 INFO L87 Difference]: Start difference. First operand 15143 states and 32899 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:28,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:28,749 INFO L93 Difference]: Finished difference Result 21304 states and 45941 transitions. [2022-11-22 00:31:28,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 00:31:28,750 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:31:28,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:28,782 INFO L225 Difference]: With dead ends: 21304 [2022-11-22 00:31:28,783 INFO L226 Difference]: Without dead ends: 21304 [2022-11-22 00:31:28,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2022-11-22 00:31:28,786 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 634 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 3763 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 3788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:28,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1284 Invalid, 3788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3763 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 00:31:28,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21304 states. [2022-11-22 00:31:29,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21304 to 16478. [2022-11-22 00:31:29,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16478 states, 16435 states have (on average 2.177608761788865) internal successors, (35789), 16477 states have internal predecessors, (35789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:29,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16478 states to 16478 states and 35789 transitions. [2022-11-22 00:31:29,139 INFO L78 Accepts]: Start accepts. Automaton has 16478 states and 35789 transitions. Word has length 32 [2022-11-22 00:31:29,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:29,139 INFO L495 AbstractCegarLoop]: Abstraction has 16478 states and 35789 transitions. [2022-11-22 00:31:29,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:29,139 INFO L276 IsEmpty]: Start isEmpty. Operand 16478 states and 35789 transitions. [2022-11-22 00:31:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:31:29,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:29,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:29,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 00:31:29,149 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:31:29,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:29,150 INFO L85 PathProgramCache]: Analyzing trace with hash 92417422, now seen corresponding path program 4 times [2022-11-22 00:31:29,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:29,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544653165] [2022-11-22 00:31:29,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:29,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:31,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:31,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544653165] [2022-11-22 00:31:31,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544653165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:31,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:31,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:31:31,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437556369] [2022-11-22 00:31:31,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:31,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:31:31,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:31,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:31:31,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:31:31,171 INFO L87 Difference]: Start difference. First operand 16478 states and 35789 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:36,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:36,925 INFO L93 Difference]: Finished difference Result 19814 states and 42075 transitions. [2022-11-22 00:31:36,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 00:31:36,926 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:31:36,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:36,958 INFO L225 Difference]: With dead ends: 19814 [2022-11-22 00:31:36,958 INFO L226 Difference]: Without dead ends: 19814 [2022-11-22 00:31:36,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 00:31:36,959 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1032 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 4802 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 4846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:36,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 1803 Invalid, 4846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 4802 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-22 00:31:36,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19814 states. [2022-11-22 00:31:37,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19814 to 16458. [2022-11-22 00:31:37,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16458 states, 16415 states have (on average 2.1761194029850746) internal successors, (35721), 16457 states have internal predecessors, (35721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16458 states to 16458 states and 35721 transitions. [2022-11-22 00:31:37,373 INFO L78 Accepts]: Start accepts. Automaton has 16458 states and 35721 transitions. Word has length 32 [2022-11-22 00:31:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:37,373 INFO L495 AbstractCegarLoop]: Abstraction has 16458 states and 35721 transitions. [2022-11-22 00:31:37,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 16458 states and 35721 transitions. [2022-11-22 00:31:37,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:31:37,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:37,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:37,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 00:31:37,380 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:31:37,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:37,381 INFO L85 PathProgramCache]: Analyzing trace with hash 407904112, now seen corresponding path program 5 times [2022-11-22 00:31:37,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:37,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492057290] [2022-11-22 00:31:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:37,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:39,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:39,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:39,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492057290] [2022-11-22 00:31:39,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492057290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:39,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:39,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:31:39,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771438721] [2022-11-22 00:31:39,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:39,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:31:39,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:39,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:31:39,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:31:39,077 INFO L87 Difference]: Start difference. First operand 16458 states and 35721 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:44,172 INFO L93 Difference]: Finished difference Result 19876 states and 42167 transitions. [2022-11-22 00:31:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 00:31:44,173 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:31:44,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:44,203 INFO L225 Difference]: With dead ends: 19876 [2022-11-22 00:31:44,203 INFO L226 Difference]: Without dead ends: 19876 [2022-11-22 00:31:44,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 00:31:44,204 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1013 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 4263 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 4315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 4263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:44,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 1687 Invalid, 4315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 4263 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-22 00:31:44,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19876 states. [2022-11-22 00:31:44,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19876 to 16446. [2022-11-22 00:31:44,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16446 states, 16403 states have (on average 2.1752728159483024) internal successors, (35681), 16445 states have internal predecessors, (35681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:44,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16446 states to 16446 states and 35681 transitions. [2022-11-22 00:31:44,589 INFO L78 Accepts]: Start accepts. Automaton has 16446 states and 35681 transitions. Word has length 32 [2022-11-22 00:31:44,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:44,590 INFO L495 AbstractCegarLoop]: Abstraction has 16446 states and 35681 transitions. [2022-11-22 00:31:44,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:44,590 INFO L276 IsEmpty]: Start isEmpty. Operand 16446 states and 35681 transitions. [2022-11-22 00:31:44,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:31:44,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:44,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:44,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 00:31:44,598 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:31:44,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:44,599 INFO L85 PathProgramCache]: Analyzing trace with hash -37169906, now seen corresponding path program 6 times [2022-11-22 00:31:44,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:44,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369286370] [2022-11-22 00:31:44,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:44,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:46,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:46,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369286370] [2022-11-22 00:31:46,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369286370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:46,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:46,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:31:46,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553063360] [2022-11-22 00:31:46,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:46,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:31:46,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:46,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:31:46,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:31:46,394 INFO L87 Difference]: Start difference. First operand 16446 states and 35681 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:50,711 INFO L93 Difference]: Finished difference Result 19926 states and 42251 transitions. [2022-11-22 00:31:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 00:31:50,712 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:31:50,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:50,745 INFO L225 Difference]: With dead ends: 19926 [2022-11-22 00:31:50,745 INFO L226 Difference]: Without dead ends: 19926 [2022-11-22 00:31:50,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=251, Invalid=871, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 00:31:50,746 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 850 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 3338 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 3386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:50,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1791 Invalid, 3386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3338 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-22 00:31:50,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19926 states. [2022-11-22 00:31:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19926 to 16151. [2022-11-22 00:31:51,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16151 states, 16108 states have (on average 2.1753166128631736) internal successors, (35040), 16150 states have internal predecessors, (35040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16151 states to 16151 states and 35040 transitions. [2022-11-22 00:31:51,111 INFO L78 Accepts]: Start accepts. Automaton has 16151 states and 35040 transitions. Word has length 32 [2022-11-22 00:31:51,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:51,111 INFO L495 AbstractCegarLoop]: Abstraction has 16151 states and 35040 transitions. [2022-11-22 00:31:51,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:51,111 INFO L276 IsEmpty]: Start isEmpty. Operand 16151 states and 35040 transitions. [2022-11-22 00:31:51,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:31:51,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:51,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:51,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 00:31:51,117 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:31:51,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:51,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1869863116, now seen corresponding path program 5 times [2022-11-22 00:31:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:51,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887789062] [2022-11-22 00:31:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:51,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:52,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:52,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:52,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887789062] [2022-11-22 00:31:52,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887789062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:52,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:52,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:31:52,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308393378] [2022-11-22 00:31:52,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:52,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:31:52,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:52,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:31:52,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:31:52,203 INFO L87 Difference]: Start difference. First operand 16151 states and 35040 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:02,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:32:02,619 INFO L93 Difference]: Finished difference Result 41617 states and 89866 transitions. [2022-11-22 00:32:02,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-11-22 00:32:02,621 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:32:02,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:32:02,695 INFO L225 Difference]: With dead ends: 41617 [2022-11-22 00:32:02,695 INFO L226 Difference]: Without dead ends: 41617 [2022-11-22 00:32:02,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=979, Invalid=2927, Unknown=0, NotChecked=0, Total=3906 [2022-11-22 00:32:02,696 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 1677 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 8145 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1677 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 8628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 8145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:32:02,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1677 Valid, 593 Invalid, 8628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 8145 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-22 00:32:02,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41617 states. [2022-11-22 00:32:03,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41617 to 21714. [2022-11-22 00:32:03,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21714 states, 21671 states have (on average 2.20068294033501) internal successors, (47691), 21713 states have internal predecessors, (47691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:03,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21714 states to 21714 states and 47691 transitions. [2022-11-22 00:32:03,171 INFO L78 Accepts]: Start accepts. Automaton has 21714 states and 47691 transitions. Word has length 32 [2022-11-22 00:32:03,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:32:03,171 INFO L495 AbstractCegarLoop]: Abstraction has 21714 states and 47691 transitions. [2022-11-22 00:32:03,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:03,171 INFO L276 IsEmpty]: Start isEmpty. Operand 21714 states and 47691 transitions. [2022-11-22 00:32:03,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:32:03,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:32:03,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:32:03,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 00:32:03,177 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:32:03,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:32:03,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1737865426, now seen corresponding path program 6 times [2022-11-22 00:32:03,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:32:03,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082741216] [2022-11-22 00:32:03,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:32:03,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:32:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:32:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:32:05,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:32:05,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082741216] [2022-11-22 00:32:05,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082741216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:32:05,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:32:05,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:32:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208020416] [2022-11-22 00:32:05,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:32:05,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:32:05,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:32:05,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:32:05,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:32:05,077 INFO L87 Difference]: Start difference. First operand 21714 states and 47691 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:11,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:32:11,141 INFO L93 Difference]: Finished difference Result 36046 states and 77601 transitions. [2022-11-22 00:32:11,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-22 00:32:11,141 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:32:11,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:32:11,199 INFO L225 Difference]: With dead ends: 36046 [2022-11-22 00:32:11,199 INFO L226 Difference]: Without dead ends: 36042 [2022-11-22 00:32:11,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=377, Invalid=1105, Unknown=0, NotChecked=0, Total=1482 [2022-11-22 00:32:11,200 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1008 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 4483 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 4852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 4483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:32:11,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 1405 Invalid, 4852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 4483 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 00:32:11,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36042 states. [2022-11-22 00:32:11,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36042 to 21997. [2022-11-22 00:32:11,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21997 states, 21954 states have (on average 2.198597066593787) internal successors, (48268), 21996 states have internal predecessors, (48268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:11,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21997 states to 21997 states and 48268 transitions. [2022-11-22 00:32:11,617 INFO L78 Accepts]: Start accepts. Automaton has 21997 states and 48268 transitions. Word has length 32 [2022-11-22 00:32:11,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:32:11,617 INFO L495 AbstractCegarLoop]: Abstraction has 21997 states and 48268 transitions. [2022-11-22 00:32:11,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:11,618 INFO L276 IsEmpty]: Start isEmpty. Operand 21997 states and 48268 transitions. [2022-11-22 00:32:11,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:32:11,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:32:11,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:32:11,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 00:32:11,624 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:32:11,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:32:11,624 INFO L85 PathProgramCache]: Analyzing trace with hash 602586274, now seen corresponding path program 7 times [2022-11-22 00:32:11,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:32:11,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347854661] [2022-11-22 00:32:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:32:11,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:32:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:32:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:32:16,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:32:16,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347854661] [2022-11-22 00:32:16,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347854661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:32:16,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:32:16,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-22 00:32:16,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625271383] [2022-11-22 00:32:16,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:32:16,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-22 00:32:16,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:32:16,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-22 00:32:16,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2022-11-22 00:32:16,032 INFO L87 Difference]: Start difference. First operand 21997 states and 48268 transitions. Second operand has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:29,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:32:29,215 INFO L93 Difference]: Finished difference Result 41571 states and 90237 transitions. [2022-11-22 00:32:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-22 00:32:29,216 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:32:29,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:32:29,295 INFO L225 Difference]: With dead ends: 41571 [2022-11-22 00:32:29,295 INFO L226 Difference]: Without dead ends: 41570 [2022-11-22 00:32:29,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=496, Invalid=1760, Unknown=0, NotChecked=0, Total=2256 [2022-11-22 00:32:29,296 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 965 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 7776 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 8385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 7776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:32:29,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 652 Invalid, 8385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 7776 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-22 00:32:29,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41570 states. [2022-11-22 00:32:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41570 to 27603. [2022-11-22 00:32:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27603 states, 27560 states have (on average 2.213243831640058) internal successors, (60997), 27602 states have internal predecessors, (60997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:29,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27603 states to 27603 states and 60997 transitions. [2022-11-22 00:32:29,941 INFO L78 Accepts]: Start accepts. Automaton has 27603 states and 60997 transitions. Word has length 32 [2022-11-22 00:32:29,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:32:29,941 INFO L495 AbstractCegarLoop]: Abstraction has 27603 states and 60997 transitions. [2022-11-22 00:32:29,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:29,942 INFO L276 IsEmpty]: Start isEmpty. Operand 27603 states and 60997 transitions. [2022-11-22 00:32:29,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:32:29,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:32:29,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:32:29,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 00:32:29,947 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:32:29,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:32:29,948 INFO L85 PathProgramCache]: Analyzing trace with hash -229610934, now seen corresponding path program 8 times [2022-11-22 00:32:29,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:32:29,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877776220] [2022-11-22 00:32:29,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:32:29,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:32:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:32:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:32:34,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:32:34,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877776220] [2022-11-22 00:32:34,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877776220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:32:34,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:32:34,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-22 00:32:34,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104056045] [2022-11-22 00:32:34,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:32:34,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:32:34,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:32:34,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:32:34,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:32:34,960 INFO L87 Difference]: Start difference. First operand 27603 states and 60997 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:46,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:32:46,772 INFO L93 Difference]: Finished difference Result 47496 states and 103950 transitions. [2022-11-22 00:32:46,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-22 00:32:46,773 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:32:46,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:32:46,861 INFO L225 Difference]: With dead ends: 47496 [2022-11-22 00:32:46,861 INFO L226 Difference]: Without dead ends: 47495 [2022-11-22 00:32:46,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=450, Invalid=1806, Unknown=0, NotChecked=0, Total=2256 [2022-11-22 00:32:46,863 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 1099 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 6934 mSolverCounterSat, 837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 7771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 837 IncrementalHoareTripleChecker+Valid, 6934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:32:46,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 786 Invalid, 7771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [837 Valid, 6934 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-11-22 00:32:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47495 states. [2022-11-22 00:32:47,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47495 to 33063. [2022-11-22 00:32:47,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33063 states, 33020 states have (on average 2.223319200484555) internal successors, (73414), 33062 states have internal predecessors, (73414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33063 states to 33063 states and 73414 transitions. [2022-11-22 00:32:47,464 INFO L78 Accepts]: Start accepts. Automaton has 33063 states and 73414 transitions. Word has length 32 [2022-11-22 00:32:47,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:32:47,464 INFO L495 AbstractCegarLoop]: Abstraction has 33063 states and 73414 transitions. [2022-11-22 00:32:47,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:32:47,464 INFO L276 IsEmpty]: Start isEmpty. Operand 33063 states and 73414 transitions. [2022-11-22 00:32:47,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:32:47,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:32:47,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:32:47,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 00:32:47,469 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:32:47,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:32:47,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1201094840, now seen corresponding path program 9 times [2022-11-22 00:32:47,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:32:47,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51290463] [2022-11-22 00:32:47,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:32:47,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:32:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:32:52,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:32:52,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:32:52,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51290463] [2022-11-22 00:32:52,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51290463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:32:52,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:32:52,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-22 00:32:52,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618354815] [2022-11-22 00:32:52,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:32:52,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:32:52,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:32:52,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:32:52,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:32:52,555 INFO L87 Difference]: Start difference. First operand 33063 states and 73414 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:09,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:09,131 INFO L93 Difference]: Finished difference Result 55914 states and 123207 transitions. [2022-11-22 00:33:09,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-22 00:33:09,132 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:33:09,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:09,255 INFO L225 Difference]: With dead ends: 55914 [2022-11-22 00:33:09,256 INFO L226 Difference]: Without dead ends: 55913 [2022-11-22 00:33:09,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=459, Invalid=1893, Unknown=0, NotChecked=0, Total=2352 [2022-11-22 00:33:09,258 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 865 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 11632 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 12216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 11632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:09,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 841 Invalid, 12216 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [584 Valid, 11632 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2022-11-22 00:33:09,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55913 states. [2022-11-22 00:33:09,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55913 to 33102. [2022-11-22 00:33:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33102 states, 33059 states have (on average 2.223388487250068) internal successors, (73503), 33101 states have internal predecessors, (73503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:09,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33102 states to 33102 states and 73503 transitions. [2022-11-22 00:33:09,898 INFO L78 Accepts]: Start accepts. Automaton has 33102 states and 73503 transitions. Word has length 32 [2022-11-22 00:33:09,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:09,899 INFO L495 AbstractCegarLoop]: Abstraction has 33102 states and 73503 transitions. [2022-11-22 00:33:09,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:09,899 INFO L276 IsEmpty]: Start isEmpty. Operand 33102 states and 73503 transitions. [2022-11-22 00:33:09,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:33:09,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:09,906 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, 1] [2022-11-22 00:33:09,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 00:33:09,907 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:33:09,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:09,907 INFO L85 PathProgramCache]: Analyzing trace with hash -79459986, now seen corresponding path program 10 times [2022-11-22 00:33:09,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:09,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918676385] [2022-11-22 00:33:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:09,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:14,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:14,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:14,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918676385] [2022-11-22 00:33:14,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918676385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:14,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:14,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-22 00:33:14,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720382198] [2022-11-22 00:33:14,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:14,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:33:14,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:14,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:33:14,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:33:14,560 INFO L87 Difference]: Start difference. First operand 33102 states and 73503 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:28,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:28,903 INFO L93 Difference]: Finished difference Result 54380 states and 119540 transitions. [2022-11-22 00:33:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-22 00:33:28,903 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:33:28,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:29,020 INFO L225 Difference]: With dead ends: 54380 [2022-11-22 00:33:29,020 INFO L226 Difference]: Without dead ends: 54379 [2022-11-22 00:33:29,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=449, Invalid=1807, Unknown=0, NotChecked=0, Total=2256 [2022-11-22 00:33:29,021 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 853 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 9772 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 10356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 9772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:29,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 821 Invalid, 10356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 9772 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2022-11-22 00:33:29,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54379 states. [2022-11-22 00:33:29,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54379 to 38596. [2022-11-22 00:33:29,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38596 states, 38553 states have (on average 2.230851036235831) internal successors, (86006), 38595 states have internal predecessors, (86006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:29,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38596 states to 38596 states and 86006 transitions. [2022-11-22 00:33:29,690 INFO L78 Accepts]: Start accepts. Automaton has 38596 states and 86006 transitions. Word has length 32 [2022-11-22 00:33:29,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:29,690 INFO L495 AbstractCegarLoop]: Abstraction has 38596 states and 86006 transitions. [2022-11-22 00:33:29,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:29,691 INFO L276 IsEmpty]: Start isEmpty. Operand 38596 states and 86006 transitions. [2022-11-22 00:33:29,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:33:29,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:29,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:29,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 00:33:29,695 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:33:29,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:29,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1673710716, now seen corresponding path program 11 times [2022-11-22 00:33:29,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:29,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320607295] [2022-11-22 00:33:29,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:29,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:31,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:31,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:31,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320607295] [2022-11-22 00:33:31,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320607295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:31,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:31,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-22 00:33:31,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326969168] [2022-11-22 00:33:31,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:31,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:33:31,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:31,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:33:31,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:33:31,069 INFO L87 Difference]: Start difference. First operand 38596 states and 86006 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:36,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:36,736 INFO L93 Difference]: Finished difference Result 75379 states and 167379 transitions. [2022-11-22 00:33:36,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-22 00:33:36,737 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:33:36,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:36,928 INFO L225 Difference]: With dead ends: 75379 [2022-11-22 00:33:36,928 INFO L226 Difference]: Without dead ends: 75375 [2022-11-22 00:33:36,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=420, Invalid=986, Unknown=0, NotChecked=0, Total=1406 [2022-11-22 00:33:36,929 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1016 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 3818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:36,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 606 Invalid, 3818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-22 00:33:37,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75375 states. [2022-11-22 00:33:37,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75375 to 39483. [2022-11-22 00:33:37,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39483 states, 39440 states have (on average 2.232733265720081) internal successors, (88059), 39482 states have internal predecessors, (88059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39483 states to 39483 states and 88059 transitions. [2022-11-22 00:33:37,973 INFO L78 Accepts]: Start accepts. Automaton has 39483 states and 88059 transitions. Word has length 32 [2022-11-22 00:33:37,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:37,973 INFO L495 AbstractCegarLoop]: Abstraction has 39483 states and 88059 transitions. [2022-11-22 00:33:37,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:37,974 INFO L276 IsEmpty]: Start isEmpty. Operand 39483 states and 88059 transitions. [2022-11-22 00:33:37,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:33:37,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:37,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:37,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 00:33:37,979 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:33:37,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:37,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1888297418, now seen corresponding path program 12 times [2022-11-22 00:33:37,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:37,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222618830] [2022-11-22 00:33:37,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:37,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:39,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:39,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:39,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222618830] [2022-11-22 00:33:39,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222618830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:39,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:39,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-22 00:33:39,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187042133] [2022-11-22 00:33:39,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:39,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:33:39,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:39,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:33:39,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:33:39,176 INFO L87 Difference]: Start difference. First operand 39483 states and 88059 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:45,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:45,776 INFO L93 Difference]: Finished difference Result 77186 states and 171534 transitions. [2022-11-22 00:33:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-22 00:33:45,777 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:33:45,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:45,961 INFO L225 Difference]: With dead ends: 77186 [2022-11-22 00:33:45,961 INFO L226 Difference]: Without dead ends: 77182 [2022-11-22 00:33:45,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=518, Invalid=1204, Unknown=0, NotChecked=0, Total=1722 [2022-11-22 00:33:45,962 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 986 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 3777 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 4365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 3777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:45,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 709 Invalid, 4365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 3777 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-22 00:33:46,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77182 states. [2022-11-22 00:33:46,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77182 to 39289. [2022-11-22 00:33:46,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39289 states, 39246 states have (on average 2.233144779085767) internal successors, (87642), 39288 states have internal predecessors, (87642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:46,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39289 states to 39289 states and 87642 transitions. [2022-11-22 00:33:46,853 INFO L78 Accepts]: Start accepts. Automaton has 39289 states and 87642 transitions. Word has length 32 [2022-11-22 00:33:46,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:46,854 INFO L495 AbstractCegarLoop]: Abstraction has 39289 states and 87642 transitions. [2022-11-22 00:33:46,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:46,854 INFO L276 IsEmpty]: Start isEmpty. Operand 39289 states and 87642 transitions. [2022-11-22 00:33:46,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:33:46,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:46,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:46,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 00:33:46,860 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:33:46,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:46,860 INFO L85 PathProgramCache]: Analyzing trace with hash 152920762, now seen corresponding path program 7 times [2022-11-22 00:33:46,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:46,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286747470] [2022-11-22 00:33:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:46,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:48,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:48,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286747470] [2022-11-22 00:33:48,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286747470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:48,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:48,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:33:48,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405395667] [2022-11-22 00:33:48,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:48,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:33:48,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:48,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:33:48,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:33:48,328 INFO L87 Difference]: Start difference. First operand 39289 states and 87642 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:54,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:54,397 INFO L93 Difference]: Finished difference Result 47522 states and 104930 transitions. [2022-11-22 00:33:54,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 00:33:54,398 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:33:54,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:54,504 INFO L225 Difference]: With dead ends: 47522 [2022-11-22 00:33:54,504 INFO L226 Difference]: Without dead ends: 47522 [2022-11-22 00:33:54,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2022-11-22 00:33:54,505 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 936 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 5119 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 5212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 5119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:54,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 1348 Invalid, 5212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 5119 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-22 00:33:54,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47522 states. [2022-11-22 00:33:55,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47522 to 39252. [2022-11-22 00:33:55,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39252 states, 39209 states have (on average 2.2332882756509984) internal successors, (87565), 39251 states have internal predecessors, (87565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39252 states to 39252 states and 87565 transitions. [2022-11-22 00:33:55,381 INFO L78 Accepts]: Start accepts. Automaton has 39252 states and 87565 transitions. Word has length 32 [2022-11-22 00:33:55,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:55,382 INFO L495 AbstractCegarLoop]: Abstraction has 39252 states and 87565 transitions. [2022-11-22 00:33:55,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:55,382 INFO L276 IsEmpty]: Start isEmpty. Operand 39252 states and 87565 transitions. [2022-11-22 00:33:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:33:55,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:55,387 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, 1] [2022-11-22 00:33:55,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 00:33:55,387 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:33:55,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:55,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1772606476, now seen corresponding path program 13 times [2022-11-22 00:33:55,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:55,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367510577] [2022-11-22 00:33:55,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:55,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:56,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:56,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367510577] [2022-11-22 00:33:56,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367510577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:56,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:56,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-22 00:33:56,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693149557] [2022-11-22 00:33:56,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:56,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:33:56,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:56,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:33:56,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:33:56,429 INFO L87 Difference]: Start difference. First operand 39252 states and 87565 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:02,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:02,241 INFO L93 Difference]: Finished difference Result 48293 states and 106136 transitions. [2022-11-22 00:34:02,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 00:34:02,241 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:34:02,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:02,351 INFO L225 Difference]: With dead ends: 48293 [2022-11-22 00:34:02,351 INFO L226 Difference]: Without dead ends: 48289 [2022-11-22 00:34:02,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=345, Invalid=915, Unknown=0, NotChecked=0, Total=1260 [2022-11-22 00:34:02,352 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 1139 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 3337 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 4026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 3337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:02,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 854 Invalid, 4026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 3337 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-22 00:34:02,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48289 states. [2022-11-22 00:34:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48289 to 39539. [2022-11-22 00:34:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39539 states, 39496 states have (on average 2.2327324286003645) internal successors, (88184), 39538 states have internal predecessors, (88184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:03,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39539 states to 39539 states and 88184 transitions. [2022-11-22 00:34:03,201 INFO L78 Accepts]: Start accepts. Automaton has 39539 states and 88184 transitions. Word has length 32 [2022-11-22 00:34:03,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:03,201 INFO L495 AbstractCegarLoop]: Abstraction has 39539 states and 88184 transitions. [2022-11-22 00:34:03,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:03,202 INFO L276 IsEmpty]: Start isEmpty. Operand 39539 states and 88184 transitions. [2022-11-22 00:34:03,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:34:03,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:03,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:03,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-22 00:34:03,207 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:34:03,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:03,207 INFO L85 PathProgramCache]: Analyzing trace with hash 268611704, now seen corresponding path program 8 times [2022-11-22 00:34:03,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:03,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662509697] [2022-11-22 00:34:03,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:03,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:05,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:34:05,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:05,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662509697] [2022-11-22 00:34:05,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662509697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:05,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:05,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:34:05,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205443432] [2022-11-22 00:34:05,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:05,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:34:05,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:05,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:34:05,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:34:05,050 INFO L87 Difference]: Start difference. First operand 39539 states and 88184 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:12,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:12,808 INFO L93 Difference]: Finished difference Result 45237 states and 99880 transitions. [2022-11-22 00:34:12,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 00:34:12,808 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:34:12,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:12,916 INFO L225 Difference]: With dead ends: 45237 [2022-11-22 00:34:12,916 INFO L226 Difference]: Without dead ends: 45237 [2022-11-22 00:34:12,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2022-11-22 00:34:12,917 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 914 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 6948 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 6975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:12,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 1456 Invalid, 6975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 6948 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-22 00:34:12,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45237 states. [2022-11-22 00:34:13,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45237 to 39546. [2022-11-22 00:34:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39546 states, 39503 states have (on average 2.232691188011037) internal successors, (88198), 39545 states have internal predecessors, (88198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:13,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39546 states to 39546 states and 88198 transitions. [2022-11-22 00:34:13,789 INFO L78 Accepts]: Start accepts. Automaton has 39546 states and 88198 transitions. Word has length 32 [2022-11-22 00:34:13,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:13,790 INFO L495 AbstractCegarLoop]: Abstraction has 39546 states and 88198 transitions. [2022-11-22 00:34:13,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:13,790 INFO L276 IsEmpty]: Start isEmpty. Operand 39546 states and 88198 transitions. [2022-11-22 00:34:13,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:34:13,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:13,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:13,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 00:34:13,799 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:34:13,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:13,799 INFO L85 PathProgramCache]: Analyzing trace with hash 372630992, now seen corresponding path program 14 times [2022-11-22 00:34:13,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:13,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681547641] [2022-11-22 00:34:13,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:13,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:15,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:34:15,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:15,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681547641] [2022-11-22 00:34:15,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681547641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:15,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:15,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-22 00:34:15,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394697713] [2022-11-22 00:34:15,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:15,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:34:15,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:15,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:34:15,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:34:15,134 INFO L87 Difference]: Start difference. First operand 39546 states and 88198 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:20,190 INFO L93 Difference]: Finished difference Result 48951 states and 107545 transitions. [2022-11-22 00:34:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 00:34:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:34:20,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:20,281 INFO L225 Difference]: With dead ends: 48951 [2022-11-22 00:34:20,281 INFO L226 Difference]: Without dead ends: 48947 [2022-11-22 00:34:20,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2022-11-22 00:34:20,283 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1114 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 3244 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 3863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 3244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:20,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1062 Invalid, 3863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 3244 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-22 00:34:20,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48947 states. [2022-11-22 00:34:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48947 to 39627. [2022-11-22 00:34:20,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39627 states, 39584 states have (on average 2.232821341956346) internal successors, (88384), 39626 states have internal predecessors, (88384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39627 states to 39627 states and 88384 transitions. [2022-11-22 00:34:21,003 INFO L78 Accepts]: Start accepts. Automaton has 39627 states and 88384 transitions. Word has length 32 [2022-11-22 00:34:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:21,003 INFO L495 AbstractCegarLoop]: Abstraction has 39627 states and 88384 transitions. [2022-11-22 00:34:21,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 39627 states and 88384 transitions. [2022-11-22 00:34:21,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:34:21,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:21,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:21,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-22 00:34:21,008 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:34:21,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:21,008 INFO L85 PathProgramCache]: Analyzing trace with hash 734040164, now seen corresponding path program 9 times [2022-11-22 00:34:21,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:21,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692278044] [2022-11-22 00:34:21,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:21,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:34:22,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:22,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692278044] [2022-11-22 00:34:22,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692278044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:22,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:22,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:34:22,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138430664] [2022-11-22 00:34:22,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:22,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:34:22,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:22,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:34:22,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:34:22,384 INFO L87 Difference]: Start difference. First operand 39627 states and 88384 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:28,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:28,401 INFO L93 Difference]: Finished difference Result 45673 states and 100827 transitions. [2022-11-22 00:34:28,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 00:34:28,403 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:34:28,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:28,490 INFO L225 Difference]: With dead ends: 45673 [2022-11-22 00:34:28,490 INFO L226 Difference]: Without dead ends: 45673 [2022-11-22 00:34:28,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2022-11-22 00:34:28,491 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 911 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 5065 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 5094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 5065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:28,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 1648 Invalid, 5094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 5065 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 00:34:28,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45673 states. [2022-11-22 00:34:29,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45673 to 39545. [2022-11-22 00:34:29,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39545 states, 39502 states have (on average 2.232570502759354) internal successors, (88191), 39544 states have internal predecessors, (88191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:29,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39545 states to 39545 states and 88191 transitions. [2022-11-22 00:34:29,242 INFO L78 Accepts]: Start accepts. Automaton has 39545 states and 88191 transitions. Word has length 32 [2022-11-22 00:34:29,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:29,242 INFO L495 AbstractCegarLoop]: Abstraction has 39545 states and 88191 transitions. [2022-11-22 00:34:29,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 39545 states and 88191 transitions. [2022-11-22 00:34:29,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:34:29,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:29,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:34:29,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-22 00:34:29,249 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:34:29,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:29,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1933738206, now seen corresponding path program 15 times [2022-11-22 00:34:29,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:29,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910496691] [2022-11-22 00:34:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:29,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:30,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:34:30,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:30,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910496691] [2022-11-22 00:34:30,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910496691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:30,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:30,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:34:30,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740489527] [2022-11-22 00:34:30,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:30,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:34:30,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:30,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:34:30,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:34:30,096 INFO L87 Difference]: Start difference. First operand 39545 states and 88191 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:42,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:42,645 INFO L93 Difference]: Finished difference Result 62982 states and 138703 transitions. [2022-11-22 00:34:42,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-22 00:34:42,646 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:34:42,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:42,765 INFO L225 Difference]: With dead ends: 62982 [2022-11-22 00:34:42,765 INFO L226 Difference]: Without dead ends: 62982 [2022-11-22 00:34:42,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1394 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1241, Invalid=4611, Unknown=0, NotChecked=0, Total=5852 [2022-11-22 00:34:42,767 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 1725 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 8971 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 9320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 8971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:42,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 628 Invalid, 9320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 8971 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-22 00:34:42,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62982 states. [2022-11-22 00:34:43,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62982 to 40223. [2022-11-22 00:34:43,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40223 states, 40180 states have (on average 2.2309606769537083) internal successors, (89640), 40222 states have internal predecessors, (89640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:43,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40223 states to 40223 states and 89640 transitions. [2022-11-22 00:34:43,808 INFO L78 Accepts]: Start accepts. Automaton has 40223 states and 89640 transitions. Word has length 32 [2022-11-22 00:34:43,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:43,808 INFO L495 AbstractCegarLoop]: Abstraction has 40223 states and 89640 transitions. [2022-11-22 00:34:43,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:43,808 INFO L276 IsEmpty]: Start isEmpty. Operand 40223 states and 89640 transitions. [2022-11-22 00:34:43,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:34:43,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:43,814 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, 1] [2022-11-22 00:34:43,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-22 00:34:43,815 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:34:43,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:43,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2065735896, now seen corresponding path program 16 times [2022-11-22 00:34:43,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:43,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271503723] [2022-11-22 00:34:43,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:43,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:34:45,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:45,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271503723] [2022-11-22 00:34:45,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271503723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:45,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:45,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:34:45,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402776949] [2022-11-22 00:34:45,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:45,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:34:45,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:45,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:34:45,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:34:45,454 INFO L87 Difference]: Start difference. First operand 40223 states and 89640 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:51,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:51,261 INFO L93 Difference]: Finished difference Result 51048 states and 111723 transitions. [2022-11-22 00:34:51,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-22 00:34:51,262 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:34:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:51,348 INFO L225 Difference]: With dead ends: 51048 [2022-11-22 00:34:51,348 INFO L226 Difference]: Without dead ends: 51044 [2022-11-22 00:34:51,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-11-22 00:34:51,349 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1234 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 3799 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 4263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 3799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:51,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 2041 Invalid, 4263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 3799 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-22 00:34:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51044 states. [2022-11-22 00:34:52,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51044 to 41107. [2022-11-22 00:34:52,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41107 states, 41064 states have (on average 2.231127021235145) internal successors, (91619), 41106 states have internal predecessors, (91619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:52,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41107 states to 41107 states and 91619 transitions. [2022-11-22 00:34:52,148 INFO L78 Accepts]: Start accepts. Automaton has 41107 states and 91619 transitions. Word has length 32 [2022-11-22 00:34:52,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:52,148 INFO L495 AbstractCegarLoop]: Abstraction has 41107 states and 91619 transitions. [2022-11-22 00:34:52,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:34:52,148 INFO L276 IsEmpty]: Start isEmpty. Operand 41107 states and 91619 transitions. [2022-11-22 00:34:52,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:34:52,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:52,153 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, 1] [2022-11-22 00:34:52,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-22 00:34:52,153 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:34:52,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:52,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1884041426, now seen corresponding path program 10 times [2022-11-22 00:34:52,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:52,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569540837] [2022-11-22 00:34:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:52,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:34:53,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:53,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569540837] [2022-11-22 00:34:53,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569540837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:53,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:53,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:34:53,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099404684] [2022-11-22 00:34:53,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:53,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:34:53,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:53,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:34:53,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:34:53,829 INFO L87 Difference]: Start difference. First operand 41107 states and 91619 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:01,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:01,278 INFO L93 Difference]: Finished difference Result 47195 states and 103869 transitions. [2022-11-22 00:35:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 00:35:01,279 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:35:01,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:01,370 INFO L225 Difference]: With dead ends: 47195 [2022-11-22 00:35:01,370 INFO L226 Difference]: Without dead ends: 47195 [2022-11-22 00:35:01,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2022-11-22 00:35:01,371 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 1128 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 5872 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 5925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 5872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:01,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 2216 Invalid, 5925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 5872 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-22 00:35:01,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47195 states. [2022-11-22 00:35:02,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47195 to 41333. [2022-11-22 00:35:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41333 states, 41290 states have (on average 2.230685395979656) internal successors, (92105), 41332 states have internal predecessors, (92105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:02,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41333 states to 41333 states and 92105 transitions. [2022-11-22 00:35:02,177 INFO L78 Accepts]: Start accepts. Automaton has 41333 states and 92105 transitions. Word has length 32 [2022-11-22 00:35:02,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:02,177 INFO L495 AbstractCegarLoop]: Abstraction has 41333 states and 92105 transitions. [2022-11-22 00:35:02,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:02,177 INFO L276 IsEmpty]: Start isEmpty. Operand 41333 states and 92105 transitions. [2022-11-22 00:35:02,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:35:02,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:02,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:02,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-22 00:35:02,183 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:35:02,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:02,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2009640876, now seen corresponding path program 11 times [2022-11-22 00:35:02,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:02,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604987130] [2022-11-22 00:35:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:02,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:03,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:03,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:03,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604987130] [2022-11-22 00:35:03,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604987130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:03,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:03,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:35:03,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197200029] [2022-11-22 00:35:03,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:03,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:35:03,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:03,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:35:03,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:35:03,946 INFO L87 Difference]: Start difference. First operand 41333 states and 92105 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:11,229 INFO L93 Difference]: Finished difference Result 46673 states and 102877 transitions. [2022-11-22 00:35:11,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 00:35:11,230 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:35:11,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:11,301 INFO L225 Difference]: With dead ends: 46673 [2022-11-22 00:35:11,301 INFO L226 Difference]: Without dead ends: 46673 [2022-11-22 00:35:11,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 00:35:11,302 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 897 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 6208 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 6256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 6208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:11,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 2124 Invalid, 6256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 6208 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-22 00:35:11,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46673 states. [2022-11-22 00:35:11,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46673 to 41330. [2022-11-22 00:35:11,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41330 states, 41287 states have (on average 2.230653716666263) internal successors, (92097), 41329 states have internal predecessors, (92097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:11,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41330 states to 41330 states and 92097 transitions. [2022-11-22 00:35:11,996 INFO L78 Accepts]: Start accepts. Automaton has 41330 states and 92097 transitions. Word has length 32 [2022-11-22 00:35:11,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:11,997 INFO L495 AbstractCegarLoop]: Abstraction has 41330 states and 92097 transitions. [2022-11-22 00:35:11,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:11,997 INFO L276 IsEmpty]: Start isEmpty. Operand 41330 states and 92097 transitions. [2022-11-22 00:35:12,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:35:12,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:12,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:12,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-22 00:35:12,001 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:35:12,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:12,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1969839730, now seen corresponding path program 12 times [2022-11-22 00:35:12,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:12,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29706485] [2022-11-22 00:35:12,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:12,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:13,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:13,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29706485] [2022-11-22 00:35:13,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29706485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:13,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:13,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:35:13,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494363665] [2022-11-22 00:35:13,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:13,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:35:13,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:13,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:35:13,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:35:13,586 INFO L87 Difference]: Start difference. First operand 41330 states and 92097 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:19,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:19,267 INFO L93 Difference]: Finished difference Result 46719 states and 102965 transitions. [2022-11-22 00:35:19,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 00:35:19,268 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:35:19,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:19,344 INFO L225 Difference]: With dead ends: 46719 [2022-11-22 00:35:19,344 INFO L226 Difference]: Without dead ends: 46719 [2022-11-22 00:35:19,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 00:35:19,345 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 926 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 4827 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 4867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 4827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:19,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 1977 Invalid, 4867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 4827 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-22 00:35:19,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46719 states. [2022-11-22 00:35:19,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46719 to 41327. [2022-11-22 00:35:19,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41327 states, 41284 states have (on average 2.2306220327487645) internal successors, (92089), 41326 states have internal predecessors, (92089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:20,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41327 states to 41327 states and 92089 transitions. [2022-11-22 00:35:20,239 INFO L78 Accepts]: Start accepts. Automaton has 41327 states and 92089 transitions. Word has length 32 [2022-11-22 00:35:20,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:20,239 INFO L495 AbstractCegarLoop]: Abstraction has 41327 states and 92089 transitions. [2022-11-22 00:35:20,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:20,240 INFO L276 IsEmpty]: Start isEmpty. Operand 41327 states and 92089 transitions. [2022-11-22 00:35:20,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:35:20,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:20,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:20,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-22 00:35:20,245 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:35:20,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:20,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1880053548, now seen corresponding path program 13 times [2022-11-22 00:35:20,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:20,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278914198] [2022-11-22 00:35:20,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:20,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:21,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:21,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:21,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278914198] [2022-11-22 00:35:21,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278914198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:21,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:21,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:35:21,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596641551] [2022-11-22 00:35:21,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:21,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:35:21,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:21,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:35:21,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:35:21,885 INFO L87 Difference]: Start difference. First operand 41327 states and 92089 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:26,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:26,303 INFO L93 Difference]: Finished difference Result 46736 states and 102997 transitions. [2022-11-22 00:35:26,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 00:35:26,304 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:35:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:26,395 INFO L225 Difference]: With dead ends: 46736 [2022-11-22 00:35:26,395 INFO L226 Difference]: Without dead ends: 46736 [2022-11-22 00:35:26,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 00:35:26,396 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 880 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 3102 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:26,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 1948 Invalid, 3154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3102 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-22 00:35:26,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46736 states. [2022-11-22 00:35:27,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46736 to 41108. [2022-11-22 00:35:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41108 states, 41065 states have (on average 2.2311213929136735) internal successors, (91621), 41107 states have internal predecessors, (91621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:27,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41108 states to 41108 states and 91621 transitions. [2022-11-22 00:35:27,486 INFO L78 Accepts]: Start accepts. Automaton has 41108 states and 91621 transitions. Word has length 32 [2022-11-22 00:35:27,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:27,486 INFO L495 AbstractCegarLoop]: Abstraction has 41108 states and 91621 transitions. [2022-11-22 00:35:27,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:27,487 INFO L276 IsEmpty]: Start isEmpty. Operand 41108 states and 91621 transitions. [2022-11-22 00:35:27,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:35:27,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:27,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:27,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-22 00:35:27,492 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:35:27,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:27,492 INFO L85 PathProgramCache]: Analyzing trace with hash -507880726, now seen corresponding path program 17 times [2022-11-22 00:35:27,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:27,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000440965] [2022-11-22 00:35:27,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:27,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:28,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:28,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000440965] [2022-11-22 00:35:28,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000440965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:28,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:28,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:35:28,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572303142] [2022-11-22 00:35:28,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:28,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:35:28,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:28,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:35:28,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:35:28,592 INFO L87 Difference]: Start difference. First operand 41108 states and 91621 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:39,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:39,439 INFO L93 Difference]: Finished difference Result 63836 states and 140764 transitions. [2022-11-22 00:35:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-22 00:35:39,440 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:35:39,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:39,715 INFO L225 Difference]: With dead ends: 63836 [2022-11-22 00:35:39,715 INFO L226 Difference]: Without dead ends: 63836 [2022-11-22 00:35:39,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1020, Invalid=3402, Unknown=0, NotChecked=0, Total=4422 [2022-11-22 00:35:39,717 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 1474 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 8291 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 8688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 8291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:39,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 504 Invalid, 8688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 8291 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-22 00:35:39,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63836 states. [2022-11-22 00:35:40,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63836 to 41115. [2022-11-22 00:35:40,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41115 states, 41072 states have (on average 2.231082002337359) internal successors, (91635), 41114 states have internal predecessors, (91635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:41,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41115 states to 41115 states and 91635 transitions. [2022-11-22 00:35:41,013 INFO L78 Accepts]: Start accepts. Automaton has 41115 states and 91635 transitions. Word has length 32 [2022-11-22 00:35:41,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:41,015 INFO L495 AbstractCegarLoop]: Abstraction has 41115 states and 91635 transitions. [2022-11-22 00:35:41,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:41,016 INFO L276 IsEmpty]: Start isEmpty. Operand 41115 states and 91635 transitions. [2022-11-22 00:35:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:35:41,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:41,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:41,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-22 00:35:41,022 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:35:41,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:41,022 INFO L85 PathProgramCache]: Analyzing trace with hash -639878416, now seen corresponding path program 18 times [2022-11-22 00:35:41,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:41,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954998393] [2022-11-22 00:35:41,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:41,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:42,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:42,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954998393] [2022-11-22 00:35:42,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954998393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:42,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:42,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:35:42,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281866403] [2022-11-22 00:35:42,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:42,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:35:42,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:42,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:35:42,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:35:42,338 INFO L87 Difference]: Start difference. First operand 41115 states and 91635 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:48,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:48,916 INFO L93 Difference]: Finished difference Result 51055 states and 112004 transitions. [2022-11-22 00:35:48,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-22 00:35:48,917 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:35:48,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:49,138 INFO L225 Difference]: With dead ends: 51055 [2022-11-22 00:35:49,138 INFO L226 Difference]: Without dead ends: 51051 [2022-11-22 00:35:49,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 00:35:49,139 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 772 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 4858 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 5099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 4858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:49,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1733 Invalid, 5099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 4858 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-22 00:35:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51051 states. [2022-11-22 00:35:49,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51051 to 41232. [2022-11-22 00:35:49,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41232 states, 41189 states have (on average 2.230814052295516) internal successors, (91885), 41231 states have internal predecessors, (91885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:49,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41232 states to 41232 states and 91885 transitions. [2022-11-22 00:35:49,897 INFO L78 Accepts]: Start accepts. Automaton has 41232 states and 91885 transitions. Word has length 32 [2022-11-22 00:35:49,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:49,897 INFO L495 AbstractCegarLoop]: Abstraction has 41232 states and 91885 transitions. [2022-11-22 00:35:49,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:49,897 INFO L276 IsEmpty]: Start isEmpty. Operand 41232 states and 91885 transitions. [2022-11-22 00:35:49,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:35:49,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:49,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:49,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-22 00:35:49,903 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:35:49,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:49,903 INFO L85 PathProgramCache]: Analyzing trace with hash -985068390, now seen corresponding path program 14 times [2022-11-22 00:35:49,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:49,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75886945] [2022-11-22 00:35:49,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:49,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:52,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:52,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75886945] [2022-11-22 00:35:52,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75886945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:52,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:52,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:35:52,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397480491] [2022-11-22 00:35:52,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:52,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:35:52,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:35:52,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:35:52,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:35:52,240 INFO L87 Difference]: Start difference. First operand 41232 states and 91885 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:58,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:58,574 INFO L93 Difference]: Finished difference Result 47521 states and 104774 transitions. [2022-11-22 00:35:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 00:35:58,579 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:35:58,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:58,679 INFO L225 Difference]: With dead ends: 47521 [2022-11-22 00:35:58,679 INFO L226 Difference]: Without dead ends: 47521 [2022-11-22 00:35:58,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2022-11-22 00:35:58,679 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 972 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 5183 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 5213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 5183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:58,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 1853 Invalid, 5213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 5183 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-22 00:35:58,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47521 states. [2022-11-22 00:35:59,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47521 to 41220. [2022-11-22 00:35:59,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41220 states, 41177 states have (on average 2.2308084610340724) internal successors, (91858), 41219 states have internal predecessors, (91858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:59,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41220 states to 41220 states and 91858 transitions. [2022-11-22 00:35:59,498 INFO L78 Accepts]: Start accepts. Automaton has 41220 states and 91858 transitions. Word has length 32 [2022-11-22 00:35:59,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:59,498 INFO L495 AbstractCegarLoop]: Abstraction has 41220 states and 91858 transitions. [2022-11-22 00:35:59,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:59,498 INFO L276 IsEmpty]: Start isEmpty. Operand 41220 states and 91858 transitions. [2022-11-22 00:35:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:35:59,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:59,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:59,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-22 00:35:59,503 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:35:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:59,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1775157568, now seen corresponding path program 19 times [2022-11-22 00:35:59,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:59,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767462085] [2022-11-22 00:35:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:59,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:03,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:03,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767462085] [2022-11-22 00:36:03,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767462085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:03,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:03,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-22 00:36:03,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863297998] [2022-11-22 00:36:03,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:03,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-22 00:36:03,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:03,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-22 00:36:03,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2022-11-22 00:36:03,178 INFO L87 Difference]: Start difference. First operand 41220 states and 91858 transitions. Second operand has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:36:16,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:16,389 INFO L93 Difference]: Finished difference Result 51345 states and 112673 transitions. [2022-11-22 00:36:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-22 00:36:16,390 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:36:16,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:16,490 INFO L225 Difference]: With dead ends: 51345 [2022-11-22 00:36:16,490 INFO L226 Difference]: Without dead ends: 51344 [2022-11-22 00:36:16,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 925 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=810, Invalid=3096, Unknown=0, NotChecked=0, Total=3906 [2022-11-22 00:36:16,491 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 1074 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 7697 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 8537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 7697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:36:16,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 817 Invalid, 8537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 7697 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-22 00:36:16,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51344 states. [2022-11-22 00:36:17,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51344 to 41314. [2022-11-22 00:36:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41314 states, 41271 states have (on average 2.2309369775387076) internal successors, (92073), 41313 states have internal predecessors, (92073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:36:17,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41314 states to 41314 states and 92073 transitions. [2022-11-22 00:36:17,323 INFO L78 Accepts]: Start accepts. Automaton has 41314 states and 92073 transitions. Word has length 32 [2022-11-22 00:36:17,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:17,324 INFO L495 AbstractCegarLoop]: Abstraction has 41314 states and 92073 transitions. [2022-11-22 00:36:17,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:36:17,324 INFO L276 IsEmpty]: Start isEmpty. Operand 41314 states and 92073 transitions. [2022-11-22 00:36:17,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:36:17,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:17,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:17,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-22 00:36:17,329 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:36:17,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:17,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1687612520, now seen corresponding path program 20 times [2022-11-22 00:36:17,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:17,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16378282] [2022-11-22 00:36:17,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:17,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:21,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:21,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16378282] [2022-11-22 00:36:21,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16378282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:21,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:21,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-22 00:36:21,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136031914] [2022-11-22 00:36:21,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:21,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:36:21,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:21,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:36:21,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:36:21,872 INFO L87 Difference]: Start difference. First operand 41314 states and 92073 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:36:30,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:30,920 INFO L93 Difference]: Finished difference Result 51034 states and 112050 transitions. [2022-11-22 00:36:30,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 00:36:30,920 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:36:30,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:31,027 INFO L225 Difference]: With dead ends: 51034 [2022-11-22 00:36:31,027 INFO L226 Difference]: Without dead ends: 51033 [2022-11-22 00:36:31,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=317, Invalid=1405, Unknown=0, NotChecked=0, Total=1722 [2022-11-22 00:36:31,028 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 948 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 6029 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 6516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 6029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:36:31,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 787 Invalid, 6516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 6029 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-22 00:36:31,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51033 states. [2022-11-22 00:36:31,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51033 to 41319. [2022-11-22 00:36:31,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41319 states, 41276 states have (on average 2.2309090028103498) internal successors, (92083), 41318 states have internal predecessors, (92083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:36:31,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41319 states to 41319 states and 92083 transitions. [2022-11-22 00:36:31,730 INFO L78 Accepts]: Start accepts. Automaton has 41319 states and 92083 transitions. Word has length 32 [2022-11-22 00:36:31,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:31,730 INFO L495 AbstractCegarLoop]: Abstraction has 41319 states and 92083 transitions. [2022-11-22 00:36:31,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:36:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 41319 states and 92083 transitions. [2022-11-22 00:36:31,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:36:31,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:31,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:31,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-22 00:36:31,737 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:36:31,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash 716128614, now seen corresponding path program 21 times [2022-11-22 00:36:31,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:31,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997436153] [2022-11-22 00:36:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:36,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:36,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:36,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997436153] [2022-11-22 00:36:36,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997436153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:36,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:36,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-22 00:36:36,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884391213] [2022-11-22 00:36:36,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:36,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:36:36,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:36,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:36:36,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:36:36,245 INFO L87 Difference]: Start difference. First operand 41319 states and 92083 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:36:49,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:49,283 INFO L93 Difference]: Finished difference Result 51231 states and 112469 transitions. [2022-11-22 00:36:49,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-22 00:36:49,284 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:36:49,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:49,379 INFO L225 Difference]: With dead ends: 51231 [2022-11-22 00:36:49,379 INFO L226 Difference]: Without dead ends: 51230 [2022-11-22 00:36:49,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=382, Invalid=1780, Unknown=0, NotChecked=0, Total=2162 [2022-11-22 00:36:49,380 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 859 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 9264 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 9994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 9264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:36:49,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 920 Invalid, 9994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 9264 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-11-22 00:36:49,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51230 states. [2022-11-22 00:36:49,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51230 to 41335. [2022-11-22 00:36:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41335 states, 41292 states have (on average 2.230819529206626) internal successors, (92115), 41334 states have internal predecessors, (92115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:36:50,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41335 states to 41335 states and 92115 transitions. [2022-11-22 00:36:50,002 INFO L78 Accepts]: Start accepts. Automaton has 41335 states and 92115 transitions. Word has length 32 [2022-11-22 00:36:50,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:50,003 INFO L495 AbstractCegarLoop]: Abstraction has 41335 states and 92115 transitions. [2022-11-22 00:36:50,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:36:50,003 INFO L276 IsEmpty]: Start isEmpty. Operand 41335 states and 92115 transitions. [2022-11-22 00:36:50,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:36:50,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:50,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:50,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-22 00:36:50,007 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:36:50,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:50,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1837763468, now seen corresponding path program 22 times [2022-11-22 00:36:50,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:50,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583951010] [2022-11-22 00:36:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:50,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:54,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:54,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:54,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583951010] [2022-11-22 00:36:54,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583951010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:54,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:54,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-22 00:36:54,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901801122] [2022-11-22 00:36:54,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:54,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:36:54,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:54,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:36:54,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:36:54,383 INFO L87 Difference]: Start difference. First operand 41335 states and 92115 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:06,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:37:06,640 INFO L93 Difference]: Finished difference Result 51083 states and 112140 transitions. [2022-11-22 00:37:06,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-22 00:37:06,640 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:37:06,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:37:06,723 INFO L225 Difference]: With dead ends: 51083 [2022-11-22 00:37:06,723 INFO L226 Difference]: Without dead ends: 51082 [2022-11-22 00:37:06,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=346, Invalid=1546, Unknown=0, NotChecked=0, Total=1892 [2022-11-22 00:37:06,724 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 870 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 8843 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 9391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 8843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:37:06,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 831 Invalid, 9391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 8843 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-11-22 00:37:06,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51082 states. [2022-11-22 00:37:07,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51082 to 41335. [2022-11-22 00:37:07,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41335 states, 41292 states have (on average 2.230819529206626) internal successors, (92115), 41334 states have internal predecessors, (92115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:07,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41335 states to 41335 states and 92115 transitions. [2022-11-22 00:37:07,306 INFO L78 Accepts]: Start accepts. Automaton has 41335 states and 92115 transitions. Word has length 32 [2022-11-22 00:37:07,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:37:07,306 INFO L495 AbstractCegarLoop]: Abstraction has 41335 states and 92115 transitions. [2022-11-22 00:37:07,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:07,306 INFO L276 IsEmpty]: Start isEmpty. Operand 41335 states and 92115 transitions. [2022-11-22 00:37:07,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:37:07,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:37:07,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:37:07,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-22 00:37:07,311 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:37:07,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:37:07,312 INFO L85 PathProgramCache]: Analyzing trace with hash 379203762, now seen corresponding path program 23 times [2022-11-22 00:37:07,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:37:07,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981340254] [2022-11-22 00:37:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:37:07,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:37:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:37:08,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:37:08,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:37:08,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981340254] [2022-11-22 00:37:08,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981340254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:37:08,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:37:08,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-22 00:37:08,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256622650] [2022-11-22 00:37:08,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:37:08,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:37:08,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:37:08,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:37:08,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:37:08,546 INFO L87 Difference]: Start difference. First operand 41335 states and 92115 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:14,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:37:14,313 INFO L93 Difference]: Finished difference Result 49964 states and 109805 transitions. [2022-11-22 00:37:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 00:37:14,314 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:37:14,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:37:14,421 INFO L225 Difference]: With dead ends: 49964 [2022-11-22 00:37:14,422 INFO L226 Difference]: Without dead ends: 49960 [2022-11-22 00:37:14,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=280, Invalid=776, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 00:37:14,422 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1018 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 4263 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 4740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 4263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:37:14,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 1040 Invalid, 4740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 4263 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 00:37:14,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49960 states. [2022-11-22 00:37:15,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49960 to 41476. [2022-11-22 00:37:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41476 states, 41433 states have (on average 2.230685685323293) internal successors, (92424), 41475 states have internal predecessors, (92424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:15,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41476 states to 41476 states and 92424 transitions. [2022-11-22 00:37:15,277 INFO L78 Accepts]: Start accepts. Automaton has 41476 states and 92424 transitions. Word has length 32 [2022-11-22 00:37:15,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:37:15,277 INFO L495 AbstractCegarLoop]: Abstraction has 41476 states and 92424 transitions. [2022-11-22 00:37:15,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 41476 states and 92424 transitions. [2022-11-22 00:37:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:37:15,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:37:15,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:37:15,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-22 00:37:15,282 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:37:15,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:37:15,282 INFO L85 PathProgramCache]: Analyzing trace with hash 740612934, now seen corresponding path program 15 times [2022-11-22 00:37:15,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:37:15,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62214491] [2022-11-22 00:37:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:37:15,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:37:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:37:16,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:37:16,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:37:16,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62214491] [2022-11-22 00:37:16,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62214491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:37:16,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:37:16,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:37:16,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572405740] [2022-11-22 00:37:16,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:37:16,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:37:16,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:37:16,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:37:16,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:37:16,840 INFO L87 Difference]: Start difference. First operand 41476 states and 92424 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:22,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:37:22,452 INFO L93 Difference]: Finished difference Result 46988 states and 103709 transitions. [2022-11-22 00:37:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 00:37:22,452 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:37:22,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:37:22,541 INFO L225 Difference]: With dead ends: 46988 [2022-11-22 00:37:22,541 INFO L226 Difference]: Without dead ends: 46988 [2022-11-22 00:37:22,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2022-11-22 00:37:22,542 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 937 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 4558 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 4586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:37:22,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 1590 Invalid, 4586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4558 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-22 00:37:22,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46988 states. [2022-11-22 00:37:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46988 to 41472. [2022-11-22 00:37:23,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41472 states, 41429 states have (on average 2.2306838205122017) internal successors, (92415), 41471 states have internal predecessors, (92415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41472 states to 41472 states and 92415 transitions. [2022-11-22 00:37:23,353 INFO L78 Accepts]: Start accepts. Automaton has 41472 states and 92415 transitions. Word has length 32 [2022-11-22 00:37:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:37:23,354 INFO L495 AbstractCegarLoop]: Abstraction has 41472 states and 92415 transitions. [2022-11-22 00:37:23,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 41472 states and 92415 transitions. [2022-11-22 00:37:23,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:37:23,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:37:23,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:37:23,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-22 00:37:23,358 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:37:23,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:37:23,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1927165436, now seen corresponding path program 24 times [2022-11-22 00:37:23,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:37:23,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010478718] [2022-11-22 00:37:23,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:37:23,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:37:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:37:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:37:24,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:37:24,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010478718] [2022-11-22 00:37:24,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010478718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:37:24,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:37:24,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:37:24,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902655119] [2022-11-22 00:37:24,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:37:24,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:37:24,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:37:24,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:37:24,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:37:24,124 INFO L87 Difference]: Start difference. First operand 41472 states and 92415 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:36,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:37:36,989 INFO L93 Difference]: Finished difference Result 65121 states and 143384 transitions. [2022-11-22 00:37:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-22 00:37:36,990 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:37:36,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:37:37,116 INFO L225 Difference]: With dead ends: 65121 [2022-11-22 00:37:37,116 INFO L226 Difference]: Without dead ends: 65121 [2022-11-22 00:37:37,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1394 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1241, Invalid=4611, Unknown=0, NotChecked=0, Total=5852 [2022-11-22 00:37:37,117 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 1577 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 9656 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 10057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 9656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:37:37,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 666 Invalid, 10057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 9656 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-22 00:37:37,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65121 states. [2022-11-22 00:37:37,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65121 to 42036. [2022-11-22 00:37:37,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42036 states, 41993 states have (on average 2.2298002047960375) internal successors, (93636), 42035 states have internal predecessors, (93636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42036 states to 42036 states and 93636 transitions. [2022-11-22 00:37:37,958 INFO L78 Accepts]: Start accepts. Automaton has 42036 states and 93636 transitions. Word has length 32 [2022-11-22 00:37:37,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:37:37,958 INFO L495 AbstractCegarLoop]: Abstraction has 42036 states and 93636 transitions. [2022-11-22 00:37:37,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand 42036 states and 93636 transitions. [2022-11-22 00:37:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:37:37,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:37:37,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:37:37,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-22 00:37:37,964 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:37:37,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:37:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash -2059163126, now seen corresponding path program 25 times [2022-11-22 00:37:37,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:37:37,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911267268] [2022-11-22 00:37:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:37:37,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:37:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:37:39,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:37:39,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:37:39,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911267268] [2022-11-22 00:37:39,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911267268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:37:39,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:37:39,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:37:39,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197812130] [2022-11-22 00:37:39,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:37:39,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:37:39,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:37:39,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:37:39,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:37:39,657 INFO L87 Difference]: Start difference. First operand 42036 states and 93636 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:37:47,541 INFO L93 Difference]: Finished difference Result 52800 states and 115559 transitions. [2022-11-22 00:37:47,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-22 00:37:47,541 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:37:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:37:47,644 INFO L225 Difference]: With dead ends: 52800 [2022-11-22 00:37:47,644 INFO L226 Difference]: Without dead ends: 52796 [2022-11-22 00:37:47,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=409, Invalid=1397, Unknown=0, NotChecked=0, Total=1806 [2022-11-22 00:37:47,645 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 881 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 5617 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 5907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 5617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:37:47,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 2183 Invalid, 5907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 5617 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-22 00:37:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52796 states. [2022-11-22 00:37:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52796 to 42317. [2022-11-22 00:37:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42317 states, 42274 states have (on average 2.230259734115532) internal successors, (94282), 42316 states have internal predecessors, (94282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:48,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42317 states to 42317 states and 94282 transitions. [2022-11-22 00:37:48,357 INFO L78 Accepts]: Start accepts. Automaton has 42317 states and 94282 transitions. Word has length 32 [2022-11-22 00:37:48,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:37:48,357 INFO L495 AbstractCegarLoop]: Abstraction has 42317 states and 94282 transitions. [2022-11-22 00:37:48,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:48,358 INFO L276 IsEmpty]: Start isEmpty. Operand 42317 states and 94282 transitions. [2022-11-22 00:37:48,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:37:48,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:37:48,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:37:48,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-22 00:37:48,363 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:37:48,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:37:48,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1890614196, now seen corresponding path program 16 times [2022-11-22 00:37:48,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:37:48,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211858864] [2022-11-22 00:37:48,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:37:48,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:37:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:37:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:37:49,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:37:49,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211858864] [2022-11-22 00:37:49,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211858864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:37:49,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:37:49,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-22 00:37:49,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542927616] [2022-11-22 00:37:49,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:37:49,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:37:49,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:37:49,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:37:49,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:37:49,587 INFO L87 Difference]: Start difference. First operand 42317 states and 94282 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:53,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:37:53,869 INFO L93 Difference]: Finished difference Result 48291 states and 106559 transitions. [2022-11-22 00:37:53,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 00:37:53,870 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:37:53,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:37:53,951 INFO L225 Difference]: With dead ends: 48291 [2022-11-22 00:37:53,951 INFO L226 Difference]: Without dead ends: 48291 [2022-11-22 00:37:53,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=152, Invalid=604, Unknown=0, NotChecked=0, Total=756 [2022-11-22 00:37:53,952 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 753 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 3938 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 3963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:37:53,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1632 Invalid, 3963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3938 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-22 00:37:54,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48291 states. [2022-11-22 00:37:54,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48291 to 43058. [2022-11-22 00:37:54,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43058 states, 43015 states have (on average 2.228199465302801) internal successors, (95846), 43057 states have internal predecessors, (95846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:54,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43058 states to 43058 states and 95846 transitions. [2022-11-22 00:37:54,665 INFO L78 Accepts]: Start accepts. Automaton has 43058 states and 95846 transitions. Word has length 32 [2022-11-22 00:37:54,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:37:54,665 INFO L495 AbstractCegarLoop]: Abstraction has 43058 states and 95846 transitions. [2022-11-22 00:37:54,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:54,665 INFO L276 IsEmpty]: Start isEmpty. Operand 43058 states and 95846 transitions. [2022-11-22 00:37:54,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:37:54,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:37:54,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:37:54,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-22 00:37:54,671 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:37:54,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:37:54,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2016213646, now seen corresponding path program 17 times [2022-11-22 00:37:54,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:37:54,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293857525] [2022-11-22 00:37:54,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:37:54,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:37:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:37:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:37:56,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:37:56,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293857525] [2022-11-22 00:37:56,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293857525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:37:56,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:37:56,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:37:56,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458969440] [2022-11-22 00:37:56,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:37:56,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:37:56,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:37:56,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:37:56,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:37:56,201 INFO L87 Difference]: Start difference. First operand 43058 states and 95846 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:02,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:38:02,825 INFO L93 Difference]: Finished difference Result 49769 states and 109595 transitions. [2022-11-22 00:38:02,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 00:38:02,826 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:38:02,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:38:02,924 INFO L225 Difference]: With dead ends: 49769 [2022-11-22 00:38:02,924 INFO L226 Difference]: Without dead ends: 49769 [2022-11-22 00:38:02,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 00:38:02,925 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1020 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 5376 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 5420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 5376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:38:02,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 2015 Invalid, 5420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 5376 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-22 00:38:02,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49769 states. [2022-11-22 00:38:03,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49769 to 43049. [2022-11-22 00:38:03,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43049 states, 43006 states have (on average 2.228061200762684) internal successors, (95820), 43048 states have internal predecessors, (95820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43049 states to 43049 states and 95820 transitions. [2022-11-22 00:38:03,697 INFO L78 Accepts]: Start accepts. Automaton has 43049 states and 95820 transitions. Word has length 32 [2022-11-22 00:38:03,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:38:03,697 INFO L495 AbstractCegarLoop]: Abstraction has 43049 states and 95820 transitions. [2022-11-22 00:38:03,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:03,698 INFO L276 IsEmpty]: Start isEmpty. Operand 43049 states and 95820 transitions. [2022-11-22 00:38:03,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:38:03,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:38:03,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:38:03,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-22 00:38:03,703 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:38:03,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:38:03,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1963266960, now seen corresponding path program 18 times [2022-11-22 00:38:03,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:38:03,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946651771] [2022-11-22 00:38:03,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:38:03,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:38:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:38:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:38:05,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:38:05,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946651771] [2022-11-22 00:38:05,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946651771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:38:05,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:38:05,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:38:05,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933547919] [2022-11-22 00:38:05,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:38:05,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:38:05,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:38:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:38:05,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:38:05,200 INFO L87 Difference]: Start difference. First operand 43049 states and 95820 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:11,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:38:11,704 INFO L93 Difference]: Finished difference Result 49815 states and 109683 transitions. [2022-11-22 00:38:11,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 00:38:11,705 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:38:11,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:38:11,808 INFO L225 Difference]: With dead ends: 49815 [2022-11-22 00:38:11,808 INFO L226 Difference]: Without dead ends: 49815 [2022-11-22 00:38:11,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 00:38:11,812 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 803 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 5424 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 5462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 5424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:38:11,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 2136 Invalid, 5462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 5424 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-22 00:38:11,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49815 states. [2022-11-22 00:38:12,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49815 to 43043. [2022-11-22 00:38:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43043 states, 43000 states have (on average 2.2279767441860465) internal successors, (95803), 43042 states have internal predecessors, (95803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:12,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43043 states to 43043 states and 95803 transitions. [2022-11-22 00:38:12,762 INFO L78 Accepts]: Start accepts. Automaton has 43043 states and 95803 transitions. Word has length 32 [2022-11-22 00:38:12,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:38:12,762 INFO L495 AbstractCegarLoop]: Abstraction has 43043 states and 95803 transitions. [2022-11-22 00:38:12,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:12,762 INFO L276 IsEmpty]: Start isEmpty. Operand 43043 states and 95803 transitions. [2022-11-22 00:38:12,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:38:12,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:38:12,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:38:12,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-22 00:38:12,769 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:38:12,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:38:12,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1886626318, now seen corresponding path program 19 times [2022-11-22 00:38:12,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:38:12,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783969140] [2022-11-22 00:38:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:38:12,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:38:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:38:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:38:14,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:38:14,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783969140] [2022-11-22 00:38:14,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783969140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:38:14,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:38:14,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:38:14,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942571179] [2022-11-22 00:38:14,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:38:14,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:38:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:38:14,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:38:14,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:38:14,458 INFO L87 Difference]: Start difference. First operand 43043 states and 95803 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:20,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:38:20,331 INFO L93 Difference]: Finished difference Result 49832 states and 109715 transitions. [2022-11-22 00:38:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 00:38:20,331 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:38:20,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:38:20,426 INFO L225 Difference]: With dead ends: 49832 [2022-11-22 00:38:20,426 INFO L226 Difference]: Without dead ends: 49832 [2022-11-22 00:38:20,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 00:38:20,427 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 868 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 4609 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 4659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 4609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:38:20,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 2001 Invalid, 4659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 4609 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-22 00:38:20,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49832 states. [2022-11-22 00:38:21,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49832 to 42613. [2022-11-22 00:38:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42613 states, 42570 states have (on average 2.228729151984966) internal successors, (94877), 42612 states have internal predecessors, (94877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:21,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42613 states to 42613 states and 94877 transitions. [2022-11-22 00:38:21,149 INFO L78 Accepts]: Start accepts. Automaton has 42613 states and 94877 transitions. Word has length 32 [2022-11-22 00:38:21,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:38:21,149 INFO L495 AbstractCegarLoop]: Abstraction has 42613 states and 94877 transitions. [2022-11-22 00:38:21,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:21,149 INFO L276 IsEmpty]: Start isEmpty. Operand 42613 states and 94877 transitions. [2022-11-22 00:38:21,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:38:21,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:38:21,155 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, 1] [2022-11-22 00:38:21,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-22 00:38:21,155 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:38:21,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:38:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash -501307956, now seen corresponding path program 26 times [2022-11-22 00:38:21,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:38:21,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384228477] [2022-11-22 00:38:21,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:38:21,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:38:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:38:22,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:38:22,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:38:22,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384228477] [2022-11-22 00:38:22,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384228477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:38:22,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:38:22,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:38:22,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271429760] [2022-11-22 00:38:22,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:38:22,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:38:22,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:38:22,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:38:22,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:38:22,318 INFO L87 Difference]: Start difference. First operand 42613 states and 94877 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:38:33,109 INFO L93 Difference]: Finished difference Result 65803 states and 145026 transitions. [2022-11-22 00:38:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-22 00:38:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:38:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:38:33,237 INFO L225 Difference]: With dead ends: 65803 [2022-11-22 00:38:33,237 INFO L226 Difference]: Without dead ends: 65803 [2022-11-22 00:38:33,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1020, Invalid=3402, Unknown=0, NotChecked=0, Total=4422 [2022-11-22 00:38:33,237 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 1783 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 7779 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 8240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 7779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:38:33,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 489 Invalid, 8240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 7779 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-22 00:38:33,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65803 states. [2022-11-22 00:38:34,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65803 to 42618. [2022-11-22 00:38:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42618 states, 42575 states have (on average 2.228702290076336) internal successors, (94887), 42617 states have internal predecessors, (94887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:34,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42618 states to 42618 states and 94887 transitions. [2022-11-22 00:38:34,222 INFO L78 Accepts]: Start accepts. Automaton has 42618 states and 94887 transitions. Word has length 32 [2022-11-22 00:38:34,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:38:34,222 INFO L495 AbstractCegarLoop]: Abstraction has 42618 states and 94887 transitions. [2022-11-22 00:38:34,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:34,223 INFO L276 IsEmpty]: Start isEmpty. Operand 42618 states and 94887 transitions. [2022-11-22 00:38:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:38:34,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:38:34,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:38:34,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-22 00:38:34,228 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:38:34,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:38:34,228 INFO L85 PathProgramCache]: Analyzing trace with hash -633305646, now seen corresponding path program 27 times [2022-11-22 00:38:34,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:38:34,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995588445] [2022-11-22 00:38:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:38:34,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:38:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:38:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:38:35,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:38:35,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995588445] [2022-11-22 00:38:35,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995588445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:38:35,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:38:35,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:38:35,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269835431] [2022-11-22 00:38:35,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:38:35,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:38:35,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:38:35,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:38:35,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:38:35,930 INFO L87 Difference]: Start difference. First operand 42618 states and 94887 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:42,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:38:42,992 INFO L93 Difference]: Finished difference Result 52967 states and 116108 transitions. [2022-11-22 00:38:42,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-22 00:38:42,993 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:38:42,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:38:43,099 INFO L225 Difference]: With dead ends: 52967 [2022-11-22 00:38:43,099 INFO L226 Difference]: Without dead ends: 52963 [2022-11-22 00:38:43,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-11-22 00:38:43,100 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 927 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 5636 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 5946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 5636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:38:43,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 1681 Invalid, 5946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 5636 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 00:38:43,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52963 states. [2022-11-22 00:38:43,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52963 to 42602. [2022-11-22 00:38:43,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42602 states, 42559 states have (on average 2.22878827040109) internal successors, (94855), 42601 states have internal predecessors, (94855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:43,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42602 states to 42602 states and 94855 transitions. [2022-11-22 00:38:43,879 INFO L78 Accepts]: Start accepts. Automaton has 42602 states and 94855 transitions. Word has length 32 [2022-11-22 00:38:43,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:38:43,880 INFO L495 AbstractCegarLoop]: Abstraction has 42602 states and 94855 transitions. [2022-11-22 00:38:43,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:43,880 INFO L276 IsEmpty]: Start isEmpty. Operand 42602 states and 94855 transitions. [2022-11-22 00:38:43,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:38:43,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:38:43,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:38:43,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-22 00:38:43,885 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:38:43,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:38:43,886 INFO L85 PathProgramCache]: Analyzing trace with hash -978495620, now seen corresponding path program 20 times [2022-11-22 00:38:43,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:38:43,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115939437] [2022-11-22 00:38:43,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:38:43,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:38:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:38:45,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:38:45,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:38:45,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115939437] [2022-11-22 00:38:45,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115939437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:38:45,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:38:45,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:38:45,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583542789] [2022-11-22 00:38:45,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:38:45,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:38:45,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:38:45,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:38:45,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:38:45,577 INFO L87 Difference]: Start difference. First operand 42602 states and 94855 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:52,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:38:52,600 INFO L93 Difference]: Finished difference Result 49433 states and 108878 transitions. [2022-11-22 00:38:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 00:38:52,601 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:38:52,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:38:52,695 INFO L225 Difference]: With dead ends: 49433 [2022-11-22 00:38:52,695 INFO L226 Difference]: Without dead ends: 49433 [2022-11-22 00:38:52,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2022-11-22 00:38:52,696 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 940 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 5756 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 5787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 5756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:38:52,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1891 Invalid, 5787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 5756 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 00:38:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49433 states. [2022-11-22 00:38:53,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49433 to 42476. [2022-11-22 00:38:53,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42476 states, 42433 states have (on average 2.228760634411896) internal successors, (94573), 42475 states have internal predecessors, (94573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:53,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42476 states to 42476 states and 94573 transitions. [2022-11-22 00:38:53,452 INFO L78 Accepts]: Start accepts. Automaton has 42476 states and 94573 transitions. Word has length 32 [2022-11-22 00:38:53,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:38:53,453 INFO L495 AbstractCegarLoop]: Abstraction has 42476 states and 94573 transitions. [2022-11-22 00:38:53,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:38:53,453 INFO L276 IsEmpty]: Start isEmpty. Operand 42476 states and 94573 transitions. [2022-11-22 00:38:53,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:38:53,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:38:53,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:38:53,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-22 00:38:53,458 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:38:53,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:38:53,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1768584798, now seen corresponding path program 28 times [2022-11-22 00:38:53,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:38:53,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047831919] [2022-11-22 00:38:53,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:38:53,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:38:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:38:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:38:57,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:38:57,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047831919] [2022-11-22 00:38:57,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047831919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:38:57,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:38:57,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-22 00:38:57,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802910741] [2022-11-22 00:38:57,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:38:57,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-22 00:38:57,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:38:57,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-22 00:38:57,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-11-22 00:38:57,286 INFO L87 Difference]: Start difference. First operand 42476 states and 94573 transitions. Second operand has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:11,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:39:11,253 INFO L93 Difference]: Finished difference Result 52262 states and 114674 transitions. [2022-11-22 00:39:11,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-22 00:39:11,253 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:39:11,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:39:11,359 INFO L225 Difference]: With dead ends: 52262 [2022-11-22 00:39:11,359 INFO L226 Difference]: Without dead ends: 52261 [2022-11-22 00:39:11,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=445, Invalid=1717, Unknown=0, NotChecked=0, Total=2162 [2022-11-22 00:39:11,360 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 725 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 10060 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 10616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 10060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:39:11,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 719 Invalid, 10616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 10060 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-11-22 00:39:11,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52261 states. [2022-11-22 00:39:11,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52261 to 42557. [2022-11-22 00:39:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42557 states, 42514 states have (on average 2.228912828715247) internal successors, (94760), 42556 states have internal predecessors, (94760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:12,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42557 states to 42557 states and 94760 transitions. [2022-11-22 00:39:12,110 INFO L78 Accepts]: Start accepts. Automaton has 42557 states and 94760 transitions. Word has length 32 [2022-11-22 00:39:12,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:39:12,111 INFO L495 AbstractCegarLoop]: Abstraction has 42557 states and 94760 transitions. [2022-11-22 00:39:12,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:12,111 INFO L276 IsEmpty]: Start isEmpty. Operand 42557 states and 94760 transitions. [2022-11-22 00:39:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:39:12,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:39:12,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:39:12,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-22 00:39:12,116 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:39:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:39:12,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1694185290, now seen corresponding path program 29 times [2022-11-22 00:39:12,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:39:12,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489122456] [2022-11-22 00:39:12,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:39:12,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:39:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:39:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:39:16,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:39:16,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489122456] [2022-11-22 00:39:16,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489122456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:39:16,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:39:16,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-22 00:39:16,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439284959] [2022-11-22 00:39:16,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:39:16,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-22 00:39:16,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:39:16,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-22 00:39:16,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2022-11-22 00:39:16,411 INFO L87 Difference]: Start difference. First operand 42557 states and 94760 transitions. Second operand has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:33,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:39:33,959 INFO L93 Difference]: Finished difference Result 52084 states and 114318 transitions. [2022-11-22 00:39:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-22 00:39:33,960 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:39:33,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:39:34,060 INFO L225 Difference]: With dead ends: 52084 [2022-11-22 00:39:34,060 INFO L226 Difference]: Without dead ends: 52083 [2022-11-22 00:39:34,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=350, Invalid=1456, Unknown=0, NotChecked=0, Total=1806 [2022-11-22 00:39:34,061 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 711 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 12556 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 12950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 12556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:39:34,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 743 Invalid, 12950 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [394 Valid, 12556 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2022-11-22 00:39:34,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52083 states. [2022-11-22 00:39:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52083 to 42562. [2022-11-22 00:39:34,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42562 states, 42519 states have (on average 2.228885909828547) internal successors, (94770), 42561 states have internal predecessors, (94770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:34,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42562 states to 42562 states and 94770 transitions. [2022-11-22 00:39:34,694 INFO L78 Accepts]: Start accepts. Automaton has 42562 states and 94770 transitions. Word has length 32 [2022-11-22 00:39:34,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:39:34,695 INFO L495 AbstractCegarLoop]: Abstraction has 42562 states and 94770 transitions. [2022-11-22 00:39:34,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:34,695 INFO L276 IsEmpty]: Start isEmpty. Operand 42562 states and 94770 transitions. [2022-11-22 00:39:34,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:39:34,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:39:34,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:39:34,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-22 00:39:34,700 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:39:34,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:39:34,700 INFO L85 PathProgramCache]: Analyzing trace with hash 722701384, now seen corresponding path program 30 times [2022-11-22 00:39:34,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:39:34,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567866292] [2022-11-22 00:39:34,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:39:34,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:39:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:39:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:39:38,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:39:38,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567866292] [2022-11-22 00:39:38,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567866292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:39:38,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:39:38,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-22 00:39:38,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41886124] [2022-11-22 00:39:38,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:39:38,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:39:38,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:39:38,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:39:38,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:39:38,295 INFO L87 Difference]: Start difference. First operand 42562 states and 94770 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:52,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:39:52,867 INFO L93 Difference]: Finished difference Result 52480 states and 115154 transitions. [2022-11-22 00:39:52,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-22 00:39:52,868 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:39:52,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:39:52,963 INFO L225 Difference]: With dead ends: 52480 [2022-11-22 00:39:52,963 INFO L226 Difference]: Without dead ends: 52479 [2022-11-22 00:39:52,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 883 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=645, Invalid=3137, Unknown=0, NotChecked=0, Total=3782 [2022-11-22 00:39:52,964 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1186 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 8305 mSolverCounterSat, 1073 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 9378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1073 IncrementalHoareTripleChecker+Valid, 8305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:39:52,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1186 Valid, 615 Invalid, 9378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1073 Valid, 8305 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-11-22 00:39:53,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52479 states. [2022-11-22 00:39:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52479 to 42576. [2022-11-22 00:39:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42576 states, 42533 states have (on average 2.228810570615757) internal successors, (94798), 42575 states have internal predecessors, (94798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:53,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42576 states to 42576 states and 94798 transitions. [2022-11-22 00:39:53,587 INFO L78 Accepts]: Start accepts. Automaton has 42576 states and 94798 transitions. Word has length 32 [2022-11-22 00:39:53,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:39:53,588 INFO L495 AbstractCegarLoop]: Abstraction has 42576 states and 94798 transitions. [2022-11-22 00:39:53,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 42576 states and 94798 transitions. [2022-11-22 00:39:53,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:39:53,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:39:53,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:39:53,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-22 00:39:53,593 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:39:53,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:39:53,593 INFO L85 PathProgramCache]: Analyzing trace with hash -974745124, now seen corresponding path program 31 times [2022-11-22 00:39:53,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:39:53,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116639693] [2022-11-22 00:39:53,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:39:53,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:39:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:39:56,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:39:56,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:39:56,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116639693] [2022-11-22 00:39:56,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116639693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:39:56,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:39:56,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-22 00:39:56,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17911865] [2022-11-22 00:39:56,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:39:56,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:39:56,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:39:56,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:39:56,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:39:56,875 INFO L87 Difference]: Start difference. First operand 42576 states and 94798 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:40:13,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:40:13,706 INFO L93 Difference]: Finished difference Result 52336 states and 114843 transitions. [2022-11-22 00:40:13,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-22 00:40:13,706 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:40:13,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:40:13,809 INFO L225 Difference]: With dead ends: 52336 [2022-11-22 00:40:13,810 INFO L226 Difference]: Without dead ends: 52334 [2022-11-22 00:40:13,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=733, Invalid=3299, Unknown=0, NotChecked=0, Total=4032 [2022-11-22 00:40:13,811 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 1155 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 11147 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 11959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 11147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:40:13,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 638 Invalid, 11959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 11147 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-11-22 00:40:13,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52334 states. [2022-11-22 00:40:14,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52334 to 42560. [2022-11-22 00:40:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42560 states, 42517 states have (on average 2.228896676623468) internal successors, (94766), 42559 states have internal predecessors, (94766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:40:14,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42560 states to 42560 states and 94766 transitions. [2022-11-22 00:40:14,501 INFO L78 Accepts]: Start accepts. Automaton has 42560 states and 94766 transitions. Word has length 32 [2022-11-22 00:40:14,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:40:14,501 INFO L495 AbstractCegarLoop]: Abstraction has 42560 states and 94766 transitions. [2022-11-22 00:40:14,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:40:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand 42560 states and 94766 transitions. [2022-11-22 00:40:14,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:40:14,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:40:14,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:40:14,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-22 00:40:14,507 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:40:14,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:40:14,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1844336238, now seen corresponding path program 32 times [2022-11-22 00:40:14,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:40:14,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180664823] [2022-11-22 00:40:14,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:40:14,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:40:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:40:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:40:18,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:40:18,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180664823] [2022-11-22 00:40:18,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180664823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:40:18,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:40:18,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-22 00:40:18,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934574284] [2022-11-22 00:40:18,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:40:18,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:40:18,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:40:18,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:40:18,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:40:18,896 INFO L87 Difference]: Start difference. First operand 42560 states and 94766 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:40:35,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:40:35,866 INFO L93 Difference]: Finished difference Result 52641 states and 115484 transitions. [2022-11-22 00:40:35,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-22 00:40:35,867 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:40:35,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:40:35,963 INFO L225 Difference]: With dead ends: 52641 [2022-11-22 00:40:35,963 INFO L226 Difference]: Without dead ends: 52640 [2022-11-22 00:40:35,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-11-22 00:40:35,964 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 996 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 11240 mSolverCounterSat, 836 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 12076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 836 IncrementalHoareTripleChecker+Valid, 11240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:40:35,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 647 Invalid, 12076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [836 Valid, 11240 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-11-22 00:40:36,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52640 states. [2022-11-22 00:40:36,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52640 to 42588. [2022-11-22 00:40:36,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42588 states, 42545 states have (on average 2.22874603361147) internal successors, (94822), 42587 states have internal predecessors, (94822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:40:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42588 states to 42588 states and 94822 transitions. [2022-11-22 00:40:36,690 INFO L78 Accepts]: Start accepts. Automaton has 42588 states and 94822 transitions. Word has length 32 [2022-11-22 00:40:36,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:40:36,690 INFO L495 AbstractCegarLoop]: Abstraction has 42588 states and 94822 transitions. [2022-11-22 00:40:36,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:40:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 42588 states and 94822 transitions. [2022-11-22 00:40:36,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:40:36,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:40:36,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:40:36,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-22 00:40:36,695 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:40:36,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:40:36,695 INFO L85 PathProgramCache]: Analyzing trace with hash 146889730, now seen corresponding path program 33 times [2022-11-22 00:40:36,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:40:36,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196009836] [2022-11-22 00:40:36,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:40:36,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:40:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:40:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:40:40,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:40:40,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196009836] [2022-11-22 00:40:40,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196009836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:40:40,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:40:40,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-22 00:40:40,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384171044] [2022-11-22 00:40:40,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:40:40,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-22 00:40:40,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:40:40,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-22 00:40:40,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2022-11-22 00:40:40,286 INFO L87 Difference]: Start difference. First operand 42588 states and 94822 transitions. Second operand has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:40:58,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:40:58,822 INFO L93 Difference]: Finished difference Result 52527 states and 115253 transitions. [2022-11-22 00:40:58,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-22 00:40:58,822 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:40:58,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:40:58,919 INFO L225 Difference]: With dead ends: 52527 [2022-11-22 00:40:58,919 INFO L226 Difference]: Without dead ends: 52525 [2022-11-22 00:40:58,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=686, Invalid=3096, Unknown=0, NotChecked=0, Total=3782 [2022-11-22 00:40:58,920 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 932 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 12003 mSolverCounterSat, 859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 12862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 859 IncrementalHoareTripleChecker+Valid, 12003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:40:58,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 733 Invalid, 12862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [859 Valid, 12003 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2022-11-22 00:40:58,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52525 states. [2022-11-22 00:40:59,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52525 to 42574. [2022-11-22 00:40:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42574 states, 42531 states have (on average 2.228821330323764) internal successors, (94794), 42573 states have internal predecessors, (94794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:40:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42574 states to 42574 states and 94794 transitions. [2022-11-22 00:40:59,573 INFO L78 Accepts]: Start accepts. Automaton has 42574 states and 94794 transitions. Word has length 32 [2022-11-22 00:40:59,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:40:59,573 INFO L495 AbstractCegarLoop]: Abstraction has 42574 states and 94794 transitions. [2022-11-22 00:40:59,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:40:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 42574 states and 94794 transitions. [2022-11-22 00:40:59,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:40:59,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:40:59,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:40:59,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-22 00:40:59,578 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:40:59,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:40:59,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1406146678, now seen corresponding path program 34 times [2022-11-22 00:40:59,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:40:59,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540108395] [2022-11-22 00:40:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:40:59,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:40:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:41:02,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:41:02,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:41:02,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540108395] [2022-11-22 00:41:02,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540108395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:41:02,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:41:02,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-22 00:41:02,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785406318] [2022-11-22 00:41:02,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:41:02,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:41:02,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:41:02,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:41:02,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:41:02,822 INFO L87 Difference]: Start difference. First operand 42574 states and 94794 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:41:20,997 INFO L93 Difference]: Finished difference Result 52553 states and 115283 transitions. [2022-11-22 00:41:20,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-22 00:41:20,998 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:41:20,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:41:21,114 INFO L225 Difference]: With dead ends: 52553 [2022-11-22 00:41:21,115 INFO L226 Difference]: Without dead ends: 52550 [2022-11-22 00:41:21,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=851, Invalid=3571, Unknown=0, NotChecked=0, Total=4422 [2022-11-22 00:41:21,115 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 994 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 11734 mSolverCounterSat, 809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 12543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 809 IncrementalHoareTripleChecker+Valid, 11734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:41:21,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 716 Invalid, 12543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [809 Valid, 11734 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2022-11-22 00:41:21,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52550 states. [2022-11-22 00:41:21,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52550 to 42558. [2022-11-22 00:41:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42558 states, 42515 states have (on average 2.228907444431377) internal successors, (94762), 42557 states have internal predecessors, (94762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:21,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42558 states to 42558 states and 94762 transitions. [2022-11-22 00:41:21,820 INFO L78 Accepts]: Start accepts. Automaton has 42558 states and 94762 transitions. Word has length 32 [2022-11-22 00:41:21,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:41:21,820 INFO L495 AbstractCegarLoop]: Abstraction has 42558 states and 94762 transitions. [2022-11-22 00:41:21,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:21,821 INFO L276 IsEmpty]: Start isEmpty. Operand 42558 states and 94762 transitions. [2022-11-22 00:41:21,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:41:21,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:41:21,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:41:21,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-22 00:41:21,826 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:41:21,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:41:21,826 INFO L85 PathProgramCache]: Analyzing trace with hash -808540860, now seen corresponding path program 35 times [2022-11-22 00:41:21,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:41:21,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258251785] [2022-11-22 00:41:21,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:41:21,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:41:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:41:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:41:22,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:41:22,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258251785] [2022-11-22 00:41:22,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258251785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:41:22,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:41:22,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:41:22,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54714943] [2022-11-22 00:41:22,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:41:22,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:41:22,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:41:22,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:41:22,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:41:22,515 INFO L87 Difference]: Start difference. First operand 42558 states and 94762 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:32,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:41:32,524 INFO L93 Difference]: Finished difference Result 66726 states and 146811 transitions. [2022-11-22 00:41:32,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-22 00:41:32,525 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:41:32,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:41:32,662 INFO L225 Difference]: With dead ends: 66726 [2022-11-22 00:41:32,662 INFO L226 Difference]: Without dead ends: 66726 [2022-11-22 00:41:32,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1492 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1228, Invalid=4624, Unknown=0, NotChecked=0, Total=5852 [2022-11-22 00:41:32,663 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 2345 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 6406 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2345 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 6849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 6406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:41:32,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2345 Valid, 580 Invalid, 6849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 6406 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-22 00:41:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66726 states. [2022-11-22 00:41:33,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66726 to 42980. [2022-11-22 00:41:33,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42980 states, 42937 states have (on average 2.228334536646715) internal successors, (95678), 42979 states have internal predecessors, (95678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:33,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42980 states to 42980 states and 95678 transitions. [2022-11-22 00:41:33,548 INFO L78 Accepts]: Start accepts. Automaton has 42980 states and 95678 transitions. Word has length 32 [2022-11-22 00:41:33,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:41:33,548 INFO L495 AbstractCegarLoop]: Abstraction has 42980 states and 95678 transitions. [2022-11-22 00:41:33,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:33,549 INFO L276 IsEmpty]: Start isEmpty. Operand 42980 states and 95678 transitions. [2022-11-22 00:41:33,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:41:33,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:41:33,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:41:33,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-22 00:41:33,555 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:41:33,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:41:33,555 INFO L85 PathProgramCache]: Analyzing trace with hash -940538550, now seen corresponding path program 36 times [2022-11-22 00:41:33,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:41:33,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351046776] [2022-11-22 00:41:33,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:41:33,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:41:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:41:34,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:41:34,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:41:34,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351046776] [2022-11-22 00:41:34,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351046776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:41:34,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:41:34,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:41:34,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712042394] [2022-11-22 00:41:34,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:41:34,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:41:34,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:41:34,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:41:34,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:41:34,831 INFO L87 Difference]: Start difference. First operand 42980 states and 95678 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:42,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:41:42,088 INFO L93 Difference]: Finished difference Result 55001 states and 120164 transitions. [2022-11-22 00:41:42,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-22 00:41:42,088 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:41:42,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:41:42,195 INFO L225 Difference]: With dead ends: 55001 [2022-11-22 00:41:42,196 INFO L226 Difference]: Without dead ends: 54997 [2022-11-22 00:41:42,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=506, Invalid=1750, Unknown=0, NotChecked=0, Total=2256 [2022-11-22 00:41:42,196 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1306 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 4746 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 5320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 4746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:41:42,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 2060 Invalid, 5320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 4746 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 00:41:42,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54997 states. [2022-11-22 00:41:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54997 to 43591. [2022-11-22 00:41:42,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43591 states, 43548 states have (on average 2.2281161017727564) internal successors, (97030), 43590 states have internal predecessors, (97030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:42,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43591 states to 43591 states and 97030 transitions. [2022-11-22 00:41:42,986 INFO L78 Accepts]: Start accepts. Automaton has 43591 states and 97030 transitions. Word has length 32 [2022-11-22 00:41:42,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:41:42,986 INFO L495 AbstractCegarLoop]: Abstraction has 43591 states and 97030 transitions. [2022-11-22 00:41:42,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:42,986 INFO L276 IsEmpty]: Start isEmpty. Operand 43591 states and 97030 transitions. [2022-11-22 00:41:42,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:41:42,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:41:42,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:41:42,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-22 00:41:42,992 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:41:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:41:42,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1285728524, now seen corresponding path program 21 times [2022-11-22 00:41:42,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:41:42,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769778180] [2022-11-22 00:41:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:41:42,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:41:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:41:44,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:41:44,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:41:44,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769778180] [2022-11-22 00:41:44,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769778180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:41:44,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:41:44,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:41:44,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060769700] [2022-11-22 00:41:44,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:41:44,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:41:44,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:41:44,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:41:44,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:41:44,312 INFO L87 Difference]: Start difference. First operand 43591 states and 97030 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:50,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:41:50,550 INFO L93 Difference]: Finished difference Result 50772 states and 111561 transitions. [2022-11-22 00:41:50,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 00:41:50,551 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:41:50,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:41:50,656 INFO L225 Difference]: With dead ends: 50772 [2022-11-22 00:41:50,657 INFO L226 Difference]: Without dead ends: 50772 [2022-11-22 00:41:50,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=297, Invalid=1035, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 00:41:50,657 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 1272 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 4839 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 4892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 4839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:41:50,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 2200 Invalid, 4892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 4839 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 00:41:50,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50772 states. [2022-11-22 00:41:51,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50772 to 43104. [2022-11-22 00:41:51,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43104 states, 43061 states have (on average 2.228327256682381) internal successors, (95954), 43103 states have internal predecessors, (95954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:51,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43104 states to 43104 states and 95954 transitions. [2022-11-22 00:41:51,597 INFO L78 Accepts]: Start accepts. Automaton has 43104 states and 95954 transitions. Word has length 32 [2022-11-22 00:41:51,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:41:51,597 INFO L495 AbstractCegarLoop]: Abstraction has 43104 states and 95954 transitions. [2022-11-22 00:41:51,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:41:51,598 INFO L276 IsEmpty]: Start isEmpty. Operand 43104 states and 95954 transitions. [2022-11-22 00:41:51,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:41:51,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:41:51,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:41:51,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-22 00:41:51,603 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:41:51,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:41:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1160129074, now seen corresponding path program 22 times [2022-11-22 00:41:51,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:41:51,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718314785] [2022-11-22 00:41:51,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:41:51,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:41:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:41:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:41:52,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:41:52,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718314785] [2022-11-22 00:41:52,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718314785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:41:52,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:41:52,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:41:52,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672953008] [2022-11-22 00:41:52,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:41:52,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:41:52,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:41:52,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:41:52,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:41:52,772 INFO L87 Difference]: Start difference. First operand 43104 states and 95954 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:00,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:42:00,100 INFO L93 Difference]: Finished difference Result 50820 states and 111661 transitions. [2022-11-22 00:42:00,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-22 00:42:00,100 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:42:00,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:42:00,205 INFO L225 Difference]: With dead ends: 50820 [2022-11-22 00:42:00,206 INFO L226 Difference]: Without dead ends: 50820 [2022-11-22 00:42:00,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=330, Invalid=1152, Unknown=0, NotChecked=0, Total=1482 [2022-11-22 00:42:00,206 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1010 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 6101 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 6141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 6101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:42:00,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 2389 Invalid, 6141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 6101 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-22 00:42:00,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50820 states. [2022-11-22 00:42:00,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50820 to 43112. [2022-11-22 00:42:00,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43112 states, 43069 states have (on average 2.228377719473403) internal successors, (95974), 43111 states have internal predecessors, (95974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:00,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43112 states to 43112 states and 95974 transitions. [2022-11-22 00:42:00,960 INFO L78 Accepts]: Start accepts. Automaton has 43112 states and 95974 transitions. Word has length 32 [2022-11-22 00:42:00,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:42:00,960 INFO L495 AbstractCegarLoop]: Abstraction has 43112 states and 95974 transitions. [2022-11-22 00:42:00,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:00,960 INFO L276 IsEmpty]: Start isEmpty. Operand 43112 states and 95974 transitions. [2022-11-22 00:42:00,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:42:00,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:42:00,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:42:00,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-22 00:42:00,966 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:42:00,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:42:00,966 INFO L85 PathProgramCache]: Analyzing trace with hash -844642384, now seen corresponding path program 23 times [2022-11-22 00:42:00,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:42:00,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202350403] [2022-11-22 00:42:00,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:42:00,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:42:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:42:02,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:42:02,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:42:02,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202350403] [2022-11-22 00:42:02,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202350403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:42:02,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:42:02,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:42:02,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682568207] [2022-11-22 00:42:02,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:42:02,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:42:02,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:42:02,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:42:02,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:42:02,699 INFO L87 Difference]: Start difference. First operand 43112 states and 95974 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:08,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:42:08,490 INFO L93 Difference]: Finished difference Result 50868 states and 111757 transitions. [2022-11-22 00:42:08,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 00:42:08,490 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:42:08,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:42:08,610 INFO L225 Difference]: With dead ends: 50868 [2022-11-22 00:42:08,611 INFO L226 Difference]: Without dead ends: 50868 [2022-11-22 00:42:08,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 00:42:08,618 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 1028 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 4627 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 4669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 4627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:42:08,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 2199 Invalid, 4669 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 4627 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-22 00:42:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50868 states. [2022-11-22 00:42:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50868 to 43112. [2022-11-22 00:42:09,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43112 states, 43069 states have (on average 2.228377719473403) internal successors, (95974), 43111 states have internal predecessors, (95974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:09,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43112 states to 43112 states and 95974 transitions. [2022-11-22 00:42:09,433 INFO L78 Accepts]: Start accepts. Automaton has 43112 states and 95974 transitions. Word has length 32 [2022-11-22 00:42:09,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:42:09,434 INFO L495 AbstractCegarLoop]: Abstraction has 43112 states and 95974 transitions. [2022-11-22 00:42:09,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:09,434 INFO L276 IsEmpty]: Start isEmpty. Operand 43112 states and 95974 transitions. [2022-11-22 00:42:09,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:42:09,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:42:09,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:42:09,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-22 00:42:09,440 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:42:09,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:42:09,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1289716402, now seen corresponding path program 24 times [2022-11-22 00:42:09,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:42:09,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524410812] [2022-11-22 00:42:09,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:42:09,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:42:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:42:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:42:10,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:42:10,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524410812] [2022-11-22 00:42:10,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524410812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:42:10,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:42:10,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:42:10,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057128785] [2022-11-22 00:42:10,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:42:10,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:42:10,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:42:10,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:42:10,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:42:10,915 INFO L87 Difference]: Start difference. First operand 43112 states and 95974 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:16,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:42:16,229 INFO L93 Difference]: Finished difference Result 50892 states and 111805 transitions. [2022-11-22 00:42:16,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 00:42:16,230 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:42:16,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:42:16,333 INFO L225 Difference]: With dead ends: 50892 [2022-11-22 00:42:16,333 INFO L226 Difference]: Without dead ends: 50892 [2022-11-22 00:42:16,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=291, Invalid=1041, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 00:42:16,334 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 984 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 4089 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 4137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:42:16,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 2189 Invalid, 4137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4089 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-22 00:42:16,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50892 states. [2022-11-22 00:42:17,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50892 to 43112. [2022-11-22 00:42:17,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43112 states, 43069 states have (on average 2.228377719473403) internal successors, (95974), 43111 states have internal predecessors, (95974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:17,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43112 states to 43112 states and 95974 transitions. [2022-11-22 00:42:17,247 INFO L78 Accepts]: Start accepts. Automaton has 43112 states and 95974 transitions. Word has length 32 [2022-11-22 00:42:17,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:42:17,247 INFO L495 AbstractCegarLoop]: Abstraction has 43112 states and 95974 transitions. [2022-11-22 00:42:17,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:17,248 INFO L276 IsEmpty]: Start isEmpty. Operand 43112 states and 95974 transitions. [2022-11-22 00:42:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:42:17,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:42:17,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:42:17,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-22 00:42:17,253 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:42:17,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:42:17,254 INFO L85 PathProgramCache]: Analyzing trace with hash 887874190, now seen corresponding path program 25 times [2022-11-22 00:42:17,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:42:17,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789040842] [2022-11-22 00:42:17,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:42:17,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:42:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:42:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:42:18,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:42:18,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789040842] [2022-11-22 00:42:18,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789040842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:42:18,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:42:18,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:42:18,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747077213] [2022-11-22 00:42:18,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:42:18,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:42:18,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:42:18,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:42:18,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:42:18,649 INFO L87 Difference]: Start difference. First operand 43112 states and 95974 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:42:23,273 INFO L93 Difference]: Finished difference Result 49086 states and 108179 transitions. [2022-11-22 00:42:23,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 00:42:23,273 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:42:23,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:42:23,363 INFO L225 Difference]: With dead ends: 49086 [2022-11-22 00:42:23,364 INFO L226 Difference]: Without dead ends: 49086 [2022-11-22 00:42:23,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-11-22 00:42:23,364 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 740 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 3932 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 3964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:42:23,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 1743 Invalid, 3964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3932 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-22 00:42:23,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49086 states. [2022-11-22 00:42:24,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49086 to 43114. [2022-11-22 00:42:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43114 states, 43071 states have (on average 2.2283903322421117) internal successors, (95979), 43113 states have internal predecessors, (95979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43114 states to 43114 states and 95979 transitions. [2022-11-22 00:42:24,140 INFO L78 Accepts]: Start accepts. Automaton has 43114 states and 95979 transitions. Word has length 32 [2022-11-22 00:42:24,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:42:24,140 INFO L495 AbstractCegarLoop]: Abstraction has 43114 states and 95979 transitions. [2022-11-22 00:42:24,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:24,141 INFO L276 IsEmpty]: Start isEmpty. Operand 43114 states and 95979 transitions. [2022-11-22 00:42:24,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:42:24,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:42:24,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:42:24,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-22 00:42:24,146 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:42:24,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:42:24,147 INFO L85 PathProgramCache]: Analyzing trace with hash -404160306, now seen corresponding path program 26 times [2022-11-22 00:42:24,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:42:24,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79308582] [2022-11-22 00:42:24,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:42:24,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:42:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:42:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:42:25,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:42:25,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79308582] [2022-11-22 00:42:25,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79308582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:42:25,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:42:25,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:42:25,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970354927] [2022-11-22 00:42:25,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:42:25,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:42:25,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:42:25,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:42:25,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:42:25,546 INFO L87 Difference]: Start difference. First operand 43114 states and 95979 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:30,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:42:30,182 INFO L93 Difference]: Finished difference Result 49100 states and 108207 transitions. [2022-11-22 00:42:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 00:42:30,183 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:42:30,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:42:30,276 INFO L225 Difference]: With dead ends: 49100 [2022-11-22 00:42:30,277 INFO L226 Difference]: Without dead ends: 49100 [2022-11-22 00:42:30,277 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 [2022-11-22 00:42:30,277 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 865 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 3957 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 3991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:42:30,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 1610 Invalid, 3991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 3957 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-22 00:42:30,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49100 states. [2022-11-22 00:42:31,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49100 to 43112. [2022-11-22 00:42:31,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43112 states, 43069 states have (on average 2.228377719473403) internal successors, (95974), 43111 states have internal predecessors, (95974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43112 states to 43112 states and 95974 transitions. [2022-11-22 00:42:31,151 INFO L78 Accepts]: Start accepts. Automaton has 43112 states and 95974 transitions. Word has length 32 [2022-11-22 00:42:31,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:42:31,152 INFO L495 AbstractCegarLoop]: Abstraction has 43112 states and 95974 transitions. [2022-11-22 00:42:31,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:31,152 INFO L276 IsEmpty]: Start isEmpty. Operand 43112 states and 95974 transitions. [2022-11-22 00:42:31,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:42:31,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:42:31,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:42:31,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-22 00:42:31,158 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:42:31,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:42:31,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1704792718, now seen corresponding path program 27 times [2022-11-22 00:42:31,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:42:31,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415329950] [2022-11-22 00:42:31,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:42:31,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:42:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:42:32,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:42:32,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:42:32,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415329950] [2022-11-22 00:42:32,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415329950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:42:32,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:42:32,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:42:32,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737137619] [2022-11-22 00:42:32,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:42:32,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:42:32,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:42:32,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:42:32,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:42:32,687 INFO L87 Difference]: Start difference. First operand 43112 states and 95974 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:37,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:42:37,158 INFO L93 Difference]: Finished difference Result 49100 states and 108205 transitions. [2022-11-22 00:42:37,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 00:42:37,159 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:42:37,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:42:37,363 INFO L225 Difference]: With dead ends: 49100 [2022-11-22 00:42:37,364 INFO L226 Difference]: Without dead ends: 49100 [2022-11-22 00:42:37,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2022-11-22 00:42:37,364 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 754 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 3587 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 3623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:42:37,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1717 Invalid, 3623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3587 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-22 00:42:37,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49100 states. [2022-11-22 00:42:38,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49100 to 43106. [2022-11-22 00:42:38,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43106 states, 43063 states have (on average 2.228386317720549) internal successors, (95961), 43105 states have internal predecessors, (95961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:38,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43106 states to 43106 states and 95961 transitions. [2022-11-22 00:42:38,147 INFO L78 Accepts]: Start accepts. Automaton has 43106 states and 95961 transitions. Word has length 32 [2022-11-22 00:42:38,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:42:38,147 INFO L495 AbstractCegarLoop]: Abstraction has 43106 states and 95961 transitions. [2022-11-22 00:42:38,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:38,147 INFO L276 IsEmpty]: Start isEmpty. Operand 43106 states and 95961 transitions. [2022-11-22 00:42:38,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:42:38,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:42:38,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:42:38,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-22 00:42:38,153 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:42:38,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:42:38,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1713541298, now seen corresponding path program 28 times [2022-11-22 00:42:38,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:42:38,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714570785] [2022-11-22 00:42:38,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:42:38,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:42:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:42:39,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:42:39,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:42:39,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714570785] [2022-11-22 00:42:39,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714570785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:42:39,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:42:39,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:42:39,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219213138] [2022-11-22 00:42:39,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:42:39,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:42:39,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:42:39,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:42:39,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:42:39,525 INFO L87 Difference]: Start difference. First operand 43106 states and 95961 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:45,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:42:45,555 INFO L93 Difference]: Finished difference Result 49072 states and 108149 transitions. [2022-11-22 00:42:45,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 00:42:45,559 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:42:45,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:42:45,677 INFO L225 Difference]: With dead ends: 49072 [2022-11-22 00:42:45,677 INFO L226 Difference]: Without dead ends: 49072 [2022-11-22 00:42:45,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 00:42:45,678 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 999 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 5117 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 5153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 5117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:42:45,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1628 Invalid, 5153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 5117 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-22 00:42:45,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49072 states. [2022-11-22 00:42:46,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49072 to 43106. [2022-11-22 00:42:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43106 states, 43063 states have (on average 2.228386317720549) internal successors, (95961), 43105 states have internal predecessors, (95961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:46,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43106 states to 43106 states and 95961 transitions. [2022-11-22 00:42:46,443 INFO L78 Accepts]: Start accepts. Automaton has 43106 states and 95961 transitions. Word has length 32 [2022-11-22 00:42:46,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:42:46,444 INFO L495 AbstractCegarLoop]: Abstraction has 43106 states and 95961 transitions. [2022-11-22 00:42:46,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:46,444 INFO L276 IsEmpty]: Start isEmpty. Operand 43106 states and 95961 transitions. [2022-11-22 00:42:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:42:46,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:42:46,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:42:46,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-22 00:42:46,451 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:42:46,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:42:46,451 INFO L85 PathProgramCache]: Analyzing trace with hash -37417458, now seen corresponding path program 29 times [2022-11-22 00:42:46,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:42:46,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002321020] [2022-11-22 00:42:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:42:46,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:42:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:42:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:42:47,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:42:47,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002321020] [2022-11-22 00:42:47,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002321020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:42:47,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:42:47,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:42:47,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754475673] [2022-11-22 00:42:47,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:42:47,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:42:47,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:42:47,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:42:47,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:42:47,846 INFO L87 Difference]: Start difference. First operand 43106 states and 95961 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:53,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:42:53,126 INFO L93 Difference]: Finished difference Result 49076 states and 108157 transitions. [2022-11-22 00:42:53,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 00:42:53,127 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:42:53,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:42:53,218 INFO L225 Difference]: With dead ends: 49076 [2022-11-22 00:42:53,218 INFO L226 Difference]: Without dead ends: 49076 [2022-11-22 00:42:53,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-11-22 00:42:53,219 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 901 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 4487 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 4525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 4487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:42:53,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1626 Invalid, 4525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 4487 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 00:42:53,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49076 states. [2022-11-22 00:42:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49076 to 43102. [2022-11-22 00:42:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43102 states, 43059 states have (on average 2.2283610859518337) internal successors, (95951), 43101 states have internal predecessors, (95951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:54,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43102 states to 43102 states and 95951 transitions. [2022-11-22 00:42:54,025 INFO L78 Accepts]: Start accepts. Automaton has 43102 states and 95951 transitions. Word has length 32 [2022-11-22 00:42:54,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:42:54,025 INFO L495 AbstractCegarLoop]: Abstraction has 43102 states and 95951 transitions. [2022-11-22 00:42:54,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:42:54,025 INFO L276 IsEmpty]: Start isEmpty. Operand 43102 states and 95951 transitions. [2022-11-22 00:42:54,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:42:54,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:42:54,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:42:54,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-22 00:42:54,031 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:42:54,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:42:54,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1329451954, now seen corresponding path program 30 times [2022-11-22 00:42:54,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:42:54,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279710091] [2022-11-22 00:42:54,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:42:54,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:42:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:42:55,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:42:55,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:42:55,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279710091] [2022-11-22 00:42:55,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279710091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:42:55,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:42:55,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:42:55,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865466938] [2022-11-22 00:42:55,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:42:55,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:42:55,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:42:55,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:42:55,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:42:55,610 INFO L87 Difference]: Start difference. First operand 43102 states and 95951 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:43:00,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:43:00,613 INFO L93 Difference]: Finished difference Result 49068 states and 108135 transitions. [2022-11-22 00:43:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 00:43:00,614 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:43:00,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:43:00,711 INFO L225 Difference]: With dead ends: 49068 [2022-11-22 00:43:00,711 INFO L226 Difference]: Without dead ends: 49068 [2022-11-22 00:43:00,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-11-22 00:43:00,712 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 913 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 4119 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 4156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 4119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:43:00,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1606 Invalid, 4156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 4119 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-22 00:43:00,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49068 states. [2022-11-22 00:43:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49068 to 43086. [2022-11-22 00:43:01,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43086 states, 43043 states have (on average 2.2283298097251585) internal successors, (95914), 43085 states have internal predecessors, (95914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:43:01,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43086 states to 43086 states and 95914 transitions. [2022-11-22 00:43:01,705 INFO L78 Accepts]: Start accepts. Automaton has 43086 states and 95914 transitions. Word has length 32 [2022-11-22 00:43:01,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:43:01,706 INFO L495 AbstractCegarLoop]: Abstraction has 43086 states and 95914 transitions. [2022-11-22 00:43:01,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:43:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 43086 states and 95914 transitions. [2022-11-22 00:43:01,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:43:01,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:43:01,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:43:01,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-22 00:43:01,712 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:43:01,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:43:01,712 INFO L85 PathProgramCache]: Analyzing trace with hash -14453108, now seen corresponding path program 37 times [2022-11-22 00:43:01,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:43:01,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102128088] [2022-11-22 00:43:01,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:43:01,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:43:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:43:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:43:02,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:43:02,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102128088] [2022-11-22 00:43:02,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102128088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:43:02,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:43:02,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:43:02,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391556546] [2022-11-22 00:43:02,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:43:02,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:43:02,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:43:02,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:43:02,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:43:02,575 INFO L87 Difference]: Start difference. First operand 43086 states and 95914 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:43:11,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:43:11,211 INFO L93 Difference]: Finished difference Result 55050 states and 120337 transitions. [2022-11-22 00:43:11,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-22 00:43:11,212 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 00:43:11,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:43:11,331 INFO L225 Difference]: With dead ends: 55050 [2022-11-22 00:43:11,331 INFO L226 Difference]: Without dead ends: 55043 [2022-11-22 00:43:11,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=681, Invalid=2399, Unknown=0, NotChecked=0, Total=3080 [2022-11-22 00:43:11,331 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1375 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 6426 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 7073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 6426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:43:11,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 1864 Invalid, 7073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 6426 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 00:43:11,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55043 states. [2022-11-22 00:43:12,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55043 to 43755. [2022-11-22 00:43:12,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43755 states, 43712 states have (on average 2.228083821376281) internal successors, (97394), 43754 states have internal predecessors, (97394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:43:12,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43755 states to 43755 states and 97394 transitions. [2022-11-22 00:43:12,195 INFO L78 Accepts]: Start accepts. Automaton has 43755 states and 97394 transitions. Word has length 32 [2022-11-22 00:43:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:43:12,195 INFO L495 AbstractCegarLoop]: Abstraction has 43755 states and 97394 transitions. [2022-11-22 00:43:12,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:43:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 43755 states and 97394 transitions. [2022-11-22 00:43:12,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:43:12,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:43:12,201 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, 1] [2022-11-22 00:43:12,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-22 00:43:12,201 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-22 00:43:12,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:43:12,202 INFO L85 PathProgramCache]: Analyzing trace with hash -366041322, now seen corresponding path program 31 times [2022-11-22 00:43:12,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:43:12,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168746536] [2022-11-22 00:43:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:43:12,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:43:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:43:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:43:13,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:43:13,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168746536] [2022-11-22 00:43:13,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168746536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:43:13,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:43:13,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 00:43:13,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888138684] [2022-11-22 00:43:13,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:43:13,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:43:13,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:43:13,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:43:13,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:43:13,619 INFO L87 Difference]: Start difference. First operand 43755 states and 97394 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)